Bidirectional compensation device for casing pipe

Abstract

The utility model relates to the technical field of compensators, and discloses a sleeve bidirectional compensation device which comprises a front connecting disc, a rear connecting disc and a positioning pipe body, and a first short-circuit expansion pipe and a second short-circuit expansion pipe are arranged at the front end and the rear end of the positioning pipe body. The left side and the right side of the positioning pipe body are provided with two installation frames fixed to the front connecting disc and the rear connecting disc respectively, the installation frames are provided with supporting rod mechanisms, and the two supporting rod mechanisms on the same side of the positioning pipe body are provided with limiting adjusting mechanisms. The expansion joint is simple in structure and wide in applicability, the first short-circuit expansion pipe and the second short-circuit expansion pipe on the positioning pipe body are connected with the front connecting disc and the rear connecting disc, multiple sections of pipe bodies are formed, the stability of the whole compensator is guaranteed, meanwhile, multi-direction small-range adjustment can be achieved, the supporting rod mechanism is matched with the limiting adjusting mechanism, and the supporting rod mechanism is convenient to adjust. The requirements of different working environments can be met, the overall stability of the device when the device deals with stress changes in multiple directions is effectively enhanced, and displacement of different angles and different axial directions is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compensators, and particularly relates to a sleeve two-way compensation device. Background Art

[0002] The sleeve compensator is an important device for solving the deformation of pipelines caused by temperature changes or mechanical vibrations. The existing sleeve compensators generally include a corrugated pipe and a series of accessories such as end pipes, brackets, flanges, and conduits connected thereto. As the core component, the corrugated pipe can absorb the dimensional changes of the pipeline caused by thermal expansion and contraction through its own elastic deformation. However, most of the compensators on the market are designed to provide telescopic ability only in the axial direction of the pipeline, so they mainly compensate for the axial displacement in a single direction.

[0003] The problem in the prior art is that when facing more complex spatial displacement requirements or when it is necessary to cope with stress changes in multiple directions, the existing sleeve compensators often cannot meet the requirements. Especially when the pipeline undergoes small-angle adjustments or non-axial displacements, the existing compensators usually cannot provide effective solutions. This limitation restricts the application of compensators in a wider range of working conditions and may cause unnecessary damage or reduced efficiency in the operation of the pipeline system. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sleeve two-way compensation device with wide applicability and capable of meeting multiple axial displacements for the above problems.

[0005] To achieve the above purpose, the utility model discloses a sleeve two-way compensation device, which includes a front connection disk and a rear connection disk. A positioning pipe body is arranged between the front connection disk and the rear connection disk. Its structural feature is that a first short connection expansion pipe and a second short connection expansion pipe respectively connected to the front connection disk and the rear connection disk are arranged at the front and rear ends of the positioning pipe body. Two mounting frames respectively fixed on the inner end surfaces of the front connection disk and the rear connection disk are arranged on the left and right sides of the positioning pipe body. A strut mechanism extending out of the upper and lower sides of the mounting frame is hinged to the outer end of the mounting frame. Limiting and adjusting mechanisms for connecting the two strut mechanisms are respectively arranged at the upper and lower ends of the two strut mechanisms on the same side of the positioning pipe body.

[0006] After adopting the above structure, the first short connection expansion pipe and the second short connection expansion pipe arranged at the front and rear ends of the positioning pipe body are connected to the front connection disk and the rear connection disk, forming multiple pipe bodies. While ensuring the stability of the overall compensator, it can also achieve small-range adjustment in multiple directions. The strut mechanism arranged on the mounting frame cooperates with the limiting and adjusting mechanism to connect the front connection disk and the rear connection disk together, which can meet the requirements of different working environments, effectively enhance the overall stability of the device when coping with stress changes in multiple directions, and realize displacements at different angles and different axials.

[0007] Preferably, the mounting bracket includes two strip plates arranged at intervals in the left - right direction, and each strip plate is arranged vertically. A plurality of strip openings corresponding to the strip plates one by one and penetrating the disc body are provided on the inner end faces of the front connection disc and the rear connection disc. The size of the strip openings is adapted to the thickness and width of the strip plates. The inner ends of the two strip plates of the mounting bracket are fixed in the strip openings. By passing the two strip plates of the mounting bracket through the body of the front connection disc or the rear connection disc and fixing them, the stability of the mounting bracket is stronger and it is not easily deformed.

