Sealing element replacement device convenient to install

Abstract

The utility model discloses a sealing element replacement device convenient to install, and relates to the technical field of sealing element replacement, the sealing element replacement device convenient to install comprises an installation frame and a sealing channel arranged on the installation frame, one end of the sealing channel is used for being communicated with an installation hole, and the other end of the sealing channel extends towards the side away from the installation hole. And the mounting frame is tightened on the machine body by the linear piece. The oil gas ball valve has the effects that the work of drilling connecting holes in a machine body is reduced, the labor intensity of workers is reduced, and the production cycle of the oil gas ball valve is shortened.

Description

Technical Field

[0001] The present application relates to the field of seal replacement technology, and in particular to a seal replacement device that is easy to install. Background Art

[0002] A ball valve is a shut-off valve widely used in the field of fluid control. Its opening and closing parts are spheres, which can be opened and closed by rotating 90 degrees. Ball valves have the advantages of low fluid resistance, good sealing performance, and easy operation, so they are widely used in various industrial pipelines. In terms of the sealing performance of ball valves, sealing grease plays a vital role. It can adhere tightly to the sealing surface of the ball valve to form an effective sealing layer, which can not only prevent gas or liquid leakage, but also play a lubricating role.

[0003] In the related art, a ball valve for oil and gas includes a valve body, a ball core and a valve stem. The valve body is usually divided into two half valve bodies, and the two half valve bodies are locked and fixed by fasteners for easy assembly. A medium channel is formed in the valve body, the ball core is located in the valve body and in the middle of the medium channel, one end of the valve stem is fixed to the ball core, and the side of the valve stem away from the ball core passes through the valve body, the valve stem is rotatably connected to the valve body, and an open flow channel is opened through the ball core, and the direction of the open flow channel is perpendicular to the axis of the valve stem. The valve body is provided with valve seats on both sides of the valve core, and each valve seat is tightly pressed between the ball core and the valve body. Among them, a grease injection hole is also opened on the valve body from the outside to the inside, and the grease injection hole is connected to the valve seat and is used to inject sealing grease into the gap between the ball core and the valve seat. In order to reduce the occurrence of gas or liquid leakage, a seal is inserted into the grease injection hole on the side outside the valve body. The seal is usually threadedly connected to the side wall of the grease injection hole, and the seal often adopts a one-way valve. A non-circular bayonet is provided on the side of the seal close to the outer port of the grease injection hole.

[0004] At present, in order to facilitate the replacement of seals after aging, connection holes are often opened around the grease injection hole during the production of the valve body. When replacing the seal, the mounting frame is fixed on the valve body through the combination of bolts and the connection holes. A sealing channel is provided on the mounting frame. One end of the sealing channel is connected to the grease injection hole. A valve is provided in the middle of the sealing channel. A sliding member is provided in the sealing channel for sliding and rotating. The sliding member is provided with an adapter head for detachably connecting the seal and matching with the non-circular bayonet. When replacing the seal, the sealing channel is opened or closed by controlling the valve, and the sliding member can slide and rotate relative to the sealing channel so that the adapter head is stuck in the non-circular bayonet, thereby uninstalling and replacing the seal.

[0005] However, ball valves for oil and gas are relatively large in size and are often equipped with multiple grease injection holes, which requires drilling more connecting holes, resulting in high labor intensity and prolonged production cycles, so there is room for improvement. Utility Model Content

[0006] In order to improve the problem in the related art that a large number of connection holes need to be drilled on the valve body, which has high labor intensity and prolongs the production cycle, the present application provides a seal replacement device that is easy to install.

[0007] The present application provides a seal replacement device that is easy to install, which adopts the following technical solution:

[0008] A seal replacement device that is easy to install includes a mounting frame and a sealing channel arranged on the mounting frame, one end of the sealing channel is used to connect to the mounting hole, and the other end of the sealing channel extends toward the side away from the mounting hole; and also includes a linear member, which fastens the mounting frame to the machine body.

[0009] By adopting the above technical solution, the mounting frame is fastened to the machine body by a linear member so that one end of the sealing channel is connected to the mounting hole, thereby completing the installation of the sealing replacement device, helping to reduce the work of drilling connecting holes on the machine body, reducing the labor intensity of the staff, and shortening the production cycle of the ball valve for oil and gas.

[0010] Preferably, the linear member comprises a first cable tie.

