Grinding device for inner surface machining based on fitness equipment

Abstract

The invention provides a grinding device for inner surface machining based on fitness equipment, and relates to the technical field of fitness equipment machining. An annular inclined plate is arranged outside the fixed grab handle, and a spiral driving rod is fixedly connected to the interior of the fixed grab handle; the movable grab handle is connected with the driving sleeve, the driving sleeve is connected into the fixed grab handle in a penetrating mode, and one end of the driving sleeve is connected with the main connecting cylinder; the main connecting cylinder is connected to the outside of the spiral driving rod, and balls are connected to the inner side of the main connecting cylinder. According to the grinding device, the grinding block can synchronously rotate while sliding in the pipe, the effect of grinding all parts of the inner wall of the fitness pipe is achieved, the inner wall of the fitness pipe can be ground only by moving the movable grab handle in a reciprocating mode for three to five times, and the grinding efficiency of the inner wall of the fitness pipe is greatly improved. The pipe polishing device solves the problem that when a pipe polishing device is used, the polishing device usually needs to be manually driven to move and polish in a pipe, and the efficiency is low.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment processing, and in particular to a grinding device for processing the inner surface of fitness equipment. Background Art

[0002] Fitness is a sport that can enhance strength, flexibility, increase endurance, and improve the ability to coordinate and control various parts of the body. In order to facilitate fitness, fitness equipment is needed during the fitness process. Fitness equipment is generally made of metal pipes. During the processing of metal pipes, it is necessary to use grinding equipment to pre-treat the inner wall.

[0003] However, when using traditional pipe grinding devices, it is usually necessary to manually drive the grinding device to move and grind inside the pipe, which is relatively inefficient, and the grinding quality is greatly affected by the speed of hand movement. When manual personnel are eager to finish grinding the pipe, some parts of the inside of the pipe are easily missed, affecting the use effect of the pipe. Summary of the invention

[0004] In view of this, the present invention provides a grinding device for inner surface processing of fitness equipment, which can drive the main connecting tube to rotate under the guidance of the spiral groove on the outer side of the spiral driving rod when the main connecting tube is located inside the fitness tube, so that the grinding block contacts various parts of the inner wall of the fitness tube, thereby grinding various parts of the inner wall of the fitness tube. The inner wall grinding operation of the fitness tube can be achieved by reciprocating the movable handle three to five times, thereby greatly improving the efficiency of grinding the inner wall of the fitness tube.

[0005] The present invention provides a grinding device for inner surface processing of fitness equipment, which specifically includes: a fixed handle; an annular inclined plate is provided on the outside of the fixed handle, and a spiral drive rod is fixedly connected to the inside of the fixed handle; a movable handle, the movable handle is connected to a drive sleeve, and the drive sleeve is connected to the fixed handle through, and one end of the drive sleeve is connected to a main connecting tube; the main connecting tube is connected to the outside of the spiral drive rod, and a ball is connected to the inside of the main connecting tube, and the ball is connected to the spiral drive rod; a parallel connecting rod is connected to the outside of the main connecting tube, and the other end of the parallel connecting rod is connected to a movable assembly plate, and a grinding block is fixedly connected to the outside of the movable assembly plate by bolts; an adjusting cylinder, the adjusting cylinder is connected to the main connecting tube, and the main connecting tube is connected to a support connecting rod, and the other end of the support connecting rod is connected to the parallel connecting rod.

[0006] Optionally, eight parallel connecting rods are rotatably connected to the outer side of the main connecting tube in a circular shape, and the other ends of the parallel connecting rods are rotatably connected to the inner side of the movable assembly plate, and the movable assembly plate is connected to the main connecting tube through two parallel connecting rods.

[0007] Optionally, four guide sliding holes B are provided in a circumferential shape inside the main connecting tube, and four guide sliding rods are provided in a circumferential shape on one side of the adjusting tube, and the guide sliding rods are slidably connected to the guide sliding holes B.

[0008] Optionally, four supporting links are rotatably connected to the outer side of the adjusting cylinder in a circular shape, and the other end of the supporting link is rotatably connected to the parallel link.

[0009] Optionally, one end of the guide slide rod is connected to the ring plate, the elastic member is sleeved on the outside of the four guide slide rods, one end of the elastic member contacts the ring plate, and the other end of the elastic member contacts the outside of the main connecting tube.

[0010] Optionally, two guide sliding holes A are symmetrically opened inside the fixed handle, the driving sleeve is slidably connected in the guiding sliding hole A, and the inner side of the driving sleeve is in sliding contact with the outer side of the spiral driving rod.

