A portable polishing device for spherical street lamp cover

Abstract

The present invention discloses a portable polishing device for a spherical street lamp cover, and relates to the technical field of lamp processing. The present invention includes a handheld mounting mechanism; an operating mechanism, which is arranged at the top of the mounting mechanism; the operating mechanism includes a positioning ring connected to the mounting mechanism and a polishing mechanism coaxially arranged and rotatably connected to the positioning ring; the polishing mechanism includes a rotating ring coaxially rotatably connected to the positioning ring, and a side spherical polishing arm that moves back and forth along its radial direction is provided on the rotating ring around its axis, the polishing end of the side spherical polishing arm is arranged toward the axis of the rotating ring, and the inner ring of the rotating ring is movably mounted with an end spherical polishing plate through a bracket, and the polishing end of the end spherical polishing plate is facing the polishing end of the side spherical polishing arm; a power output device is installed on the mounting mechanism, and the power output device is transmission-connected to the rotating ring for driving the rotating ring to rotate along its axis; so as to achieve the purpose of allowing workers to hold the device and polish the spherical lamp cover as a whole at one time.

Description

Technical Field

[0001] The invention relates to the technical field of lamp processing, in particular to a portable grinding device for a spherical street lamp cover. Background Art

[0002] Before lamp assembly, the lampshade surface needs to be polished to improve surface smoothness, prevent dust accumulation, and enhance aesthetics. Due to the special structure of the spherical lampshade, existing polishing methods mostly rely on manual polishing and handheld polishing equipment. This uneven polishing force results in poor gloss and low polishing efficiency, which cannot meet the needs of industrial production.

[0003] Among them, Chinese patent CN111745523B discloses a spherical lampshade surface polishing device, comprising a base; a polishing mechanism disposed on the base, comprising an elastic rod, one end of the elastic rod having a mating groove formed therein, the other end of the elastic rod inserted into the mating groove, a polishing brush disposed within the elastic rod, a plurality of pairs of adjustment plates symmetrically sleeved on the outer surface of the elastic rod, the outer surface of the adjustment plates being connected to a cylinder, the other end of the cylinder being fixed to the inner side of a circular frame, the cylinder being used to adjust the distance between the other end of the elastic rod and the mating groove, so that the elastic rod always has a circular shape when the distance between the other end of the elastic rod and the mating groove changes; a clamping mechanism for clamping the inner wall of the lampshade; a rotating mechanism for driving the clamping mechanism to rotate along the central axis of the elastic rod; and a driving mechanism for driving the rotating mechanism to reciprocate along the central axis of the elastic rod. The present invention utilizes the clamping mechanism to clamp the lampshade and move it to the polishing mechanism, adjusts the radius of the elastic rod to fit the outer wall of the lampshade, and polishes the lampshade using the polishing brush, thereby improving the polishing effect and efficiency.

[0004] However, the aforementioned patent only applies to large-scale equipment, and its portability and ease of use are not sufficient for outdoor construction scenarios. Furthermore, after long-term use, the globe lampshades of existing street lamps will show signs of wear, reducing their light transmittance. Currently, the most common maintenance method is to replace the lampshades and then return them to the factory for polishing using fixed equipment.

[0005] There is no device in the prior art that can be held by an operator to perform grinding and polishing on the spherical lampshade during routine maintenance.

[0006] However, due to its unique structure, it is difficult to polish the entire spherical lampshade in one go using existing handheld polishing equipment. The position of the lampshade relative to the polishing equipment must be constantly adjusted to achieve the goal of polishing the spherical surface. This makes it difficult to achieve uniform polishing. Due to different contact positions and different operator forces, the polishing effect on the spherical lampshade is often difficult to maintain uniformity, resulting in poor polishing results. Summary of the Invention

[0007] The object of the present invention is to provide a portable polishing device for a spherical street lamp cover, so that a worker can hold the device in hand and polish the entire spherical lamp cover at one time.