[0011] By adopting the above technical solution, the linear member is set as the first cable tie, and the cable tie is relatively wide, thereby increasing the contact area between the linear member and the mounting frame, which helps to improve the stability of the mounting frame installed on the machine body.

[0012] Preferably, the mounting frame is provided with an attachment body, the sealing channel is provided on the attachment body, the mounting frame is provided with an avoidance hole, and the sealing channel is used to communicate with one end of the mounting hole and pass through the avoidance hole;

[0013] The mounting frame is also provided with a first sealing ring, which is arranged around the avoidance hole and is tightly arranged between the attachment body and the machine body.

[0014] By adopting the above technical solution, a first sealing ring is provided between the attachment body and the body, which helps to reduce the leakage of oil and gas through the sealing channel and the mounting hole.

[0015] Preferably, the first sealing ring is partially embedded in the attachment body.

[0016] The adoption of the above technical solution helps to improve the stability of the first sealing ring.

[0017] Preferably, the mounting frame is further provided with an adjusting bolt on the peripheral side of the attachment body, the adjusting bolt penetrates the mounting frame from the side of the mounting frame away from the machine body toward the side of the machine body and is threadedly connected to the mounting frame, and the end of the adjusting bolt abuts against the machine body.

[0018] By adopting the above technical solution, in actual use, the adjusting bolt is rotated, and the end of the adjusting bolt abuts against the machine body, so that the angle of the mounting frame can be adjusted.

[0019] Preferably, the adjusting bolts are arranged in a plurality of groups at intervals on the mounting frame, each group of adjusting bolts includes a plurality of adjusting bolts arranged at intervals, and the attachment body is located between two groups of adjusting bolts.

[0020] By adopting the above technical solution, on the one hand, the multiple groups of adjusting bolts work together to help improve the range of angle adjustment of the mounting frame. On the other hand, when the machine body is located on a curved surface around the mounting hole, the mounting frame and the two groups of adjusting bolts located on opposite sides of the attachment straddle the machine body, which helps to improve the stability of the mounting frame installed on the machine body.

[0021] Preferably, a cushion block is provided at the interval between the mounting frame and the machine body, the cushion block is pressed tightly between the mounting frame and the machine body, and the linear member includes a second tie, which fastens the mounting frame on one side of the cushion block to the machine body.

[0022] By adopting the above technical solution, the mounting frame is supported by the cushion block, and the mounting frame is fastened by the second cable tie, which helps to improve the stability of the mounting frame.

[0023] Preferably, the sealing channel includes a first channel and a second channel, the mounting frame is provided with a first base member and a second base member, the first base member is fixedly connected to the mounting frame, the first channel is provided on the first base member, one end of the first channel is used to communicate with the mounting hole, the first base member is further provided with an opening and closing member for opening and closing the first channel, the second base member is detachably connected to the first base member, the second channel is provided on the second base member, and the second channel is communicated with the other end of the first channel;

[0024] A sliding member is provided in the sealing channel for sliding and rotating, and an adapting head for detachably connecting the sealing member and adapting to the non-circular bayonet is provided on the sliding member.

[0025] By adopting the above technical solution, when the seal is unloaded, the end of the first channel away from the second channel is connected to the mounting hole, and the opening and closing member opens the sealing channel; at this time, the sliding member can be slid relative to the sealing channel, so that the adapter head on the sliding member enters the mounting hole, and the adapter head is snapped into the non-circular bayonet, so that the adapter head and the seal are stably connected; then, the sliding member can be rotated, the seal is screwed out of the mounting hole and the sliding member is slid to the side away from the mounting hole, and the seal is pulled to the side of the opening and closing member away from the mounting hole. During this process, the sliding member can block the leakage of the fluid; finally, the sealing channel is closed by the opening and closing member, and the second base member is removed from the mounting frame, and the seal can be separated from the adapter head and the seal can be removed.