[0008] Preferably, both the first short - circuit expansion tube and the second short - circuit expansion tube are corrugated tubes, and the two corrugated tubes have the same size and are adapted to the diameter of the positioning tube body. The front and rear ends of the first short - circuit expansion tube are respectively fixed on the rear end face of the front connection disc and the front end face of the positioning tube body. The front and rear ends of the second short - circuit expansion tube are respectively fixed on the rear end face of the positioning tube body and the front end face of the rear connection disc. By respectively arranging the first short - circuit expansion tube and the second short - circuit expansion tube at both ends of the positioning tube body, small - angle or multi - axial adjustment of the tube body at the front connection disc or the rear connection disc can be achieved.

[0009] Preferably, the strut mechanism includes a hinge base hinged between the two strip plates of the mounting bracket. Insertion grooves are respectively arranged on the upper end face and the lower end face of the hinge base along the length direction of the hinge base. A support rod is arranged in the insertion groove, and threaded holes perpendicular to the axis of the rod body are arranged on the rod body of the support rod inserted into the insertion groove. Fixing bolts passing through the outer wall of the hinge base at the insertion groove and screwed on the support rod are arranged on the hinge base. The multi - component composition of the strut mechanism can facilitate the maintenance and replacement by the staff.

[0010] Preferably, the limit adjustment mechanism includes limit ear plates rotatably connected to the ends of the strut mechanism. Through holes corresponding to each other are arranged on the front and rear two limit ear plates at the same horizontal height. A reset adjustment rod passing through the two limit ear plates is arranged on the two through holes corresponding to each other front and rear. Through the mutual cooperation of the strut mechanism and the limit adjustment mechanism, the requirements of different working environments can be met, effectively enhancing the overall stability of the device when coping with stress changes in multiple directions and realizing adjustments at different angles and different axes.

[0011] Preferably, the reset adjustment rod includes a threaded column passing through the two limit ear plates. Limit nuts are arranged at both ends of the threaded column at the outer end faces of the two limit ear plates. A reset spring sleeved on the threaded column and clamped on the inner end faces of the two limit ear plates is arranged. The setting of the reset adjustment rod can ensure the tension of the first short - circuit expansion tube and the second short - circuit expansion tube in different working states, effectively avoiding the damage of the first short - circuit expansion tube and the second short - circuit expansion tube and improving the service life.

[0012] Preferably, a rotating connection seat cooperating with the support rod mechanism is fixedly connected to the end of the limit ear plate. The rotating connection seat includes a hinge column fixedly connected to the limit ear plate. A circular stopper is arranged at the outer end of the hinge column along the horizontal direction. An installation groove cooperating with the circular stopper is arranged on the support rod on the outer end face of the support rod mechanism. Threads are arranged on the outer wall at the installation groove. A fixing cover body is sleeved on the hinge column and is clamped between the limit ear plate and the circular stopper and is screwed on the support rod. The rotational connection between the limit ear plate and the support rod mechanism can effectively adapt to the displacement of the front connection plate and the rear connection plate in the relative left - right direction.

[0013] Preferably, the fixing cover body is a circular cover body screwed on the outer end of the support rod, and a circular opening matching the diameter of the hinge column is arranged on the outer end face of the circular cover body.

[0014] Preferably, hinge shafts are arranged at the outer ends of the two strip - shaped plates of the mounting frame and pass through the two strip - shaped plates and the middle plate body of the hinge base along the horizontal direction.

[0015] In summary, the beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and has a wide range of applicability. The first short - joint expansion tube and the second short - joint expansion tube arranged at the front and rear ends of the positioning tube body are connected to the front connection plate and the rear connection plate. While ensuring the stability of the overall compensator, multiple sections of the tube body can also achieve small - range adjustment in multiple directions. The support rod mechanism arranged on the mounting frame cooperates with the limit adjustment mechanism to connect the front connection plate and the rear connection plate together, which can meet the requirements of different working environments, effectively enhance the overall stability of the device when coping with stress changes in multiple directions, and achieve displacements at different angles and different axial directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the top - view structural schematic diagram of the present utility model when one - side limit adjustment mechanism is removed;

