High-pressure-resistant axial compensator

Abstract

The utility model discloses a high-pressure-resistant axial compensator, and relates to the technical field of compensators. The high-pressure buffering device comprises a corrugated pipe and a sliding column, an upper flange and a lower flange are fixedly connected to the top and the bottom of the corrugated pipe respectively, an upper sliding block and a lower sliding block are fixedly connected to the side face of the upper flange and the side face of the lower flange respectively, the upper sliding block and the lower sliding block are both in sliding connection with the sliding column, and a high-pressure buffering mechanism is arranged at the top of the lower flange. The high-pressure buffering mechanism is arranged, so that when the whole device is subjected to high-pressure impact, the buffering effect can be achieved through a sliding barrel, a sliding rod, a buffering spring and other assemblies, and the whole device is protected; and through cooperation of a pressure bin, a piston rod, an oil outlet pipe and other assemblies, lubricating oil leaks from an oil leakage groove to lubricate the surface of the sliding rod, and the situation that in the long-term use process, dirt adheres to generate clamping, and the buffering protection effect is affected is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of compensators, and particularly relates to a high-pressure resistant axial compensator. Background Technique

[0002] An axial compensator is a flexible component that connects pipelines, bases, and flexible components at both ends. A common double axial compensator consists of two bellows connected by a middle pipe section and a flexible component composed of a base rigidly connected to the middle section and pipes at both ends.

[0003] The utility model with the publication number CN216520243U discloses a high-pressure resistant double axial compensator, including a body and a connecting body. A clamping component is arranged outside the body. The clamping component includes a top clamp seat fixedly installed on the body. An activity rod is fixedly connected to the outside of the clamp seat. An activity seat is movably connected to the outside of the activity rod. A bolt is fixedly connected to the bottom of the activity seat. A first spring is fixedly connected to the inner cavity of the clamp seat. In the above application document, by setting a protection plate, the body can be effectively protected, and the high-pressure resistant effect is improved. When the connecting plate and the telescopic plate move relatively, it may be stuck due to dirt adhering to the surface of the telescopic plate, which may affect the high-pressure resistant effect of the overall device. Summary of the Invention

[0004] The purpose of the utility model is to provide a high-pressure resistant axial compensator, which solves the existing problems.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a high-pressure resistant axial compensator, including a bellows and a sliding column. Upper and lower flanges are respectively fixedly connected to the top and bottom of the bellows. Upper and lower sliding blocks are respectively fixedly connected to the sides of the upper and lower flanges. Both the upper and lower sliding blocks are slidably connected to the sliding column. A high-pressure buffer mechanism is arranged at the top of the lower flange; the high-pressure buffer mechanism includes a sliding cylinder, a pressure chamber, and a lubricating oil tank. The top of the sliding cylinder is fixedly connected to the bottom of the upper flange. A buffer spring is fixedly connected to the inner top of the sliding cylinder. A sliding rod is slidably connected to the sliding cylinder through the buffer spring. The bottom of the sliding rod is fixedly connected to the top of the lower flange. An oil leakage groove is opened in the inner part of the sliding rod. The bottoms of both the pressure chamber and the lubricating oil tank are fixedly connected to the top of the lower flange. A return spring is arranged inside the pressure chamber. A piston rod is slidably connected to the inside of the pressure chamber through the return spring. The front end and the rear end of the pressure chamber respectively penetrate and are fixedly connected with an oil outlet pipe and an oil suction pipe. One end of the oil suction pipe far away from the pressure chamber penetrates and is fixedly connected with the lubricating oil tank. An anti-rebound mechanism is arranged inside the sliding cylinder.

[0007] Further, one end of the piston rod away from the pressure chamber is close to the bottom of the sliding cylinder. The oil leakage groove is in a cross shape as a whole. When the sliding cylinder moves downward, it will contact the piston rod and drive the piston rod to move downward.

[0008] Further, check valves are arranged inside both the oil outlet pipe and the oil suction pipe. One end of the oil outlet pipe away from the pressure chamber penetrates and is fixedly connected to the oil leakage groove. The check valves in the oil outlet pipe and the oil suction pipe can control the flow direction of the liquid. The oil outlet pipe can discharge the lubricating oil into the oil leakage groove.

