Photo-thermal solar electric push rod with supporting transmission structure

Abstract

The utility model discloses a photo-thermal solar electric push rod with a supporting transmission structure in the technical field of electric push rods, which comprises a driving assembly, a transmission assembly and a push rod assembly, the driving assembly drives the push rod assembly to work through the transmission assembly, and the push rod assembly comprises an outer pipe, an inner pipe, a screw rod and a nut. The transmission assembly comprises a gear box body and a transmission gear set assembled in the gear box body, the outer pipe is assembled on the gear box body, a supporting transmission structure is arranged between the outer pipe and the gear box body, a coupler is arranged on the outer side of the lead screw, and the supporting transmission structure is connected with the coupler so as to support the coupler and ensure the stability of rotation of the lead screw. The outer portion of the supporting transmission structure is connected with the outer pipe so as to fix the position of the supporting transmission structure on the outer pipe, the plane ball bearing can be moved out of the inner space of the gear box body, the size and the weight of the gear box body are reduced, the overall cost is further reduced, and meanwhile the gap problem possibly generated by traditional bolt connection is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of electric linear actuator technology, specifically a solar thermal electric linear actuator with a support and transmission structure. Background Technology

[0002] Electric linear actuators are widely used in industrial, residential, solar energy, and medical equipment fields. For example, they are widely used in photovoltaic solar panels. In traditional designs, flat ball bearings are usually assembled inside the gearbox. This design increases the size and weight of the gearbox, thus increasing the overall cost. In addition, the outer tube needs to be connected and fixed to the gearbox with bolts. When the system is under high load, the connection between the gearbox and the outer tube will have a certain gap due to the bolt connection structure, which will affect the accuracy of the actuator and thus affect the performance and reliability of the entire mechanical system. Utility Model Content

[0003] To overcome the shortcomings of existing technical solutions, this utility model provides a solar thermal electric actuator with a support and transmission structure. It can effectively solve the technical problem that in traditional electric actuators, the outer tube needs to be connected and fixed to the gearbox body with bolts. When the system is under high load, a certain gap will be generated at the connection between the gearbox body and the outer tube, which will affect the accuracy of the actuator.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a solar thermal electric actuator with a supporting transmission structure, including a drive assembly, a transmission assembly, and an actuator assembly. The drive assembly drives the actuator assembly to work through the transmission assembly. The actuator assembly includes an outer tube, an inner tube, a lead screw, and a nut. The transmission assembly includes a gearbox and a transmission gear set mounted inside the gearbox. The outer tube is mounted on the gearbox. A supporting transmission structure is provided between the outer tube and the gearbox. A coupling is provided on the outside of the lead screw. The supporting transmission structure is connected to the coupling to support the coupling and ensure the smooth rotation of the lead screw. The outside of the supporting transmission structure is connected to the outer tube to fix the position of the supporting transmission structure on the outer tube.

[0005] Furthermore, the supporting transmission structure includes a planar ball bearing and a bearing housing. The bearing housing encloses the planar ball bearing to protect it and prevent external dust and impurities from entering the bearing and affecting its normal operation.

[0006] Furthermore, the gearbox body is equipped with a mounting base for fixing the bearing housing. The bearing housing includes a connecting seat and a base. The base is located inside the mounting base and is fastened to it with bolts, so that the bearing housing is fixed on the gearbox body as a whole, providing a stable mounting foundation for the flat ball bearing.

[0007] Furthermore, the bottom end of the connecting seat is provided with a boss, and the inner wall of the boss is provided with an internal thread for threaded connection with the base. The flat ball bearing is placed on the end face of the base, and the connecting seat is connected to the base and encloses the flat ball bearing inside it.

[0008] Furthermore, the bottom of the outer tube is provided with a positioning groove that matches the boss for positioning, and the inner wall of the outer tube is provided with an internal thread for threaded connection with the connecting seat. The bearing seat is fixed to the outer tube by positioning and threaded connection.

[0009] Furthermore, the inner tube is located inside the outer tube and slidably connected to it. One end of the inner tube is connected to a nut, which is screwed onto a lead screw. The transmission gear set drives one end of the lead screw to rotate, causing the nut to move along the axial direction of the lead screw, and causing the nut to drive the inner tube to move up and down inside the outer tube.

