A fiberglass surfboard surface polishing device
By incorporating hexagonal grooves into the handle of the fiberglass surfboard polishing device, the problem of requiring additional tools for polishing wheel replacement is solved, enabling convenient tool-free replacement and improving operational convenience and emergency response capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHAOQING BANGJISHENG TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-30
AI Technical Summary
Existing fiberglass surfboard polishing devices require additional tools to be carried when changing polishing wheels, and cannot be replaced in time if the tools are lost or not carried in an emergency, affecting usability.
A surface polishing device for fiberglass surfboards was designed. By setting a hexagonal groove on the handle, the polishing wheel can be changed by turning the nut without additional tools by using the hexagonal groove to fit on the outer surface of the nut and rotating the handle.
The process of changing polishing wheels has been simplified, reducing the burden on operators and ensuring that polishing wheels can be changed in a timely manner in emergency situations, thus improving ease of use.
Smart Images

Figure CN224425175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiberglass surfboard processing technology, and more specifically, to a fiberglass surfboard surface polishing device. Background Technology
[0002] Polishing the surface of fiberglass surfboards is a crucial process that directly affects the surfboard's appearance and performance. Polishing devices typically include nuts to secure the polishing wheel; however, changing the wheel requires special tools to tighten these nuts, meaning operators need to carry an extra set of tools, such as wrenches, increasing their workload. Furthermore, in emergency situations, if these tools are lost or not carried, timely wheel replacement becomes impossible, impacting usability. Therefore, we have developed an improvement: a fiberglass surfboard surface polishing device. Utility Model Content
[0003] This utility model provides a surface polishing device for fiberglass surfboards, including a housing structure and a third protective shell connected to the bottom of the housing structure. The third protective shell is rotatably connected to a rotating shaft via a bearing. A driving component is provided between the rotating shaft and the housing structure. The bottom end of the rotating shaft extends through the bottom of the third protective shell and is connected to an insert rod. Side grooves are provided on both sides of the bottom end of the insert rod. A first threaded rod is fixedly connected to the bottom end of the insert rod. A wheel seat is provided on the outer surface of the insert rod. A limiting groove is provided in the middle of the wheel seat to engage with the insert rod and the side grooves. A polishing wheel is fixedly connected to the bottom end of the wheel seat. A nut is threadedly connected to the outer surface of the first threaded rod.
[0004] The housing structure is provided with a first threaded groove, and the first threaded groove is threadedly connected to a second threaded rod. The end of the second threaded rod away from the housing structure is connected to a handle. The end of the handle away from the second threaded rod is provided with a hexagonal groove, and the size of the hexagonal groove is adapted to the size of the nut.
[0005] As a preferred technical solution of this application, a groove is provided at the center of the bottom of the polishing wheel, the nut is located in the groove, and the bottom surface of the first threaded rod and the nut is higher than the bottom surface of the polishing wheel.
[0006] As a preferred technical solution of this application, the shell structure includes a second protective shell connected to a third protective shell, a first protective shell connected to one side of the second protective shell, and a handle connected to the side of the first protective shell away from the second protective shell.
[0007] As a preferred technical solution of this application, there are two first threaded grooves, which are respectively disposed on both sides of the second protective shell, and the second threaded rod is threadedly connected to one of the first threaded grooves.
[0008] As a preferred technical solution of this application, the driving component includes a motor disposed in a first protective housing, the output of the motor extending into a second protective housing and connected to a first bevel gear, the first bevel gear meshing with a second bevel gear, and the second bevel gear being disposed on the outer surface of the rotating shaft.
[0009] As a preferred technical solution of this application, a switch is provided at the bottom of the handle, the switch is connected to a motor, and the switch is connected to a power cord, which passes through the handle and extends to the outside of the handle.
[0010] As a preferred technical solution of this application, the second bevel gear is provided with a plurality of positioning grooves, the second protective shell is provided with a receiving groove, a T-shaped rod is inserted into the receiving groove, the bottom end of the T-shaped rod extends into the second protective shell, and the position of the T-shaped rod corresponds to the position of the positioning groove, a spring located in the receiving groove is sleeved on the outer surface of the T-shaped rod, the two ends of the spring are respectively connected to the T-shaped rod and the receiving groove, and a retaining ring located in the second protective shell is fixedly sleeved on the outer surface of the T-shaped rod.
[0011] As a preferred technical solution of this application, the third protective shell is provided with a protective component, which is used to protect the polishing wheel.
[0012] As a preferred technical solution of this application, the protective component includes a first protective cover fixedly sleeved on the outer surface of the third protective shell, an external threaded ring connected to the bottom of the first protective cover, an internal threaded cover threadedly connected to the outer surface of the external threaded ring, and a polishing wheel located between the internal threaded cover and the first protective cover.
