Adjustable height protective cavity for micro motor protective shell

Abstract

The utility model provides a kind of height of adjustable protective cavity's micro motor protective shell, comprising: lower protective shell, the lower protective shell outside face symmetry is equipped with guide slot, guide slot is slidably connected fixed plate, and the lower end of fixed plate one end fixedly connected adjustment plate, fixed plate other end is symmetrically connected positioning rod, and fixed plate and adjustment plate lower end are all equipped with through-hole, transmission rod is movably connected in through-hole by bearing, and transmission rod first end is screwed fastening plate by screwing structure, and the position corresponding to positioning rod is equipped with positioning hole on the surface of fastening plate, while the outer side surface of upper protective shell is movably connected on the upper end of adjustment plate by bearing.The utility model is by the cooperation of adjustment plate, fixed plate, transmission rod, fastening plate and friction plate, so that the protective shell can still have good structural strength after adjusting the height of protective cavity, so as to effectively enhance the protective effect of the protective shell on micro motor body.

Description

Technical Field

[0001] This utility model relates to the field of micro-motor protection technology, specifically to a micro-motor protective shell with an adjustable protective cavity height. Background Technology

[0002] Micro motors, also known as miniature motors, are motors with a diameter of less than 160mm or a rated power of less than 750W. Micro motors are commonly used in control systems or transmission mechanical loads to perform functions such as detection, analysis, amplification, execution, or conversion of electromechanical signals or energy. Due to their small size, micro motors have low structural strength and lack external protective structures. When subjected to external forces, the outer surface of micro motors is easily damaged, leading to motor failure and affecting their normal operation.

[0003] A search revealed a prior art micro-motor protective housing (publication number: CN222302175U), which describes that "the protective housing body includes an upper protective shell and a lower protective shell. The lower end of the upper protective shell is provided with a connector plate. The interior of the side wall of the lower protective shell has a groove, and the connector plate slides into the groove. The front end of the protective housing body is provided with a front protective plate, and the middle position of the front protective plate is provided with an elastic connector. The interior of the protective housing body forms a protective cavity, and the micro-motor body is placed inside the protective cavity." This protective housing allows adjustment of the height of the protective cavity inside the protective housing body by adjusting the extension length of the connector plate. The height of the protective cavity can be adjusted according to the specifications of the micro motor body, making the protective shell suitable for micro motor bodies of different specifications and possessing good versatility. The protective shell protects the micro motor body, improves its structural strength, and prevents it from being damaged under external forces. However, when adjusting the height of the protective cavity, the plug-in plate is fixed only by the clamping member, resulting in a small fixing area between the plug-in plate and the groove, and a relatively simple fixing structure. Consequently, when the upper or lower protective shell is impacted by external forces, the fixing structure formed by the clamping member between the plug-in plate and the groove is prone to failure, leading to a weak protective effect of the protective shell. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a micro-motor protective housing with adjustable protective cavity height is provided to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, a micro-motor protective housing with adjustable protective cavity height is provided, comprising: a lower protective housing, a micro-motor body disposed between the lower and upper protective housings, and a plug-in plate of the lower protective housing embedded in a groove opened in the upper protective housing. Both the lower and upper protective housings have front protective plates on their surfaces. The outer side of the lower protective housing has symmetrically opened guide grooves, in which a fixed plate is slidably connected. One end of the fixed plate is fixedly connected to the lower end of an adjusting plate, and the other end of the fixed plate is symmetrically connected to a positioning rod. Both the fixed plate and the adjusting plate have through holes at their lower ends. A transmission rod is movably connected to the through hole via a bearing, and the first end of the transmission rod is screwed to a fastening plate via a screw connection structure. A positioning hole is opened on the surface of the fastening plate relative to the position of the positioning rod. Simultaneously, the upper end of the adjusting plate is movably connected to the outer side of the upper protective housing via a bearing.

[0006] Preferably, the two sets of guide grooves on the outer side of the lower protective shell are both elongated strips, and the end of the guide groove near the front protective plate is connected to the end face of the lower protective shell. At the same time, the cross-section of the guide groove is convex.

[0007] Preferably, the fixing plate has a convex cylindrical structure, and the dimensions of the protruding part of the fixing plate and the opening of the guide groove are matched, and the dimensions of the main body of the fixing plate and the inside of the guide groove are matched. At the same time, a friction layer is fixedly connected to the bottom of the opening of the guide groove, and the friction layer has a long strip structure.

[0008] Preferably, the main body of the fixing plate is fixedly connected with six sets of positioning rods at equal intervals around the circumference, and all six sets of positioning rods are cylindrical in shape, while the dimensions of the positioning rods and the positioning holes are compatible.

