CN112664742A - Straight pipe pressure balance type compensator - Google Patents
Straight pipe pressure balance type compensator Download PDFInfo
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- CN112664742A CN112664742A CN202011519202.9A CN202011519202A CN112664742A CN 112664742 A CN112664742 A CN 112664742A CN 202011519202 A CN202011519202 A CN 202011519202A CN 112664742 A CN112664742 A CN 112664742A
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Abstract
The invention belongs to the technical field of pipe fittings, and particularly relates to a straight pipe pressure balance type compensator. The two end pipes are superposed with the axis of the corrugated pipe; the inner surface and the outer surface of the end pipe are circumferential surfaces; the inner surface of the end pipe is fixedly provided with a sealing ring which is superposed with the axis of the end pipe and is matched with the outer surface of the straight pipe; the inner surface of the end pipe is fixedly provided with a limiting ring which is superposed with the axis of the end pipe; the limiting ring is positioned between the sealing ring and the end surface of the end pipe close to the corrugated pipe; the end face of the limiting ring, which is far away from the corrugated pipe, is matched with the end face of the straight pipe; the end pipe is provided with a clamping mechanism; a plurality of tight-suction mechanisms are uniformly arranged on the limiting ring along the circumferential direction of the limiting ring; the straight pipe pressure balance type compensator also comprises a sealing mechanism. When the end pipe of the straight pipe pressure balance type compensator is arranged together with the end part of the straight pipe, the operation is convenient, and the situation that the surface of a threaded column is rusted and stuck is avoided; the invention improves the sealing performance of the straight pipe pressure balance type compensator.
Description
Technical Field
The invention belongs to the technical field of pipe fitting equipment, and particularly relates to a straight pipe pressure balance type compensator.
Background
The pressure balance type compensator for straight pipe is a tool for compensating axial displacement and self-balance of internal pressure thrust in a straight pipe system. The pressure balance compensator for the straight pipe can compensate the thermal expansion difference of the straight pipe caused by different pipe wall temperatures, and reduce the axial load of the straight pipe, thereby reducing the temperature difference stress of the straight pipe and avoiding the strength damage of the straight pipe. The straight pipe pressure balance compensator consists of a corrugated pipe and an end pipe which form a working main body of the straight pipe pressure balance compensator.
The existing straight pipe pressure balance type compensator has the following problems when in use: (1) the end pipe of the straight pipe pressure balance type compensator is connected with the end part of the straight pipe through the flange plate and the screw rods, and the screw rods need to be sequentially screwed down during installation, so that the operation is inconvenient, and the screw rods are blocked on the flange plate once being corroded, and the disassembly is difficult; the contact surface between the end pipe of the straight pipe pressure balance type compensator and the straight pipe generates a gap due to serious corrosion, so that the sealing property of the straight pipe pressure balance type compensator is reduced; (2) the end pipe of the straight pipe pressure balance type compensator is poor in sealing performance with the end part of the straight pipe, and outside air easily permeates into the straight pipe through a gap between the end pipe of the straight pipe pressure balance type compensator and the end part of the straight pipe.
Disclosure of Invention
Technical problem to be solved
The invention provides a straight pipe pressure balance type compensator, aiming at solving the following problems existing in the prior straight pipe pressure balance type compensator when in use: (1) the end pipe of the straight pipe pressure balance type compensator is connected with the end part of the straight pipe through the flange plate and the screw rods, and the screw rods need to be sequentially screwed down during installation, so that the operation is inconvenient, and the screw rods are blocked on the flange plate once being corroded, and the disassembly is difficult; the contact surface between the end pipe of the straight pipe pressure balance type compensator and the straight pipe generates a gap due to serious corrosion, so that the sealing property of the straight pipe pressure balance type compensator is reduced; (2) the end pipe of the straight pipe pressure balance type compensator is poor in sealing performance with the end part of the straight pipe, and outside air easily permeates into the straight pipe through a gap between the end pipe of the straight pipe pressure balance type compensator and the end part of the straight pipe.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
a straight pipe pressure balance type compensator comprises two end pipes which are fixedly connected through a corrugated pipe. The two end pipes are coincident with the axis of the corrugated pipe. The inner and outer surfaces of the end pipe are circumferential surfaces. The inner surface of the end pipe is fixedly provided with a sealing ring which is superposed with the axis of the end pipe and is mutually matched with the outer surface of the straight pipe. The inner surface of the end pipe is fixedly provided with a limit ring which is coincided with the axis of the end pipe. The limiting ring is positioned between the sealing ring and the end surface of the end pipe close to the corrugated pipe. The end face of the limiting ring far away from the corrugated pipe is matched with the end face of the straight pipe. The end pipe is provided with a clamping mechanism. A plurality of suction mechanisms are uniformly arranged on the limiting ring along the circumferential direction of the limiting ring. The straight pipe pressure balance type compensator also comprises a sealing mechanism. When the straight pipe and the end pipe are installed, the straight pipe is directly inserted into the end pipe until the end face of the straight pipe is attached to the end face, far away from the corrugated pipe, of the limiting ring. The outer surface of the straight pipe is clamped through a clamping mechanism, and the end face of the straight pipe is tightly sucked through a tight sucking mechanism.