[0010] Furthermore, the gearbox housing is equipped with an oil-blocking structure that covers the transmission gear set to prevent grease applied to the surface of the transmission gear set from splashing or running off when the gears rotate at high speed.

[0011] Furthermore, an end cap is fitted to the end of the outer tube away from the transmission gear set, and a through hole is provided in the center of the end cap. One end of the inner tube passes through the through hole and is slidably connected to the end cap. A protective structure is provided between the outer tube and the end cap to improve the sealing, waterproofing and stability between the outer tube and the end cap.

[0012] Furthermore, the outer tube is provided with at least one oil injection hole, and the inner tube is provided with an oil injection component. The oil injection component is interconnected with the inner cavity of the inner tube. After moving the inner tube to precisely align the oil injection hole and the oil injection component in the axial direction, grease is injected, allowing the grease to flow into the interior of the inner tube through the oil injection component.

[0013] Furthermore, the drive assembly includes a mounting box and a drive component installed inside the mounting box. The gearbox body is provided with positioning posts that connect to the mounting box, and a waterproof gasket is provided between the mounting box and the gearbox body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting a support transmission structure between the outer tube and the gearbox, the interior of the support transmission structure is rotatably connected to the coupling to support the coupling and ensure the smooth rotation of the lead screw. The exterior of the support transmission structure is connected to the outer tube to fix the position of the support transmission structure on the outer tube. In addition, compared with traditional electric actuators, the flat ball bearing is first placed on the end face of the base, the connecting seat is connected to the base and the flat ball bearing is wrapped inside it, and then the bearing seat is fixed to the outer tube by positioning and threaded connection. This removes the flat ball bearing from the internal space of the gearbox, reducing the volume and weight of the gearbox and thus reducing the overall cost. At the same time, it eliminates the gap problem that may be caused by traditional bolt connection and avoids the decrease in accuracy and reliability caused by bolt loosening. It fundamentally improves the transmission accuracy of the actuator and significantly enhances the performance and reliability of the entire mechanical system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 for Figure 2 Enlarged view of the structure of section A;

[0019] Figure 4 A schematic diagram of the structure where the outer tube and end cap are separated.

[0020] Figure 5 for Figure 2 Enlarged view of the structure of section B;

[0021] Figure 6 This is a schematic diagram of the assembly of the transmission gear set and the oil baffle structure into one unit;

[0022] Figure 7 This is a schematic diagram showing the separation of the transmission gear set and the oil baffle structure.

[0023] Figure 8 An exploded view of the internal structure of the gearbox.

[0024] Figure 9 This is an isometric view of the oil baffle structure from a top angle.

[0025] Figure 10 This is an isometric view of the oil baffle structure from a bottom angle.

[0026] Figure 11 for Figure 2 Enlarged view of the structure of section C;

[0027] Figure 12An exploded view of the structure supporting the transmission mechanism.

[0028] Numbering on the map:

[0029] 100. Outer tube; 101. Lead screw; 102. Inner tube; 103. Nut; 104. Dustproof ring; 105. End cap; 106. Support ring; 107. Waterproof gasket; 108. Sealing ring; 109. Oil seal ring; 110. Positioning protrusion; 111. Bearing sleeve; 112. Supporting protrusion; 113. Upper end; 114. Lower end; 115. Retaining ring; 116. Mounting groove; 117. Sealing bolt; 118. Oil injection hole; 119. Oil guide nozzle; 120. Oil guide groove; 121. Connecting seat; 122. Boss part; 123. Flat ball bearing; 124. Base; 125. Coupling; 126. Mounting seat;

[0030] 200. Driver component; 201. Driver element; 202. Mounting box;