[0018] Figure 3 is Figure 1 the enlarged structural schematic diagram of the rotating connection seat at A in

[0019] Figure 4 is Figure 1 the enlarged structural schematic diagram of the hinge base at B in

[0020] In the figure: 1, front connection plate; 2, rear connection plate; 3, positioning tube body; 4, first short connection expansion tube; 5, second short connection expansion tube; 6, mounting bracket; 7, support rod mechanism; 8, limit adjustment mechanism; 9, strip-shaped opening; 10, hinged base; 11, insertion slot; 12, support rod; 13, threaded hole; 14, fixing bolt; 15, limit ear plate; 16, through hole; 17, reset adjustment rod; 18, threaded column; 19, limit nut; 20, reset spring; 21, rotating connection seat; 22, hinged column; 23, circular stopper; 24, mounting groove; 25, fixing cover body; 26, circular opening; 27, hinge shaft. Detailed implementation manners

[0021] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0023] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0024] The following is a description of the preferred embodiments of the present utility model in conjunction with the drawings.

[0025] Figure 1 and Figure 2As shown in the figure, the utility model includes a front connection disk 1 and a rear connection disk 2. A positioning tube body 3 is arranged between the front connection disk 1 and the rear connection disk 2. A first short connection expansion tube 4 and a second short connection expansion tube 5 which are respectively connected to the front connection disk 1 and the rear connection disk 2 are arranged at the front and rear ends of the positioning tube body 3. In design, both the first short connection expansion tube 4 and the second short connection expansion tube 5 are corrugated tubes, and the sizes of the two corrugated tubes are the same and are adapted to the diameter of the positioning tube body 3. During production, the front and rear ends of the first short connection expansion tube 4 are respectively fixed on the rear end face of the front connection disk 1 and the front end face of the positioning tube body 3, while the front and rear ends of the second short connection expansion tube 5 are respectively fixed on the rear end face of the positioning tube body 3 and the front end face of the rear connection disk 2. In this way, by respectively arranging the first short connection expansion tube 4 and the second short connection expansion tube 5 at both ends of the positioning tube body 3 and matching them with the front connection disk 1 and the rear connection disk 2, small-angle or multi-axial adjustment of the tube body at the front connection disk 1 or the rear connection disk 2 can be achieved.

[0026] Figure 1 and Figure 2 As shown in the figure, in a preferred embodiment of the utility model, two mounting frames 6 which are respectively fixed on the inner end faces of the front connection disk 1 and the rear connection disk 2 are arranged on the left and right sides of the positioning tube body 3. Among them, the mounting frames 6 on the front connection disk 1 and the rear connection disk 2 are arranged oppositely, and the front and rear two mounting frames 6 have the same horizontal height and are located in the same vertical plane. In design, each mounting frame 6 includes two strip-shaped plates which are arranged at intervals in the left-right direction and each strip-shaped plate is arranged in the vertical direction. Usually, a plurality of strip-shaped openings 9 which correspond to the strip-shaped plates one by one and penetrate the disk body are arranged on the inner end faces of the front connection disk 1 and the rear connection disk 2. The size of the strip-shaped opening 9 is adapted to the thickness and the plate width of the strip-shaped plate. The inner ends of the two strip-shaped plates of the mounting frame 6 are fixed in the strip-shaped opening 9. In this way, by passing the two strip-shaped plates of the mounting frame 6 through the body of the front connection disk 1 or the rear connection disk 2 and welding and fixing them, the stability of the mounting frame 6 can be stronger and it is not easy to deform.