[0009] Preferably, the fastening plate has a circular structure, the inner cavity of the fastening plate has a threaded structure, and the fastening layer is fixedly connected to the side of the fastening plate away from the fixing plate. The fastening layer has a circular structure, and the dimensions of the outer side of the fastening plate are adapted to the dimensions of the guide groove.

[0010] Preferably, a friction plate is fixedly connected inside the guide groove. The friction plate has a long strip structure, and the friction stripes on the surface of the friction plate are evenly distributed in a wave shape.

[0011] Preferably, a handwheel is fixedly connected to the tail end of the transmission rod. The handwheel has a circular structure, and multiple sets of protrusions are fixedly connected around the arc surface of the handwheel at equal intervals. At the same time, the multiple sets of protrusions are all hemispherical structures, and an anti-slip pad is fixedly connected to the side of the handwheel near the surface of the adjustment plate.

[0012] Preferably, the adjusting plate has a rectangular structure, and two sets of adjusting plates are movably connected to both sides of the upper protective shell, with both ends of the adjusting plate having an arc-shaped structure. At the same time, the two sets of adjusting plates on the same side of the upper protective shell are distributed in a figure-eight shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the adjusting plate, the fixing plate, the transmission rod, the fastening plate and the friction plate, after the height of the protective cavity is adjusted, the plug-in plate and the groove can have a good fixing effect, which can help enhance the overall structural strength of the protective shell. Furthermore, the setting of the fastening layer and the friction layer, together with the inclined arrangement of the adjusting plate, can further enhance the stability of the fixed connection between the upper and lower protective shells, and can also effectively improve the impact resistance of the protective shell. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 This is a side view of an embodiment of the present utility model.

[0016] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0017] Figure 4 This is a cross-sectional structural diagram of the adjusting plate and fixing plate in an embodiment of the present utility model.

[0018] Figure 5 This is a schematic cross-sectional view of the fastening plate according to an embodiment of the present invention.

[0019] In the diagram: 1. Lower protective shell; 2. Micro motor body; 3. Adjustment plate; 4. Plug-in plate; 5. Upper protective shell; 6. Positioning hole; 7. Friction plate; 8. Fastening layer; 9. Guide groove; 10. Positioning rod; 11. Transmission rod; 12. Handwheel; 13. Friction layer; 14. Front protective plate; 15. Fastening plate; 16. Fixing plate. Detailed Implementation

[0020] Reference Figures 1 to 5 As shown, this utility model provides a micro-motor protective shell with adjustable protective cavity height, including: a lower protective shell 1, a micro-motor body 2 disposed between the lower protective shell 1 and the upper protective shell 5, and a plug plate 4 of the lower protective shell 1 embedded in a groove opened in the upper protective shell 5, and a front protective plate 14 is provided on the surface of both the lower protective shell 1 and the upper protective shell 5. The outer side of the lower protective shell 1 is symmetrically provided with guide grooves 9, and a fixed plate 16 is slidably connected in the guide grooves 9. One end of the fixed plate 16 is fixedly connected to the lower end of the adjusting plate 3, and the other end of the fixed plate 16 is symmetrically connected to the positioning rod 10. The lower ends of the fixed plate 16 and the adjusting plate 3 are provided with through holes. The transmission rod 11 is movably connected in the through holes through bearings, and the first end of the transmission rod 11 is screwed to the fastening plate 15 through a screw connection structure. The fastening plate 15 is provided with positioning holes 6 corresponding to the position of the positioning rod 10 on its surface. At the same time, the upper end of the adjusting plate 3 is movably connected to the outer side of the upper protective shell 5 through bearings.

[0021] In this embodiment, when it is necessary to adjust the height of the protective cavity inside the protective shell, the lower ends of the two sets of adjusting plates 3 on the same side of the lower protective shell 1 are pushed, so that the lower ends of the two sets of adjusting plates 3 can move synchronously in opposite directions. Then, when the tilt angle of the adjusting plates 3 changes, the plug-in plate 4 provided on the surface of the lower protective shell 1 will also change its position accordingly in the groove opened in the upper protective shell 5, thereby realizing the adjustment of the height of the protective cavity inside the protective shell. This allows the protective shell to adapt to different micro motors. After the height of the protective cavity is adjusted, the handwheel 12 drives the transmission rod 11 to rotate, and then the transmission... The movable rod 11 can push the screwed fastening plate 15 to move, so that the fastening layer 8 on the surface of the fastening plate 15 can abut against the surface of the friction plate 7, thereby effectively enhancing the stability of the fixed connection between the lower end of the adjusting plate 3 and the lower protective shell 1. Furthermore, when the upper protective shell 5 or the lower protective shell 1 is accidentally impacted, the force on the lower end of the adjusting plate 3 can be absorbed and weakened by the friction layer 13 and the fastening layer 8, respectively. Therefore, it can effectively reduce the probability of horizontal displacement of the lower end of the adjusting plate 3, thereby helping to enhance the overall structural strength of the protective shell and enhance the protective effect on the micro motor body 2.

