Ozone-resistant and mildew-proof rubber sealing pad and construction method thereof

Abstract

The present invention discloses an ozone-resistant and mildew-proof rubber sealing gasket and a construction method thereof, comprising a body, a through hole is provided at the center of the body, connecting holes are distributed on the circumference of the body and pass through the upper and lower ends, the body comprises an outer layer and an inner layer, the inner circumference of the outer layer is provided with an installation cavity, the inner layer matches the installation cavity, the inner layer is glued in the installation cavity, and the connecting holes pass through the outer layer and the inner layer respectively; the method comprises: a, preparation before construction; b, erection of an auxiliary installation device; c, positioning and installation of the sealing gasket; d, loading of the sealing gasket; e, connection of the pipeline and the sealing gasket. The present invention greatly increases the service life of the sealing gasket, reduces the replacement frequency of the sealing gasket, and reduces the maintenance cost.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing equipment, and in particular relates to an ozone-resistant and mildew-proof rubber sealing pad and a construction method thereof. Background Art

[0002] Sealing gaskets are a kind of sealing spare parts used in machinery, equipment, pipelines, and any place where there is fluid. They are used inside and outside to seal. Sealing gaskets are made of metal or non-metallic plate materials through cutting, stamping or cutting processes. They are used for sealing connections between pipelines and between parts of machinery and equipment. According to the material, they can be divided into metal sealing gaskets and non-metallic sealing gaskets. Metal gaskets include copper gaskets, stainless steel gaskets, iron gaskets, aluminum gaskets, etc. Non-metallic gaskets include asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, etc.

[0003] Natural rubber gaskets are often used in existing sewage pipe systems. Although natural rubber gaskets have outstanding high and low temperature resistance, maintain good use elasticity within the temperature range of -70℃—+260℃, and are easy to seal, there are many corrosive substances in sewage pipes. Natural rubber gaskets have poor corrosion resistance and are prone to mildew. In addition, the outer side of the natural rubber gasket is polluted by ozone, which accelerates the aging of the rubber gasket and is prone to cracking, resulting in a short service life. Frequent replacement is required when used in the sewage pipe system, and the maintenance cost is high. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and to provide an ozone-resistant and mildew-proof rubber sealing gasket and a construction method thereof. By setting an installation cavity in the inner circumference of the outer sheath, the inner embedded layer is installed in the installation cavity, and then the outer sheath and the inner embedded layer are glued so that the outer sheath and the inner embedded layer are arranged in one piece. When the sealing gasket is in use, the inner embedded layer mainly contacts the corrosive substances in the sewage pipe, and the outer sheath is exposed to the outside, so that the use of the inner embedded layer will not be affected after the outer sheath is aged and cracked, so that the sealing effect of the sealing gasket will not be reduced, and the outer sheath can also play a sealing role after the inner embedded layer is corroded, thereby greatly increasing the service life of the sealing gasket, reducing the replacement frequency of the sealing gasket, and reducing the maintenance cost. In this method, an installation groove is opened in the foundation pit, which is convenient for the adjustment frame to drive the limit clamp to install the sealing gasket. The clamping plate in the auxiliary installation device is clamped on the flange to fix the auxiliary installation device to avoid the sealing gasket during adjustment and installation. The installation process shakes, which increases the installation accuracy of the gasket, thereby improving the sealing performance of the gasket after it is installed in place. The gasket slides in from one side of the limit clamp, which realizes the rapid assembly of the gasket while preventing the gasket from sliding down. The lateral adjustment of the gasket and the front and rear adjustment of the gasket are adopted to realize high-precision installation of the gasket and at the same time increase the application range of the auxiliary installation device, so that the gasket can be installed for pipes of different sizes. The positioning column is used to drive the rotating frame, and the rotating frame drives the gasket to rotate. Since the mounting hole of the flange does not correspond to the connecting hole on the gasket, and the gravity of the pipeline is large, the adjustment is cumbersome, so the connecting hole and the mounting hole are made to correspond by rotating the gasket. The operation is simple and the positioning is accurate. First, a third threaded rod is inserted between the connecting hole and the mounting hole to fix the position of the gasket. Then, after the auxiliary installation device is withdrawn, the remaining third threaded rod is continued to be installed. The auxiliary installation device can continue to be applicable, thereby reducing the installation cost.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The ozone-resistant and mildew-proof rubber sealing gasket comprises a body, a through hole is provided in the center of the body, and connecting holes are distributed on the circumference of the body and pass through the upper and lower ends. The body is characterized in that the body comprises an outer layer and an inner layer, the inner circumference of the outer layer is provided with an installation cavity, the inner layer matches the installation cavity, the inner layer is glued in the installation cavity, and the connecting holes penetrate the outer layer and the inner layer respectively. The present invention sets the installation cavity in the inner circumference of the outer layer, installs the inner layer in the installation cavity, and then glues the outer layer and the inner layer, so that the outer layer and the inner layer are arranged in one piece. When the sealing gasket is used, the inner layer is mainly in contact with the corrosive substances in the sewage pipe, and the outer layer is exposed to the outside, so that the use of the inner layer will not be affected after the outer layer is aged and cracked, so that the sealing effect of the sealing gasket will not be reduced, and the outer layer can also play a sealing role after the inner layer is corroded, thereby greatly increasing the service life of the sealing gasket, reducing the replacement frequency of the sealing gasket, and reducing the maintenance cost.

