Hinge type compensator capable of absorbing thrust

Abstract

The invention relates to the technical field of compensators, in particular to a hinge type compensator capable of absorbing thrust, which comprises a first end pipe and a second end pipe which coaxially slide, the first end pipe and the second end pipe form the compensator, one side of the inner wall of the first end pipe coaxially extends and is connected with an inner pipe, one end of the second end pipe is coaxially and fixedly connected with a corrugated pipe, and the corrugated pipe surrounds the inner pipe. The inner pipe slides relative to the inner wall of the second end pipe, the length of the inner pipe blocks and covers the joint of the second end pipe and the corrugated pipe, two supporting pieces are symmetrically arranged on the outer wall of the first end pipe and the outer wall of the second end pipe, the outer walls of the first end pipe and the second end pipe are staggered from the supporting pieces, and four absorbing pieces are evenly arranged on the outer walls of the first end pipe and the second end pipe. Through cooperation of the limiting piece and the absorbing piece and a one-way blocking mechanism of the spring piece and the wedge block, it is ensured that the bolt can only rotate in the screwing direction, connection looseness caused by pipeline vibration is effectively prevented, failure of a thread pair under alternating loads is avoided, and the reliability of equipment under high-pressure and high-temperature working conditions is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compensators, in particular to a hinge type compensator capable of absorbing thrust. BACKGROUND

[0002] The hinge type compensator is an elastic compensation device connecting the bellows and the end pipe through a hinge mechanism, mainly used for absorbing angular displacement or transverse displacement in the pipeline system. The core structure includes a bellows, a hinge plate, a pin shaft and a balance ring (part of the models contain a universal ring), which realizes displacement compensation through the rotation characteristics of the hinge, and converts the blind plate force (thrust) generated by the pressure in the pipeline into shear force and bending moment of the hinge rod, avoiding additional external force on the pipeline.

[0003] For the existing hinge type compensator, the inventor found the following defects: When the pipeline is running, the medium flow impact and temperature change cause the bolt to repeatedly bear alternating loads, the friction between the threaded pairs is reduced, and loosening is caused. For example, the hinge compensator of the power plant boiler powder conveying pipeline causes the nut to fall off due to vibration, causing stress concentration of the pipeline.

[0004] Due to the single structure, material performance limitations and bolt fastening defects of the traditional hinge type compensator, thrust concentration, fatigue failure and loosening problems are prone to occur under high pressure and high temperature working conditions, which seriously restricts the reliability of the equipment. SUMMARY

[0005] The purpose of the present application is to provide a hinge type compensator capable of absorbing thrust to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a hinge type compensator capable of absorbing thrust, comprising: Coaxially sliding end pipe one and end pipe two, end pipe one and end pipe two constitute a compensator, the inner wall of end pipe one is coaxially extended and connected with an inner pipe, one end of end pipe two is coaxially fixedly connected with a bellows, the bellows surrounds the inner pipe, the inner pipe slides with the inner wall of end pipe two, and the length of the inner pipe completes the blocking coverage at the connection between end pipe two and the bellows, two support pieces are symmetrically arranged at the outer walls of end pipe one and end pipe two, four absorbing pieces are uniformly arranged at the outer walls of end pipe one and end pipe two and the support pieces, and one limiting piece is arranged at the upper and lower ends of the four absorbing pieces respectively; Among them, the limiting piece is used to adaptively lock the connection between the absorbing piece and the compensator, avoiding loosening of the connection of the equipment under vibration.

[0007] As a further improvement of the above-mentioned scheme, one absorbing piece includes two reinforcing plates respectively fixedly connected to the upper and lower ends of the outer wall of the compensator, a movable notch is vertically arranged in the middle of the outer end of each reinforcing plate, a screw rod is threadedly connected in each movable notch, two nuts are threadedly connected in sequence at the tail end of the screw rod, the two nuts are installed on the same side of the two reinforcing plates, and the outer wall of the screw rod is slidably connected with the two movable notches.

[0008] As a further improvement of the above-mentioned scheme, a support spring is wound around the outer wall of the screw rod, and two ring pieces are coaxially fixedly connected to the upper and lower ends of the support spring.