[0026] When installing the replacement seal, insert the adapter head into the non-circular bayonet of the seal, and install the second base member on the mounting frame; then, open the first channel through the opening and closing member, at this time, the second channel, the first channel and the mounting hole are connected, and the sliding member can be slid toward the mounting hole so that the seal passes through the mounting hole. During this process, the sliding member can block the leakage of the fluid; then, rotate the sliding member and screw the seal into the mounting hole to complete the replacement of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a partial explosion diagram of a ball valve structure for oil and gas in the related art;

[0028] Figure 2 It is a schematic diagram of a sealing structure in the related art;

[0029] Figure 3 This is a schematic diagram of the embodiment 1 mainly showing the state in which the seal replacement device which is easy to install is installed on the machine body;

[0030] Figure 4 This is a schematic diagram mainly showing the structure of the mounting frame, the first base member and the second base member in the first embodiment;

[0031] Figure 5 This is a schematic diagram mainly showing the structure of the first base member and the second base member in the first embodiment;

[0032] Figure 6 This is a cross-sectional view mainly showing the control rod and the spherical structure of the first embodiment;

[0033] Figure 7 This is an exploded view of the control rod and the adapter structure of the first embodiment;

[0034] Figure 8 This is an exploded view of the sealing channel and the opening and closing component structure of the second embodiment.

[0035] Figure numerals: 1, mounting frame; 11, avoidance hole; 12, adjusting bolt; 2, fixing assembly; 21, linear member; 22, cushion block; 3, first base member; 31, first channel; 32, shut-off ball valve; 321, first sealing ring; 33, opening and closing member; 331, sphere; 34, stabilizing frame; 341, locking screw; 342, limiting nut; 4, second base member; 41, second channel; 411, first limiting ring; 42, connecting pipe; 421, second sealing ring; 4 22. air vent; 43. connecting frame; 431. slot; 432. connecting hole; 433. pressure relief hole; 5. sealing channel; 6. sliding member; 61. control rod; 611. second limit ring; 612. third sealing ring; 7. adapter head; 71. mounting hole; 711. compression spring; 712. pressing ball; 8. pressure relief component; 81. pressure relief bolt; 9. opening and closing component; 100. machine body; 110. mounting hole; 120. sealing member; 130. non-circular bayonet. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] In the related art, see Figure 1 and Figure 2 A body 100 is provided with a mounting hole 110 , a sealing member 120 is provided in the mounting hole 110 , the sealing member 120 is threadedly connected to the mounting hole 110 , and a non-circular bayonet 130 is provided on one side of the sealing member 120 close to the outer end of the mounting hole 110 .

[0038] In one embodiment, the body 100 is a valve body of a ball valve for oil and gas, the mounting hole 110 is a grease injection hole, the sealing member 120 is a one-way valve, and the non-circular bayonet 130 on the one-way valve is configured as a hexagonal hole.

[0039] The embodiment of the present application discloses a seal replacement device that is easy to install.

[0040] Embodiment 1:

[0041] Reference Figure 3 and Figure 4 , a seal replacement device that is easy to install, includes a mounting frame 1 and a fixing assembly 2 for fixing the mounting frame 1 to a machine body 100. The mounting frame 1 is in the shape of a rectangular plate, and an attachment body is provided on the mounting frame 1, and the attachment body includes a first base member 3 and a second base member 4. The first base member 3 is fixed to the middle of the mounting frame 1, and a first channel 31 is provided on the first base member 3. The first channel 31 is perpendicular to the mounting frame 1, and one end of the first channel 31 is a butt end and is used to connect to the mounting hole 110. The first base member 3 is also provided with an opening and closing member 33 for opening and closing the first channel 31; the second base member 4 is detachably connected to the first base member 3, and a second channel 41 is provided on the second base member 4 (see Figure 5), the second channel 41 is connected to the end of the first channel 31 away from the butt end and is coaxial with the first channel 31. The first channel 31 and the second channel 41 constitute a sealing channel 5, in which a sliding member 6 is provided for sliding and rotating, and an adapter head 7 for detachably connecting the sealing member 120 and matching with the non-circular bayonet 130 is provided on the side of the sliding member 6 facing the butt end of the first channel 31.

[0042] Specifically, see Figure 4 and Figure 5 The middle of the mounting frame 1 is provided with an avoidance hole 11. In this embodiment, the first base member 3 is a shutoff ball valve 32 (see Figure 6 ), the first channel 31 is the flow channel of the valve body of the intercepting ball valve 32, the opening and closing member 33 is the ball 331 of the intercepting ball valve 32, and the ball 331 is located in the middle of the first channel 31. The side of the valve body of the intercepting ball valve 32 away from the second base member 4 passes through the avoidance hole 11, that is, the first channel 31 passes through the avoidance hole 11. At the same time, the side of the intercepting ball valve 32 away from the second base member 4 is provided with a first sealing ring 321, the first sealing ring 321 is arranged around the axis of the first channel 31, and the part of the first sealing ring 321 close to the valve body of the intercepting ball valve 32 is embedded in the valve body of the intercepting ball valve 32.