[0022] Meanwhile, the structural distribution of the upper protective shell 5, lower protective shell 1, micro motor body 2, plug-in plate 4 and front protective plate 14 in this application are all existing mature technologies, which have been fully disclosed in a micro motor protective shell (publication number: CN222302175U).

[0023] As a preferred embodiment, the two sets of guide grooves 9 opened on the outer side of the lower protective shell 1 are both elongated, and the end of the guide groove 9 near the front protective plate 14 is connected to the end face of the lower protective shell 1. At the same time, the cross section of the guide groove 9 is convex.

[0024] In this embodiment, as Figure 1 and Figure 2 The single-end opening of the guide groove 9 facilitates the insertion of the fixing plate 16, thereby improving the ease of installation and removal of the protective shell, and also helps to limit the movement path of the fixing plate 16 and the lower end of the adjusting plate 3.

[0025] In a preferred embodiment, the fixing plate 16 has a U-shaped cylindrical structure, and the dimensions of the protrusion of the fixing plate 16 and the opening of the guide groove 9 are matched, and the dimensions of the main body of the fixing plate 16 and the interior of the guide groove 9 are matched. At the same time, the friction layer 13 is fixedly connected to the bottom of the opening of the guide groove 9, and the friction layer 13 has a long strip structure.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4The dimensions of the fixed plate 16 and the guide groove 9 are matched, which can help enhance the stability of the fixed plate 16 when it moves in the guide groove 9. At the same time, the friction layer 13 can enhance the frictional resistance between the lower end of the adjusting plate 3 and the connection between the fixed plate 16 and the lower protective shell 1 when the upper protective shell 5 or the lower protective shell 1 is impacted, thereby helping to reduce the probability of the lower end of the adjusting plate 3 accidentally shifting.

[0027] In a preferred embodiment, the main body of the fixing plate 16 is fixedly connected with six sets of positioning rods 10 at equal intervals around the circumference, and all six sets of positioning rods 10 are cylindrical in shape, while the dimensions of the positioning rods 10 and the positioning holes 6 are compatible.

[0028] In this embodiment, as Figure 2 , Figure 3 , Figure 4 and Figure 5 The positioning rod 10 and the positioning hole 6 are matched in size, which can help enhance the stability of the relative movement between the fastening plate 15 and the fixed plate 16, prevent the fastening plate 15 from rotating synchronously with the rotation of the transmission rod 11, and ensure that the transmission rod 11 can smoothly push the fastening plate 15 to abut against the inside of the guide groove 9, thereby enhancing the stability of the fixed connection between the lower end of the adjusting plate 3 and the lower protective shell 1.

[0029] In a preferred embodiment, the fastening plate 15 has a ring-shaped structure, the inner cavity of the fastening plate 15 has a threaded structure, and the fastening layer 8 is fixedly connected to the side of the fastening plate 15 away from the fixing plate 16. The fastening layer 8 has a circular structure, and the dimensions of the outer side of the fastening plate 15 are adapted to the dimensions of the guide groove 9.

[0030] In this embodiment, as Figure 3 , Figure 4 and Figure 5 The fastening layer 8 can be made of soft rubber, which can further enhance the abutment and fixing effect between the fastening plate 15 and the guide groove 9.

[0031] In a preferred embodiment, a friction plate 7 is fixedly connected inside the guide groove 9. The friction plate 7 has a long strip structure, and the friction stripes on the surface of the friction plate 7 are evenly distributed in a wave shape.

[0032] In this embodiment, as Figure 2 and Figure 3 The friction plate 7 further enhances the contact and fixing effect between the fastening plate 15 and the guide groove 9, effectively reducing the probability of accidental slippage at the lower ends of the fastening plate 15, the fixing plate 16 and the adjusting plate 3.

[0033] In a preferred embodiment, the end of the transmission rod 11 is fixedly connected to the handwheel 12. The handwheel 12 has a circular structure, and multiple sets of protrusions are fixedly connected around the arc surface of the handwheel 12 at equal intervals. At the same time, the multiple sets of protrusions are all hemispherical structures, and an anti-slip pad is fixedly connected to the side of the handwheel 12 near the surface of the adjustment plate 3.

