Spring type rotatable bolt anti-corrosion manual tool
By designing a spring-type rotatable bolt anti-corrosion hand tool, the movable handle, transmission assembly and limit blocks, the problem of small space during the bolt anti-corrosion brushing process is solved, efficient and even coating the bolt surface is achieved, and the anti-corrosion effect is improved .
Patent Information
- Application Number
- CN202411498385.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-10
AI Technical Summary
In petrochemical equipment, during the anti-corrosion coating process of bolts, due to the small space, it is difficult to evenly cover the grease with a brush, resulting in poor anti-corrosion effect.
A spring-type rotatable bolt anti-corrosion hand tool is designed to drive the driving wheel through the movable handle and transmission assembly, combining the V-shaped movable plate and limit block, and using elastic tape to achieve lubricating grease on the surface of the bolt, suitable for different sizes. and adjust the fitting area between the tape and the bolt through the limit block.
It realizes efficient and even application of lubricating grease on the surface of the bolt in a narrow space, and is suitable for bolts of different sizes, increasing the application area and improving the corrosion resistance.
Smart Images
Figure CN119098364A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of petrochemical devices, in particular to a spring-type rotatable bolt anti-corrosion hand tool. Background Art
[0002] Bolts are a common type of fasteners, widely used in all walks of life. There are huge numbers of them in petrochemical plants, and they are of various types. Bolt corrosion protection is also an important part of the work. At present, in addition to some material upgrades (such as plating, stainless steel materials), the common anti-corrosion method for bolt corrosion protection is generally to manually apply molybdenum disulfide lithium-based grease with a brush for corrosion protection. On the one hand, the work efficiency is low. On the other hand, some bolts (caps) often have limited space on the side facing the flange or pipeline. Using a brush often cannot make the grease evenly covered, which reduces the anti-corrosion effect. Summary of the invention
[0003] In order to solve the problem that it is inconvenient to apply grease to the inner side of the bolt (cap) in a narrow space when applying grease to the bolts in petrochemical equipment or other workplaces, the present invention provides a spring-type rotatable bolt anti-corrosion hand tool, and the technical solution adopted is as follows: A spring-type rotatable bolt anti-corrosion hand tool, characterized by comprising: Fixed handle; A movable handle, rotatably connected to the fixed handle; A driving wheel, rotatably connected to the upper portion of the fixed handle; A transmission assembly is connected between the end of the movable handle close to the driving gear and the driving wheel. Rotating the movable handle can drive the driving wheel to rotate through the transmission assembly; The movable plate comprises a first movable plate and a second movable plate, which are arranged in a V shape, wherein one end of the first movable plate and the second movable plate in the length direction close to the driving wheel is rotatably connected to the fixed handle, and the other end away from the driving wheel is rotatably connected to a set of driven wheels; A cloth belt is closed and connected between the driving wheel and two sets of driven wheels; The limit assembly is arranged on the upper part of the fixed handle and is used to limit the rotation angle of the two movable plates.
[0004] Furthermore, the transmission assembly includes a sector gear, a double gear and a driving gear. The sector gear is fixedly connected to one end of the movable handle and is meshed and connected to the small diameter gear of the double gear. The large diameter gear of the double gear is meshed and connected to the driving gear. The driving gear is coaxially connected to the driving wheel.
[0005] Furthermore, the double gears are provided with two groups, and the two groups of double gears are transmission-connected.
[0006] Furthermore, a first elastic element is connected between the movable handle and the fixed handle.
[0007] Furthermore, the limiting assembly includes a first limiting block, which is fixedly connected to the upper portion of the fixed handle and is located between the two movable plates.
[0008] Furthermore, the limiting assembly also includes a second limiting block, and the second limiting blocks are provided in two groups. The two groups of second limiting blocks are both fixedly connected to the upper part of the fixed handle and are respectively located on the outer sides of the two movable plates.
[0009] Furthermore, the movable plate is provided with a plurality of groups of mounting holes for fixing the driven gears at intervals along the length direction.
[0010] Furthermore, a second elastic element is connected between the outer side of the movable plate and the fixed handle.
[0011] Furthermore, the cloth belt is an elastic cloth belt.
[0012] Furthermore, the outer surfaces of the fixed handle and the movable handle are both provided with insulating sheaths.
