Sealing ring mounting tool

Abstract

The utility model discloses a sealing ring installation tool which comprises a base, an expansion assembly and a driving assembly, the expansion assembly comprises a plurality of expansion blocks arranged in an annular array mode, each expansion block is connected to the base in a sliding mode through a sliding block, and each sliding block moves in the radius direction of arc-shaped blocks arranged in an annular array mode; the driving assembly comprises a pushing part and a driving part, first connecting rods are hinged between the pushing part and the multiple sliding blocks, second connecting rods are hinged between the pushing part and the multiple expansion blocks, and the driving part is used for driving the pushing part to do linear motion; the moving direction of the pushing piece is perpendicular to the moving direction of the sliding block; the pushing piece is used for driving the multiple sliding blocks to move synchronously and driving the expansion blocks to rotate when moving. According to the sealing ring installation tool, the installation efficiency of the sealing ring is improved, the sealing effect of the installed sealing ring is improved, and the service life of the installed sealing ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of installation tools, and particularly relates to a sealing ring installation tool. Background Art

[0002] At the connection ends of many machines, pipelines, and valve bodies, sealing is required to ensure the sealing performance of the connection ends so that normal operation can be carried out. If no sealing is performed, it is very likely to cause external leakage and internal leakage, resulting in mechanical failures and economic losses.

[0003] The lip-shaped sealing ring is a sealing ring that can be applied to seal shaft parts. An installation groove is provided on the outer ring of the part, and the lip-shaped sealing ring is installed in the installation groove to achieve sealing. The lip-shaped sealing ring is made of rubber material, and its own elastic contraction is small. When installing, the staff needs to pull it forcefully to buckle it. The installation is difficult, the operation difficulty is large, the installation efficiency is reduced, and if the operation is not good, the sealing ring is easily damaged, affecting the sealing effect and service life of the sealing ring and causing waste of resources. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a sealing ring installation tool. By the expansion component, the diameter of the sealing ring is enlarged, facilitating the installation of the sealing ring into the installation groove of the part. The installation is simple and fast, greatly improving the installation efficiency of the sealing ring; and when installing, the sealing ring is evenly stressed and not easily damaged, improving the sealing effect and service life of the sealing ring.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A sealing ring installation tool, comprising:

[0007] A base;

[0008] An expansion component, including a plurality of expansion blocks arranged in a circular array, and the arc-shaped blocks provided on the plurality of expansion blocks are on the same circumference. Each expansion block is slidably connected to the base through a slider, and each slider moves in the radial direction of the arc of the circular array. The expansion block is rotatably connected to the top of the slider;

[0009] A driving component, the driving component includes a pushing member and a driving member. The pushing member is located at the center position of the plurality of expansion blocks. A first connecting rod is hinged between the pushing member and each of the plurality of sliders, and a second connecting rod is hinged between the pushing member and each of the plurality of expansion blocks. The driving member is used to drive the pushing member to perform a linear motion, and the moving direction of the pushing member is perpendicular to the moving direction of the slider; when the pushing member moves, it is used to drive the plurality of sliders to move synchronously and to drive the expansion block to rotate.

[0010] As a further improvement of the above technical solution, the base includes a bottom plate, support columns and a mounting plate. The mounting plate is fixed above the bottom plate by a plurality of the support columns. The mounting plate is a circular plate. A plurality of sliding grooves are arranged in an annular array on the mounting plate, and the plurality of sliding grooves are all arranged in the radial direction of the mounting plate. The plurality of sliders are respectively and slidably connected to the plurality of sliding grooves.

[0011] As a further improvement of the above technical solution, the pushing member includes a push rod and a push block. The push block is connected to the top of the push rod. A sliding hole is arranged at the center of the mounting plate. The push rod is slidably connected to the sliding hole. A plurality of connecting pieces are arranged in an annular array on the side wall of the push block. One ends of the first connecting rod and the second connecting rod are respectively rotatably connected to the connecting pieces. The other end of the first connecting rod is rotatably connected to the slider. The other end of the second connecting rod is rotatably connected to the expansion block.

