Starter shield

Abstract

The utility model relates to the technical field of starters, and discloses a starter shield which comprises a first shield and a second shield, an annular groove is formed in the left side wall of the first shield, a connecting ring is fixedly connected to the left side of the second shield, and a positioning hole is formed in the side surface of the connecting ring. The side surface of the first protective cover is fixedly connected with an annular plate, and the side surface of the second protective cover is fixedly connected with a sealing ring. According to the starter shield, the two shield bodies are arranged, one shield body is fixedly installed on the machine shells, the connecting ring is fixed into the annular groove through the fastening screw rod, the connecting ring is prevented from moving out of the interior of the annular groove, the fixing effect of the two machine shells is achieved, and when disassembly is needed, a semicircular limiting ring is rotated to move out of a clamping groove, so that disassembly is convenient. When the starter is in use, the screwing block can be rotated, the fastening screw is moved out of the positioning hole, and the two shells can be detached and separated to be used for maintaining the interior of the starter.

Description

Technical Field

[0001] The utility model relates to the technical field of starters, in particular to a starter shield. Background Technique

[0002] A starter, also called a motor, converts the electrical energy of a storage battery into mechanical energy to drive the engine flywheel to rotate to realize the start of the engine. The starter consists of a magnetic field (stator), an armature (rotor) and a commutator, and is arranged inside a housing, and an end cover is arranged at the rear side of the housing for protecting its interior.

[0003] The existing end cover of the starter shield is usually installed and fixed to the housing by screws. Installing and disassembling in this way is rather cumbersome. When the starter breaks down, it is not easy to quickly disassemble, resulting in low maintenance efficiency, and thus easily causing damage to its internal components. In view of this, the utility model provides a starter shield. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a starter shield to solve the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A starter shield includes a first shield and a second shield. An annular groove is formed in the left side wall of the first shield. A connecting ring is fixedly connected to the left side of the second shield. Positioning holes are formed in the side surface of the connecting ring. An annular plate is fixedly connected to the side surface of the first shield. A sealing ring is fixedly connected to the side surface of the second shield. Threaded holes are formed in the side surface of the annular plate. A tightening block is arranged on the side surface of the annular plate. A fastening screw rod is fixedly connected to the side of the tightening block close to the annular plate. The fastening screw rod is in threaded connection with the inside of the threaded hole. One end of the fastening screw rod penetrates through the side surface of the first shield and extends into the annular groove to be inserted into the inside of the positioning hole.

[0008] Preferably, two semi-circular limiting rings are rotatably connected to the side surface of the annular plate. The tightening block is in contact with the side surface of the annular plate. A clamping groove is formed in the right side of the tightening block. The semi-circular limiting ring is clamped inside the clamping groove. The clamping groove communicates with the front and rear sides of the tightening block.

[0009] Preferably, the number of the tightening blocks is six, and they are evenly distributed in a ring on the side surface of the annular plate. The two semi-circular limiting rings are symmetrically arranged up and down about the central axis of the annular plate. The semi-circular limiting ring is connected to the inside of three tightening blocks. The inner side wall of the clamping groove is arranged in an arc shape.

[0010] Preferably, a heat dissipation hole is opened on the right side of the second shield, and the right side of the second shield is fixedly connected with heat dissipation fins distributed in a ring, the interior of the second shield is fixedly connected with an internal thread ring, and the right side of the second shield is fixedly connected with a fixing ring, and the heat dissipation fins are located between the internal thread ring and the fixing ring.

[0011] Preferably, a dustproof mesh plate is provided inside the fixed ring, a circular groove is opened inside the dustproof mesh plate, the internal threaded ring is located inside the circular groove, the left side of the dustproof mesh plate overlaps with the right side of the heat dissipation fin, a movable groove is opened on the side surface of the internal threaded ring, the internal movability connection of the movable groove is connected with a limiting plate, the movable groove and the limiting plate are both I-shaped, the limiting plate is adapted to the inside of the movable groove, the left side of the limiting plate overlaps with the right side of the dustproof mesh plate, the inner side wall of the fixed ring is fixedly connected with an annular protrusion, and the annular protrusion is located on the right side of the dustproof mesh plate.