[0013] As a preferred technical solution of this application, the bottom of the internal threaded cover is provided with a through hole, and a hand-tightening bolt is threadedly connected to the through hole. A second threaded groove is provided on the inner wall of the hexagonal groove, and the size of the second threaded groove is adapted to the size of the hand-tightening bolt.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In the scheme of this application:
[0016] This application provides a hexagonal groove on the handle. When the polishing wheel needs to be replaced, the operator only needs to separate the second threaded rod from the first threaded groove, then put the hexagonal groove on the outer surface of the nut and turn the handle. The handle turns the nut through the hexagonal groove, thus eliminating the need to carry any other tools and facilitating emergency use. Attached Figure Description
[0017] Figure 1 A schematic diagram of the fiberglass surfboard surface polishing device provided in this application;
[0018] Figure 2Exploded view of the fiberglass surfboard surface polishing device provided in this application;
[0019] Figure 3 A partial cross-sectional structural schematic diagram of the second protective shell provided in this application;
[0020] Figure 4 A schematic diagram of the structure of the insertion rod provided in this application;
[0021] Figure 5 A schematic diagram of the structure of the fiberglass surfboard surface polishing device provided in this application during use.
[0022] The image shows:
[0023] 1. First protective shell; 101. Handle; 102. Second protective shell; 103. Third protective shell; 104. First threaded groove; 105. First bevel gear; 106. Shaft; 107. Second bevel gear; 108. Insert rod; 109. First threaded rod; 110. Polishing wheel; 111. Wheel seat; 112. Limiting groove; 113. Nut; 114. Groove; 115. T-shaped rod; 116. Spring; 117. Positioning groove; 118. Side groove; 119. Switch; 120. Retaining ring; 2. First protective cover; 201. External threaded ring; 202. Internal threaded cover; 203. Through hole; 204. Hand-tightening bolt; 3. Second threaded rod; 301. Handle; 302. Hexagonal groove; 303. Second threaded groove. Detailed Implementation
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] For an example, please refer to... Figures 1-4A fiberglass surfboard surface polishing device includes a housing structure and a third protective shell 103 connected to the bottom of the housing structure. The third protective shell 103 is rotatably connected to a rotating shaft 106 via bearings. A driving component is provided between the rotating shaft 106 and the housing structure. The bottom end of the rotating shaft 106 extends through the bottom of the third protective shell 103 and is connected to an insert rod 108. Side grooves 118 are provided on both sides of the bottom end of the insert rod 108. A first threaded rod 109 is fixedly connected to the bottom end of the insert rod 108. A wheel seat 111 is provided on the outer surface of the insert rod 108. The middle part is provided with a limiting groove 112 that is inserted into the insertion rod 108 and the side groove 118. The bottom end of the wheel seat 111 is fixedly connected to a polishing wheel 110. The outer surface of the first threaded rod 109 is threaded with a nut 113. The side groove 118 is provided so that the bottom end of the insertion rod 108 is not circular. After the side groove 118 is opened at the bottom end of the insertion rod 108, its shape is adapted to the shape of the limiting groove 112, so that the bottom end of the insertion rod 108 can form a limit after being inserted into the limiting groove 112, so that the wheel seat 111 and the insertion rod 108 will not rotate relative to each other.
[0028] The housing structure is provided with a first threaded groove 104, and the first threaded groove 104 is threadedly connected to a second threaded rod 3. The end of the second threaded rod 3 away from the housing structure is connected to a handle 301. The end of the handle 301 away from the second threaded rod 3 is provided with a hexagonal groove 302, and the size of the hexagonal groove 302 is adapted to the size of the nut 113. When it is necessary to replace the polishing wheel 110, the operator only needs to separate the second threaded rod 3 from the first threaded groove 104, then put the hexagonal groove 302 on the outer surface of the nut 113 and then rotate the handle 301. The handle 301 tightens the nut 113 through the hexagonal groove 302, thus eliminating the need to carry other tools and facilitating emergency use.
[0029] Furthermore, a groove 114 is provided at the center of the bottom of the polishing wheel 110, and the nut 113 is located in the groove 114. The bottom surfaces of the first threaded rod 109 and the nut 113 are higher than the bottom surface of the polishing wheel 110, so as to prevent the first threaded rod 109 and the nut 113 from contacting the fiberglass surfboard being polished during polishing.
[0030] Furthermore, the housing structure includes a second protective shell 102 connected to the third protective shell 103, a first protective shell 1 connected to one side of the second protective shell 102, and a handle 101 connected to the side of the first protective shell 1 away from the second protective shell 102.