[0008] In order to achieve the above object, the present invention adopts the following technical means:

[0009] A portable polishing device for a spherical street lamp cover, comprising a handheld mounting mechanism;

[0010] An operating mechanism is provided on the top of the mounting mechanism;

[0011] The operating mechanism includes a positioning ring connected to the mounting mechanism and a grinding mechanism coaxially arranged and rotatably connected to the positioning ring;

[0012] The grinding mechanism includes a rotating ring coaxially connected to the positioning ring, a side spherical grinding arm is provided on the rotating ring around its axis and moves back and forth along its radial direction, the grinding end of the side spherical grinding arm is arranged toward the axis of the rotating ring, and an end spherical grinding plate is movably mounted on the inner ring of the rotating ring through a bracket, the grinding end of the end spherical grinding plate faces the grinding end of the side spherical grinding arm, and the end spherical grinding plate moves back and forth along the axis of the rotating ring;

[0013] A power output device is installed on the mounting mechanism, and the power output device is transmission-connected with the rotating ring for driving the rotating ring to rotate along its axis.

[0014] Preferably, the rotating ring is provided with a plurality of pulleys with a rotating axis parallel to the positioning ring around its axis on a side facing the positioning ring, the positioning ring is provided with a first slide groove coaxially on a side facing the rotating ring, the pulley is embedded in the first slide groove, the positioning ring is provided with a second slide groove with the same geometric data as the first slide groove on a side facing away from the rotating ring, a magnetic block is installed on the end of the pulley facing away from the rotating ring, and a receiving ring groove for accommodating the magnetic block is provided in the first slide groove, the power output device includes a transmission ring tooth coaxially arranged with the positioning ring, the transmission ring tooth is provided with a magnetic ring corresponding to the second slide groove on a side facing the positioning ring, the magnetic ring is slidably arranged in the second ring groove and is magnetically coupled to the magnetic block, the outer edge of the transmission ring tooth is meshed with the rotating end of the rotating motor, and the rotating motor is provided on the mounting mechanism.

[0015] Furthermore, a clamping mechanism is installed near the positioning ring of the mounting mechanism, and the clamping mechanism includes a mounting block, a pressure block is hinged on the mounting block, the rotation axis of the pressure block is arranged parallel to the positioning ring, and a pressure wheel is rotatably installed on the end of the pressure block. When the pressure block is rotated toward the axis of the positioning ring, the pressure block is arranged on the side of the transmission ring teeth facing away from the positioning ring, and the pressure wheel abuts against the transmission ring teeth. When the pressure wheel abuts against the transmission ring teeth, the rotation axis of the pressure wheel extends toward the axis of the positioning ring.

[0016] Furthermore, the side spherical grinding arm includes a sliding rod radially arranged along the rotating ring, the sliding rod passes through the side wall of the rotating ring, and a grinding head serving as the grinding end of the side spherical grinding arm is installed at one end of the sliding rod facing the axis of the rotating ring. A first compression spring is sleeved on the sliding rod, and the two ends of the first compression spring respectively abut against the inner wall of the rotating ring and the outer wall of the grinding head, and a limiting block is installed at the end of the sliding rod located outside the rotating ring.

[0017] Furthermore, the grinding head includes a bearing block connected to the sliding rod and abutting against the first compression spring, and a first grinding sponge is installed on one end of the bearing block facing the axis of the rotating ring.

[0018] Furthermore, the bracket includes a receiving rod arranged on the inner wall of the rotating ring and arranged around its axis along its axis, the side wall of the receiving rod is installed with a sliding rod parallel to the axis of the rotating ring, the end spherical polishing plate is slidably installed on the sliding rod, the end of the sliding rod is threadedly installed with a tightening block, a second compression spring is sleeved on the sliding rod, the two ends of the second compression spring are respectively abutted against the end spherical polishing plate and the tightening block, the sliding rod is provided on the inner ring of the positioning ring and moves with the rotating ring.

[0019] Furthermore, the end spherical polishing plate includes a baffle slidably arranged on the sliding rod, and a second polishing sponge is provided on the side of the baffle facing the side spherical polishing arm. The second polishing sponge group serves as the polishing end of the end spherical polishing plate, and the second polishing sponge abuts against the polishing end of the side spherical polishing arm, and the end of the second compression spring opposite to the clamping block abuts against the baffle.