[0043] In other embodiments, the first base member 3 may also be a gate valve, the first channel 31 is a flow channel of the gate valve body, and the opening and closing member 33 is a gate of the gate valve. The side of the gate valve body away from the second base member 4 passes through the avoidance hole 11, that is, the first channel 31 passes through the avoidance hole 11, and the first sealing ring 321 is embedded in the gate valve body near the gate valve body.

[0044] See also Figure 3 and Figure 5 The fixing assembly 2 includes a linear member 21, and the linear member 21 includes a first cable tie and a second cable tie. The first cable tie and the second cable tie are used to fasten the mounting frame 1 to the machine body 100. The first cable tie and the second cable tie can be provided in multiple pieces, so as to be able to fasten the mounting frame 1. In this embodiment, the linear member 21 is preferably a nylon belt. When the mounting plate is partially spaced from the machine body 100, a cushion block 22 can be provided at the space between the mounting frame 1 and the machine body 100, and then the linear member 21 is used to fasten the mounting frame 1 on the side of the cushion block 22 to the machine body 100, so as to ensure the normal installation and stability of the mounting frame 1 on the machine body 100.

[0045] In order to ensure the coaxiality and stability between the first passage 31 and the mounting hole 110, the mounting frame 1 is further provided with an adjusting bolt 12 on the peripheral side of the intercepting ball valve 32. The adjusting bolt 12 penetrates the mounting frame 1 from the side of the mounting frame 1 away from the machine body 100 toward the side of the machine body 100 and is threadedly connected with the mounting frame 1. The end of the adjusting bolt 12 abuts against the machine body 100. In addition, a group of adjusting bolts 12 is provided on both sides of the mounting frame 1 in the width direction. Each group of adjusting bolts 12 includes two adjusting bolts 12 arranged at intervals along the length direction of the mounting frame 1, and the first base member 3 is located at the two groups of adjusting bolts 12.

[0046] In actual use, the shutoff ball valve 32 can be opened (see Figure 6 ), and insert the rod into the mounting hole 110; then, install the mounting frame 1 and the shutoff ball valve 32, and make the rod pass through the first channel 31, at this time, the first channel 31 and the mounting hole 110 are coaxial under the action of the rod; then, the mounting frame 1 is fastened to the body 100 by the linear member 21, and the first sealing ring 321 is pressed against the valve body of the shutoff ball valve 32 and the body 100 and sealed between the mounting hole 110 and the first channel 31, wherein the mounting frame 1 can be raised by the cushion block 22; finally, rotate each adjusting bolt 12 so that each adjusting bolt 12 is pressed against the outer wall of the body 100, and the rod can be pulled out, thereby realizing the installation of the mounting frame 1 and the shutoff ball valve 32 on the body 100.

[0047] See also Figure 5 and Figure 6The second base member 4 includes a connecting pipe 42 and a connecting frame 43. The second channel 41 is formed in the connecting pipe 42, and the connecting frame 43 is fixed to a side of the connecting pipe 42 close to the shutoff ball valve 32. The end of the connecting pipe 42 close to the shutoff ball valve 32 is stepped, and the end of the connecting pipe 42 close to the shutoff ball valve 32 penetrates into the valve body of the shutoff ball valve 32 and is located at the port of the first channel 31. The end of the connecting pipe 42 close to the shutoff ball valve 32 is sleeved with a second sealing ring 421, and the second sealing ring 421 is tightly pressed between the connecting pipe 42 and the valve body of the shutoff ball valve 32. A stabilizing frame 34 is fixed on the valve body of the intercepting ball valve 32. The stabilizing frame 34 is provided with a locking screw 341. One end of the locking screw 341 is hinged to the stabilizing frame 34. A slot 431 is provided along the second channel 41 on the connecting frame 43. The locking screw 341 is inserted into the slot 431. The end of the locking screw 341 is threadedly connected with a limiting nut 342. The limiting nut 342 presses the connecting frame 43 onto the stabilizing frame 34. In addition, one locking screw 341 is provided on each of the two sides of the stabilizing frame 34 located in the radial direction of the first channel 31. Both the slot 431 and the limiting nut 342 correspond to the locking screw 341 one by one. In actual installation, the connecting pipe 42 is inserted into the valve body of the shut-off ball valve 32 at one end of the connecting frame 43, and the connecting frame 43 is made to abut against the stabilizing frame 34; then, the two locking screws 341 can be rotated so that the two locking screws 341 are respectively embedded in the two slots 431; then, the two limit nuts 342 are tightened to press the connecting frame 43 onto the stabilizing frame 34.