[0009] Further, the check valve in the oil outlet pipe is unidirectionally conductive towards the oil leakage groove, and the check valve in the oil suction pipe is unidirectionally conductive towards the inside of the pressure chamber. When the piston rod moves downward, it will squeeze the lubricating oil in the pressure chamber and discharge it through the oil outlet pipe. When a negative pressure is formed in the pressure chamber, it will suck the lubricating oil in the lubricating oil tank into the pressure chamber through the oil suction pipe.

[0010] Further, the anti - rebound mechanism includes a deceleration block and a fixed block. The deceleration block is fixedly connected to the inner wall of the sliding cylinder. The deceleration block is fixedly connected to the sliding rod. A groove is formed at one end of the deceleration block away from the sliding rod. A telescopic spring is arranged inside the groove. An arc - shaped block is slidably connected to the inside of the groove through the telescopic spring.

[0011] Further, the overall shape of the deceleration block is semi - cylindrical, and the material of the deceleration block is rubber. When the semi - circular rubber deceleration block is squeezed against an object, resistance will be generated.

[0012] Further, the arc surface of the arc - shaped block faces upward, and one end of the arc - shaped block away from the telescopic spring is close to the deceleration block. When the arc surface of the arc - shaped block is squeezed, it will move into the groove. When the sliding cylinder drives the deceleration block to move downward, it will contact the arc - shaped block.

[0013] The utility model has the following beneficial effects:

[0014] By setting a high - pressure buffer mechanism, when the whole device is subjected to a high - pressure impact, components such as the sliding cylinder, the sliding rod, and the buffer spring can play a buffering role to protect the whole device. Through the cooperation of components such as the pressure chamber, the piston rod, and the oil outlet pipe, the oil leakage groove will leak out lubricating oil to lubricate the surface of the sliding rod, preventing adhesion of dirt during long - term use and resulting in jamming, which affects the buffering and protection effect.

[0015] By setting an anti - rebound mechanism, when the whole device is subjected to a high - pressure impact and the buffer spring absorbs the impact force and gradually tightens, through the cooperation of components such as the fixed block, the arc - shaped block, and the deceleration block, the speed and amplitude of the subsequent rebound of the buffer spring will be reduced, preventing the buffer spring from rebounding back and forth, and further improving the buffering and shock - absorbing effect.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other accompanying drawings based on these drawings without creative efforts.

[0018] Figure 1 Three-dimensional front view of the overall structure of the present utility model;

[0019] Figure 2 Three-dimensional rear view of the overall structure of the present utility model;

[0020] Figure 3 Three-dimensional schematic diagram of the high-pressure buffer mechanism structure of the present utility model;

[0021] Figure 4 Three-dimensional sectional view of the high-pressure buffer mechanism structure of the present utility model;

[0022] Figure 5 Three-dimensional schematic diagram of the anti-rebound mechanism structure of the present utility model;

[0023] Figure 6 For the present utility model Figure 5 Three-dimensional enlarged view of the structure at position A.

[0024] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0025] 1, bellows; 2, upper flange; 3, lower flange; 4, upper slider; 5, lower slider; 6, sliding column; 7, high-pressure buffer mechanism; 71, sliding cylinder; 72, buffer spring; 73, sliding rod; 74, oil leakage groove; 75, pressure chamber; 76, return spring; 77, piston rod; 78, oil outlet pipe; 79, oil suction pipe; 710, lubricating oil tank; 8, anti-rebound mechanism; 81, deceleration block; 82, fixed block; 83, groove; 84, telescopic spring; 85, arc-shaped block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0027] Please refer toFigures 1-6 , the utility model relates to a high-pressure resistant axial compensator, which comprises a corrugated pipe 1 and a sliding column 6. The top and bottom of the corrugated pipe 1 are respectively fixedly connected with an upper flange 2 and a lower flange 3. The sides of the upper flange 2 and the lower flange 3 are respectively fixedly connected with an upper sliding block 4 and a lower sliding block 5. The upper sliding block 4 and the lower sliding block 5 are both slidably connected with the sliding column 6. A high-pressure buffer mechanism 7 is arranged at the top of the lower flange 3; The high-pressure buffer mechanism 7 comprises a sliding cylinder 71, a pressure chamber 75 and a lubricating oil tank 710. The top of the sliding cylinder 71 is fixedly connected with the bottom of the upper flange 2. A buffer spring 72 is fixedly connected to the inner top of the sliding cylinder 71. The sliding cylinder 71 is slidably connected with a sliding rod 73 through the buffer spring 72. The bottom of the sliding rod 73 is fixedly connected with the top of the lower flange 3. An oil leakage groove 74 is formed in the inner part of the sliding rod 73. The bottoms of the pressure chamber 75 and the lubricating oil tank 710 are both fixedly connected with the top of the lower flange 3. A return spring 76 is arranged inside the pressure chamber 75. A piston rod 77 is slidably connected to the inside of the pressure chamber 75 through the return spring 76. The front end and the rear end of the pressure chamber 75 respectively penetrate and are fixedly connected with an oil outlet pipe 78 and an oil suction pipe 79. One end of the oil suction pipe 79 far away from the pressure chamber 75 penetrates and is fixedly connected with the lubricating oil tank 710. An anti-return mechanism 8 is arranged inside the sliding cylinder 71.