[0007] Furthermore, the outer layer is made of ozone-resistant rubber. Ozone pollution is from the outside to the inside. By making the outer layer of ozone-resistant rubber, the ozone resistance of the outer layer is improved, and the outer layer is prevented from being polluted by ozone, so that ozone pollution will not affect the embedded layer, thereby increasing the service life of the body.

[0008] Furthermore, the embedded layer includes an upper rubber layer, a middle rubber layer and a lower rubber layer, wherein the middle rubber layer is sealed and connected between the upper rubber layer and the lower rubber layer, and the middle rubber layer is sealed and connected between the upper rubber layer and the lower rubber layer, so that the upper rubber layer and the lower rubber layer play a protective role on the middle rubber layer.

[0009] Furthermore, the upper rubber layer and the lower rubber layer are both made of mildew-proof rubber, and the middle rubber layer is made of natural rubber. The upper rubber layer and the lower rubber layer are mainly in contact with the corrosive substances in the sewage pipe, so the upper rubber layer and the lower rubber layer are made of mildew-proof rubber, which increases the corrosion resistance of the embedded layer and is not easy to mildew, thereby increasing the service life of the body, and the middle rubber layer is made of natural rubber, which saves costs.

[0010] Furthermore, metal pads are provided between the upper rubber layer and the middle rubber layer, and between the lower rubber layer and the middle rubber layer, which increase the stability of the embedded layer.

[0011] Furthermore, connecting posts are distributed on the top circumference of the lower rubber layer, the connecting posts pass through the middle rubber layer, and limiting grooves are provided at the bottom of the upper rubber layer corresponding to the connecting posts, and the tops of the connecting posts are inserted into the limiting grooves. The connecting posts pass through the middle rubber layer and are inserted into the limiting grooves of the upper rubber layer, thereby realizing a closed connection between the upper rubber layer and the lower rubber layer.

[0012] Furthermore, positioning blocks are distributed around the inner wall of the installation cavity, and positioning grooves are provided on the outer wall of the inner embedded layer, and the positioning blocks match the positioning grooves. Through the matching arrangement of the positioning blocks and the positioning grooves, the inner embedded layer can be positioned and installed in the installation cavity.

[0013] The construction method of the ozone-resistant and mildew-proof rubber sealing pad is characterized by comprising the following steps:

[0014] a. Preparation before construction

[0015] First, excavate the foundation pit, then install the flange on the end of the pipe, and symmetrically install two pipes with flanges into the foundation pit. The installation holes on the two flanges are arranged correspondingly, so that an installation position for installing the sealing gasket is left between the two flanges. Then, installation grooves are opened at the positions corresponding to the installation positions on the two side walls of the foundation pit.