The clamping mechanism comprises a threaded column, a clamping block, a limiting rod, a limiting groove, a gear column, an installation shaft, a gear, a bevel gear and a bevel gear ring. The number of the thread columns is a plurality of and the thread columns are uniformly arranged along the circumferential direction of the end pipe, and the thread columns radially penetrate through the side wall of the end pipe along the end pipe. And a clamping block matched with the outer surface of the straight pipe is rotatably arranged on the inner end surface of the threaded column. The clamping block is fixedly provided with a limiting rod, and the inner surface of the end pipe is provided with a limiting groove matched with the limiting rod. And a gear column which is coincident with the axis of the threaded column is fixedly arranged on the outer end face of the threaded column. The outer surface of the end pipe is rotatably provided with an installation shaft parallel to the threaded column at a position corresponding to the threaded column. The end part of the mounting shaft is fixedly provided with a gear which is meshed with the gear column. The installation shaft is fixedly provided with a bevel gear. The outer surface of the end pipe is rotatably provided with a bevel gear ring which is superposed with the axis of the end pipe and is mutually meshed with the bevel gear. The bevel gear, the mounting shaft and the gear are driven to synchronously rotate by rotating the bevel gear ring, and the gear drives the gear column and the threaded column to rotate. When the threaded column rotates, the clamping block is pushed to move towards the outer surface of the straight pipe along the direction of the limiting groove under the limiting effect of the limiting rod until the clamping block is attached to the outer surface of the straight pipe, and the outer surface of the straight pipe is clamped.
As a preferable technical scheme of the invention, the sealing ring and the clamping block are both made of deformable rubber materials, so that when the straight pipe radially expands under the influence of temperature, the sealing ring and the clamping block cannot damage the outer surface of the straight pipe.
As a preferred technical scheme of the invention, a plurality of anti-slip strips which are uniformly distributed along the circumferential direction of the straight pipe are uniformly and fixedly arranged on the part, matched with the outer surface of the straight pipe, of the surface of the clamping block, so that the friction force between the clamping block and the outer surface of the straight pipe is improved, and the clamping effect of the clamping block is improved.
As a preferred technical scheme of the invention, a plurality of deflector rods are uniformly and fixedly arranged on the bevel gear ring along the circumferential direction of the bevel gear ring, and the bevel gear ring is rotated through the deflector rods, so that the convenience of operation is improved.