[0028] One end of the piston rod 77 far away from the pressure chamber 75 is close to the bottom of the sliding cylinder 71. The oil leakage groove 74 is in a cross shape as a whole. When the sliding cylinder 71 moves downward, it will contact the piston rod 77 and drive the piston rod 77 to move downward.

[0029] One-way valves are arranged inside both the oil outlet pipe 78 and the oil suction pipe 79. One end of the oil outlet pipe 78 far away from the pressure chamber 75 penetrates and is fixedly connected with the oil leakage groove 74. The one-way valves in the oil outlet pipe 78 and the oil suction pipe 79 can control the flow direction of the liquid. The oil outlet pipe 78 can discharge the lubricating oil into the oil leakage groove 74.

[0030] The one-way valve in the oil outlet pipe 78 is unidirectionally conductive towards the oil leakage groove 74, and the one-way valve in the oil suction pipe 79 is unidirectionally conductive towards the inside of the pressure chamber 75. When the piston rod 77 moves downward, it will squeeze the lubricating oil in the pressure chamber 75 to discharge it through the oil outlet pipe 78. When a negative pressure is formed in the pressure chamber 75, it will suck the lubricating oil in the lubricating oil tank 710 into the pressure chamber 75 through the oil suction pipe 79.

[0031] The anti-return mechanism 8 comprises a deceleration block 81 and a fixed block 82. The deceleration block 81 is fixedly connected to the inner wall of the sliding cylinder 71. The deceleration block 81 is fixedly connected with the sliding rod 73. A groove 83 is formed at one end of the deceleration block 81 far away from the sliding rod 73. A telescopic spring 84 is arranged inside the groove 83. An arc-shaped block 85 is slidably connected to the inside of the groove 83 through the telescopic spring 84.

[0032] The overall shape of the deceleration block 81 is semi-cylindrical, and the material of the deceleration block 81 is rubber. When the semi-circular rubber deceleration block 81 is squeezed by an object, resistance will be generated.

[0033] The arc surface of the arc-shaped block 85 faces upward, and one end of the arc-shaped block 85 away from the telescopic spring 84 is close to the deceleration block 81. When the arc surface of the arc-shaped block 85 is squeezed, it will move into the groove 83. When the sliding cylinder 71 drives the deceleration block 81 to move downward, it will contact the arc-shaped block 85.

[0034] A specific application of this embodiment is as follows: Connect the upper flange 2 and the lower flange 3 to the pipeline to be connected. The upper slider 4 and the lower slider 5 can slide on the sliding column 6, making the telescopic bellows 1 more stable during telescoping. When under high-pressure impact, the lower flange 3 moves downward relative to the upper flange 3, and the downward movement of the lower flange 3 drives the sliding cylinder 71 to move downward. At this time, the buffer spring 72 will absorb the impact force and gradually tighten, playing a role in buffering and protecting. The downward movement of the sliding cylinder 71 will contact the piston rod 77 and drive the piston rod 77 to move downward. The return spring 76 is squeezed and tightened. When the piston rod 77 moves downward, it will squeeze the lubricating oil in the pressure chamber 75 to discharge it through the oil outlet pipe 78. The oil outlet pipe 78 discharges the lubricating oil into the oil leakage groove 74, and the lubricating oil will leak out from the four outlets of the oil leakage groove 74 to the surface of the sliding column 6 for lubrication, preventing the sliding column 6 from adhering to dirt and getting stuck during long-term use, which affects the buffering and protecting effect. When the sliding cylinder 71 then moves upward and leaves the piston rod 77, the return spring 76 rebounds and drives the piston rod 77 to move upward to restore its original position. At this time, a negative pressure will be formed in the pressure chamber 75 to suck the lubricating oil in the lubricating oil tank 710 into the pressure chamber 75 through the oil suction pipe 79, forming a cycle. When the sliding cylinder 71 moves downward, it will drive the deceleration block 81 to move downward. At this time, the deceleration block 81 will contact the arc surface of the arc-shaped block 85, causing the arc-shaped block 85 to be pressed into the groove 83, and not generating excessive extrusion that affects the buffer spring 72's absorption of the impact force. Subsequently, the telescopic spring 84 drives the arc-shaped block 85 to pop out. When the buffer spring 72 rebounds and drives the sliding cylinder 71 to move upward to restore its original position, the deceleration block 81 moves upward and contacts the straight surface of the arc-shaped block 85. At this time, the deceleration block 81 will generate extrusion with the straight surface of the arc-shaped block 85, and at this time, resistance will be generated to reduce the speed and amplitude of the subsequent rebound of the buffer spring 72, preventing the buffer spring 72 from rebounding back and forth, and further improving the buffering and shock-absorbing effect.