[0020] Furthermore, there are two positioning rings, and the rotating ring is arranged between the two positioning rings. The mounting mechanism includes a claw-shaped support rod respectively arranged on the outer edges of the two positioning rings, and the two claw-shaped support rods are connected by a connecting plate at one end away from the positioning ring. A handle is installed on the bottom surface of the connecting plate, and the power output part of the power output device is arranged on the top surface of the connecting plate. A displacement channel is provided between the two claw-shaped support rods to facilitate the movement of the rotating ring.

[0021] During use, the present invention has the following beneficial effects:

[0022] When using this device to polish a spherical lampshade, the operator holds the mounting mechanism, leaves the positioning ring stationary, and activates the power output device. Under the power output device, the rotating ring begins to rotate about its axis. As the rotating ring rotates, the side spherical polishing arm, positioned around its axis, simultaneously rotates with the rotating ring. The polishing end of the side spherical polishing arm forms a polishing cavity, which is coaxial with the rotating ring. The top end of the spherical lampshade to be polished is inserted into the cavity along its axis. After the lateral spherical surface of the spherical lampshade contacts the side spherical polishing arm, the spherical surface is polished using the polishing end of the side spherical polishing arm. Then continue to push the spherical lampshade. As the spherical lampshade continues to move forward, due to its spherical structure, the side spherical polishing arm is continuously squeezed in the direction away from the axis of the rotating ring, thereby expanding the polishing cavity and allowing the spherical lampshade to move forward. Moreover, since it is the spherical lampshade that squeezes the side spherical polishing arm, the polishing end of the side spherical polishing arm is always in contact with the spherical lampshade during the advancement of the spherical lampshade. As the rotating ring rotates, the side spherical surface of the spherical lampshade is always evenly polished. Furthermore, for the end portion of the spherical lampshade that has not been polished during the forward movement, as the spherical lampshade continues to advance, when the top end of the spherical lampshade moves to the position of the end spherical polishing plate, as the spherical lampshade continues to move, the top end of the spherical lampshade pushes the end spherical polishing plate outward, and during the ejection, the polishing end of the end spherical polishing plate and the top end of the spherical lampshade are squeezed against each other, and the polishing end of the end spherical polishing plate is formed. At this time, after the polishing end of the end spherical polishing plate covers and fits the end portion of the spherical lampshade, the end spherical polishing plate continuously rotates with the rotating ring, that is, on the basis of the coaxial rotation of the end spherical polishing plate and the rotating ring, the spherical end portion of the spherical lampshade covered by the polishing end of the end spherical polishing plate is continuously polished. In this way, combined with the side spherical polishing arm, the spherical lampshade can be polished as a whole at one time using a handheld device, and not only the end portion of the spherical surface can be polished, but also the side portion of the spherical surface can be polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the explosion structure from the first perspective of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure from the second viewing angle of the present invention.

[0025] Figure 3 for Figure 2 Schematic diagram of the left view structure.

[0026] Figure 4 for Figure 3 Schematic diagram of the AA cross-section structure.

[0027] Figure 5 for Figure 2 Schematic diagram of the right view structure.

[0028] Figure 6 for Figure 2 Schematic diagram of the rear view structure.

[0029] Figure 7 for Figure 6 Schematic diagram of the BB cross-section structure.

[0030] Among them, 1-installation mechanism, 101-clamp-type support rod, 102-receiving plate, 103-handle, 104-displacement channel, 2-positioning ring, 3-rotating ring, 4-side spherical polishing arm, 41-sliding rod, 42-polishing head, 421-bearing block, 422-first polishing sponge, 43-first compression spring, 5-bracket, 51-receiving rod, 52-sliding rod, 53-tightening block, 54-second compression spring, 6-end spherical polishing plate, 61-baffle, 62-second polishing sponge, 7-power output device, 71-transmission ring gear, 72-magnetic ring, 73-rotating motor, 8-pulley, 9-first slide groove, 10-second slide groove, 11-magnetic block, 12-installation block, 13-pressure block, 14-pressure wheel. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] Please refer to Figures 1 to 7 As shown, a portable polishing device for a spherical street lamp cover includes a handheld mounting mechanism 1;

[0038] An operating mechanism is provided at the top of the mounting mechanism 1;