[0011] Optionally, the drive sleeve is rotatably connected to the main connecting tube, and the inner side of the main connecting tube is in sliding contact with the outer side of the spiral drive rod.

[0012] Optionally, two spiral grooves are provided on the outer side of the spiral drive rod, and four assembly grooves are provided on the inner side of the main connecting tube. Balls are installed in the assembly grooves, and one end of the ball is connected to the spiral groove.

[0013] Beneficial Effects According to the grinding device for inner surface processing of fitness equipment according to various embodiments of the present invention, compared with the traditional pipe grinding device, when the main connecting tube is located inside the fitness tube and moves back and forth, the ball is guided by the spiral groove on the outer side of the spiral driving rod to drive the main connecting tube to rotate, so that the grinding block contacts various parts of the inner wall of the fitness tube, thereby grinding various parts of the inner wall of the fitness tube. The inner wall grinding operation of the fitness tube can be achieved by reciprocating the movable handle three to five times, thereby greatly improving the grinding efficiency of the inner wall of the fitness tube.

[0014] In addition, through the setting of the parallel connecting rod, when the main connecting tube is located inside the fitness tube, the parallel connecting rod drives the movable assembly plate to move outward, so that the four grinding blocks are always kept parallel to the main connecting tube, and the outer side of the grinding block is in horizontal contact with the inner wall of the fitness tube, thereby increasing the contact area between the grinding block and the inner wall of the fitness tube, and ensuring the grinding effect of the inner wall of the fitness tube; and in conjunction with the setting of the adjusting tube and the supporting connecting rod, the adjusting tube can be slid and adjusted according to the inner diameter specification of the fitness tube to be polished, and the supporting connecting rod connected to the adjusting tube drives the parallel connecting rod to rotate, thereby increasing the spacing between the four movable assembly plates, so that the grinding block on the outer side of the movable assembly plate is in contact with the inner wall of the fitness tube, better meeting the needs of grinding the inner walls of fitness tubes of different specifications, and having extremely high versatility.

[0015] In addition, by setting the elastic part, the elastic part is used to apply thrust to the adjustment tube, driving the four grinding blocks to move outward synchronously, so that the grinding blocks are closely fitted with the inner wall of the pipe under the influence of the thrust of the elastic part, thereby improving the grinding effect of the inner wall of the fitness pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture: Figure 1 It shows a schematic diagram of the shaft side structure in a combined state according to an embodiment of the present invention; Figure 2 It shows a schematic diagram of the shaft side structure in the expanded state according to an embodiment of the present invention; Figure 3 A schematic diagram of the connection structure between the fixed handle and the driving sleeve according to an embodiment of the present invention is shown; Figure 4 A schematic cross-sectional view of a fixed handle according to an embodiment of the present invention is shown; Figure 5 It shows a schematic structural diagram of the merging state of the movable assembly plates according to an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the movable assembly plate in the expanded state according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the main connecting tube shaft side structure according to an embodiment of the present invention is shown; Figure 8 A schematic cross-sectional view of the interior of a main connecting tube according to an embodiment of the present invention is shown; Fig. 9 A schematic diagram of the connection structure between the adjustment cylinder and the elastic member according to an embodiment of the present invention is shown; Fig.10 A schematic structural diagram of an elastic member, an elastic member and a movable assembly plate according to an embodiment of the present invention is shown.

[0019] Reference numerals list 1. Fixed handle; 101. Annular inclined plate; 102. Guide slide hole A; 2. Spiral drive rod; 201. Spiral groove; 3. Movable handle; 4. Drive sleeve; 5. Main connecting tube; 501. Guide slide hole B; 502. Assembly groove; 6. Ball bearing; 7. Adjustment tube; 701. Guide slide rod; 702. Ring plate; 8. Parallel connecting rod; 9. Support connecting rod; 10. Movable assembly plate; 11. Grinding block; 12. Elastic part. DETAILED DESCRIPTION