[0031] 300. Gearbox housing; 301. Upper shell; 302. Lower shell; 303. Transmission gear set; 304. Sealing gasket; 305. Oil baffle structure; 306. Second lip; 307. Connecting protrusion; 308. First lip; 309. Positioning pin; 310. Waterproof gasket; 311. Positioning block; 312. Sealing groove; 313. Oil baffle; 314. Side baffle; 315. Hollow groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1-4As shown, this utility model provides a solar thermal electric actuator with a supporting transmission structure, including a drive assembly 200, a transmission assembly, and an actuator assembly. The drive assembly 200 drives the actuator assembly to work through the transmission assembly. The actuator assembly includes an outer tube 100, an inner tube 102, a lead screw 101, and a nut 103. The outer tube 100 is mounted on a gearbox 300. A supporting transmission structure is provided between the outer tube 100 and the gearbox 300. A coupling 125 is sleeved on the outer side of the lead screw 101. The drive component 201 drives the transmission gear set 303 to rotate. The transmission gear set 303 drives the lead screw 101 to rotate through the coupling 125. The inside of the supporting transmission structure is rotatably connected to the coupling 125 to support the coupling 125 and ensure the smooth rotation of the lead screw 101. The outside of the supporting transmission structure is connected to the outer tube 100 to fix the position of the supporting transmission structure on the outer tube 100.

[0034] The supporting transmission structure includes a flat ball bearing 123 and a bearing housing. The bearing housing encloses the flat ball bearing 123 to protect it and prevent external dust and impurities from entering the bearing and affecting its normal operation.

[0035] The gearbox 300 is equipped with a mounting base 126 for fixing the bearing housing. The bearing housing includes a connecting base 121 and a base 124. The base 124 is located inside the mounting base 126 and is fastened to it with bolts, so that the bearing housing is fixed on the gearbox 300 as a whole, providing a stable mounting base for the flat ball bearing 123. The bottom end of the connecting base 121 is provided with a boss 122, and the inner wall of the boss 122 is provided with internal threads for threaded connection with the base 124. The bearing 123 is placed on the end face of the base 124. The connecting seat 121 is connected to the base 124 and encloses the flat ball bearing 123 inside it. The bottom of the outer tube 100 is provided with a positioning groove that cooperates with the boss 122 for positioning. The inner wall of the outer tube 100 is provided with an internal thread for threaded connection with the connecting seat 121. The bearing seat is fixed on the outer tube 100 by positioning and threaded connection, which further ensures the stable position of the support transmission structure, thereby further ensuring the smoothness of the rotation of the lead screw 101.

[0036] like Figure 5 As shown, the outer tube 100 is provided with at least one oil injection hole 118, and each oil injection hole 118 is equipped with a sealing bolt 117 threadedly connected to it. The sealing bolt 117 and the oil injection hole 118 are tightly connected by threads to effectively seal the oil injection hole 118. The inner tube 102 is provided with an oil injection component, which is in communication with the inner cavity of the inner tube 102. After moving the inner tube 102 to precisely align the oil injection hole 118 with the oil injection component in the axial direction, grease is injected, so that the grease flows into the interior of the inner tube 102 through the oil injection component.

[0037] The oil injection component includes an oil guide nozzle 119 fixedly installed on the side wall of the inner tube 102. The oil guide nozzle 119 is provided with an oil guide groove 120 that communicates with the inner cavity of the inner tube 102. The design of the oil guide groove 120 can ensure that the grease flows smoothly into the inner cavity of the inner tube 102, so that the grease can adhere more effectively to the surface of the screw and improve the oil injection efficiency.

[0038] like Figure 6-10 As shown, the transmission assembly includes a gearbox 300 and a transmission gear set 303 installed inside the gearbox 300. The gearbox 300 is equipped with an oil-blocking structure 305 that covers the transmission gear set 303 to prevent grease applied to the surface of the transmission gear set 303 from splashing or flowing away when the gears rotate at high speed.

[0039] The gearbox 300 includes an upper shell 301 and a lower shell 302. The upper shell 301 and the lower shell 302 are closed to form a receiving cavity for accommodating a transmission gear set 303. A sealing gasket 304 is installed between the upper shell 301 and the lower shell 302. A first lip 308 is provided around the lower end of the upper shell 301 near its outer periphery. A positioning block 311 is provided around the lower end of the upper shell 301 near its inner periphery. There is a gap between the first lip 308 and the positioning block 311 to form a sealing groove 312. The sealing gasket 304 is located inside the sealing groove 312. A second lip 306 is provided around the upper end of the lower shell 302 near its outer periphery. When the upper shell 301 and the lower shell 302 are closed, the first lip 308 and the second lip 306 contact each other to achieve sealing and waterproofing.