[0009] As a further improvement of the above-mentioned scheme, one limiting piece includes a connecting plate fixedly installed on the outer side of the reinforcing plate, an arc-shaped movable block in the shape of C and opening outward is fixedly connected to the outer end of the connecting plate, two radial sliding grooves parallel to the side edge of the connecting plate are symmetrically arranged at the outer two ends of the arc-shaped movable block, a sliding rod is slidably connected in each radial sliding groove, an arc-shaped block is fixedly connected to the top end of each sliding rod, a vertical sliding frame is fixedly connected to the inner two ends of each arc-shaped block, and a return spring is connected between the other middle part of the arc-shaped block and the inner end of the connecting plate.

[0010] As a further improvement of the above-mentioned scheme, one side sliding block is slidably connected in each vertical sliding frame, a pressing spring is connected between each side sliding block and the inner wall of one end of the vertical sliding frame, an outer cylinder block with a hollow top is fixedly connected to the inner end of each side sliding block, and a plurality of wedge blocks with consistent inclination are uniformly fixedly connected to the inner wall of the top of the outer cylinder block.

[0011] As a further improvement of the above-mentioned scheme, an inner rotating block with a hollow top is rotatably connected in the outer cylinder block, a plurality of limiting notches with gradually increasing sizes are sequentially arranged in the inner wall of the inner rotating block from top to bottom, the limiting notches are inserted with the nuts and the top end of the screw rod, and a plurality of spring pieces are uniformly fixedly connected to the outer wall of the top of the limiting notches. When the spring pieces rotate in the nut loosening direction, the spring pieces are blocked by the wedge blocks, and when the spring pieces rotate in the nut tightening direction, the spring pieces slide on the inclined surface of the wedge blocks.

[0012] As a further improvement of the above-mentioned scheme, the supporting piece includes two side plates one symmetrically fixedly connected to the outer wall of the end pipe, a middle plate is vertically fixedly connected to the outer middle part of each side plate one, and a horizontal notch one is arranged in the outer wall of each middle plate.

[0013] As a further improvement of the above scheme, the support further comprises two side plates II symmetrically fixedly connected to the two outer walls of the end pipe, the outer middle parts of the two side plates II are vertically fixedly connected with two adjacent clamping plates respectively, the middle parts of the two clamping plates at one side are slidably connected with the middle plate, and the two clamping plates and one middle plate are connected with a connecting bolt at the notch.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. The present application uses the one-way blocking mechanism of the spring sheet and the wedge block through the cooperation of the limiting piece and the absorbing piece, ensures that the bolt can only rotate in the tightening direction, effectively prevents the loosening of the connection caused by pipeline vibration, avoids the failure of the threaded pair under alternating load, and improves the reliability of the equipment under high pressure and high temperature working conditions.

[0015] 2. The present application simultaneously copes with axial and radial forces through the composite design of the absorbing piece and the support, realizes thrust dispersion and rapid reset, reduces stress concentration, and prolongs the service life.

[0016] 3. The present application provides hinged support through the notch I and the connecting bolt, enhances the overall rigidity, and at the same time, the modular design simplifies the assembly process and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the overall structure of the present application.

[0018] Figure 2 is a top view of the present application. Figure 1

[0019] Figure 3 is a sectional view in the A-A direction of the present application. Figure 2

[0020] Figure 4 is a sectional view in the B-B direction of the present application. Figure 2

[0021] Figure 5 is an overall cross-sectional structure diagram of the present application. Figure 1

[0022] Figure 6 is a partial structure diagram of the absorbing piece of the present application.

[0023] Figure 7 is a three-dimensional cross-sectional structure diagram of the limiting piece of the present application.

[0024] Figure 8 is an exploded view of the limiting piece and the nut of the present application.

[0025] Figure 9 is a three-dimensional cross-sectional structure diagram of the limiting piece from another perspective. ​​​​

[0026] Figure 10 Figure 1 is a sectional view of the whole structure of the limiting member of the present application.