[0020] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0021] Example: Please refer to Figures 1 to 10 : The present invention proposes a grinding device for inner surface processing of fitness equipment, comprising: a fixed handle 1, a movable handle 3 and an adjusting cylinder 7; an annular inclined plate 101 is provided on the outside of the fixed handle 1, and a spiral drive rod 2 is fixedly connected to the inside of the fixed handle 1; the movable handle 3 is connected to a drive sleeve 4, and the drive sleeve 4 is connected to the fixed handle 1 through one end, and the drive sleeve 4 is connected to a main connecting tube 5; the main connecting tube 5 is connected to the outside of the spiral drive rod 2, and a ball 6 is connected to the inside of the main connecting tube 5, and the ball 6 is connected to the spiral drive rod 2; a parallel connecting rod 8 is connected to the outside of the main connecting tube 5, and the other end of the parallel connecting rod 8 is connected to a movable assembly plate 10, and the outer side of the movable assembly plate 10 is connected by A grinding block 11 is fixedly connected with bolts; eight parallel connecting rods 8 are rotatably connected to the outer side of the main connecting tube 5 in a circular shape, and the other end of the parallel connecting rod 8 is rotatably connected to the inner side of the movable assembly plate 10. The movable assembly plate 10 is connected to the main connecting tube 5 through two parallel connecting rods 8. When the main connecting tube 5 is located inside the fitness tube, the parallel connecting rod 8 drives the movable assembly plate 10 to move outward, so that the four grinding blocks 11 always remain parallel to the main connecting tube 5, and the outer side of the grinding block 11 is in horizontal contact with the inner wall of the fitness tube, thereby increasing the contact area between the grinding block 11 and the inner wall of the fitness tube and ensuring the grinding effect of the inner wall of the fitness tube; the adjusting tube 7 is connected to the main connecting tube 5, and the main connecting tube 5 is connected to the supporting connecting rod 9, and the other end of the supporting connecting rod 9 is connected to the parallel connecting rod 8.

[0022] In addition, according to the embodiment of the present invention, referring to the attached Figure 7 , Fig. 9 and Fig.10 As shown, the main connecting tube 5 is provided with four guide sliding holes B501 in a circumferential shape inside, and one side of the adjusting tube 7 is provided with four guide sliding rods 701 in a circumferential shape. The guide sliding rods 701 are slidably connected in the guide sliding holes B501. The outer side of the adjusting tube 7 is rotatably connected with four supporting connecting rods 9 in a circumferential shape. The other end of the supporting connecting rod 9 is rotatably connected with the parallel connecting rod 8. By adopting the above technical solution, the adjusting cylinder 7 can be slidably adjusted according to the inner diameter specifications of the required fitness tube to be polished, and the parallel connecting rod 8 is driven to rotate by the supporting connecting rod 9 connected to the adjusting cylinder 7, thereby increasing the spacing between the four movable assembly plates 10, and making the outer grinding block 11 of the movable assembly plate 10 contact with the inner wall of the fitness tube, so as to better meet the needs of grinding the inner wall of fitness tubes of different specifications, and the versatility is extremely high.

[0023] In addition, according to the embodiment of the present invention, referring to the attached Figure 6 and Fig. 9 As shown, one end of the guide slide bar 701 is connected to the ring plate 702, and the elastic member 12 is sleeved on the outside of the four guide slide bars 701, one end of the elastic member 12 is in contact with the ring plate 702, and the other end of the elastic member 12 is in contact with the outside of the main connecting tube 5; By adopting the above technical solution, the elastic member 12 applies thrust to the adjusting cylinder 7, driving the four grinding blocks 11 to move outward synchronously, so that the grinding blocks 11 are tightly fitted with the inner wall of the pipe under the thrust of the elastic member 12, thereby improving the grinding effect of the inner wall of the fitness pipe.

[0024] In addition, according to the embodiment of the present invention, referring to the attached Figure 3 , Figure 4 , Figure 7 Figure 8 As shown, the fixed handle 1 has two symmetrical guide sliding holes A102, the drive sleeve 4 is slidably connected in the guide sliding hole A102, the inner side of the drive sleeve 4 is in sliding contact with the outer side of the spiral drive rod 2, the drive sleeve 4 is rotatably connected with the main connecting tube 5, the inner side of the main connecting tube 5 is in sliding contact with the outer side of the spiral drive rod 2, the outer side of the spiral drive rod 2 has two spiral grooves 201, the inner side of the main connecting tube 5 has four assembly grooves 502, the assembly groove 502 has a ball 6 installed in it, and one end of the ball 6 is connected to the spiral groove 201; By adopting the above technical solution, when the movable handle 3 drives the main connecting tube 5 to move back and forth inside the fitness tube through the driving sleeve 4, the ball 6 is guided by the spiral groove 201 on the outer side of the spiral driving rod 2 to drive the main connecting tube 5 to rotate, so that the grinding block 11 contacts various parts of the inner wall of the fitness tube, thereby grinding various parts of the inner wall of the fitness tube. The inner wall of the fitness tube can be ground by reciprocating the movable handle 3 three to five times, which greatly improves the grinding efficiency of the inner wall of the fitness tube.