[0012] As a further improvement of the above technical solution, a rotation prevention structure is connected between the sliding hole and the push rod. The rotation prevention structure is used to prevent the push rod from rotating relative to the sliding hole.

[0013] As a further improvement of the above technical solution, a first arc-shaped groove and a second arc-shaped groove are arranged on the slider. A first sliding rod and a second sliding rod are respectively slidably connected in the first arc-shaped groove and the second arc-shaped groove. The length of the second arc-shaped groove is less than that of the first arc-shaped groove. One end of the expansion block away from the arc-shaped block and one end of the second connecting rod away from the connecting piece are both connected to the first sliding rod. One end of the expansion block close to the arc-shaped block is connected to the second sliding rod. When the second connecting rod moves along with the push block, it drives the first sliding rod to move along the track of the first arc-shaped groove to drive the expansion block to deflect, and the second sliding rod moves along the track of the second arc-shaped groove and is used to limit the deflection angle of the expansion block.

[0014] As a further improvement of the above technical solution, an elastic member is connected between the push block and the mounting plate. The elastic member is used to provide an elastic force to drive the push block to reset after moving.

[0015] As a further improvement of the above technical solution, the driving member includes a pressing rod. One end of the pressing rod is a hinged end and is rotatably connected to the base. The other end of the pressing rod is a driving end. A movable rod is arranged at the bottom of the push rod. A waist-shaped hole is arranged in the middle section of the pressing rod. The movable rod is movably connected in the waist-shaped hole. When the pressing rod rotates based on the hinged end, it is used to drive the push rod to move in a straight line.

[0016] As a further improvement of the above technical solution, a hinge block is arranged at the bottom of the mounting plate. The hinged end of the pressing rod is rotatably connected to the bottom of the hinge block.

[0017] As a further improvement of the above technical solution, a limiting hole is provided on the bottom plate, and a limiting bolt is threadedly connected in the limiting hole, and the limiting bolt is located directly below the pressing rod.

[0018] As a further improvement of the above technical solution, an extension rod is rotatably connected to the driving end of the pressing rod, and a sliding sleeve is sleeved on the pressing rod.

[0019] The beneficial effects of the present utility model are:

[0020] The present utility model expands the diameter of the sealing ring through the expansion assembly, and when the sealing ring contracts, the arc-shaped block is inclined, which is convenient for the sealing ring to automatically slide into the installation groove of the part. The installation is simple and fast, greatly improving the installation efficiency of the sealing ring; and when installing, the sealing ring is evenly stressed and not easily damaged, improving the sealing effect and service life of the sealing ring. Description of the Drawings

[0021] The present utility model will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 is an assembly schematic diagram of a sealing ring installation tool according to an embodiment of the present utility model;

[0023] Figure 2 is Figure 1 the structural split view of

[0024] Figure 3 is a top view of a sealing ring installation tool according to an embodiment of the present utility model;

[0025] Figure 4 is Figure 3 the sectional view taken along A-A in

[0026] Figure 5 is Figure 3 the sectional view taken along B-B in

[0027] Figure 6 is a structural schematic diagram of an installation plate in a sealing ring installation tool according to an embodiment of the present utility model;

[0028] Figure 7 is a structural schematic diagram of an expansion assembly in a sealing ring installation tool according to an embodiment of the present utility model;

[0029] Figure 8 is a partial structural schematic diagram of an installation plate in a sealing ring installation tool according to an embodiment of the present utility model;

[0030] Figure 9 is Figure 8 the sectional view along the middle plane of the slider in

[0031] Reference numerals:

[0032] 1. Base; 11. Bottom plate; 12. Support column; 13. Mounting plate; 131. Slide groove; 132. Slide hole; 133. Mounting hole; 14. Limit bolt;