[0048] See also Figure 6 and Figure 7 The sliding member 6 is a control rod 61, and the control rod 61 passes through the sealing channel 5. The inner wall of the second channel 41 away from the intercepting ball valve 32 is fixed with a first limiting ring 411. The middle part of the control rod 61 is fixed with a second limiting ring 611. The second limiting ring 611 is located in the sealing channel 5, and the outer diameter of the second limiting ring 611 is greater than the inner diameter of the first limiting ring 411. A third sealing ring 612 is sleeved on the second limiting ring 611, and the inner side of the third sealing ring 612 is embedded in the second limiting ring 611, and the third sealing ring 612 is tightly pressed against the side wall of the second channel 41 and the second limiting ring 611. In this embodiment, the diameters of the flow channels of the first channel 31 and the ball 331 of the intercepting ball valve 32 are not less than the diameter of the second channel 41. Preferably, the diameters of the flow channels of the first channel 31 and the ball 331 of the intercepting ball valve 32 are equal to the diameter of the second channel 41. At the same time, in order to facilitate the control rod 61 to slide in the sealing channel 5, a vent hole 422 connecting the outside and the second channel 41 is opened on the side of the connecting pipe 42 away from the shut-off ball valve 32. The vent hole 422 is located on the side of the second limiting ring 611 close to the shut-off ball valve 32.

[0049] The adapter head 7 is fixed to the end of the control rod 61. A seating hole 71 is provided on the adapter head 7, and the mounting hole 110 is arranged radially along the control rod 61. An elastic member and a damping member are embedded in the seating hole 71. The elastic member is a compression spring 711, and the damping member is a pressing ball 712. The pressing ball 712 is located on the side of the compression spring 711 close to the opening of the seating hole 71, and the spherical surface of the pressing ball 712 serves as a guiding surface for guiding the pressing ball 712 to enter the non-circular bayonet 130. The side wall of the opening of the seating hole 71 can be deformed by extrusion, so that the diameter of the opening of the seating hole 71 is smaller than the diameter of the pressing ball 712, thereby preventing the pressing ball 712 from escaping from the opening. When a hexagonal opening is provided on the sealing member 120, the adapter head 7 is hexagonal and is adapted to the hexagonal opening on the sealing member 120.

[0050] See also Figure 4 and Figure 6 In order to ensure the stability of the second base member 4 when unloading, a connecting hole 432 is provided on the connecting frame 43. The axis of the connecting hole 432 is perpendicular to the axis of the second channel 41, and one end of the connecting hole 432 is connected to the second channel 41. A pressure relief component 8 is also provided on the connecting frame 43. The pressure relief component 8 includes a pressure relief bolt 81. The pressure relief bolt 81 penetrates into the connecting hole 432 from the side of the connecting hole 432 away from the second channel 41 and is threadedly connected to the connecting hole 432. A pressure relief hole 433 is also provided on the connecting frame 43. One end of the pressure relief hole 433 is connected to the middle of the connecting hole 432, and the other end of the pressure relief hole 433 is connected to the outside of the connecting frame 43. When unloading the second base member 4, the pressure relief bolt 81 can be loosened first, and the second channel 41 can be slowly depressurized, and then the second base member 4 can be unloaded, so as to reduce the occurrence of injuries caused by high pressure when unloading the second base member 4.