[0025] Specific usage and function of this embodiment: When using the present invention, the user holds the fixed handle 1 with one hand to insert the spiral drive rod 2 into the fitness pipe, and the outer annular inclined plate 101 of the fixed handle 1 contacts the pipe mouth; the adjustment cylinder 7 moves under the thrust of the elastic member 12, and the adjustment cylinder 7 drives the parallel connecting rod 8 to rotate through the connected supporting connecting rod 9, thereby increasing the spacing between the four movable assembly plates 10, so that the grinding block 11 outside the movable assembly plate 10 contacts the inner wall of the fitness pipe horizontally, increasing the contact area between the grinding block 11 and the inner wall of the fitness pipe, and ensuring the grinding effect of the inner wall of the fitness pipe. The utility model can meet the needs of grinding the inner wall of fitness pipes of different specifications, and has high versatility; next, the user pulls the movable handle 3 with the other hand, and the movable handle 3 drives the main connecting tube 5 to move back and forth inside the fitness pipe through the driving sleeve 4, and the ball 6 is guided by the spiral groove 201 on the outer side of the spiral driving rod 2 to drive the main connecting tube 5 to rotate, so that the grinding block 11 contacts various parts of the inner wall of the fitness pipe, and has the effect of grinding various parts of the inner wall of the fitness pipe. The inner wall of the fitness pipe can be ground by reciprocating the movable handle 3 three to five times, which greatly improves the grinding efficiency of the inner wall of the fitness pipe.

[0026] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0027] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A grinding device for inner surface processing of fitness equipment, characterized in that: include: A fixed handle (1); an annular inclined plate (101) is provided on the outside of the fixed handle (1), and a spiral drive rod (2) is fixedly connected to the inside of the fixed handle (1); a movable handle (3), the movable handle (3) is connected to a drive sleeve (4), and the drive sleeve (4) is connected to the fixed handle (1), and one end of the drive sleeve (4) is connected to a main connecting tube (5); the main connecting tube (5) is connected to the outside of the spiral drive rod (2), and a ball bearing is connected to the inside of the main connecting tube (5). (6), and the ball (6) is connected to the spiral drive rod (2); the main connecting tube (5) is connected to a parallel connecting rod (8) at its outer side, and the other end of the parallel connecting rod (8) is connected to a movable assembly plate (10), and the outer side of the movable assembly plate (10) is fixedly connected to a grinding block (11) by bolts; an adjusting tube (7), the adjusting tube (7) is connected to the main connecting tube (5), and the main connecting tube (5) is connected to a supporting connecting rod (9), and the other end of the supporting connecting rod (9) is connected to the parallel connecting rod (8).

2. The grinding device for inner surface processing of fitness equipment according to claim 1, characterized in that: The outer side of the main connecting tube (5) is rotatably connected to eight parallel connecting rods (8), and the other end of the parallel connecting rod (8) is rotatably connected to the inner side of the movable assembly plate (10). The movable assembly plate (10) is connected to the main connecting tube (5) via two parallel connecting rods (8).

3. The grinding device for inner surface processing of fitness equipment according to claim 1, characterized in that: The main connecting tube (5) is provided with four guide sliding holes B (501) in a circumferential shape inside, and one side of the adjusting tube (7) is provided with four guide sliding rods (701) in a circumferential shape, and the guide sliding rods (701) are slidably connected to the guide sliding holes B (501).

4. The grinding device for inner surface processing of fitness equipment according to claim 1, characterized in that: The outer side of the adjustment cylinder (7) is rotatably connected to four supporting rods (9), and the other end of the supporting rod (9) is rotatably connected to the parallel connecting rod (8).

5. The grinding device for inner surface processing of fitness equipment according to claim 3, characterized in that: One end of the guide slide bar (701) is connected to the ring plate (702), and the elastic member (12) is sleeved on the outside of the four guide slide bars (701). One end of the elastic member (12) is in contact with the ring plate (702), and the other end of the elastic member (12) is in contact with the outside of the main connecting tube (5).

6. The grinding device for inner surface processing of fitness equipment according to claim 1, characterized in that: The fixed handle (1) has two symmetrical guide sliding holes A (102) formed inside, the drive sleeve (4) is slidably connected inside the guide sliding holes A (102), and the inner side of the drive sleeve (4) is in sliding contact with the outer side of the spiral drive rod (2).

7. The grinding device for inner surface processing of fitness equipment according to claim 1, characterized in that: The driving sleeve (4) is rotatably connected to the main connecting tube (5), and the inner side of the main connecting tube (5) is in sliding contact with the outer side of the spiral driving rod (2).

8. The grinding device for inner surface processing of fitness equipment according to claim 7, characterized in that: The spiral driving rod (2) is provided with two spiral grooves (201) on the outside, and the main connecting tube (5) is provided with four assembly grooves (502) on the inside. Balls (6) are installed in the assembly grooves (502), and one end of the ball (6) is connected to the spiral groove (201).

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