[0027] Figure 1 and Figure 2 and Figure 4As shown in the figure, in another preferred embodiment of the present utility model, a strut mechanism 7 extending beyond the upper and lower sides of the mounting frame 6 is hinged at the outer end of the mounting frame 6. The strut mechanism 7 includes a hinge base 10 hinged between the two plates of the mounting frame 6. Insertion grooves 11 are respectively provided on the upper end face and the lower end face of the hinge base 10 along the length direction of the hinge base 10. At the same time, a support rod 12 is provided in the insertion groove 11, and a threaded hole 13 perpendicular to the axis of the rod body is provided on the rod body of the support rod 12 inserted into the insertion groove 11. A fixing bolt 14 passing through the hinge base 10 and screwed onto the support rod 12 is further provided on the outer wall of the hinge base 10 at the insertion groove 11. In design, the structure of the hinge base 10 usually uses a rectangular block, and the notch of the insertion groove 11 is circular and adapted to the cross-sectional size of the support rod 12. Such a multi-component composition method of the strut mechanism 7 can facilitate the maintenance and replacement by the staff. Of course, during production, a hinge shaft 27 is provided at the outer ends of the two plates of the mounting frame 6, passing horizontally through the two plates and the middle plate of the hinge base 10. The hinge base 10 is hinged between the two plates of the mounting frame 6 through the hinge shaft 27, so as to realize the front-back swing of the upper and lower parts of the hinge base 10.

[0028] Figure 1 and Figure 2 As shown in the figure, in a specific embodiment of the present utility model, a limit adjustment mechanism 8 for connecting the two strut mechanisms 7 is respectively provided at the upper and lower ends of the two strut mechanisms 7 on the same side of the positioning pipe body 3. The limit adjustment mechanism 8 includes a limit ear plate 15 rotatably connected to the end of the strut mechanism 7. Through holes 16 corresponding to each other are provided on the front and rear two limit ear plates 15 at the same horizontal height. A reset adjustment rod 17 passing through the two limit ear plates 15 is provided on the two front and rear corresponding through holes 16. In design, the reset adjustment rod 17 includes a threaded column 18 passing through the two limit ear plates 15. Limit nuts 19 are provided at both ends of the threaded column 18 at the outer end faces of the two limit ear plates 15. At the same time, a reset spring 20 sleeved on the threaded column 18 and clamped on the inner end faces of the two limit ear plates 15 is also provided. In this way, the front-back interval between the front connection disk 1 and the rear connection disk 2 can be controlled through the reset adjustment rod 17. At the same time, the tension of the first short-circuit expansion tube 4 and the second short-circuit expansion tube 5 under different working states can be ensured, and the stress received during the front-back displacement of the front connection disk 1 and the rear connection disk 2 can be dispersed, effectively avoiding the damage of the first short-circuit expansion tube 4 and the second short-circuit expansion tube 5 and improving the service life.

[0029] Figure 1 and Figure 3As shown in the figure, in another specific embodiment of the present utility model, a rotating connection seat 21 cooperating with the strut mechanism 7 is fixedly connected to the end of the limit ear plate 15. The rotating connection seat 21 includes a hinge column 22 welded to the limit ear plate 15. A circular stopper 23 is arranged at the outer end of the hinge column 22 in the horizontal direction. At the same time, an installation groove 24 cooperating with the circular stopper 23 is also arranged on the support rod 12 on the outer end face of the strut mechanism 7. The above-mentioned circular stopper 23 rotates axially in the installation groove 24. Threads are arranged on the outer wall at the installation groove 24, and a fixing cover 25 sleeved on the hinge column 22 and clamped between the limit ear plate 15 and the circular stopper 23 and screwed on the support rod 12 is provided. Through the rotating connection seat 21, the rotation of the limit ear plate 15 on the support rod 12 can effectively adapt to the displacement of the front connection disk 1 and the rear connection disk 2 in the relative left and right directions. The fixing cover 25 is usually a circular cover structure screwed on the outer end of the support rod 12. A circular opening 26 matching the diameter of the hinge column 22 and restricting the hinge column 22 is arranged on the outer end face of the circular cover. In this way, through the mutual cooperation of the strut mechanism 7 and the limit adjustment mechanism 8, the requirements of different working environments can be met, and the overall stability of the device in response to stress changes in multiple directions can be effectively enhanced, and adjustments in different angles and different axial directions can be realized.

[0030] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A casing bidirectional compensation device, comprising a front connection plate (1) and a rear connection plate (2), wherein a positioning tube body (3) is arranged between the front connection plate (1) and the rear connection plate (2), and characterized in that: The front and rear ends of the positioning tube body (3) are provided with a first short-circuit expansion tube (4) and a second short-circuit expansion tube (5) respectively connected to the front connecting plate (1) and the rear connecting plate (2); the left and right sides of the positioning tube body (3) are provided with two mounting frames (6) respectively fixed to the inner end surface of the front connecting plate (1) and the inner end surface of the rear connecting plate (2); the outer ends of the mounting frames (6) are hinged with support rod mechanisms (7) extending from the upper and lower sides of the mounting frames (6); and the upper and lower ends of the two support rod mechanisms (7) on the same side of the positioning tube body (3) are respectively provided with limit adjustment mechanisms (8) connecting the two support rod mechanisms (7).