[0039] The operating mechanism includes a positioning ring 2 connected to the mounting mechanism 1 and a grinding mechanism coaxially arranged and rotatably connected to the positioning ring 2;

[0040] The grinding mechanism includes a rotating ring 3 coaxially connected to the positioning ring 2, and a side spherical grinding arm 4 is provided on the rotating ring 3 around its axis and moves back and forth along its radial direction. The grinding end of the side spherical grinding arm 4 is arranged toward the axis of the rotating ring 3. The inner ring of the rotating ring 3 is movably mounted with an end spherical grinding plate 6 through a bracket 5. The grinding end of the end spherical grinding plate 6 faces the grinding end of the side spherical grinding arm 4, and the end spherical grinding plate 6 moves back and forth along the axis of the rotating ring 3.

[0041] A power output device 7 is installed on the mounting mechanism 1 , and the power output device 7 is transmission-connected with the rotating ring 3 for driving the rotating ring 3 to rotate along its axis.

[0042] Thus, when using this device to polish a spherical lampshade, the operator holds the mounting mechanism 1, leaves the positioning ring 2 stationary, and activates the power output device 7. Under the action of the power output device 7, the rotating ring 3 begins to rotate about its axis. As the rotating ring 3 rotates, the side spherical polishing arm 4, which is arranged around its axis, can simultaneously rotate along with the rotating ring 3. A polishing cavity is formed by the polishing end of the side spherical polishing arm 4. The aforementioned polishing cavity is coaxially arranged with the rotating ring 3. The top end of the spherical lampshade to be polished is inserted into the polishing cavity along the axis. After the side spherical surface of the spherical lampshade contacts the side spherical polishing arm 4, the spherical surface is polished using the polishing end of the side spherical polishing arm 4. Then continue to push the spherical lampshade. As the spherical lampshade continues to move forward, due to its spherical structure, the side spherical polishing arm 4 is continuously squeezed in the direction away from the axis of the rotating ring 3, thereby expanding the polishing cavity and allowing the spherical lampshade to move forward. Moreover, since it is the spherical lampshade that squeezes the side spherical polishing arm 4, the polishing end of the side spherical polishing arm 4 is always in contact with the spherical lampshade during the advancement of the spherical lampshade. During the rotation of the rotating ring 3, the side spherical surface of the spherical lampshade is always evenly polished. And for the end of the spherical lampshade that has not been polished during the forward movement, as the spherical lampshade continues to move forward, when the top end of the spherical lampshade moves to the position of the end spherical polishing plate 6, as the spherical lampshade continues to move, the top end of the spherical lampshade pushes the end spherical polishing plate 6 outward. When pushing out, the polished end of the end spherical polishing plate 6 and the top end of the spherical lampshade are squeezed against each other, and the polished end of the end spherical polishing plate 6 is formed. At this time, after the polished end of the end spherical polishing plate 6 covers and fits the end of the spherical lampshade, the end spherical polishing plate 6 continues to rotate with the rotating ring 3, that is, on the basis of the coaxial rotation of the end spherical polishing plate 6 and the rotating ring 3, the spherical end of the spherical lampshade covered by the polished end of the end spherical polishing plate 6 is continuously polished. In this way, combined with the side spherical surface polishing arm 4, the spherical lampshade can be polished as a whole at one time using a handheld device, and not only the end of the spherical surface can be polished, but also the side of the spherical surface can be polished.

[0043] In order to integrate the overall structure of the handheld device and facilitate the rotation of the clamped and positioned rotating ring 3. In order to ensure the stability of the handheld device, the rotating ring 3 can also be driven so that the rotating ring 3 can rotate coaxially with the positioning ring 2, and at the same time, to prevent the power equipment from affecting the grinding process of the side spherical grinding arm 4 and the end spherical grinding plate 6.