[0031] Furthermore, there are two first threaded grooves 104, which are respectively provided on both sides of the second protective shell 102, and the second threaded rod 3 is threadedly connected to one of the first threaded grooves 104. The threaded connection allows the second threaded rod 3 and the first threaded groove 104 to be detached.
[0032] Furthermore, the driving component includes a motor disposed within the first protective housing 1, the output of the motor extending into the second protective housing 102 and connected to a first bevel gear 105, the first bevel gear 105 meshing with a second bevel gear 107, the second bevel gear 107 being disposed on the outer surface of the rotating shaft 106, the motor being able to drive the rotating shaft 106 to rotate via the first bevel gear 105 and the second bevel gear 107, thereby being able to drive the wheel seat 111 and the polishing wheel 110 to rotate via the insert rod 108.
[0033] Furthermore, a switch 119 is provided at the bottom of the handle 101. The switch 119 is connected to the motor and a power cord is connected to the switch 119. The power cord passes through the handle 101 and extends to the outside of the handle 101. The power cord is used to connect a plug so as to connect to the power supply through the plug.
[0034] Furthermore, the second bevel gear 107 has several positioning slots 117, and the second protective shell 102 has a receiving slot. A T-shaped rod 115 is inserted into the receiving slot, with its bottom end extending into the second protective shell 102. The position of the T-shaped rod 115 corresponds to the position of the positioning slot 117. A spring 116 is fitted onto the outer surface of the T-shaped rod 115, located within the receiving slot. The two ends of the spring 116 are connected to the T-shaped rod 115 and the receiving slot, respectively. A retaining ring 120 is fixedly fitted onto the outer surface of the T-shaped rod 115, located within the second protective shell 102. The spring 116 is in a compressed state, and its elasticity is sufficient for use. During the process, the vibration force is overcome, so that the T-shaped rod 115 remains in its original position when the user does not press it. When the nut 113 is turned, the T-shaped rod 115 is pressed down, and then the polishing wheel 110 is rotated to drive the insert rod 108 and the rotating shaft 106 to rotate. During the rotation of the rotating shaft 106, the second bevel gear 107 is driven to rotate. When the T-shaped rod 115 is aligned with the positioning groove 117, the T-shaped rod 115 continues to descend and is inserted into the corresponding positioning groove 117, thereby fixing the second bevel gear 107, thereby fixing the position of the rotating shaft 106 and the insert rod 108, and further fixing the position of the first threaded rod 109, so as to facilitate the rotation of the nut 113.
[0035] Furthermore, the third protective housing 103 is provided with a protective component to protect the polishing wheel 110, so as to reduce the possibility of damage or contamination to the polishing wheel 110 during transportation when it is not in use.
[0036] Furthermore, the protective component includes a first protective cover 2 fixedly sleeved on the outer surface of the third protective shell 103. The bottom of the first protective cover 2 is connected to an external threaded ring 201, and the outer surface of the external threaded ring 201 is threadedly connected to an internal threaded cover 202. The polishing wheel 110 is located between the internal threaded cover 202 and the first protective cover 2. The external threaded ring 201 and the internal threaded cover 202 cooperate with each other to protect the polishing wheel 110.
[0037] Furthermore, the bottom of the internal threaded cover 202 is provided with a through hole 203, and a hand-tightening bolt 204 is threadedly connected to the through hole 203. A second threaded groove 303 is provided on the inner wall of the hexagonal groove 302, and the size of the second threaded groove 303 is adapted to the size of the hand-tightening bolt 204. The through hole 203 can be blocked by the hand-tightening bolt 204.
[0038] The first protective shell 1 is connected to the handle 101 and the second protective shell 102 by bolts, and the third protective shell 103 is connected to the second protective shell 102 by bolts. The external threaded ring 201 is welded to the third protective shell 103. The handle 301 is welded to the second threaded rod 3. The insert rod 108 is welded to the first threaded rod 109 and the rotating shaft 106.
[0039] When using, refer to Figure 1 Rotate the handle 301 to separate the second threaded rod 3 from the first threaded groove 104. Then rotate the inner threaded cover 202 to separate it from the outer threaded ring 201. Next, unscrew the hand-tightening bolt 204 and connect it to the second threaded groove 303. Pass the second threaded rod 3 through the through hole 203 and then connect it to the first threaded groove 104. Figure 5 As shown, hold the handle 101 and grip 301 with both hands respectively, press the switch 119 to start the motor, the motor drives the rotating shaft 106 to rotate through the first bevel gear 105 and the second bevel gear 107, the rotating shaft 106 drives the polishing wheel 110 to rotate through the insert rod 108 and the wheel seat 111, so as to polish the surface of the fiberglass surfboard through the polishing wheel 110.