[0040] The oil-blocking structure 305 includes an oil-blocking plate 313 and a side baffle 314. The side baffle 314 is arranged around the side of the transmission gear set 303 to prevent grease from leaking out from the side. The oil-blocking plate 313 is located above the side baffle 314 and is positioned above the transmission gear set 303. Furthermore, the shape and size of the oil-blocking plate 313 match the shape of the receiving cavity, and the oil-blocking plate 313 is provided with a connecting protrusion 307 that connects to the upper shell 301 to fix the oil-blocking structure 305 to the gearbox body 30. In addition, the oil baffle 313 has a slot 315, which allows the drive assembly 200 and the push rod assembly to pass through the slot 315 and connect with the transmission gear set 303. The drive assembly 200 includes a mounting box 202 and a drive component 201 installed inside the mounting box 202. The drive component 201 is a conventional drive motor. The gearbox 300 is provided with positioning posts 309 that are connected to the mounting box 202. A waterproof gasket 310 is provided between the mounting box 202 and the gearbox 300.

[0041] The outer tube 100 is a hollow tubular structure with openings at both ends. An end cap 105 is fitted to the end of the outer tube 100 away from the transmission gear set 303. A through hole is provided in the center of the end cap 105. The inner tube 102 is located inside the outer tube 100 and is slidably connected to it. One end of the inner tube 102 passes through the through hole and is slidably connected to the end cap 105. One end of the inner tube 102 is connected to a nut 103. The nut 103 is screwed onto the lead screw 101. The transmission gear set 303 drives one end of the lead screw 101 to rotate, causing the nut 103 to move along the axial direction of the lead screw 101, and causing the nut 103 to drive the inner tube 102 to move up and down inside the outer tube 100.

[0042] like Figure 11-12 As shown, a protective structure is provided between the outer tube 100 and the end cap 105 to improve the sealing, waterproofing and stability between the outer tube 100 and the end cap 105. The protective structure includes a dustproof ring 104, a support ring 106, an oil seal ring 109 and a bearing sleeve 111. The dustproof ring 104 is a lip dustproof ring 104, the support ring 106 is a polytetrafluoroethylene support ring 106, the oil seal ring 109 is a Y-type oil seal ring 109, and the bearing sleeve 111 is a self-lubricating composite copper sleeve. The self-lubricating properties of the self-lubricating composite copper sleeve mean that no additional lubricant needs to be added during operation, reducing maintenance costs. At the same time, the composite copper material has good wear resistance and thermal conductivity, which can ensure the efficient operation of the bearing sleeve 111.

[0043] The inner wall of the end cap 105 is provided with a first mounting groove 116, a second mounting groove 116 and a third mounting groove 116 from top to bottom. The dustproof ring 104 is fitted inside the first mounting groove 116 and fits tightly against the outer wall of the inner tube 102 to prevent external dust from entering the interior of the outer tube 100. The support ring 106 is fitted inside the second mounting groove 116 and contacts the outer wall of the inner tube 102 to support and position the inner tube 102 and ensure the stable operation of the inner tube 102 inside the outer tube 100. The oil seal ring 109 is fitted inside the third mounting groove 116 and fits tightly against the outer wall of the inner tube 102 to prevent lubricating oil leakage. In addition, the oil seal ring 109 can further prevent external contaminants from entering the interior of the outer tube 100.

[0044] It also includes a retaining ring 115 for mounting the bearing sleeve 111. The top end of the retaining ring 115 is provided with a positioning protrusion 110 extending outward relative to the center of the retaining ring 115, and the bottom end of the retaining ring 115 is provided with a supporting protrusion 112 extending inward relative to the center of the retaining ring 115. One end of the outer tube 100 is provided with a mounting groove 116 that matches the diameter of the positioning protrusion 110. The retaining ring 115 is placed inside the outer tube 100 and fixed in the mounting groove 116 of the outer tube 100 by the positioning protrusion 110. The bearing sleeve 111 is placed inside the retaining ring 115 and fixed inside the retaining ring 115 by the supporting protrusion 112, so that the inner wall of the bearing sleeve 111 contacts the outer wall of the inner tube 102, and the bearing sleeve 111 can normally perform its supporting and friction-reducing functions.