[0013] The beneficial effects of the present invention are: 1. The active wheel can be driven to rotate through the movable handle and the transmission assembly, so that the cloth belt arranged between the active wheel and the driven wheel can rotate, and lubricating grease is applied on the surface of the cloth belt, thereby realizing the operation of applying lubricating grease to the surface of the bolt. The overall structure is simple and light, and is particularly suitable for applying anti-corrosion coatings to bolts in narrow spaces; 2. The driven wheel is connected to the fixed handle through a movable plate, and the movable plate can rotate along the fixed handle. The setting of this structure can adaptively adjust the size of the space between the two movable plates. Combined with the technical feature that the position of the driven wheel can be adjusted in the length direction of the movable plate, it can be applied to bolts of different sizes. 3. A first limit block is provided between the two movable plates, and the minimum angle between the two movable plates can be limited by the first limit block. When the bolt is placed on the inner side of the cloth belt for coating operation, the setting of the first limit block can stop the two movable plates from rotating. At this time, the fixed handle is continuously moved downward to increase the fitting area between the cloth belt and the outer surface of the bolt. Similarly, a second limit block is provided on the outer side of the two movable plates. When the bolt is placed on the outer side of the cloth belt to coat the lower half of the bolt with anti-corrosion paint, the outward expansion angle of the movable plate is limited by the second limit block. When the angle of the movable plate stops changing, the fixed handle is continuously moved upward to drive the cloth belt to further wrap the bolt, thereby increasing the fitting area between the cloth belt and the bolt. 4. By arranging a second spring between the outer side of the movable plate and the upper part of the fixed handle, the cloth belt and the bolt can be closely fitted and the movable plate can be reset. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of the structure of the present invention Figure 2 Right view of the connection mechanism between the driving wheel and the transmission assembly Among them, 1-fixed handle, 2-movable handle, 3-first rotating shaft, 4-sector gear, 5-first double gear, 6-second double gear, 7-driving gear, 8-driving wheel, 9-first movable plate, 10-second movable plate, 11-second rotating shaft, 12-first driven wheel, 13-second driven wheel, 14-first limit block, 15-second limit block, 16-mounting hole, 17-first spring, 18-second spring, 19-cloth belt, 20-connecting shaft. DETAILED DESCRIPTION
[0015] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0016] In the description of the invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the viewing direction or positional relationships and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.
[0017] like Figure 1 The spring-type rotatable bolt anti-corrosion hand tool shown includes a fixed handle 1, a movable handle 2, a transmission assembly, a driving wheel 8, a first movable plate 9, a second movable plate 10, a first driven wheel 12, a second driven wheel 13 and a cloth belt 19.
[0018] Specifically, the outer surface of the movable handle 2 is covered with an insulating sheath, and one end is rotatably connected to the fixed handle 1 through a first rotating shaft 3. A first spring 17 is connected between the movable handle 2 and the fixed handle 1. The movable handle 2 can be rotated along the fixed handle 1 by rotating, and can be reset by the first spring 17 when released.
[0019] An insulating rubber sheath is provided on the outer surface of the fixed handle 1, and a driving wheel 8 is rotatably connected to the upper part. The fixed handle 1 located above the driving wheel 8 is also rotatably connected to two groups of movable plates, including a first movable plate 9 and a second movable plate 10. The two movable plates are distributed in a V shape, and one end of the two movable plates in the length direction is rotatably connected to the upper part of the fixed handle 1 through a group of second rotating shafts 11 respectively. The first movable plate 9 and the second movable plate 10 are rotatably connected to the first driven wheel 12 and the second driven wheel 13 at one end away from the fixed handle 1 respectively. The driving wheel 8, the first driven wheel 12 and the second driven wheel 13 are distributed in a triangular shape. The cloth belt 19 is connected between the driving wheel 8, the first driven wheel 12 and the second driven wheel 13. The rotation of the driving wheel 8 can drive the cloth belt 19 to rotate around the driving wheel 8 and the two groups of driven wheels. Moreover, in the present embodiment, the cloth belt 19 is made of elastic elastic cloth material, which can fit tightly with the surface of the bolt to be coated.