[0051] The implementation principle of a seal replacement device that is easy to install in the embodiment of the present application is as follows:

[0052] During installation, the shutoff ball valve 32 can be opened and a rod can be inserted into the mounting hole 110; then, the mounting frame 1 and the shutoff ball valve 32 are installed, and the rod is passed through the first channel 31. At this time, the first channel 31 and the mounting hole 110 are coaxial under the action of the rod; then, the mounting frame 1 is fastened to the body 100 through the linear member 21, and the first sealing ring 321 is pressed between the valve body of the shutoff ball valve 32 and the body 100 and seals between the mounting hole 110 and the first channel 31, wherein the spacer 2 can be used to seal the first channel 31. 2. The mounting frame 1 is raised; then, each adjusting bolt 12 is rotated so that each adjusting bolt 12 abuts against the outer wall of the body 100 and the rod can be pulled out; finally, the connecting pipe 42 is inserted into the valve body of the shut-off ball valve 32 at one end of the connecting frame 43 so that the connecting frame 43 abuts against the stabilizing frame 34, and the two locking screws 341 are rotated so that the two locking screws 341 are respectively embedded in the two card grooves 431, and the two limit nuts 342 are tightened to press the connecting frame 43 onto the stabilizing frame 34.

[0053] When the seal 120 is uninstalled, the control rod 61 can be pushed to make the adapter head 7 on the control rod 61 enter the installation hole 110, so that the adapter head 7 is stuck in the non-circular bayonet 130. At the same time, under the guidance of the spherical surface of the pressing ball 712, the pressing ball 712 will compress the compression spring 711. After the pressing ball 712 enters the non-circular bayonet 130, the compression spring 711 presses the pressing ball 712 tightly against the side wall of the non-circular bayonet 130 to ensure the stability of the connection between the adapter head 7 and the seal 120. Then , the control rod 61 can be rotated to screw the seal 120 out of the mounting hole 110; then, the control rod 61 is slid toward the side away from the mounting hole 110, and the seal 120 is pulled to the side of the ball 331 away from the mounting hole 110; then, the sealing channel 5 is closed by the ball 331, the pressure relief bolt 81 is loosened, and the second channel 41 is slowly relieved of pressure; finally, the second base member 4 is removed from the mounting frame 1, and the seal 120 can be separated from the adapter head 7, and the seal 120 is removed.

[0054] When installing the replacement seal 120, insert the adapter head 7 into the non-circular bayonet 130 of the seal 120, and install the second base member 4 on the mounting frame 1; then, tighten the pressure relief bolt 81, open the shut-off ball valve 32, and the first channel 31 is opened. At this time, the second channel 41, the first channel 31 and the mounting hole 110 are connected, and the control rod 61 can be slid toward the mounting hole 110 so that the seal 120 penetrates the mounting hole 110; then, rotate the control rod 61 to screw the seal 120 into the mounting hole 110, and the replacement of the seal 120 is completed.

[0055] Embodiment 2:

[0056] See also Figure 8 The difference between this embodiment and the first embodiment is that the inner wall of the second channel 41 on the side away from the first base member 3 does not have a first limit ring 411, and the control rod 61 can be inserted into or withdrawn from the second channel 41 from the end of the second channel 41 away from the first base member 3. An opening and closing component 9 for opening and closing the first channel 31 is provided on the first base member 3, and the opening and closing component 9 can be any one of a ball valve, a gate valve, etc.

[0057] It should be noted that, in this embodiment, the first base member 3 is not the intercepting ball valve 32 described in the first embodiment, and the first base member 3 may be a general pipeline, in which the first channel 31 is formed; the first base member 3 may also be a block having the first channel 31. Meanwhile, in other embodiments, the first base member 3 and the second base member 4 may be integrated, and the first channel 31 and the second channel 41 are continuous and uninterrupted.

[0058] When the seal 120 is uninstalled, the control rod 61 can be pushed to allow the adapter head 7 on the control rod 61 to enter the installation hole 110, so that the adapter head 7 is stuck in the non-circular bayonet 130. At the same time, under the guidance of the spherical surface of the pressing ball 712, the pressing ball 712 will compress the compression spring 711. After the pressing ball 712 enters the non-circular bayonet 130, the compression spring 711 presses the pressing ball 712 tightly against the side wall of the non-circular bayonet 130 to ensure the stability of the connection between the adapter head 7 and the seal 120. Then, The control rod 61 is rotated to unscrew the seal 120 out of the mounting hole 110; then, the control rod 61 is slid toward the side away from the mounting hole 110, and the seal 120 is pulled to the side of the opening and closing component 9 away from the mounting hole 110; then, the sealing channel 5 is closed by the opening and closing component 9, and the pressure relief bolt 81 is loosened to relieve the pressure on the second channel 41; finally, the control rod 61 and the seal 120 are withdrawn from the second channel 41, and the seal 120 can be separated from the adapter head 7 and the seal 120 is removed.