[0045] The end cap 105 includes an upper end 113 and a lower end 114. The bottom of the upper end 113 has an inner groove, and a waterproof gasket 107 is fitted into the inner groove. When the end cap 105 is installed with the outer tube 100, the end cap 105 is connected to the outer tube 100, so that the waterproof gasket 107 is sandwiched between the upper end 113 and the outer tube 100, forming an effective waterproof seal.

[0046] Meanwhile, the lower end 114 of the end cap 105 is inserted into the interior of the outer tube 100. The outer wall of the lower end 114 is provided with a fourth mounting groove 116. A sealing ring 108 is installed in the fourth mounting groove 116. The sealing ring 108 contacts the inner wall of the outer tube 100, which further enhances the sealing performance between the end cap 105 and the outer tube 100 and prevents external moisture and impurities from entering the equipment from the connection between the end cap 105 and the outer tube 100.

[0047] Compared to traditional technologies:

[0048] 1. By setting a support transmission structure between the outer tube 100 and the gearbox 300, the inside of the support transmission structure is rotatably connected to the coupling 125 to support the coupling 125 and ensure the smooth rotation of the lead screw 101. The outside of the support transmission structure is connected to the outer tube 100 to fix the position of the support transmission structure on the outer tube 100. In addition, compared with the traditional electric push rod, the flat ball bearing 123 is first placed on the end face of the base 124. The connecting seat 121 is connected to the base 124 and encloses the flat ball bearing 123 inside it. Then, the bearing seat is fixed to the outer tube 100 by positioning and threaded connection. This realizes the removal of the flat ball bearing 123 from the internal space of the gearbox 300, reducing the volume and weight of the gearbox 300, thereby reducing the overall cost. At the same time, it eliminates the gap problem that may be caused by traditional bolt connection, and avoids the decrease in accuracy and reliability caused by bolt loosening. It improves the transmission accuracy of the push rod from the root and significantly enhances the performance and reliability of the entire mechanical system.

[0049] 2. By setting an oil injection hole 118 in the outer tube 100 and an oil injection component in the inner tube 102, the oil injection component is an oil guide nozzle 119 fixedly installed on the side wall of the inner tube 102. The oil guide nozzle 119 is provided with an oil guide groove 120 that communicates with the inner cavity of the inner tube 102. Each oil injection hole 118 is equipped with a sealing bolt 117 that is threadedly connected to it. The sealing bolt 117 is tightly connected to the oil injection hole 118 through the thread to effectively seal the oil injection hole 118. After moving the inner tube 102 to make the oil injection hole 118 and the oil guide nozzle 119 precisely aligned in the axial direction, grease is injected, so that the grease flows into the interior of the inner tube 102 through the oil guide groove 120. The design of the oil guide groove 120 can ensure that the grease flows smoothly into the inner cavity of the inner tube 102, so that the grease adheres more effectively to the surface of the screw and improves the oil injection efficiency.

[0050] 3. By installing an oil-blocking structure 305 inside the gearbox 300 to cover the transmission gear set 303, the grease applied to the surface of the transmission gear set 303 is prevented from splashing or flowing away when the gears rotate at high speed. The side baffle 314 is set around the side of the transmission gear set 303 to prevent the grease from flowing away from the side. Through this design, the grease is firmly retained on the surface of the gear when the gear rotates at high speed, and the gear can always be fully lubricated, thereby ensuring its long-term stable operation, significantly extending its service life, and this structure also greatly reduces the risk of gear wear and damage caused by poor lubrication.