[0033] 2. Expansion assembly; 21. Slide block; 211. T-shaped slide block; 212. First arc groove; 213. Second arc groove; 22. Expansion block; 23. Arc block; 24. First connecting rod; 25. Second connecting rod; 26. First slide rod; 27. Second slide rod;

[0034] 3. Driving assembly; 31. Push block; 311. Connecting piece; 312. Connecting hole; 313. Reset hole; 32. Push rod; 321. Fixed pin shaft; 33. Spring; 34. Pressure rod; 35. Slide sleeve; 36. Extension rod; 37. Hinge block;

[0035] 4. Parts;

[0036] 5. Sealing ring. Detailed implementation manners

[0037] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. For example, fixed connection / installation can be connected by accessories such as screws and bolts, or directly connected by welding, bonding and other methods. The various technical features in the creation of the present utility model can be combined with each other without conflict.

[0038] Refer to Figures 1-9, an embodiment of the present utility model provides a sealing ring 5 installation tool, which includes a base 1, an expansion component 2 and a driving component 3. The expansion component 2 includes a plurality of expansion blocks 22 arranged in a circular array, and the arc-shaped blocks 23 provided on the plurality of expansion blocks 22 are on the same circumference to facilitate the placement of the sealing ring 5. Each expansion block 22 is slidably connected to the base 1 through a slider 21. Each slider 21 moves in the radial direction of the circle formed by the plurality of arc-shaped blocks 23. When the plurality of sliders 21 move inwards or outwards synchronously, the plurality of arc-shaped blocks 23 are in an expanded open state or a closed state. When in the expanded open state, the diameter of the sealing ring 5 can be enlarged, and when in the closed state, the sealing ring 5 elastically contracts and returns. In addition, the expansion block 22 is rotatably connected to the top of the slider 21. Thus, when the plurality of arc-shaped blocks 23 are in the expanded open state or the closed state, the inclination angle of the side wall of the arc-shaped block 23 changes. That is, when expanding, the inclination state of the arc-shaped block 23 gradually becomes larger, so as to prevent the sealing ring 5 from detaching from the arc-shaped block 23 under the action of elastic force. On the contrary, when the plurality of arc-shaped blocks 23 are closed, the inclination state of the arc-shaped block 23 gradually becomes smaller, and the sealing ring 5 will detach from the arc-shaped block 23 under the action of elastic force, and then slide onto the sealing groove of the part 4, making the installation of the sealing ring 5 simpler in this way.

[0039] The driving component 3 includes a pushing member and a driving member. The pushing member is located at the central position of the plurality of expansion blocks 22. A first connecting rod 24 is connected between the pushing member and the plurality of sliders 21, and both ends of the first connecting rod 24 are hinged to the pushing member and the slider 21 respectively. A second connecting rod 25 is connected between the pushing member and the plurality of expansion blocks 22, and both ends of the second connecting rod 25 are hinged to the pushing member and the expansion block 22 respectively. The driving member can drive the pushing member to move linearly in the vertical direction, and the moving direction of the pushing member is perpendicular to the moving direction (horizontal direction) of the slider 21. In this way, when the pushing member moves up and down, it can drive the plurality of sliders 21 to slide outwards or inwards synchronously on the base 1 under the action of the first connecting rod 24, and can drive the expansion block 22 to rotate based on the slider 21 under the action of the second connecting rod 25.

[0040] In an embodiment of the present utility model, when installing the sealing ring 5 on the part 4, the sealing ring 5 is sleeved on the circumference formed by the plurality of arc-shaped blocks 23. The driving member drives the pushing member to move downward, thereby driving the slider 21 to slide outward on the base 1, so that the plurality of arc-shaped blocks 23 are in an expanded state to expand the sealing ring 5. At this time, the part 4 is placed between the plurality of arc-shaped blocks 23, and then the driving member drives the pushing member to move upward, and the slider 21 moves back to its original position, that is, the plurality of arc-shaped blocks 23 change to a closed state. The sealing ring 5 contracts under its elastic action, and at this time, the expansion block 22 rotates to make the side wall of the arc-shaped block 23 in an inclined state, and the sealing ring 5 slides from the arc-shaped block 23 into the installation groove of the part 4, thereby completing the installation of the sealing ring 5.