[0040] After use, rotate the handle 301 to separate the second threaded rod 3 from the first threaded groove 104, remove the inner threaded cover 202 and connect it to the outer threaded ring 201, then unscrew the hand-tightening bolt 204 from the second threaded groove 303, and then connect the hand-tightening bolt 204 to the through hole 203. Figure 1 As shown.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. A surface polishing device for fiberglass surfboards, characterized in that, The device includes a housing structure and a third protective shell (103) connected to the bottom of the housing structure. The third protective shell (103) is rotatably connected to a rotating shaft (106) via a bearing. A driving component is provided between the rotating shaft (106) and the housing structure. The bottom end of the rotating shaft (106) extends through the bottom of the third protective shell (103) and is connected to a plug rod (108). Side grooves (118) are provided on both sides of the bottom end of the plug rod (108). A first threaded rod (109) is fixedly connected to the bottom end of the plug rod (108). A wheel seat (111) is provided on the outer surface of the plug rod (108). A limiting groove (112) is provided in the middle of the wheel seat (111) to engage with the plug rod (108) and the side grooves (118). A polishing wheel (110) is fixedly connected to the bottom end of the wheel seat (111). A nut (113) is threadedly connected to the outer surface of the first threaded rod (109). The shell structure is provided with a first threaded groove (104), and the first threaded groove (104) is threadedly connected to a second threaded rod (3). The end of the second threaded rod (3) away from the shell structure is connected to a handle (301). The end of the handle (301) away from the second threaded rod (3) is provided with a hexagonal groove (302), and the size of the hexagonal groove (302) is adapted to the size of the nut (113).
2. The fiberglass surfboard surface polishing apparatus of claim 1, wherein, A groove (114) is provided at the center of the bottom of the polishing wheel (110), the nut (113) is located in the groove (114), and the bottom surface of the first threaded rod (109) and the nut (113) is higher than the bottom surface of the polishing wheel (110).
3. The fiberglass surfboard surface polishing apparatus of claim 1, wherein, The housing structure includes a second protective shell (102) connected to a third protective shell (103), a first protective shell (1) connected to one side of the second protective shell (102), and a handle (101) connected to the side of the first protective shell (1) away from the second protective shell (102).
4. The fiberglass surfboard surface polishing apparatus of claim 3, wherein, There are two first threaded grooves (104), and the two first threaded grooves (104) are respectively disposed on both sides of the second protective shell (102), and the second threaded rod (3) is threadedly connected to one of the first threaded grooves (104).
5. The fiberglass surfboard surface polishing apparatus of claim 3, wherein, The drive unit includes a motor disposed in the first protective housing (1), the output of the motor extends into the second protective housing (102) and is connected to a first bevel gear (105), the first bevel gear (105) is meshed with a second bevel gear (107), and the second bevel gear (107) is disposed on the outer surface of the rotating shaft (106).
6. The fiberglass surfboard surface polishing apparatus of claim 5, wherein, A switch (119) is provided at the bottom of the handle (101). The switch (119) is connected to a motor and a power cord is connected to the switch (119). The power cord passes through the handle (101) and extends to the outside of the handle (101).
7. The fiberglass surfboard surface polishing apparatus of claim 6, wherein, The second bevel gear (107) has several positioning grooves (117), and the second protective shell (102) has a receiving groove. A T-shaped rod (115) is inserted into the receiving groove. The bottom end of the T-shaped rod (115) extends into the second protective shell (102), and the position of the T-shaped rod (115) corresponds to the position of the positioning groove (117). A spring (116) located in the receiving groove is sleeved on the outer surface of the T-shaped rod (115). The two ends of the spring (116) are connected to the T-shaped rod (115) and the receiving groove, respectively. A retaining ring (120) located in the second protective shell (102) is fixedly sleeved on the outer surface of the T-shaped rod (115).
8. The fiberglass surfboard surface polishing apparatus of claim 1, wherein, The third protective shell (103) is provided with a protective component, which is used to protect the polishing wheel (110).
9. The fiberglass surfboard surface polishing apparatus of claim 8, wherein, The protective component includes a first protective cover (2) fixedly sleeved on the outer surface of the third protective shell (103). The bottom of the first protective cover (2) is connected to an external threaded ring (201). The outer surface of the external threaded ring (201) is threadedly connected to an internal threaded cover (202). A polishing wheel (110) is located between the internal threaded cover (202) and the first protective cover (2).
10. The fiberglass surfboard surface polishing apparatus of claim 9, wherein, The bottom of the internal threaded cap (202) is provided with a through hole (203), and a hand-tightening bolt (204) is threadedly connected to the through hole (203). A second threaded groove (303) is provided on the inner wall of the hexagonal groove (302), and the size of the second threaded groove (303) is adapted to the size of the hand-tightening bolt (204).