[0012] Preferably, the internal thread of the internal thread ring is connected to the external thread sleeve, and the side surface of the external thread sleeve overlaps with one side of the limiting plate.

[0013] Compared with the prior art, the utility model provides a starter shield, which has the following beneficial effects:

[0014] 1. The starter shield is provided with two shields, one of which is fixedly mounted on the casing, and the connecting ring is fixed to the inside of the annular groove by a fastening screw to prevent it from moving out of the inside of the annular groove, thereby achieving the fixing effect of the two casings, and a tightening block is provided to facilitate rotation with the tightening screw, and the tightening block can be limited by a semicircular limiting ring to prevent it from rotating, thereby ensuring the tight effect of the tightening screw and the inside of the threaded hole to prevent it from moving out of the positioning hole. When disassembly is required, the semicircular limiting ring is rotated to move it out of the slot, and the tightening block can be rotated to move the tightening screw out of the positioning hole, so that the two casings can be disassembled and separated for repairing the inside of the starter.

[0015] 2. The starter shield is convenient for dissipating heat inside the starter through heat dissipation holes and heat dissipation fins, and a dustproof screen is arranged on the right side of the second shield to reduce dust from entering the heat dissipation holes, and the dustproof screen is convenient for disassembly and cleaning, so that the dust on the dustproof screen can be cleaned to improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are merely exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0017] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0018] Figure 1 is a schematic diagram of the complete structure of the present invention;

[0019] Figure 2 is a front structural cross-sectional view of the present invention;

[0020] Figure 3 is the present invention Figure 2 magnified view of the structure at A therein;

[0021] Figure 4 is the present invention Figure 2 magnified view of the structure at B therein;

[0022] Figure 5 is a schematic diagram of the connection structure between the dust-proof net plate and the internal thread ring of the present invention.

[0023] Wherein: 1. First protective cover; 2. Second protective cover; 3. Annular groove; 4. Connecting ring; 5. Positioning hole; 6. Annular plate; 7. Sealing ring; 8. Threaded hole; 9. Tightening block; 10. Tightening screw; 11. Semi-circular limiting ring; 12. Card slot; 13. Heat dissipation hole; 14. Heat dissipation fin; 15. Internal thread ring; 16. Fixed ring; 17. Dust-proof net plate; 18. Activity groove; 19. Limiting plate; 20. External thread sleeve. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0025] Please refer to Figures 1-5 , a starter shield, which includes a first shield 1 and a second shield 2. An annular groove 3 is provided on the left side wall of the first shield 1. A connecting ring 4 is fixedly connected to the left side of the second shield 2. The connecting ring 4 is located inside the annular groove 3 and is adapted to its interior. The opposite sides of the first shield 1 and the second shield 2 are overlapped with each other. A positioning hole 5 is provided on the side surface of the connecting ring 4, and the number of the positioning holes 5 is six. An annular plate 6 is fixedly connected to the side surface of the first shield 1. The annular plate 6 is sleeved on the side surface of the second shield 2, and the side surface of the second shield 2 is overlapped with the inner side wall of the annular plate 6. A sealing ring 7 is fixedly connected to the side surface of the second shield 2. The opposite sides of the annular plate 6 and the sealing ring 7 are overlapped with each other to improve the sealing effect at the connection between the first shield 1 and the second shield 2. Threaded holes 8 are provided on the side surface of the annular plate 6, and the number of the threaded holes 8 is six. A tightening block 9 is provided on the side surface of the annular plate 6. A fastening screw 10 is fixedly connected to the side of the tightening block 9 close to the annular plate 6. The fastening screw 10 is threadedly connected to the interior of the threaded hole 8. One end of the fastening screw 10 penetrates through the side surface of the first shield 1 and extends into the interior of the annular groove 3 to be inserted into the interior of the positioning hole 5. The connecting ring 4 can be positioned by the fastening screw 10 to prevent it from moving out of the interior of the annular groove 3, thus realizing the fixation of the first shield 1 and the second shield 2.