[0016] b. Installation of auxiliary installation devices

[0017] 1) Placement of auxiliary installation devices

[0018] Place the base of the auxiliary installation device on the top edges of both sides of the foundation pit, and adjust the position of the base on the edge so that the adjustment frame is located above the installation station;

[0019] 2) Fixing of auxiliary installation devices

[0020] First, loosen the first nut on the first threaded rod, then move the clamping plate so that the clamping plate is close to one side of the flange, then tighten the first tightening screw on the clamping plate, and then tighten the first nut on both sides of the clamping plate to fix the position of the base;

[0021] c. Positioning and installation of sealing gasket

[0022] 1) Assembly of sealing gasket

[0023] First, slide the sealing gasket into the limiting clamp from one side, so as to assemble the sealing gasket in the limiting clamp located below the adjusting frame, and then screw in the second tightening screw on the rotating frame, so that the second tightening screw presses against the outer wall of the sealing gasket;

[0024] 2) Lateral adjustment of the gasket

[0025] First, loosen the second nuts on both sides of the adjustment column on the first threaded rod, and then move the position of the adjustment column along the first threaded rod, thereby driving the sealing gasket to move horizontally, so that the sealing gasket is consistent with the installation position in the horizontal position, and then tighten the second nuts on both sides of the adjustment column;

[0026] 3) Front and rear adjustment of the gasket

[0027] The adjusting sliding block moves forward and backward in the adjusting hole of the adjusting frame, the sliding block drives the limiting clamp to move forward and backward, and the limiting clamp drives the sealing gasket to move forward and backward, so that the center of the sealing gasket is consistent with the center of the installation station in vertical convenience;

[0028] d. Installing the sealing gasket

[0029] The third nut on the second threaded rod in the adjusting column is loosened, so that the sliders on both sides of the adjusting frame move downward along the second threaded rod, the sliders drive the adjusting frame to move downward, the adjusting frame drives the limit clamp to move downward, the limit clamp moves down to the installation groove, so that the sealing gasket moves down to the installation position, and then the positioning column on the position and the rotating frame is extended, the positioning column is against the flange on the pipe on one side, the positioning column drives the rotating frame to rotate, the rotating frame moves in the slide groove in the limit clamp, and at the same time drives the sealing gasket to rotate in the limit clamp. Since the positioning column corresponds to one of the connecting holes in the sealing gasket, when the positioning column is rotated to the outside of the mounting hole of the flange, the positioning column can be smoothly inserted into the mounting hole, so that the connecting hole of the sealing gasket is connected with the mounting hole of the flange;

[0030] e. Connection between pipe and sealing gasket

[0031] First, insert the third threaded rod into the mounting hole of the flange and the connecting hole of the sealing gasket, then loosen the first tightening screw on the clamping plate, and then loosen the first nut on the first threaded rod, move the clamping rod to both ends of the base respectively, and then move the base to the side where the positioning column is provided, so as to separate the limit clamp from the sealing gasket, and then insert the third threaded rod into the remaining mounting hole of the flange and the connecting hole of the sealing gasket, and then tighten the fourth nut on both sides of the flange.

[0032] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0033] The present invention sets an installation cavity in the inner circumference of the outer covering layer, installs the inner layer in the installation cavity, and then glues the outer covering layer and the inner layer, so that the outer covering layer and the inner layer are set in one piece. When the sealing gasket is in use, the inner layer is mainly in contact with the corrosive substances in the sewage pipe, and the outer covering layer is exposed to the outside, so that the use of the inner layer will not be affected after the outer covering layer is aged and cracked, so that the sealing effect of the sealing gasket will not be reduced, and the outer covering layer can also play a sealing role after the inner layer is corroded, thereby greatly increasing the service life of the sealing gasket, reducing the replacement frequency of the sealing gasket, and reducing the maintenance cost.