[0041] In a specific embodiment, referring to Figure 2 , Figure 4 or Figure 5 , the base 1 includes a bottom plate 11, support columns 12 and a mounting plate 13. The mounting plate 13 is fixed above the bottom plate 11 by a plurality of the support columns 12, and the mounting plate 13 is horizontally placed. The mounting plate 13 is provided with mounting holes 133, and the tops of the support columns 12 are locked in the mounting holes 133 by screws. Further, referring to Figure 6 , the mounting plate 13 is a circular plate, and a plurality of sliding grooves 131 are annularly arranged on the mounting plate 13, and the plurality of sliding grooves 131 are all arranged in the radial direction of the mounting plate 13. The plurality of sliders 21 are respectively slidably connected to the plurality of sliding grooves 131. Further still, the sliding groove 131 is a T-shaped groove, and the bottom of the slider 21 is provided with a T-shaped slider 211, and the T-shaped slider 211 is slidably connected to the T-shaped groove. Through the cooperation of the T-shaped groove and the T-shaped slider 211, it is ensured that the slider 21 can only move linearly in the horizontal direction, that is, to ensure the stability of the expansion and closing of the plurality of arc-shaped blocks 23.

[0042] In a specific embodiment, referring to Figure 2 , Figures 4-6, the driving member includes a push rod 32 and a push block 31. The push block 31 is connected to the top of the push rod 32. Specifically, the push block 31 is provided with a connection hole 312 along its axis. The top of the push rod 32 is connected to the connection hole 312, and a fixing pin shaft 321 is used to fix the push rod 32 and the push block 31. Correspondingly, a sliding hole 132 is provided at the center of the mounting plate 13. The push rod 32 is slidably connected to the sliding hole 132. In this embodiment, a rotation prevention structure is connected between the sliding hole 132 and the push rod 32. The rotation prevention structure is used to prevent the push rod 32 from rotating relative to the sliding hole 132. Specifically, the push rod 32 and the sliding hole 132 both adopt the same non-circular structure. The non-circular push rod 32 and the sliding hole 132 form the rotation prevention structure, which can ensure that the push rod 32 slides vertically in the sliding hole 132 without axial rotation. Further, the push rod 32 adopts a hexagonal square shaft, and the shapes of the sliding hole 132 and the connection hole 312 match the shape of the push rod 32.

[0043] Refer to 7 and Figure 8 , a plurality of connecting pieces 311 are annularly arranged on the side wall of the push block 31. Each connecting piece 311 is correspondingly connected to one of the sliding blocks 21 and the expansion blocks 22. Specifically, there are two first connecting rods 24. One ends of the two first connecting rods 24 are rotatably connected to the connecting piece 311, and the other ends of the two first connecting rods 24 are rotatably connected to the sliding block 21. In this way, when the push block 31 moves up and down, the sliding block 21 can be driven to move in the sliding groove 131 under the action of the first connecting rod 24; one end of the second connecting rod 25 is rotatably connected to the connecting piece 311, and the other end of the second connecting rod 25 is rotatably connected to the expansion block 22. In this way, when the push block 31 moves up and down, the expansion block 22 can be driven to rotate under the action of the second connecting rod 25.