As a preferred technical scheme of the invention, the tight suction mechanism comprises a first through groove, a sealing block, a first connecting rod, a second through groove, a second connecting rod, a connecting plate, an L-shaped plate and a return spring. The first through groove axially penetrates through the limiting ring along the limiting ring and corresponds to the end face of the straight pipe. The first through groove is in sliding fit with a sealing block and a first connecting rod, and the sealing block and the first connecting rod are fixedly connected together. The second through groove axially penetrates through the limiting ring along the limiting ring, and is located between the first through groove and the inner surface of the end pipe. A second connecting rod with an arc-shaped end part is in sliding fit with the second through groove. The end parts of the first connecting rod and the second connecting rod are fixedly connected together through a connecting plate. An L-shaped plate is fixedly arranged on the end face of the limiting ring close to the corrugated pipe. And a return spring is horizontally and fixedly connected between the vertical section of the L-shaped plate and the connecting plate. When the end face of the straight pipe is attached to the end face, far away from the corrugated pipe, of the limiting ring, the first through groove corresponds to the end face of the straight pipe in position. The clamping block is attached to the outer surface of the straight pipe, and the clamping block firstly contacts the end part of the second connecting rod and pushes the second connecting rod to slide towards one side of the corrugated pipe along the second through groove. The second connecting rod drives the first connecting rod to slide towards one side of the corrugated pipe along the first through groove through the connecting plate; the return spring is compressed by the connecting plate. The first connecting rod drives the sealing block to slide towards one side of the corrugated pipe, so that the volume of an area between the sealing block and the end face of the straight pipe is increased, air pressure is reduced, and the straight pipe is tightly sucked on the limiting ring through the action of the air pressure.
As a preferable technical scheme of the invention, the sealing mechanism comprises an annular groove, a first air groove, an air bag, a second air groove, a third air groove, an internal thread sleeve and an external thread rod. The annular groove is formed in the inner surface of the sealing ring and is overlapped with the axis of the sealing ring. The position of the sealing ring corresponding to each mounting shaft is provided with a first air groove communicated with the annular groove. An air bag communicated with the first air groove is fixedly arranged in the annular groove corresponding to each first air groove. The inner surface of the end pipe is provided with a second air groove which is communicated with the first air groove and is coincided with the axis of the mounting shaft at the position corresponding to the first air groove. And a third air groove communicated with the second air groove is formed in the end surface, far away from the corrugated pipe, of the end pipe. An internal thread sleeve is in sliding sealing fit in the second air groove along the axial direction of the second air groove. The inner end of the mounting shaft is fixedly provided with an external thread rod which is coincident with the axis of the mounting shaft. The internal thread sleeve is mutually matched with the external thread rod. The installation axle rotates the in-process and drives the external screw thread pole and rotate, and external screw thread pole drive internal thread cover slides towards first air pocket one side along the second air pocket, and the internal thread cover is crowded the air in second air pocket and the first air pocket into the gasbag. The volume increases after filling in the gasbag to make the atmospheric pressure increase in the ring channel, form the high-pressure gas ring in the ring channel, thereby avoided outside air infiltration straight tube inside, also avoided the inside gas of straight tube to ooze simultaneously, improved the sealing performance of straight tube pressure balance type compensator.
(III) advantageous effects
The invention has at least the following beneficial effects:
(1) the present invention solves the following problems: when the end pipe of the straight pipe pressure balance type compensator is arranged together with the end part of the straight pipe, all the screw rods need to be screwed in sequence, the operation is inconvenient, and the screw rods are blocked on the flange plate once being corroded, so that the disassembly is difficult; the contact surface between the end pipe of the straight pipe pressure balance type compensator and the straight pipe generates a gap due to serious corrosion, so that the sealing property of the straight pipe pressure balance type compensator is reduced; the end pipe of the straight pipe pressure balance type compensator is poor in sealing performance with the end part of the straight pipe, and outside air easily permeates into the straight pipe through a gap between the end pipe of the straight pipe pressure balance type compensator and the end part of the straight pipe.
(2) When the end pipe of the straight pipe pressure balance type compensator is installed together with the end part of the straight pipe, the end part of the straight pipe is directly inserted into the end pipe of the straight pipe pressure balance type compensator, then the bevel gear ring in the clamping mechanism is rotated to drive all the threaded columns to synchronously rotate, and the clamping block is attached to the outer wall of the straight pipe, so that the convenience of operation is improved; and because the contact area of the threaded column and the external air is small, the situation that the threaded column is rusted and stuck on the surface is avoided. According to the invention, the end surface of the straight pipe is tightly sucked through the tight suction mechanism, so that the connection firmness between the straight pipe and the end pipe of the straight pipe pressure balance type compensator is further ensured, and the sealing performance of the straight pipe pressure balance type compensator is improved.