[0034] In the present invention, the outer layer is made of ozone-resistant rubber. Ozone pollution is from the outside to the inside. By making the outer layer of ozone-resistant rubber, the ozone resistance of the outer layer is improved, and the outer layer is prevented from being polluted by ozone, so that ozone pollution will not affect the inner layer, thereby increasing the service life of the body.

[0035] In the present invention, both the upper rubber layer and the lower rubber layer are made of mildew-proof rubber, and the middle rubber layer is made of natural rubber. The upper rubber layer and the lower rubber layer are mainly in contact with corrosive substances in the sewage pipe, so the upper rubber layer and the lower rubber layer are made of mildew-proof rubber, which increases the corrosion resistance of the embedded layer and is not easy to mildew, thereby increasing the service life of the body, and the middle rubber layer is made of natural rubber, which saves costs.

[0036] In step a of the present invention, installation grooves are opened on both side walls of the foundation pit corresponding to the installation station to provide operating space on both sides when the auxiliary installation device installs the sealing gasket into the installation station, thereby facilitating the installation of the sealing gasket.

[0037] In step b of the present invention, the base is first placed on the edge, and the position of the base on the edge is moved so that the adjustment frame is located above the installation station, and then the clamping plate is clamped on the flange to fix the base, ensuring that the auxiliary installation device will not shake during the installation of the sealing gasket, thereby improving the installation accuracy of the sealing gasket.

[0038] In step c of the present invention, the sealing gasket slides in from one side of the limiting clamp, thereby achieving rapid assembly of the sealing gasket while preventing the sealing gasket from sliding down. The lateral adjustment of the sealing gasket and the front and rear adjustment of the sealing gasket are adopted to achieve high-precision installation of the sealing gasket, while increasing the application scope of the auxiliary installation device, so that the sealing gasket can be installed for pipes of different sizes.

[0039] In step d of the present invention, a positioning column is used to drive a rotating frame, and the rotating frame drives the sealing gasket to rotate. Since the mounting hole of the flange does not correspond to the connecting hole on the sealing gasket, and the gravity of the pipeline is large, the adjustment is cumbersome. Therefore, the connecting hole is made to correspond to the mounting hole by rotating the sealing gasket, which is simple to operate and accurate in positioning.

[0040] In step e of the present invention, a third threaded rod is first inserted between the connecting hole and the mounting hole to fix the position of the sealing gasket, and then the auxiliary mounting device is withdrawn and the remaining third threaded rod is installed. The auxiliary mounting device can continue to be used, thereby reducing the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] Figure 1 This is a schematic diagram of the structure of the ozone-resistant and mildew-proof rubber sealing pad of the present invention;

[0043] Figure 2 Schematic diagram of the structure of the outer cladding in the present invention;

[0044] Figure 3 It is a schematic diagram of the structure of the embedded layer in the present invention;

[0045] Figure 4It is a schematic diagram of the explosion of the embedded layer in the present invention;

[0046] Figure 5 This is a schematic diagram of the structure of the present invention when the pipeline is installed;

[0047] Figure 6 It is a schematic diagram of the structure of the present invention when the sealing gasket is installed on the limiting clamp;

[0048] Figure 7 It is a structural schematic diagram of the present invention when the sealing gasket is installed at the installation station;

[0049] Figure 8 This is a structural schematic diagram of the present invention when the rotating frame has completed adjusting the sealing gasket position;

[0050] Fig. 9 This is a schematic diagram of the structure of the present invention when the flange and the sealing gasket are connected;

[0051] Fig.10 It is a structural schematic diagram of the auxiliary installation device of the present invention.