[0059] When installing the replacement seal 120, insert the adapter head 7 into the non-circular bayonet 130 of the seal 120, and insert the seal 120 and the control rod 61 into the second channel 41; then, tighten the pressure relief bolt 81, open the sealing channel 5 through the opening and closing component 9, and the first channel 31 is opened. At this time, the second channel 41, the first channel 31 and the mounting hole 110 are connected, and the control rod 61 can be slid toward the mounting hole 110 so that the seal 120 penetrates the mounting hole 110; then, rotate the control rod 61 to screw the seal 120 into the mounting hole 110, and the replacement of the seal 120 is completed.

[0060] It should be pointed out that in order to reduce the possibility of the control rod 61 and the seal 120 being rushed out of the sealing channel 5 by the high-pressure fluid, a certain pressure should be applied to the control rod 61 before the seal 120 is screwed out of the mounting hole 110 and the pressure on the sealing channel 5 is relieved, and between opening the sealing channel 5 and screwing the replacement seal 120 into the mounting hole 110, so as to offset the thrust of the high-pressure fluid on the seal 120.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing replacement device that is easy to install, comprising a mounting frame (1) and a sealing channel (5) arranged on the mounting frame (1), one end of the sealing channel (5) being used to communicate with a mounting hole (110), and the other end of the sealing channel (5) extending toward a side away from the mounting hole (110), characterized in that: It also includes a linear member (21), wherein the linear member (21) fastens the mounting frame (1) to the machine body (100).

2. A seal replacement device that is easy to install according to claim 1, characterized in that: The linear member (21) comprises a first cable tie.

3. The seal replacement device that is easy to install according to claim 1, characterized in that: The mounting frame (1) is provided with an attachment body, the sealing channel (5) is provided on the attachment body, the mounting frame (1) is provided with an avoidance hole (11), and one end of the sealing channel (5) used for communicating with the mounting hole (110) passes through the avoidance hole (11); The mounting frame (1) is also provided with a first sealing ring (321), the first sealing ring (321) being arranged around the avoidance hole (11), and the first sealing ring (321) being tightly arranged between the attachment body and the machine body (100).

4. The seal replacement device that is easy to install according to claim 3, characterized in that: The first sealing ring (321) is partially embedded in the attachment body.

5. The seal replacement device that is easy to install according to claim 1, characterized in that: The mounting frame (1) is also provided with an adjusting bolt (12) on the peripheral side of the attachment body, the adjusting bolt (12) penetrates the mounting frame (1) from the side of the mounting frame (1) facing away from the machine body (100) towards the side of the machine body (100) and is threadedly connected to the mounting frame (1), and the end of the adjusting bolt (12) abuts against the machine body (100).

6. The seal replacement device that is easy to install according to claim 5, characterized in that: The adjusting bolts (12) are arranged in multiple groups at intervals on the mounting frame (1), each group of adjusting bolts (12) comprises multiple adjusting bolts (12) arranged at intervals, and the attachment body is located between two groups of adjusting bolts (12).

7. The seal replacement device that is easy to install according to claim 1, characterized in that: A cushion block (22) is provided at the interval between the mounting frame (1) and the machine body (100), the cushion block (22) being pressed tightly between the mounting frame (1) and the machine body (100), and the linear member (21) comprises a second tie, the second tie tying the mounting frame (1) on one side of the cushion block (22) to the machine body (100).

8. The seal replacement device that is easy to install according to claim 1, characterized in that: The sealing channel (5) comprises a first channel (31) and a second channel (41); the mounting frame (1) is provided with a first base member (3) and a second base member (4); the first base member (3) is fixedly connected to the mounting frame (1); the first channel (31) is provided on the first base member (3); one end of the first channel (31) is used to communicate with the mounting hole (110); the first base member (3) is further provided with an opening and closing member (33) for opening and closing the first channel (31); the second base member (4) is detachably connected to the first base member (3); the second channel (41) is provided on the second base member (4); and the second channel (41) is communicated with the other end of the first channel (31); A sliding member (6) is provided in the sealing channel (5) so as to slide and rotate, and an adapting head (7) is provided on the sliding member (6) for detachably connecting the sealing member (120) and adapting to the non-circular bayonet (130).

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