[0020] The first movable plate 9 and the second movable plate 10 are provided with a plurality of groups of mounting holes 16 at intervals along the length direction. The first driven wheel 12 and the second driven wheel 13 are rotatably connected to the first movable plate 9 and the second movable plate 10 through the mounting holes 16. Moreover, by installing the driven wheels on the mounting holes 16 at different positions, the size of the triangle formed by the two driven wheels and the driving wheel 8 can be adjusted, thereby being suitable for the application of anti-corrosion paint to bolts of different sizes.
[0021] The transmission assembly is connected between the movable handle 2 and the driving wheel 8, and is used to drive the driving wheel 8 to rotate through the movable handle 2. Specifically, the transmission assembly includes a fan gear 4, a first double gear 5, a second double gear 6, and a driving gear 7. The fan gear 4 is fixedly connected to one end of the movable handle 2 close to the driving wheel 8, and the first spring 17 is connected between the fan gear 4 and the fixed handle 1. The fan gear 4 can be driven to rotate by rotating the movable handle 2. The first double gear 5 and the second double gear 6 are distributed from bottom to top and are both rotatably connected to the front side of the fixed handle 1. The small diameter gear of the first double gear 5 is meshed and connected to the fan gear 4, the large diameter gear of the first double gear 5 is meshed and connected to the small diameter gear of the second double gear 6, and the large diameter gear of the second double gear 6 is meshed and connected to the driving gear 7. Moreover, it should be noted that in this embodiment, Figure 2 As shown, the upper front side of the fixed handle 1 is rotatably connected to a connecting shaft 20 , and the driving gear 7 and the driving wheel 8 are both coaxially and fixedly connected to the connecting shaft 20 .
[0022] The movable handle 2 rotates around the first rotating shaft 3, which will drive the fan gear 4 to drive the first double gear 5 and the second double gear 6 to rotate. The second double gear 6 drives the driving gear 7 to rotate, and then drives the driving wheel 8 to rotate through the connecting shaft 20, thereby driving the driving wheel 8, and finally drives the cloth belt 19 to rotate along the driving wheel 8, the first driven wheel 12 and the second driven wheel 13.
[0023] In this embodiment, a limiting device for limiting the rotation angle of the first movable plate 9 and the second movable plate 10 is further provided, and the limiting device includes a first limiting block 14 and two groups of second limiting blocks 15 fixedly connected to the upper part of the fixed handle 1, the first limiting block 14 is located between the two movable plates, and the two groups of second limiting blocks 15 are respectively located on the outer sides of the first movable plate 9 and the second movable plate 10, and the first limiting block 14 and the two groups of second limiting blocks 15 are triangular in structure, and the minimum angle between the first movable plate 9 and the second movable plate 10 can be limited by the first limiting block 14 provided, and when the bolt is placed inside the cloth belt 19 for application, the movable plate rotates toward the first limiting block 14 until it can no longer rotate, and at this time the operator can move the fixed handle 1 downward (based on Figure 1 The cloth tape 19 can be moved in the direction of the view (view direction), at this time, the cloth tape 19 can be further moved downward to increase the fitting area between the cloth tape 19 and the bolt; the maximum angle between the first movable plate 9 and the second movable plate 10 can be limited by two sets of second limit blocks 15. When the bolt is placed on the outside of the cloth tape 19 for coating, the outer side of the cloth tape 19 abuts against the lower half of the bolt. At this time, the movable plate will rotate toward the second limit block 15. When it is unable to continue to rotate, the entire tool can be moved upward by fixing the handle 1, so that the cloth tape 19 can be further fitted with the lower half of the bolt, thereby increasing the fitting area between the cloth tape 19 and the bolt.
[0024] In addition, a group of second springs 18 are connected between the outer side of the first movable plate 9 and the upper left part of the fixed handle 1, and between the outer side of the second movable plate 10 and the upper right part of the fixed handle 1. The first movable plate 9 and the second movable plate 10 can be reset by the setting of the second springs 18.