[0052] In the figure, 1-main body; 2-through hole; 3-connecting hole; 4-outer covering; 5-embedded layer; 6-installation cavity; 7-upper rubber layer; 8-middle rubber layer; 9-lower rubber layer; 10-metal cushion layer; 11-connecting column; 12-limiting groove; 13-positioning block; 14-positioning groove; 15-foundation pit; 16-pipeline; 17-flange; 18-installation station; 19-installation groove; 20-auxiliary installation device; 21-base; 22-edge; 23-adjusting frame; 24-first threaded rod; 25-first nut; 26-clamping plate; 27-limiting clamp; 28-rotating frame; 29-second tightening screw; 30-adjusting column; 31-second nut; 32-sliding block; 33-adjusting hole; 34-second threaded rod; 35-positioning column; 36-sliding groove; 37-installation hole; 38-third threaded rod; 39-fourth nut. DETAILED DESCRIPTION

[0053] like Figures 1 to 4 As shown, the ozone-resistant and mildew-proof rubber sealing gasket of the present invention includes a body 1, a through hole 2 is provided at the center of the body 1, and connecting holes 3 are distributed on the circumference of the body 1 and pass through the upper and lower ends. The body 1 includes an outer layer 4 and an inner layer 15, and the inner circumference of the outer layer 4 is provided with a mounting cavity 6, the inner layer 15 matches the mounting cavity 6, and the inner layer 15 is glued in the mounting cavity 6, and the connecting holes 3 pass through the outer layer 4 and the inner layer 15 respectively.

[0054] The outer layer 4 is made of ozone-resistant rubber. Ozone pollution is from the outside to the inside. The outer layer 4 is made of ozone-resistant rubber, which improves the ozone resistance of the outer layer 4 and avoids the outer layer 4 from being polluted by ozone, so that ozone pollution will not affect the embedded layer 15, thereby increasing the service life of the body 1.

[0055] The embedded layer 15 includes an upper rubber layer 7, a middle rubber layer 8 and a lower rubber layer 9, wherein the middle rubber layer 8 is sealed and connected between the upper rubber layer 7 and the lower rubber layer 9. The middle rubber layer 8 is sealed and connected between the upper rubber layer 7 and the lower rubber layer 9, so that the upper rubber layer 7 and the lower rubber layer 9 play a protective role for the middle rubber layer 8.

[0056] The upper rubber layer 7 and the lower rubber layer 9 are both made of mildew-proof rubber, and the middle rubber layer 8 is made of natural rubber. The upper rubber layer 7 and the lower rubber layer 9 are mainly in contact with the corrosive substances in the sewage pipe, so the upper rubber layer 7 and the lower rubber layer 9 are made of mildew-proof rubber, which increases the corrosion resistance of the embedded layer and is not easy to mildew, thereby increasing the service life of the body 1, and the middle rubber layer 8 is made of natural rubber, which saves costs.

[0057] Metal cushion layers 10 are provided between the upper rubber layer 7 and the middle rubber layer 8 and between the lower rubber layer 9 and the middle rubber layer 8. The metal cushion layers 10 increase the stability of the embedded layer 15.

[0058] The top circumference of the lower rubber layer 9 is provided with connecting posts 11, which pass through the middle rubber layer 8. The bottom of the upper rubber layer 7 is provided with limiting grooves 12 corresponding to the connecting posts 11, and the tops of the connecting posts 11 are inserted into the limiting grooves 12. The connecting posts 11 pass through the middle rubber layer 8 and are inserted into the limiting grooves 12 of the upper rubber layer 7, thereby realizing the closed connection of the middle rubber layer 8 between the upper rubber layer 7 and the lower rubber layer 9.

[0059] The inner wall of the installation cavity 6 is provided with positioning blocks 13, and the outer wall of the inner embedded layer 15 is provided with positioning grooves 14, and the positioning blocks 13 match the positioning grooves 14. Through the matching arrangement of the positioning blocks 13 and the positioning grooves 14, the inner embedded layer 15 can be positioned and installed in the installation cavity 6.