[0034] In this embodiment, as Figure 2 , Figure 3 and Figure 4 The protrusions on the arc surface of the handwheel 12 effectively enhance the anti-slip effect, ensuring that the user can smoothly rotate the transmission rod 11 through the handwheel 12. At the same time, the anti-slip pads can effectively reduce the chance of accidental rotation of the handwheel 12 and the transmission rod 11.

[0035] As a preferred embodiment, the adjusting plate 3 has a rectangular structure, and two sets of adjusting plates 3 are movably connected to both sides of the upper protective shell 5, and both ends of the adjusting plate 3 have an arc-shaped structure. At the same time, the two sets of adjusting plates 3 on the same side of the upper protective shell 5 are distributed in a figure-eight shape.

[0036] In this embodiment, as Figure 1 , Figure 2 and Figure 4 The multiple sets of adjustment plates 3 can not only help enhance the structural strength between the upper protective shell 5 and the lower protective shell 1, but also achieve mutual restriction between each adjustment plate 3. Thus, even if the fixing structure between a single adjustment plate 3 and the lower protective shell 1 fails, the upper protective shell 5 and the lower protective shell 1 can still have good structural strength and fixing effect.

Claims

1. A micro-motor protective housing with adjustable protective cavity height, comprising: A lower protective shell (1) is provided, and a micro motor body (2) is provided between the lower protective shell (1) and the upper protective shell (5). The plug plate (4) of the lower protective shell (1) is embedded in the groove opened in the upper protective shell (5). A front protective plate (14) is provided on the surface of both the lower protective shell (1) and the upper protective shell (5). The lower protective shell (1) has symmetrical guide grooves (9) on its outer side. A fixed plate (16) is slidably connected in the guide groove (9). One end of the fixed plate (16) is fixedly connected to an adjustment plate. The lower end of the section plate (3) and the other end of the fixing plate (16) are symmetrically connected to the positioning rod (10). The lower ends of the fixing plate (16) and the adjusting plate (3) are both opened with through holes. The transmission rod (11) is movably connected in the through hole through the bearing. The first end of the transmission rod (11) is screwed to the fastening plate (15) through the screw connection structure. The fastening plate (15) is opened with a positioning hole (6) corresponding to the position of the positioning rod (10) on its surface. At the same time, the upper end of the adjusting plate (3) is movably connected to the outer side of the protective shell (5) through the bearing.

2. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The two sets of guide grooves (9) opened on the outer side of the lower protective shell (1) are both long strip structures, and the end of the guide groove (9) near the front protective plate (14) is connected to the end face of the lower protective shell (1). At the same time, the cross section of the guide groove (9) is convex.

3. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The fixing plate (16) has a convex cylindrical structure, and the dimensions of the protrusion of the fixing plate (16) and the opening of the guide groove (9) are matched. The dimensions of the main body of the fixing plate (16) and the inside of the guide groove (9) are matched. At the same time, the bottom of the opening of the guide groove (9) is fixedly connected to the friction layer (13), which has a long strip structure.

4. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The main body of the fixing plate (16) is fixedly connected with six sets of positioning rods (10) at equal intervals around the circumference, and all six sets of positioning rods (10) are cylindrical in shape. At the same time, the dimensions of the positioning rods (10) and the positioning holes (6) are compatible.

5. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The fastening plate (15) has a circular structure, and the inner cavity of the fastening plate (15) has a threaded structure. The fastening plate (15) is fixedly connected to the fastening layer (8) on the side away from the fixing plate (16), and the fastening layer (8) has a circular structure. At the same time, the dimensions of the outer side of the fastening plate (15) are compatible with the dimensions inside the guide groove (9).

6. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The guide groove (9) is fixedly connected to the friction plate (7). The friction plate (7) has a long strip structure, and the friction stripes on the surface of the friction plate (7) are evenly distributed in a wave shape.

7. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The handwheel (12) is fixedly connected to the end of the transmission rod (11). The handwheel (12) has a circular structure, and multiple sets of protrusions are fixedly connected around the arc surface of the handwheel (12) at equal intervals. At the same time, the multiple sets of protrusions are all hemispherical structures, and an anti-slip pad is fixedly connected to the side of the handwheel (12) near the surface of the adjustment plate (3).

8. The micro-motor protective shell with adjustable protective cavity height according to claim 1, characterized in that, The adjustment plate (3) has a rectangular structure, and two sets of adjustment plates (3) are movably connected to both sides of the upper protective shell (5). Both ends of the adjustment plate (3) have an arc-shaped structure, and the two sets of adjustment plates (3) on the same side of the upper protective shell (5) are distributed in a figure-eight shape.

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