(3) According to the invention, the gap between the inner surface of the end pipe and the outer surface of the straight pipe is sealed by the sealing ring, and the high-pressure air ring positioned in the annular groove is manufactured on the surface of the sealing ring contacting with the straight pipe by the sealing mechanism, so that the external air is prevented from permeating into the straight pipe, the gas in the straight pipe is prevented from seeping out, and the sealing performance of the straight pipe pressure balance type compensator is further improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of an internal structure of a straight pipe pressure balance compensator according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
FIG. 4 is an enlarged schematic view at C of FIG. 1;
FIG. 5 is a cross-sectional view taken along section D-D of FIG. 1;
FIG. 6 is a schematic view of the internal structure of the seal ring according to the embodiment of the present invention.
In the figure: 1-end pipe, 2-corrugated pipe, 3-sealing ring, 4-limiting ring, 5-clamping mechanism, 51-threaded column, 52-clamping block, 53-limiting rod, 54-limiting groove, 55-gear column, 56-mounting shaft, 57-gear, 58-bevel gear, 59-bevel gear ring, 510-driving rod, 6-suction mechanism, 61-first through groove, 62-sealing block, 63-first connecting rod, 64-second through groove, 65-second connecting rod, 66-connecting plate, 67-L-shaped plate, 68-reset spring, 7-sealing mechanism, 71-annular groove, 72-first air groove, 73-air bag, 74-second air groove, 75-third air groove, 76-internal thread sleeve, 77-external screw thread rod.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 6, the present embodiment provides a straight pipe pressure balance compensator, which includes two end pipes 1, and the two end pipes 1 are fixedly connected through a corrugated pipe 2. The two end pipes 1 are coincident with the axis of the corrugated pipe 2. The inner and outer surfaces of the end pipe 1 are circumferential surfaces. The inner surface of the end pipe 1 is fixedly provided with a sealing ring 3 which is coincident with the axis of the end pipe and is matched with the outer surface of the straight pipe. The inner surface of the end pipe 1 is fixedly provided with a limiting ring 4 which is coincided with the axis of the end pipe. The spacing ring 4 is positioned between the sealing ring 3 and the end surface of the end pipe 1 close to the corrugated pipe 2. The end face of the limiting ring 4 far away from the corrugated pipe 2 is matched with the end face of the straight pipe. The end pipe 1 is provided with a clamping mechanism 5. A plurality of tight mechanisms 6 are evenly arranged on the limiting ring 4 along the circumferential direction. The straight pipe pressure balance type compensator also comprises a sealing mechanism 7.
The clamping mechanism 5 comprises a threaded column 51, a clamping block 52, a limiting rod 53, a limiting groove 54, a gear column 55, a mounting shaft 56, a gear 57, a bevel gear 58, a bevel gear ring 59 and a shifting rod 510. The number of the threaded columns 51 is several, the threaded columns 51 are uniformly arranged along the circumferential direction of the end pipe 1, and the threaded columns 51 radially penetrate through the side wall of the end pipe 1 along the end pipe 1. The inner end surface of the threaded column 51 is rotatably provided with a clamping block 52 which is matched with the outer surface of the straight pipe. The clamping block 52 is fixedly provided with a limiting rod 53, and the inner surface of the end pipe 1 is provided with a limiting groove 54 matched with the limiting rod 53. A gear column 55 which is overlapped with the axis of the threaded column 51 is fixedly arranged on the outer end face of the threaded column 51. The outer surface of the end pipe 1 is rotatably provided with a mounting shaft 56 parallel to the threaded column 51 at a position corresponding to the threaded column 51. The end of the mounting shaft 56 is fixedly mounted with a gear 57 which is engaged with the gear post 55. A bevel gear 58 is fixedly mounted on the mounting shaft 56. The outer surface of the end pipe 1 is rotatably provided with a bevel gear ring 59 which is superposed with the axis of the end pipe and is meshed with the bevel gear 58. The bevel gear 58, the mounting shaft 56 and the gear 57 are driven to synchronously rotate by rotating the bevel gear ring 59, and the gear 57 drives the gear column 55 and the threaded column 51 to synchronously rotate. When the threaded column 51 rotates, the clamping block 52 is pushed to move towards the outer surface of the straight pipe along the direction of the limiting groove 54 under the limiting action of the limiting rod 53 until the clamping block 52 is attached to the outer surface of the straight pipe, so that the outer surface of the straight pipe is clamped. A plurality of shifting rods 510 are uniformly and fixedly mounted on the bevel gear ring 59 along the circumferential direction of the bevel gear ring, and the bevel gear ring 59 is rotated through the shifting rods, so that the convenience of operation is improved.