[0060] like Figures 5 to 10 As shown, the construction method of the ozone-resistant and mildew-proof rubber sealing pad of the present invention comprises the following steps:

[0061] a. Preparation before construction

[0062] First, excavate the foundation pit 15, then install the flange 17 to the end of the pipe 16, and then symmetrically install the two pipes 16 equipped with flanges 17 into the foundation pit 15. The mounting holes 37 on the two flanges 17 are arranged at corresponding positions so that an installation position 18 for installing the sealing gasket is left between the two flanges 17. Then, installation grooves 19 are opened at the positions of the two side walls in the foundation pit 15 corresponding to the installation positions 18.

[0063] b. Installation of auxiliary installation device 20

[0064] 1) Placement of the auxiliary mounting device 20

[0065] The base 21 in the auxiliary installation device 20 is placed on the top edges 22 on both sides of the foundation pit 15 , and the position of the base 21 on the edges 22 is adjusted so that the adjustment frame 23 is located above the installation station 18 .

[0066] 2) Fixing of the auxiliary mounting device 20

[0067] First, loosen the first nut 25 on the first threaded rod 24, then move the clamping plate 26 so that the clamping plate 26 is close to one side of the flange 17, tighten the first tightening screw on the clamping plate 26, and then tighten the first nut 25 on both sides of the clamping plate 26 to fix the position of the base 21.

[0068] c. Positioning and installation of sealing gasket

[0069] 1) Assembly of sealing gasket

[0070] First, slide the sealing gasket from one side of the limiting clamp 27 to assemble the sealing gasket in the limiting clamp 27 below the adjusting frame 23, and then screw in the second tightening screw 29 on the rotating frame 28 so that the second tightening screw 29 presses against the outer wall of the sealing gasket.

[0071] 2) Lateral adjustment of the gasket

[0072] First, loosen the second nuts 31 on both sides of the adjusting column 30 on the first threaded rod 24, and then move the adjusting column 30 along the first threaded rod 24, thereby driving the sealing gasket to move laterally, so that the sealing gasket is consistent with the installation station 18 in the lateral position, and then tighten the second nuts 31 on both sides of the adjusting column 30.

[0073] 3) Front and rear adjustment of the gasket

[0074] The adjusting sliding block 32 moves forward and backward in the adjusting hole 33 of the adjusting frame 23, and the sliding block 32 drives the limiting clamp 27 to move forward and backward, and the limiting clamp 27 drives the sealing gasket to move forward and backward, so that the center of the sealing gasket is vertically consistent with the center of the installation station 18.

[0075] d. Installing the sealing gasket

[0076] The third nut on the second threaded rod 34 in the adjusting column 30 is loosened, so that the sliders on both sides of the adjusting frame 23 move downward along the second threaded rod 34, and the slider drives the adjusting frame 23 to move downward, and the adjusting frame 23 drives the limiting clamp 27 to move downward, and the limiting clamp 27 moves down into the mounting groove 19, so that the sealing gasket moves down into the installation station 18, and then the positioning column 35 on the position and rotating frame 28 is extended, and the positioning column 35 is against the flange 17 located on one side of the pipe 16, and the positioning column 35 drives the rotating frame 28 to rotate, and the rotating frame 28 moves in the sliding groove 36 in the limiting clamp 27, and at the same time drives the sealing gasket to rotate in the limiting clamp 27. Since the positioning column 35 corresponds to one of the connecting holes 3 in the sealing gasket, when the positioning column 35 is rotated to the outside of the mounting hole 37 of the flange 17, the positioning column 35 can be smoothly inserted into the mounting hole, so that the connecting hole 3 of the sealing gasket is connected with the mounting hole 37 of the flange 17.

[0077] e. Connection between pipe 16 and sealing gasket

[0078] First, insert the third threaded rod 37 into the mounting hole 37 of the flange 17 and the connecting hole 3 of the sealing gasket, then loosen the first tightening screw on the clamping plate 26, and then loosen the first nut 25 on the first threaded rod 24, move the clamping rod to the two ends of the base 21 respectively, and then move the base 21 to the side where the positioning column 35 is provided, so as to separate the limit clamp 27 from the sealing gasket, and then insert the third threaded rod 37 into the remaining mounting hole 37 of the flange 17 and the connecting hole 3 of the sealing gasket, and then tighten the fourth nut 39 on both sides of the flange 17.