[0035] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An axially-type high-pressure resistant compensator, comprising a corrugated pipe (1) and a sliding column (6), characterized in that: The top and bottom of the corrugated pipe (1) are fixedly connected with an upper flange (2) and a lower flange (3) respectively. The sides of the upper flange (2) and the lower flange (3) are fixedly connected with an upper slider (4) and a lower slider (5) respectively. The upper slider (4) and the lower slider (5) are both slidably connected with a sliding column (6). A high-pressure buffer mechanism (7) is arranged on the top of the lower flange (3). The high-pressure buffer mechanism (7) includes a sliding cylinder (71), a pressure chamber (75) and a lubricating oil tank (710). The top of the sliding cylinder (71) is fixedly connected with the bottom of the upper flange (2). A buffer spring (72) is fixedly connected to the inner top of the sliding cylinder (71). A sliding rod (73) is slidably connected to the sliding cylinder (71) through the buffer spring (72). The bottom of the sliding rod (73) is fixedly connected with the top of the lower flange (3). An oil leakage groove (74) is formed inside the sliding rod (73). The bottoms of the pressure chamber (75) and the lubricating oil tank (710) are both fixedly connected with the top of the lower flange (3). A return spring (76) is arranged inside the pressure chamber (75). A piston rod (77) is slidably connected to the inside of the pressure chamber (75) through the return spring (76). The front end and the rear end of the pressure chamber (75) respectively penetrate and are fixedly connected with an oil outlet pipe (78) and an oil suction pipe (79). The end of the oil suction pipe (79) far away from the pressure chamber (75) penetrates and is fixedly connected with the lubricating oil tank (710). An anti-rebound mechanism (8) is arranged inside the sliding cylinder (71).

2. The high-pressure resistant axial compensator according to claim 1, characterized in that, One end of the piston rod (77) far away from the pressure chamber (75) is close to the bottom of the sliding cylinder (71). The oil leakage groove (74) is integrally cross-shaped.

3. The high-pressure resistant axial compensator according to claim 2, wherein, One-way valves are arranged inside both the oil outlet pipe (78) and the oil suction pipe (79). The end of the oil outlet pipe (78) far away from the pressure chamber (75) penetrates and is fixedly connected with the oil leakage groove (74).

4. The high-pressure resistant axial compensator according to claim 3, characterized in that, The one-way valve in the oil outlet pipe (78) is unidirectionally conductive towards the oil leakage groove (74), and the one-way valve in the oil suction pipe (79) is unidirectionally conductive towards the inside of the pressure chamber (75).

5. The high-pressure resistant axial compensator according to claim 4, characterized in that, The anti-rebound mechanism (8) includes a deceleration block (81) and a fixed block (82). The deceleration block (81) is fixedly connected to the inner wall of the sliding cylinder (71). The deceleration block (81) is fixedly connected with the sliding rod (73). A groove (83) is formed at one end of the deceleration block (81) far away from the sliding rod (73). A telescopic spring (84) is arranged inside the groove (83). An arc-shaped block (85) is slidably connected to the inside of the groove (83) through the telescopic spring (84).

6. The high-pressure resistant axial compensator according to claim 5, characterized in that, The overall shape of the deceleration block (81) is semi-cylindrical, and the material of the deceleration block (81) is rubber material.

7. The high-pressure resistant axial compensator according to claim 6, characterized in that, The arc surface of the arc-shaped block (85) faces upwards, and one end of the arc-shaped block (85) far away from the telescopic spring (84) is close to the deceleration block (81).

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