[0044] Further, refer to Figure 9, a first arc groove 212 and a second arc groove 213 are provided on the slider 21. The first arc groove 212 is arranged below the second arc groove 213. A first sliding rod 26 and a second sliding rod 27 are respectively and slidably connected in the first arc groove 212 and the second arc groove 213. One end of the expansion block 22 away from the arc block 23 and one end of the second connecting rod 25 away from the connecting piece 311 are both connected to the first sliding rod 26. One end of the expansion block 22 close to the arc block 23 is connected to the second sliding rod 27. When the second connecting rod 25 moves with the push block 31, it drives the first sliding rod 26 to move along the track of the first arc groove 212, so as to drive the expansion block 22 to deflect. At the same time, the second sliding rod 27 moves along the track of the second arc groove 213, and the length of the second arc groove 213 is less than the length of the first arc groove 212, thereby limiting the deflection angle of the expansion block 22. In this embodiment, when multiple arc blocks 23 are in an expanded state, that is, after the sealing ring 5 is expanded, the side wall of the arc block 23 in contact with the sealing ring 5 is in a vertical state, so that the sealing ring 5 stably stays on the arc block 23; when multiple arc blocks 23 gradually close together, the side wall of the arc block 23 inclines towards the part 4, so that the sealing ring 5 slides into the installation groove on the part 4.

[0045] In a preferred embodiment, referring to Figure 2 , Figure 4 or Figure 5 , an elastic member is connected between the push block 31 and the mounting plate 13. The elastic member is used to provide an elastic force to drive the push block to reset after moving. Specifically, the elastic member adopts a spring 33. A reset hole 313 is arranged along the axis of the push block 31. The diameter of the reset hole 313 is larger than the diameter of the connection hole 312, so that the push rod 32 passes through the reset hole 313 and is installed in the connection hole 312. One end of the spring 33 is connected to the mounting plate 13, and the other end of the spring 33 is connected to the bottom of the reset hole 313. When the driving member drives the push block 31 to move downward, the spring 33 is in a compressed state. After the acting force applied by the driving member to the push block 31 disappears, the elastic force of the spring 33 drives the push block 31 to move upward and reset, and drives the slider 21 to slide, so that multiple arc blocks 23 gradually close together.

[0046] In this embodiment, referring to Figures 2-5, the driving member includes a pressing rod 34. One end of the pressing rod 34 is a hinged end, and a hinge block 37 is provided at the bottom of the mounting plate 13. The hinged end of the pressing rod 34 is rotatably connected to the bottom of the hinge block 37; the other end of the pressing rod 34 is a driving end, and a movable rod is provided at the bottom of the push rod 31. A waist-shaped hole is provided in the middle section of the pressing rod 34, and the movable rod is movably connected in the waist-shaped hole. When the pressing rod 34 rotates based on the hinged end, it drives the push rod 32 to move up and down, and then drives the push block 31 to move up and down. At the same time, the movable rod moves in the waist-shaped hole to enable the pressing rod 34 and the push rod 32 to move relative to each other, ensuring that the push rod 32 can move vertically.

[0047] Further, a lengthening rod 36 is connected to the driving end of the pressing rod 34. By means of the lengthening rod 36, the torque is increased, making it more labor-saving to manually operate the rotation of the pressing rod 34. In addition, the lengthening rod 36 is rotatably connected to the pressing rod 34, and a sliding sleeve 35 is sleeved on the pressing rod 34. When the lengthening rod 36 rotates and is coaxial with the pressing rod 34, slide the sliding sleeve 35 to the connection between the lengthening rod 36 and the pressing rod 34 to fix the two, facilitating the operation of the lengthening rod 36. When the lengthening rod 36 rotates and is perpendicular to the pressing rod 34, slide the sliding sleeve 35 to abut against the lengthening rod 36 to fix the two, facilitating the storage of the lengthening rod 36.

[0048] In a preferred embodiment, referring to Figure 2 , Figure 4 or Figure 5 , a limiting hole is provided on the bottom plate 11, and a limiting bolt 14 is threadedly connected in the limiting hole. The limiting bolt 14 is located directly below the pressing rod 34. By adjusting the height of the limiting bolt 14, the position where the pressing rod 34 rotates downward can be limited, thereby limiting the maximum position where the push block 31 moves downward.