[0044] The rotating ring 3 is provided with a plurality of pulleys 8 with a rotating axis parallel to the positioning ring 2 around its axis on the side facing the positioning ring 2, and the positioning ring 2 is coaxially provided with a first slide groove 9 on the side facing the rotating ring 3, and the pulley 8 is embedded in the first slide groove 9, and the positioning ring 2 is provided with a second slide groove 10 with the same geometric data as the first slide groove 9 on the side facing away from the rotating ring 3. A magnetic block 11 is installed on the end of the pulley 8 facing away from the rotating ring 3, and a receiving ring groove for accommodating the magnetic block 11 is provided in the first slide groove 9. The power output device 7 includes a transmission ring tooth 71 coaxially arranged with the positioning ring 2, and a magnetic ring 72 is provided on the side of the transmission ring tooth 71 facing the positioning ring 2 corresponding to the second slide groove 10. The magnetic ring 72 is slidably arranged in the second ring groove and is magnetically coupled with the magnetic block 11. The outer edge of the transmission ring tooth 71 is engaged with the rotating end of the rotating motor 73, and the rotating motor 73 is arranged on the mounting mechanism 1.

[0045] Thus, when the rotating ring 3 needs to rotate, the magnetic ring 72 is installed in the second chute 10, and the transmission ring teeth 71 are engaged with the rotating end of the rotating motor 73. The rotating end of the rotating motor 73 is used to drive the magnetic ring 72 to rotate around its own axis. At the same time, during the rotation of the magnetic ring 72, it can drive the magnetic block 11, which is magnetically engaged with it, to move within the receiving ring groove, thereby driving the pulley 8 to move within the first chute 9, thereby achieving the purpose of using the external rotating motor 73 to stably drive the rotating ring 3 clamped by the two positioning rings 2. Moreover, during the entire driving process, the driving process will not be affected by the rotation of the side spherical grinding arm 4 and the end spherical grinding plate 6.

[0046] At the same time, when not needed, the transmission ring gear 71 can be removed from the second chute 10, which not only facilitates maintenance but also prevents malfunction of the rotating ring 3. Most importantly, utilizing the magnetic coupling of the magnetic ring 72 to drive the rotating ring 3 effectively improves safety during the grinding process. If an operator's limbs inadvertently enter the rotation range of the side spherical grinding arm 4 during grinding, the magnetic decoupling property effectively reduces the risk of injury to the operator's limbs.

[0047] At the same time, in order to improve the stability of the transmission ring gear 71 during operation, a clamping mechanism is installed on the mounting mechanism 1 near the positioning ring 2, and the clamping mechanism includes a mounting block 12, and a pressure block 13 is hinged on the mounting block 12. The rotation axis of the pressure block 13 is arranged parallel to the positioning ring 2, and a pressure wheel 14 is rotatably installed on the end of the pressure block 13. When the pressure block 13 is rotated to face the axis of the positioning ring 2, the pressure block 13 is arranged on the side of the transmission ring gear 71 facing away from the positioning ring 2, and the pressure wheel 14 abuts against the transmission ring gear 71. When the pressure wheel 14 abuts against the transmission ring gear 71, the rotation axis of the pressure wheel 14 extends toward the axis of the positioning ring 2.

[0048] In this way, the pressing mechanism is used to press the transmission ring gear 71 to prevent it from escaping from the second sliding groove 10 during the rotation process.

[0049] Furthermore, for the side spherical grinding arm 4, the side spherical grinding arm 4 includes a sliding rod 41 arranged radially along the rotating ring 3, the sliding rod 41 passes through the side wall of the rotating ring 3, and the sliding rod 41 is installed with a grinding head 42 as the grinding end of the side spherical grinding arm 4 at one end facing the axis of the rotating ring 3. A first compression spring 43 is sleeved on the sliding rod 41, and the two ends of the first compression spring 43 are respectively in contact with the inner wall of the rotating ring 3 and the outer wall of the grinding head 42, and a limiting block is installed at the end of the sliding rod 41 located outside the rotating ring 3.

[0050] Meanwhile, the grinding head 42 includes a bearing block 421 connected to the sliding rod 41 and abutting against the first compression spring 43 , and a first grinding sponge 422 is installed on one end of the bearing block 421 facing the axis of the rotating ring 3 .