In this embodiment, the sealing ring 3 and the clamping block 52 are made of deformable rubber material, so as to ensure that the sealing ring 3 and the clamping block 52 will not damage the outer surface of the straight pipe when the straight pipe is subjected to radial expansion under the influence of temperature. The even fixed mounting in part that chucking piece 52 surface and straight tube surface mutually supported has a plurality of antislip strip along straight tube circumference evenly arranged to improve the frictional force between chucking piece 52 and the straight tube surface, improve the chucking effect of chucking piece.
The tightening mechanism 6 includes a first through groove 61, a seal block 62, a first connecting rod 63, a second through groove 64, a second connecting rod 65, a connecting plate 66, an L-shaped plate 67, and a return spring 68. The first through groove 61 axially penetrates through the limit ring 4 along the limit ring 4 and corresponds to the end face of the straight pipe. The first through groove 61 is slidably fitted with a sealing block 62 and a first connecting rod 63, and the sealing block 62 and the first connecting rod 63 are fixedly connected together. The second through groove 64 penetrates the retainer ring 4 in the axial direction of the retainer ring 4 and the second through groove 64 is located between the first through groove 61 and the inner surface of the end pipe 1. A second link 65 having an arc-shaped end is slidably fitted in the second through-groove 64. The ends of the first connecting rod 63 and the second connecting rod 65 are fixedly connected together by a connecting plate 66. An L-shaped plate 67 is fixedly arranged on the end surface of the limiting ring 4 close to the corrugated pipe 2. A return spring 68 is horizontally and fixedly connected between the vertical section of the L-shaped plate 67 and the connecting plate 66. When the end face of the straight pipe is attached to the end face, far away from the corrugated pipe 2, of the limiting ring 4, the first through groove 61 corresponds to the end face of the straight pipe. During the process of attaching the clamping block 52 to the outer surface of the straight pipe, the clamping block 52 first contacts the end of the second connecting rod 65 and pushes the second connecting rod 65 to slide along the second through groove 64 toward the corrugated pipe 2 side. The second connecting rod 65 drives the first connecting rod 63 to slide along the first through groove 61 towards one side of the corrugated pipe 2 through the connecting plate 66; the return spring 68 is compressed by the connecting plate 66. The first connecting rod 63 drives the sealing block 62 to slide towards one side of the corrugated pipe 2, so that the volume of the area between the sealing block 62 and the end face of the straight pipe is increased, the air pressure is reduced, and the straight pipe is tightly sucked on the limiting ring 4 through the air pressure.
The sealing mechanism 7 includes an annular groove 71, a first air groove 72, an air bag 73, a second air groove 74, a third air groove 75, an internally threaded sleeve 76, and an externally threaded rod 77. The annular groove 71 opens on the inner surface of the sealing ring 3 and coincides with the axis of the sealing ring 3. A first air groove 72 communicated with the annular groove 71 is formed in the sealing ring 3 at a position corresponding to each mounting shaft 56. An air bag 73 communicated with the first air groove 72 is fixedly arranged in the annular groove 71 corresponding to the position of each first air groove 72. The inner surface of the end pipe 1 corresponding to the first air groove 72 is provided with a second air groove 74 which is communicated with the first air groove 72 and coincides with the axis of the mounting shaft 56. And a third air groove 75 communicated with the second air groove 74 is formed on the end surface of the end pipe 1 far away from the corrugated pipe 2. An internally threaded sleeve 76 is slidably and sealingly engaged in the second air groove 74 in the axial direction thereof. The inner end of the mounting shaft 56 is fixedly mounted with an externally threaded rod 77 coincident with its axis. The internally threaded sleeve 76 is fitted with an externally threaded rod 77. The mounting shaft 56 rotates to drive the external threaded rod 77 to rotate, the external threaded rod 77 drives the internal threaded sleeve 76 to slide along the second air groove 74 towards the first air groove 72, and the internal threaded sleeve 76 pushes the air in the second air groove 74 and the first air groove 72 into the air bag 73. The volume of the inflated air bag 73 is increased, so that the air pressure in the annular groove 71 is increased, and a high-pressure air ring is formed in the annular groove 71, so that the external air is prevented from permeating into the straight pipe, the gas in the straight pipe is prevented from permeating, and the sealing performance of the straight pipe pressure balance type compensator is improved.