[0049] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A sealing ring installation tool, characterized in that, Comprising: Base; Expansion assembly, including a plurality of expansion blocks arranged in an annular array, and the arc-shaped blocks provided on the plurality of expansion blocks are on the same circumference. Each of the expansion blocks is slidably connected to the base through a slider, and each slider moves in the radial direction of the arc-shaped blocks of the annular array. The expansion block is rotatably connected to the top of the slider; Drive assembly, the drive assembly includes a pusher and a driver. The pusher is located at the central position of the plurality of expansion blocks. A first connecting rod is hingedly connected between the pusher and each of the plurality of sliders, and a second connecting rod is hingedly connected between the pusher and each of the plurality of expansion blocks. The driver is used to drive the pusher to perform a linear motion, and the motion direction of the pusher is perpendicular to the motion direction of the slider; when the pusher moves, it is used to drive the plurality of sliders to move synchronously and to drive the expansion block to rotate.

2. The installation tool for a sealing ring according to claim 1, characterized in that, The base includes a bottom plate, support columns and a mounting plate. The mounting plate is fixed above the bottom plate through a plurality of the support columns. The mounting plate is a circular plate. A plurality of chutes are arranged in an annular array on the mounting plate, and the plurality of chutes are all arranged in the radial direction of the mounting plate. The plurality of sliders are slidably connected to the plurality of chutes one by one.

3. The installation tool for a sealing ring according to claim 2, characterized in that, The pusher includes a push rod and a push block. The push block is connected to the top of the push rod. A sliding hole is provided at the center of the mounting plate. The push rod is slidably connected to the sliding hole. A plurality of connecting pieces are arranged in an annular array on the side wall of the push block. One end of each of the first connecting rod and the second connecting rod is rotatably connected to the connecting piece. The other end of the first connecting rod is rotatably connected to the slider, and the other end of the second connecting rod is rotatably connected to the expansion block.

4. The sealing ring installation tool according to claim 3, characterized in that, A rotation prevention structure is connected between the sliding hole and the push rod, and the rotation prevention structure is used to prevent the push rod from rotating relative to the sliding hole.

5. The sealing ring installation tool according to claim 3, characterized in that, The slider is provided with a first arc-shaped groove and a second arc-shaped groove. A first sliding rod and a second sliding rod are slidably connected in the first arc-shaped groove and the second arc-shaped groove respectively. The length of the second arc-shaped groove is less than that of the first arc-shaped groove. One end of the expansion block away from the arc-shaped block and one end of the second connecting rod away from the connecting piece are both connected to the first sliding rod. One end of the expansion block close to the arc-shaped block is connected to the second sliding rod. When the second connecting rod moves with the push block, it drives the first sliding rod to move along the track of the first arc-shaped groove to drive the expansion block to deflect, and the second sliding rod moves along the track of the second arc-shaped groove and is used to limit the deflection angle of the expansion block.

6. The installation tool for a sealing ring according to claim 3, wherein, An elastic member is connected between the push block and the mounting plate, and the elastic member is used to provide an elastic force to drive the push block to reset after moving.

7. A seal ring installation tool according to claim 3, characterized in that, The driver includes a pressure rod. One end of the pressure rod is a hinged end and is rotatably connected to the base. The other end of the pressure rod is a driving end. An active rod is provided at the bottom of the push rod. A waist-shaped hole is provided in the middle section of the pressure rod. The active rod is movably connected in the waist-shaped hole. When the pressure rod rotates based on the hinged end, it is used to drive the push rod to perform a linear motion.

8. A sealing ring installation tool according to claim 7, characterized in that, A hinge block is provided at the bottom of the mounting plate, and the hinged end of the pressing rod is rotatably connected to the bottom of the hinge block.

9. The installation tool for a sealing ring according to claim 7, characterized in that, A limiting hole is provided on the bottom plate, and a limiting bolt is threadedly connected in the limiting hole. The limiting bolt is located directly below the pressing rod.

10. A seal ring installation tool according to claim 7, characterized in that, An extension rod is rotatably connected to the driving end of the pressing rod, and a sliding sleeve is sleeved on the pressing rod.

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