[0051] In this way, the polishing end of the side spherical polishing arm 4 is the first polishing sponge 422. In this way, the polishing end of the side spherical polishing arm 4 is in flexible contact with the spherical lampshade, which prevents the lampshade from being broken due to excessive force during the polishing process. In addition, the deformability of the first polishing sponge 422 allows the polishing end of the side spherical polishing arm 4 to always fit the spherical surface, avoiding the polishing end being separated from the spherical surface due to the change of the spherical surface during the forward movement of the spherical lampshade, resulting in uneven polishing.

[0052] Furthermore, the bracket 5 includes a receiving rod 51 arranged on the inner wall of the rotating ring 3 and around its axis. The side wall of the receiving rod 51 is installed with a sliding rod 52 parallel to the axis of the rotating ring 3. The end spherical polishing plate 6 is slidably installed on the sliding rod 52. The end of the sliding rod 52 is threadedly installed with a tightening block 53. A second compression spring 54 is sleeved on the sliding rod 52. The two ends of the second compression spring 54 are respectively in contact with the end spherical polishing plate 6 and the tightening block 53. The sliding rod 52 is provided on the inner ring of the positioning ring 2 and moves with the rotating ring 3.

[0053] In this way, the polishing effect of the end spherical polishing plate 6 can be adjusted by replacing springs with different elastic coefficients. Moreover, different second compression springs 54 can be selected according to the material of the spherical lampshade, thereby preventing the end of the spherical lampshade from being deformed due to compression with the polishing portion during the polishing process.

[0054] Furthermore, the end spherical polishing plate 6 includes a baffle 61 slidably arranged on the slide rod 52, and the baffle 61 is provided with a second polishing sponge 62 on the side facing the side spherical polishing arm 4. The second polishing sponge 62 group serves as the polishing end of the end spherical polishing plate 6, and the second polishing sponge 62 abuts against the polishing end of the side spherical polishing arm 4, and the end of the second compression spring 54 opposite to the tightening block 53 abuts against the baffle 61.

[0055] In this way, the deformable second polishing sponge 62 is brought into contact with the end of the spherical lampshade, and the end of the spherical lampshade is covered by the second polishing sponge 62 to perform polishing.