[0051] 4. By setting a protective structure between the outer tube 100 and the end cap 105, the sealing, waterproofing, and stability between the outer tube 100 and the end cap 105 are improved. The dustproof ring 104 is fitted inside the first mounting groove 116 and fits tightly against the outer wall of the inner tube 102 to prevent external dust from entering the interior of the outer tube 100. The support ring 106 is fitted inside the second mounting groove 116 and contacts the outer wall of the inner tube 102 to support and position the inner tube 102, ensuring the stable operation of the inner tube 102 within the outer tube 100. The oil seal ring 109 is fitted inside the third mounting groove 116 and fits tightly against the outer wall of the inner tube 102 to prevent lubricating oil leakage. The inner wall of the bearing sleeve 111 contacts the outer wall of the inner tube 102, enabling the bearing sleeve 111 to properly perform its supporting and friction-reducing functions.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A photothermal solar electric push rod with support transmission structure, comprising a drive assembly, a transmission assembly and a push rod assembly, the drive assembly drives the push rod assembly to work through the transmission assembly, the push rod assembly comprises an outer tube, an inner tube, a lead screw and a nut, the transmission assembly comprises a gear box and a transmission gear set fitted inside the gear box, the outer tube is fitted on the gear box, characterized in that, The support transmission structure is connected with the coupling on the outer side of the screw rod to support the coupling and ensure the stability of the rotation of the screw rod, and the outer part of the support transmission structure is connected with the outer tube to fix the position of the support transmission structure on the outer tube.

2. A photovoltaic solar electric motorized push rod with support transmission structure according to claim 1, characterized in that, The support transmission structure comprises a planar ball bearing and a bearing seat, and the bearing seat wraps the planar ball bearing to protect the planar ball bearing and prevent dust and impurities from entering the bearing to affect the normal operation of the bearing.

3. A photovoltaic solar electric motorized push rod with support transmission structure according to claim 2, characterized in that, The gear box body is provided with a mounting seat for fixing the bearing seat, and the bearing seat comprises a connecting seat and a base, the base is arranged in the inner part of the mounting seat and is fixedly connected with the mounting seat by bolts, so that the bearing seat is fixed on the gear box body as a whole to provide a stable mounting base for the planar ball bearing.

4. A photovoltaic solar electric motorized push rod with support transmission structure according to claim 3, characterized in that, The bottom end of the connecting seat is provided with a boss part, and the inner wall of the boss part is provided with internal threads for thread connection with the base, the planar ball bearing is arranged on the end face of the base, and the connecting seat is connected with the base to wrap the planar ball bearing in the inner part of the connecting seat.

5. A photovoltaic solar electric motorized push rod with support transmission structure according to claim 4, characterized in that, The bottom part of the outer tube is provided with a positioning groove matched with the boss part, and the inner wall of the outer tube is provided with internal threads for thread connection with the connecting seat, so that the bearing seat is fixed on the outer tube by positioning and thread connection.

6. A photovoltaic solar electric motorized push pole having a support drive structure according to claim 1, wherein, The inner tube is arranged in the inner part of the outer tube and is in sliding connection with the outer tube, one end of the inner tube is connected with a nut, the nut is screwed on the screw rod, the transmission gear set drives one end of the screw rod to rotate, so that the nut moves along the axial direction of the screw rod, and the nut drives the inner tube to make lifting movement in the inner part of the outer tube.

7. A photovoltaic solar electric motorized push pole having a support drive structure according to claim 1, wherein, The inner part of the gear box body is provided with an oil blocking structure for covering the transmission gear set to prevent the oil applied on the surface of the transmission gear set from splashing or flowing away when the gear rotates at high speed.

8. A photovoltaic solar electric motorized push pole having a support drive structure according to claim 1, wherein, The end of the outer tube away from the transmission gear set is provided with an end cover, a through hole is formed in the center of the end cover, one end of the inner tube penetrates through the through hole and is in sliding connection with the end cover, and a protection structure is arranged between the outer tube and the end cover to improve the sealing and waterproof performance and stability between the outer tube and the end cover.

9. A photovoltaic solar electric motorized push pole having a support drive structure according to claim 1, wherein, The outer tube is provided with at least one oil injection hole, the inner tube is provided with an oil injection part, the oil injection part is in communication with the inner cavity of the inner tube, and the oil injection hole and the oil injection part are accurately aligned in the axial direction after the inner tube is moved, and then oil is injected, so that the oil flows into the inner part of the inner tube through the oil injection part.

10. The photovoltaic solar electric motorized push rod with support transmission structure according to claim 1, wherein, The driving assembly comprises a mounting box and a driving part arranged in the inner part of the mounting box, the gear box body is provided with positioning columns for connecting the mounting boxes, and a waterproof gasket is arranged between the mounting box and the gear box body.

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