[0026] Furthermore, two semi-circular limiting rings 11 are rotatably connected to the side surface of the annular plate 6. The tightening block 9 is overlapped with the side surface of the annular plate 6. A clamping groove 12 is provided on the right side of the tightening block 9. The semi-circular limiting ring 11 is clamped in the interior of the clamping groove 12. The clamping groove 12 communicates with the front and rear sides of the tightening block 9 to prevent the tightening block 9 from rotating and ensure the tightening effect between the fastening screw 10 and the interior of the threaded hole 8.

[0027] Furthermore, the number of the tightening blocks 9 is six, and they are evenly distributed in a ring shape on the side surface of the annular plate 6. The two semicircular limiting rings 11 are symmetrical about the central axis of the annular plate 6. The semicircular limiting rings 11 are connected to the inside of the three tightening blocks 9. The inner wall of the slot 12 is set as an arc surface. When the semicircular limiting rings 11 are clamped with the inside of the slot 12, the three tightening blocks 9 can be limited and fixed at the same time. The slot 12 is set as an arc surface, which improves the clamping effect of the semicircular limiting rings 11 and the slot 12.

[0028] Furthermore, a heat dissipation hole 13 is opened on the right side of the second shield 2. There are multiple heat dissipation holes 13, which can dissipate heat to the inside of the second shield 2. The right side of the second shield 2 is fixedly connected with heat dissipation fins 14 distributed in a ring. There are multiple heat dissipation fins 14, which speed up the heat dissipation. An internal threaded ring 15 is fixedly connected to the inside of the second shield 2. A fixing ring 16 is fixedly connected to the right side of the second shield 2. The heat dissipation fins 14 are located between the internal threaded ring 15 and the fixing ring 16.

[0029] Furthermore, a dustproof mesh plate 17 is provided inside the fixing ring 16, and the side surface of the dustproof mesh plate 17 overlaps with the inner side wall of the fixing ring 16. The dustproof mesh plate 17 can reduce the dust from entering the heat dissipation hole 13, thereby improving the heat dissipation effect. A circular groove is provided inside the dustproof mesh plate 17, and the internal threaded ring 15 is located inside the circular groove. The side surface of the internal threaded ring 15 overlaps with the inner side wall of the circular groove. The left side of the dustproof mesh plate 17 overlaps with the right side of the heat dissipation fin 14, and the dustproof mesh plate 17 is limited by the heat dissipation fin 14 to prevent it from moving to the left. A movable groove 18 is provided on the side surface of the internal threaded ring 15, and the movable groove 18 is internally movably connected to a limiting plate 19. The movable groove 18 and the limiting plate 19 are both I-shaped, and there are four of them. The limiting plate 19 is adapted to the inside of the movable groove 18 to prevent the limiting plate 19 from moving out of the movable groove 18 and falling out. The left side of the limiting plate 19 overlaps the right side of the dustproof mesh plate 17 to limit the center of the dustproof mesh plate 17. The inner wall of the fixing ring 16 is fixedly connected with an annular protrusion. The annular protrusion is located on the right side of the dustproof mesh plate 17, so that the edge of the dustproof mesh plate 17 can be limited. By cooperating with the heat dissipation fin 14 and the limiting plate 19, the right side of the dustproof mesh plate 17 can be limited, and the dustproof mesh plate 17 can be fixed inside the fixing ring 16 to prevent it from moving out.

[0030] Further, the internal thread of the internal thread ring 15 is connected to the external thread sleeve 20. The side surface of the external thread sleeve 20 abuts against one side of the limiting plate 19. Through the internal connection between the external thread sleeve 20 and the internal thread ring 15, it is fixed inside the internal thread ring 15. At the same time, the limiting plate 19 can be limited to prevent it from moving inside the moving slot 18, effectively limiting the dust-proof net plate 17 to prevent it from falling off. After turning the external thread sleeve 20 out of the internal thread ring 15, the limiting plate 19 can be moved to separate it from the dust-proof net plate 17, and then the dust-proof net plate 17 can be disassembled for cleaning the dust on its surface.