[0056] Furthermore, there are two positioning rings 2, and the rotating ring 3 is arranged between the two positioning rings 2. The mounting mechanism 1 includes a claw-shaped support rod 101 respectively arranged on the outer edges of the two positioning rings 2, and the two claw-shaped support rods 101 are connected by a receiving plate 102 at one end away from the positioning ring 2. A handle 103 is installed on the bottom surface of the receiving plate 102, and the power output part of the power output device 7 is arranged on the top surface of the receiving plate 102. A displacement channel 104 is provided between the two claw-shaped support rods 101 to facilitate the movement of the rotating ring 3.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable polishing device for spherical street lamp covers, characterized by: It includes a handheld mounting mechanism (1); An operating mechanism, arranged at the top of the mounting mechanism (1); The operating mechanism comprises a positioning ring (2) connected to the mounting mechanism (1) and a grinding mechanism coaxially arranged with the positioning ring (2) and rotatably connected thereto; The grinding mechanism comprises a rotating ring (3) coaxially connected to the positioning ring (2), a side spherical grinding arm (4) is provided on the rotating ring (3) around its axis and moves back and forth along its radial direction, the grinding end of the side spherical grinding arm (4) is arranged toward the axis of the rotating ring (3), and an end spherical grinding plate (6) is movably mounted on the inner ring of the rotating ring (3) through a bracket (5), the grinding end of the end spherical grinding plate (6) faces the grinding end of the side spherical grinding arm (4), and the end spherical grinding plate (6) moves back and forth along the axis of the rotating ring (3); A power output device (7) is installed on the mounting mechanism (1), and the power output device (7) is in transmission connection with the rotating ring (3) and is used to drive the rotating ring (3) to rotate along its axis; The rotating ring (3) is provided with a plurality of pulleys (8) whose rotating axes are parallel to the positioning ring (2) around its axis on one side facing the positioning ring (2); the positioning ring (2) is provided with a first slide groove (9) coaxially on one side facing the rotating ring (3); the pulley (8) is embedded in the first slide groove (9); the positioning ring (2) is provided with a second slide groove (10) having the same geometric data as the first slide groove (9) on the side facing away from the rotating ring (3); a magnetic block (11) is installed on one end of the pulley (8) facing away from the rotating ring (3); a receiving ring groove for receiving the magnetic block (11) is provided in the first slide groove (9); the power output device (7) includes a first slide groove (9) and a second slide groove (10) having the same geometric data as the first slide groove (9); The ring (2) is provided with a transmission ring tooth (71) coaxially, and the transmission ring tooth (71) is provided with a magnetic ring (72) on a side facing the positioning ring (2) corresponding to the second slide groove (10), and the magnetic ring (72) is slidably arranged in the second slide groove (10) and is magnetically coupled with the magnetic block (11), and the outer edge of the transmission ring tooth (71) is engaged with the rotating end of the rotating motor (73), and the rotating motor (73) is provided on the mounting mechanism (1); the mounting mechanism (1) is provided with a clamping mechanism at a position close to the positioning ring (2), and the clamping mechanism includes a mounting block (12), and a clamping block (13) is hinged on the mounting block (12), and the rotating axis of the clamping block (13) is connected to the mounting block (12). The positioning ring (2) is arranged in parallel, and a pressure wheel (14) is rotatably installed at the end of the pressure block (13). When the pressure block (13) is rotated to face the axis of the positioning ring (2), the pressure block (13) is arranged on the side of the transmission ring tooth (71) facing away from the positioning ring (2), and the pressure wheel (14) abuts against the transmission ring tooth (71). When the pressure wheel (14) abuts against the transmission ring tooth (71), the rotation axis of the pressure wheel (14) extends toward the axis of the positioning ring (2); the side spherical grinding arm (4) includes a sliding rod (41) arranged along the radial direction of the rotating ring (3), the sliding rod (41) passes through the side wall of the rotating ring (3), and the sliding rod A grinding head (42) serving as the grinding end of the side spherical grinding arm (4) is mounted on one end of (41) facing the axis of the rotating ring (3); a first compression spring (43) is sleeved on the sliding rod (41); two ends of the first compression spring (43) respectively abut against the inner wall of the rotating ring (3) and the outer wall of the grinding head (42); a limiting block is mounted on one end of the sliding rod (41) located outside the rotating ring (3); the grinding head (42) includes a bearing block (421) connected to the sliding rod (41) and abutting against the first compression spring (43); a first grinding sponge (422) is mounted on one end of the bearing block (421) facing the axis of the rotating ring (3);The bracket (5) includes a receiving rod (51) arranged on the inner wall of the rotating ring (3) and surrounding the axis thereof, and arranged along the axis thereof. The side wall of the receiving rod (51) is provided with a sliding rod (52) parallel to the axis of the rotating ring (3). The end spherical polishing plate (6) is slidably mounted on the sliding rod (52), and a tightening block (53) is threadedly mounted on the end of the sliding rod (52). A second compression spring (54) is sleeved on the sliding rod (52), and the two ends of the second compression spring (54) are respectively in contact with the end spherical polishing plate (6) and the tightening block (53). The sliding rod (52) ) is provided on the inner ring of the positioning ring (2) and moves with the rotating ring (3); the end spherical polishing plate (6) includes a baffle (61) slidably provided on the slide rod (52), and a second polishing sponge (62) is provided on a side of the baffle (61) facing the side spherical polishing arm (4), and the second polishing sponge (62) group serves as the polishing end of the end spherical polishing plate (6), and the second polishing sponge (62) abuts against the polishing end of the side spherical polishing arm (4), and the end of the second compression spring (54) opposite to the abutting block (53) abuts against the baffle (61). ; 2. The portable polishing device for a spherical street lamp cover according to claim 1, characterized in that: There are two positioning rings (2), and the rotating ring (3) is arranged between the two positioning rings (2). The mounting mechanism (1) includes a chelate-shaped support rod (101) respectively arranged on the outer edges of the two positioning rings (2). The ends of the two chelate-shaped support rods (101) away from the positioning rings (2) are connected through a receiving plate (102). A handle (103) is installed on the bottom surface of the receiving plate (102). The power output part of the power output device (7) is arranged on the top surface of the receiving plate (102). A displacement channel (104) is provided between the two chelate-shaped support rods (101) to facilitate the movement of the rotating ring (3).

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