2. The casing bidirectional compensation device according to claim 1, characterized in that: The mounting frame (6) comprises two strip plates arranged at intervals in the left-right direction and each strip plate is arranged in the vertical direction. The inner end surfaces of the front connecting plate (1) and the rear connecting plate (2) are provided with a plurality of strip openings (9) corresponding to the strip plates one by one and penetrating the plate body. The size of the strip openings (9) is adapted to the thickness and width of the strip plates. The inner ends of the two strip plates of the mounting frame (6) are fixed in the strip openings (9).

3. The casing bidirectional compensation device according to claim 1, characterized in that: The first short-circuit expansion tube (4) and the second short-circuit expansion tube (5) are both corrugated tubes and have the same size and are adapted to the diameter of the positioning tube body (3). The front and rear ends of the first short-circuit expansion tube (4) are respectively fixedly connected to the rear end surface of the front connection plate (1) and the front end surface of the positioning tube body (3), and the front and rear ends of the second short-circuit expansion tube (5) are respectively fixedly connected to the rear end surface of the positioning tube body (3) and the front end surface of the rear connection plate (2).

4. The casing bidirectional compensation device according to claim 1, characterized in that: The support rod mechanism (7) comprises a hinged base (10) hinged between two shaped plates of the mounting frame (6); an insertion groove (11) is respectively provided on the upper end surface and the lower end surface of the hinged base (10) along the length direction of the hinged base (10); a support rod (12) is provided in the insertion groove (11); and a threaded hole (13) perpendicular to the central axis of the rod body is provided on the rod body of the support rod (12) inserted into the insertion groove (11); and a fixing bolt (14) is provided on the outer wall of the hinged base (10) at the insertion groove (11) and passes through the hinged base (10) and is screwed to the support rod (12).

5. The casing bidirectional compensation device according to claim 1, characterized in that: The limit adjustment mechanism (8) comprises a limit ear plate (15) rotatably connected to the end of the support rod mechanism (7), and two front and rear limit ear plates (15) located at the same horizontal height are provided with mutually corresponding through holes (16), and the two front and rear mutually corresponding through holes (16) are provided with a reset adjustment rod (17) passing through the two limit ear plates (15).

6. The casing bidirectional compensation device according to claim 5, characterized in that: The reset adjustment rod (17) comprises a threaded column (18) passing through the two limiting ear plates (15), and limiting nuts (19) located at the outer end surfaces of the two limiting ear plates (15) are provided at both ends of the threaded column (18). A reset spring (20) clamped on the inner end surfaces of the two limiting ear plates (15) is sleeved on the threaded column (18).

7. The casing bidirectional compensation device according to claim 5, characterized in that: The end of the limiting ear plate (15) is fixedly connected to a rotating connection seat (21) that matches the support rod mechanism (7). The rotating connection seat (21) includes a hinge column (22) fixedly connected to the limiting ear plate (15). The outer end of the hinge column (22) is provided with a circular stopper (23) arranged in the horizontal direction. The support rod (12) at the outer end surface of the support rod mechanism (7) is provided with a mounting groove (24) that matches the circular stopper (23). The outer wall of the mounting groove (24) is provided with a thread. The hinge column (22) is sleeved with a fixed cover body (25) that is clamped between the limiting ear plate (15) and the circular stopper (23) and is screwed to the support rod (12).

8. The casing bidirectional compensation device according to claim 7, characterized in that: The fixed cover body (25) is a circular cover body that is screwed onto the outer end of the support rod (12), and a circular opening (26) that matches the diameter of the hinge column (22) is provided on the outer end surface of the circular cover body.

9. The casing bidirectional compensation device according to claim 4, characterized in that: The outer ends of the two shaped plates of the mounting frame (6) are provided with hinge shafts (27) that pass through the two shaped plates and the middle plate body of the hinged base (10) in a horizontal direction.

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