[0031] The use process of the present utility model is as follows:

[0032] When in use, connect the second protective cover 2 with the first protective cover 1, and the connecting ring 4 is located inside the annular groove 3. At the same time, the annular plate 6 abuts against the sealing ring 7 to improve the sealing effect at the connection between the second protective cover 2 and the first protective cover 1. Then rotate the tightening block 9 to make the tightening screw 10 rotate inside the threaded hole 8 and move into the positioning hole 5, so that the connecting ring 4 can be fixed inside the annular groove 3 to prevent it from moving, realizing the fixing effect between the first protective cover 1 and the second protective cover 2. Then rotate the semi-circular limiting ring 11 to make it snap into the inside of the clamping groove 12, so as to limit the tightening block 9 to prevent it from rotating and ensure the tightening effect between the tightening screw 10 and the threaded hole 8.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0034] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A starter shield, comprising a first shield (1) and a second shield (2), characterized in that: The left side wall of the first protective cover (1) is provided with an annular groove (3), the left side of the second protective cover (2) is fixedly connected with a connecting ring (4), the side surface of the connecting ring (4) is provided with a positioning hole (5), the side surface of the first protective cover (1) is fixedly connected with an annular plate (6), the side surface of the second protective cover (2) is fixedly connected with a sealing ring (7), the side surface of the annular plate (6) is provided with a threaded hole (8), the side surface of the annular plate (6) is provided with a tightening block (9), the side of the tightening block (9) close to the annular plate (6) is fixedly connected with a fastening screw (10), the fastening screw (10) is connected with the internal thread of the threaded hole (8), one end of the fastening screw (10) passes through the side surface of the first protective cover (1) and extends to the inside of the annular groove (3) and is plugged into the inside of the positioning hole (5).

2. A starter shield according to claim 1, characterized in that: The side surface of the annular plate (6) is rotatably connected to two semicircular limiting rings (11); the tightening block (9) overlaps the side surface of the annular plate (6); a clamping groove (12) is provided on the right side of the tightening block (9); the semicircular limiting ring (11) is clamped inside the clamping groove (12); and the clamping groove (12) is connected to the front and rear sides of the tightening block (9).

3. A starter shield according to claim 2, characterized in that: The number of the tightening blocks (9) is six and they are evenly distributed in an annular shape on the side surface of the annular plate (6). The two semicircular limiting rings (11) are symmetrical about the central axis of the annular plate (6) in the vertical direction. The semicircular limiting rings (11) are connected to the inside of the three tightening blocks (9). The inner side wall of the clamping groove (12) is arranged as an arc surface.

4. A starter shield according to claim 1, characterized in that: The right side of the second shield (2) is provided with heat dissipation holes (13); the right side of the second shield (2) is fixedly connected with heat dissipation fins (14) distributed in an annular shape; the interior of the second shield (2) is fixedly connected with an internal thread ring (15); the right side of the second shield (2) is fixedly connected with a fixing ring (16); and the heat dissipation fins (14) are located between the internal thread ring (15) and the fixing ring (16).

5. A starter shield according to claim 4, characterized in that: A dustproof mesh plate (17) is provided inside the fixed ring (16), a circular groove is provided inside the dustproof mesh plate (17), the internal threaded ring (15) is located inside the circular groove, the left side of the dustproof mesh plate (17) overlaps with the right side of the heat dissipation fin (14), a movable groove (18) is provided on the side surface of the internal threaded ring (15), the movable groove (18) is internally movably connected to a limiting plate (19), the movable groove (18) and the limiting plate (19) are both I-shaped, the limiting plate (19) is adapted to the inside of the movable groove (18), the left side of the limiting plate (19) overlaps with the right side of the dustproof mesh plate (17), the inner side wall of the fixed ring (16) is fixedly connected with an annular protrusion, and the annular protrusion is located on the right side of the dustproof mesh plate (17).

6. A starter shield according to claim 5, characterized in that: The internal thread of the internal thread ring (15) is connected to the external thread sleeve (20), and the side surface of the external thread sleeve (20) overlaps one side of the limiting plate (19).

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