[0079] The present invention sets an installation cavity 6 in the inner circumference of the outer cladding 4, installs the inner layer 15 into the installation cavity 6, and then glues the outer cladding 4 and the inner layer 15, so that the outer cladding 4 and the inner layer 15 are set in one piece. When the sealing gasket is in use, the inner layer 15 is mainly in contact with the corrosive substances in the sewage pipe, and the outer cladding 4 is exposed to the outside, so that the use of the inner layer 15 will not be affected after the outer cladding 4 is aged and cracked, so that the sealing effect of the sealing gasket will not be reduced, and the outer cladding 4 can also play a sealing role after the inner layer 15 is corroded, thereby greatly increasing the service life of the sealing gasket, reducing the replacement frequency of the sealing gasket, and reducing the maintenance cost; in this method, an installation groove 19 is opened in the foundation pit 15, which is convenient for the adjustment frame 23 to drive the limit clamp 27 to install the sealing gasket, and the clamping plate 26 in the auxiliary installation device 20 is clamped on the flange 17 to fix the auxiliary installation device 20, so as to avoid the shaking of the sealing gasket during the adjustment and installation process, and increase the installation cost of the sealing gasket. The sealing performance after the gasket is installed in place is improved, and the gasket slides into one side of the limit clip 27, so that the gasket can be quickly assembled while preventing the gasket from sliding down. The lateral adjustment of the gasket and the front and rear adjustment of the gasket are adopted to realize the high-precision installation of the gasket. At the same time, the application range of the auxiliary installation device 20 is increased, and the gasket can be installed for pipes 16 of different sizes. The positioning column 35 is used to drive the rotating frame 28, and the rotating frame 28 drives the gasket to rotate. Since the mounting hole 37 of the flange 17 does not correspond to the connecting hole 3 on the gasket, and the gravity of the pipe 16 is large, the adjustment is cumbersome, so the connecting hole 3 is made to correspond to the mounting hole by rotating the gasket, the operation is simple, and the positioning is accurate. First, a third threaded rod 37 is inserted between the connecting hole 3 and the mounting hole to fix the position of the gasket, and then the auxiliary installation device 20 is withdrawn, and the remaining third threaded rod 37 is continued to be installed. The auxiliary installation device 20 can continue to be applicable, which reduces the installation cost.