[0025] When applying anti-corrosion paint to bolts using the device, firstly, the positions of the first driven wheel 12 and the second driven wheel 13 in the length direction of the first movable plate 9 and the second movable plate 10 are adjusted according to the size of the bolts, and the size of the triangle formed by the cloth tape 19 is adjusted to adapt to bolts of different sizes; then, lubricating grease is applied to the inner surface of the cloth tape 19, and the operator holds the fixed handle 1 and puts the triangular area on the outer side of the bolt to be coated, and moves the fixed handle 1 to make the inner side of the cloth tape 19 fit the bolt, as shown in FIG. Figure 1 Then hold the movable handle 2, and the rotation of the movable handle 2 drives the sector gear 4 to rotate, and then the two sets of double gears are used to change speed and drive the driving gear 7 to drive the driving wheel 8 to rotate, so that the cloth belt 19 moves along the surface of the bolt to achieve the application of lubricating grease to the surface of the bolt. Moreover, it should be noted that during the operation, the operator can appropriately move downward (in Figure 1Move the fixed handle 1) in the viewing direction to make the contact area between the cloth tape 19 and the surface of the bolt as large as possible. Generally, the outer surface of half the circumference of the bolt can be wrapped. If the tool can be rotated at an angle for operation in the environment where the bolt is located, the above steps can be repeated after rotating a certain angle to achieve coating of the entire outer surface of the bolt.
[0026] If the bolt is in an environment where the angle of the smear tool cannot be turned, the tool can be removed, grease can be applied to the outer side of the tape 19, and then the tool can be moved so that the outer side of the tape 19 is Figure 1 The upper end face in the viewing direction fits with the lower half of the bolt. Figure 1 The tool is moved in the viewing direction to fit the cloth tape 19 with the outer surface of the lower half of the bolt. Generally, the outer surface of the lower half of the bolt can be wrapped. At this time, the movable handle 2 is rotated to drive the driving wheel 8 to rotate through the transmission assembly, thereby driving the cloth tape 19 to rotate, and the lubricating grease is applied to the outer surface of the lower half of the bolt.
[0027] Of course, in the actual operation process, due to the different locations and environments of the bolts, it can be selected whether to place the bolts inside or outside the coating tool for coating operation according to the actual situation.
[0028] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.
Claims
1. A spring-type rotatable bolt anti-corrosion hand tool, characterized in that: include: Fixed handle; A movable handle, rotatably connected to the fixed handle; A driving wheel, rotatably connected to the upper portion of the fixed handle; A transmission assembly is connected between the end of the movable handle close to the driving gear and the driving wheel. Rotating the movable handle can drive the driving wheel to rotate through the transmission assembly; The movable plate comprises a first movable plate and a second movable plate, which are arranged in a V shape, wherein one end of the first movable plate and the second movable plate in the length direction close to the driving wheel is rotatably connected to the fixed handle, and the other end away from the driving wheel is rotatably connected to a set of driven wheels; A cloth belt is closed and connected between the driving wheel and two sets of driven wheels; The limit assembly is arranged on the upper part of the fixed handle and is used to limit the rotation angle of the two movable plates.
2. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: The transmission assembly includes a sector gear, a double gear and a driving gear. The sector gear is fixedly connected to one end of the movable handle and is meshed and connected with the small diameter gear of the double gear. The large diameter gear of the double gear is meshed and connected with the driving gear. The driving gear is coaxially connected with the driving wheel.
3. The spring-type rotatable bolt anti-corrosion hand tool according to claim 2, characterized in that: The double gears are provided with two groups, and the two groups of double gears are transmission-connected.
4. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: A first elastic element is connected between the movable handle and the fixed handle.
5. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: The limiting assembly includes a first limiting block, which is fixedly connected to the upper part of the fixed handle and is located between the two movable plates.
6. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1 or 5, characterized in that: The limiting assembly also includes a second limiting block, and the second limiting blocks are provided in two groups. The two groups of second limiting blocks are both fixedly connected to the upper part of the fixed handle and are respectively located at the outer sides of the two movable plates.
7. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: The movable plate is provided with a plurality of groups of mounting holes for fixing the driven gears at intervals along the length direction.
8. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: A second elastic element is connected between the outer side of the movable plate and the fixed handle.
9. The spring-type rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: The cloth belt is an elastic cloth belt.
10. The spring-loaded rotatable bolt anti-corrosion hand tool according to claim 1, characterized in that: The outer surfaces of the fixed handle and the movable handle are both provided with insulating sheaths.