In this embodiment, the connection process between the straight pipe pressure balance compensator and the straight pipe is as follows: when the straight pipe and the end pipe 1 are installed, the straight pipe is directly inserted into the end pipe 1 until the end face of the straight pipe is attached to the end face, far away from the corrugated pipe 2, of the limiting ring 4. The bevel gear ring 59 is rotated to drive the clamping block 52 to move towards the outer surface of the straight pipe until the clamping block 52 is attached to the outer surface of the straight pipe, and the outer surface of the straight pipe is clamped. When the clamping block 52 is attached to the outer surface of the straight pipe, the tight suction mechanism 6 sucks the end surface of the straight pipe tightly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A straight pipe pressure balance type compensator is characterized in that: the straight pipe pressure balance type compensator comprises two end pipes (1), and the two end pipes (1) are fixedly connected through a corrugated pipe (2); the two end pipes (1) are overlapped with the axis of the corrugated pipe (2); the inner surface and the outer surface of the end pipe (1) are circumferential surfaces; the inner surface of the end pipe (1) is fixedly provided with a sealing ring (3) which is superposed with the axial line of the end pipe and is matched with the outer surface of the straight pipe; the inner surface of the end pipe (1) is fixedly provided with a limiting ring (4) which is superposed with the axis of the end pipe; the limiting ring (4) is positioned between the sealing ring (3) and the end surface of the end pipe (1) close to the corrugated pipe (2); the end face of the limiting ring (4) far away from the corrugated pipe (2) is matched with the end face of the straight pipe; a clamping mechanism (5) is arranged on the end pipe (1); a plurality of tight-suction mechanisms (6) are uniformly arranged on the limiting ring (4) along the circumferential direction; the straight pipe pressure balance type compensator also comprises a sealing mechanism (7);
the clamping mechanism (5) comprises a threaded column (51), a clamping block (52), a limiting rod (53), a limiting groove (54), a gear column (55), a mounting shaft (56), a gear (57), a bevel gear (58) and a bevel gear ring (59); the number of the threaded columns (51) is a plurality, the threaded columns (51) are uniformly arranged along the circumferential direction of the end pipe (1), and the threaded columns (51) radially penetrate through the side wall of the end pipe (1) along the end pipe (1); a clamping block (52) matched with the outer surface of the straight pipe is rotatably arranged on the inner end surface of the threaded column (51); a limiting rod (53) is fixedly arranged on the clamping block (52), and a limiting groove (54) matched with the limiting rod (53) is formed in the inner surface of the end pipe (1); a gear column (55) which is superposed with the axis of the threaded column (51) is fixedly arranged on the outer end surface of the threaded column; a mounting shaft (56) parallel to the threaded column (51) is rotatably mounted on the outer surface of the end pipe (1) at a position corresponding to the threaded column (51); a gear (57) meshed with the gear column (55) is fixedly arranged at the end part of the mounting shaft (56); a bevel gear (58) is fixedly arranged on the mounting shaft (56); the outer surface of the end pipe (1) is rotatably provided with a bevel gear ring (59) which is superposed with the axis of the end pipe and is meshed with the bevel gear (58).
2. The straight pipe pressure balanced compensator according to claim 1, characterized by: the sealing ring (3) and the clamping block (52) are both made of deformable rubber materials.
3. The straight pipe pressure balanced compensator according to claim 1, characterized by: the surface of the clamping block (52) and the matched part of the outer surface of the straight pipe are uniformly and fixedly provided with a plurality of anti-slip strips which are uniformly distributed along the circumferential direction of the straight pipe.
4. The straight pipe pressure balanced compensator according to claim 1, characterized by: and a plurality of shift levers (510) are uniformly and fixedly arranged on the bevel gear ring (59) along the circumferential direction of the bevel gear ring.