[0080] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A construction method of an ozone-resistant and mildew-proof rubber sealing gasket, the sealing gasket comprising a body, a through hole is provided at the center of the body, and connecting holes are distributed on the circumference of the body and pass through the upper and lower ends, characterized in that: The body comprises an outer cladding layer and an inner embedded layer, the inner circumference of the outer cladding layer is provided with an installation cavity, the inner embedded layer matches the installation cavity, the inner embedded layer is glued in the installation cavity, and the connection holes penetrate the outer cladding layer and the inner embedded layer respectively; the construction method comprises the following steps: a. Preparation before construction First, excavate the foundation pit, then install the flange on the end of the pipe, and symmetrically install two pipes with flanges into the foundation pit. The installation holes on the two flanges are arranged correspondingly, so that an installation position for installing the sealing gasket is left between the two flanges. Then, installation grooves are opened at the positions corresponding to the installation positions on the two side walls of the foundation pit. b. Installation of auxiliary installation devices 1) Placement of auxiliary installation devices Place the base of the auxiliary installation device on the top edges of both sides of the foundation pit, and adjust the position of the base on the edge so that the adjustment frame is located above the installation station; 2) Fixing of auxiliary installation devices First, loosen the first nut on the first threaded rod, then move the clamping plate so that the clamping plate is close to one side of the flange, then tighten the first tightening screw on the clamping plate, and then tighten the first nut on both sides of the clamping plate to fix the position of the base; c. Positioning and installation of sealing gasket 1) Assembly of sealing gasket First, slide the sealing gasket into the limiting clamp from one side, so as to assemble the sealing gasket in the limiting clamp located below the adjusting frame, and then screw in the second tightening screw on the rotating frame, so that the second tightening screw presses against the outer wall of the sealing gasket; 2) Lateral adjustment of the gasket First, loosen the second nuts on both sides of the adjustment column on the first threaded rod, and then move the position of the adjustment column along the first threaded rod, thereby driving the sealing gasket to move horizontally, so that the sealing gasket is consistent with the installation position in the horizontal position, and then tighten the second nuts on both sides of the adjustment column; 3) Front and rear adjustment of the gasket The adjusting sliding block moves forward and backward in the adjusting hole of the adjusting frame, the sliding block drives the limiting clamp to move forward and backward, and the limiting clamp drives the sealing gasket to move forward and backward, so that the center of the sealing gasket is consistent with the center of the installation station in vertical convenience; d. Installing the sealing gasket The third nut on the second threaded rod in the adjusting column is loosened, so that the sliders on both sides of the adjusting frame move downward along the second threaded rod, the sliders drive the adjusting frame to move downward, the adjusting frame drives the limit clamp to move downward, the limit clamp moves down to the installation groove, so that the sealing gasket moves down to the installation position, and then the positioning column on the position and the rotating frame is extended, the positioning column is against the flange on the pipe on one side, the positioning column drives the rotating frame to rotate, the rotating frame moves in the slide groove in the limit clamp, and at the same time drives the sealing gasket to rotate in the limit clamp. Since the positioning column corresponds to one of the connecting holes in the sealing gasket, when the positioning column is rotated to the outside of the mounting hole of the flange, the positioning column can be smoothly inserted into the mounting hole, so that the connecting hole of the sealing gasket is connected with the mounting hole of the flange; e. Connection between pipe and sealing gasket First, insert the third threaded rod into the mounting hole of the flange and the connecting hole of the sealing gasket, then loosen the first tightening screw on the clamping plate, and then loosen the first nut on the first threaded rod, move the clamping rod to both ends of the base respectively, and then move the base to the side where the positioning column is provided, so as to separate the limit clamp from the sealing gasket, and then insert the third threaded rod into the remaining mounting hole of the flange and the connecting hole of the sealing gasket, and then tighten the fourth nut on both sides of the flange.

2. The construction method of the ozone-resistant and mildew-proof rubber sealing pad according to claim 1, characterized in that: The outer covering layer is made of ozone-resistant rubber.

3. The construction method of the ozone-resistant and mildew-proof rubber sealing pad according to claim 1, characterized in that: The embedded layer includes an upper rubber layer, a middle rubber layer and a lower rubber layer, and the middle rubber layer is sealed and connected between the upper rubber layer and the lower rubber layer.

4. The construction method of the ozone-resistant and mildew-proof rubber sealing pad according to claim 3 is characterized in that: The upper rubber layer and the lower rubber layer are both made of mildew-proof rubber, and the middle rubber layer is made of natural rubber.

5. The construction method of the ozone-resistant and mildew-proof rubber sealing pad according to claim 3, characterized in that: A metal cushion layer is provided between the upper rubber layer and the middle rubber layer, and between the lower rubber layer and the middle rubber layer.

6. The construction method of the ozone-resistant and mildew-proof rubber sealing gasket according to claim 3, characterized in that: The top circumference of the lower rubber layer is distributed with connecting columns, and the connecting columns pass through the middle rubber layer. The bottom of the upper rubber layer is provided with limiting grooves corresponding to the connecting columns, and the tops of the connecting columns are inserted into the limiting grooves.

7. The construction method of the ozone-resistant and mildew-proof rubber sealing pad according to claim 1, characterized in that: Positioning blocks are distributed around the inner wall of the installation cavity, and positioning grooves are arranged on the outer wall of the embedded layer. The positioning blocks match the positioning grooves.

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