5. The straight pipe pressure balanced compensator according to claim 1, characterized by: the tight suction mechanism (6) comprises a first through groove (61), a sealing block (62), a first connecting rod (63), a second through groove (64), a second connecting rod (65), a connecting plate (66), an L-shaped plate (67) and a return spring (68); the first through groove (61) axially penetrates through the limiting ring (4) along the limiting ring (4) and corresponds to the end face of the straight pipe in position; a sealing block (62) and a first connecting rod (63) are in sliding fit in the first through groove (61), and the sealing block (62) and the first connecting rod (63) are fixedly connected together; the second through groove (64) axially penetrates through the limiting ring (4) along the limiting ring (4), and the second through groove (64) is positioned between the first through groove (61) and the inner surface of the end pipe (1); a second connecting rod (65) with an arc-shaped end part is in sliding fit with the second through groove (64); the ends of the first connecting rod (63) and the second connecting rod (65) are fixedly connected together through a connecting plate (66); an L-shaped plate (67) is fixedly arranged on the end surface of the limiting ring (4) close to the corrugated pipe (2); a return spring (68) is horizontally and fixedly connected between the vertical section of the L-shaped plate (67) and the connecting plate (66).
6. The straight pipe pressure balanced compensator according to claim 1, characterized by: the sealing mechanism (7) comprises an annular groove (71), a first air groove (72), an air bag (73), a second air groove (74), a third air groove (75), an internal thread sleeve (76) and an external thread rod (77); the annular groove (71) is formed in the inner surface of the sealing ring (3) and is overlapped with the axis of the sealing ring (3); a first air groove (72) communicated with the annular groove (71) is formed in the sealing ring (3) at a position corresponding to each mounting shaft (56); an air bag (73) communicated with the first air grooves (72) is fixedly arranged in the annular groove (71) corresponding to the position of each first air groove (72); a second air groove (74) which is communicated with the first air groove (72) and is superposed with the axis of the mounting shaft (56) is formed in the inner surface of the end pipe (1) corresponding to the first air groove (72); a third air groove (75) communicated with the second air groove (74) is formed in the end face, away from the corrugated pipe (2), of the end pipe (1); an internal thread sleeve (76) is in sliding sealing fit along the axial direction of the second air groove (74); the inner end of the mounting shaft (56) is fixedly provided with an external thread rod (77) which is overlapped with the axis of the mounting shaft; the internal threaded sleeve (76) is matched with the external threaded rod (77).
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| CN202011519202.9A CN112664742B (en) | 2020-12-21 | 2020-12-21 | Straight pipe pressure balance type compensator |
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| CN202011519202.9A CN112664742B (en) | 2020-12-21 | 2020-12-21 | Straight pipe pressure balance type compensator |
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| CN112664742B CN112664742B (en) | 2022-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165662A (en) * | 2021-11-24 | 2022-03-11 | 泰州强立金属制品有限公司 | Firm in connection's hose compensator |
| CN114235265A (en) * | 2022-02-23 | 2022-03-25 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
| CN114738585A (en) * | 2022-04-28 | 2022-07-12 | 中国一冶集团有限公司 | Mortise and tenon type pipeline compensation device and construction method thereof |
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| CN211853097U (en) * | 2020-04-08 | 2020-11-03 | 上海宝冶集团有限公司 | Device for plugging pre-buried flexible waterproof sleeve bolt hole |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165662A (en) * | 2021-11-24 | 2022-03-11 | 泰州强立金属制品有限公司 | Firm in connection's hose compensator |
| CN114165662B (en) * | 2021-11-24 | 2022-12-30 | 泰州强立金属制品有限公司 | Firm in connection's hose compensator |
| CN114235265A (en) * | 2022-02-23 | 2022-03-25 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
| CN114738585A (en) * | 2022-04-28 | 2022-07-12 | 中国一冶集团有限公司 | Mortise and tenon type pipeline compensation device and construction method thereof |
| CN114738585B (en) * | 2022-04-28 | 2023-05-16 | 中国一冶集团有限公司 | Mortise and tenon type pipeline compensation device and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN112664742B (en) | 2022-11-18 |
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