[0027] In the figure: 1, end pipe one; 2, end pipe two; 3, inner pipe; 4, corrugated pipe; 5, side plate one; 6, middle plate; 7, notch one; 8, side plate two; 9, clamping plate; 10, connecting bolt; 11, reinforcing plate; 12, movable notch; 13, screw rod; 14, nut; 15, supporting spring; 16, ring piece; 17, connecting plate; 18, reset spring; 19, arc-shaped block; 20, vertical sliding frame; 21, radial sliding groove; 22, sliding rod; 23, abutting spring; 24, side sliding block; 25, outer cylinder block; 26, inner rotating block; 27, limiting notch; 28, spring piece; 29, wedge block; 30, arc-shaped movable block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] The present application provides a technical scheme of a hinge type compensator capable of absorbing thrust: a hinge type compensator capable of absorbing thrust, comprising: The coaxially sliding end pipe one 1 and the end pipe two 2 constitute the compensator, the inner wall of the end pipe one 1 is coaxially extended and connected with the inner pipe 3, one end of the end pipe two 2 is coaxially fixedly connected with the corrugated pipe 4, the corrugated pipe 4 surrounds the inner pipe 3, the inner pipe 3 slides with the inner wall of the end pipe two 2, and the length of the inner pipe 3 completely blocks and covers the connection between the end pipe two 2 and the corrugated pipe 4, two supporting members are symmetrically arranged at the outer walls of the end pipe one 1 and the end pipe two 2, the outer walls of the end pipe one 1 and the end pipe two 2 and the supporting members are staggered and uniformly provided with four absorbing members, and one limiting member is arranged at the upper end and the lower end of each absorbing member. The limiting member is used for adaptively locking the connection between the absorbing member and the compensator, so as to avoid loosening of the connection of the equipment under vibration.

[0030] Further, the limiting member can be arranged according to actual needs, and it is not necessary to arrange one limiting member at the upper end and the lower end of each absorbing member, and the number of the limiting members can be regularly and equidistantly distributed around the compensator.

[0031] Referring to Figures 1-5 The end pipe one 1 and the end pipe two 2 are connected with the pipeline by flanges, when there is pressure and instantaneous impact force in the pipeline, the equipment can absorb the acting force by the absorbing member in cooperation with the corrugated pipe 4, and can assist the equipment to reset under the action of the absorbing member.

[0032] The support is used for supporting both sides of the compensator, and improving the strength of the compensator.

[0033] The limiting piece fixes both ends of the absorbing piece, and only supports the bolt to rotate in one direction (here, the direction is the bolt tightening direction), so as to avoid the loosening of the bolt at the connecting position due to the vibration of the compensator.

[0034] The absorbing piece includes two reinforcing plates 11 respectively fixed and connected to the upper and lower ends of the outer wall of the compensator in the radial direction, and a movable slot 12 is vertically arranged in the middle of the outer end of each reinforcing plate 11. A threaded rod 13 is threadedly connected in the two movable slots 12, and two nuts 14 are threadedly connected to the tail end of the threaded rod 13 in sequence, and the two nuts 14 are installed on the same side of the two reinforcing plates 11.

[0035] Referring to Figures 4-6 , the threaded rod 13 passes through one of the movable slots 12 and the tail end of the threaded rod 13 passes through the other movable slot 12, and the nuts 14 are threadedly connected to the head of the threaded rod 13 with the support of the reinforcing plates 11, so as to fix the head of the threaded rod 13 and the connected reinforcing plates 11, and the tail end of the threaded rod 13 is connected to the reinforcing plate 11 above the end pipe 1 (the direction needs to be referred to Figure 5 , and the specific installation needs to be determined according to the actual situation), and the threaded rod 13 is connected to the end pipe 1 and the end pipe 2, and the end pipe 1 and the end pipe 2 are installed, and the end pipe 1 and the end pipe 2 are synchronously slid inwardly at the top of the corrugated pipe 4 and the end pipe 1, so that the compensator can be adaptively and slidably stretched under the thrust.

[0036] The outer wall of the threaded rod 13 is slidably connected to the two movable slots 12.

[0037] Referring to Figure 6 , the threaded rod 13 can adapt to the change of the non-radial force of the compensator when normally supporting the compensator, and can ensure that the threaded rod 13 can be returned to the original position under the limiting piece, so as to realize the stable operation of the compensator.

[0038] A supporting spring 15 is wound on the outer wall of the threaded rod 13, and the upper and lower ends of the supporting spring 15 are coaxially fixedly connected with a ring piece 16, and the outer ends of the two ring pieces 16 are abutted with the inner ends of the movable slots 12.

[0039] Referring to Figures 4-6 , the supporting spring 15 and the ring piece 16 can provide an absorbing function for the axial force when the compensator is working, and can provide an additional supporting force for the end pipe 1 and the end pipe 2, and can assist the corrugated pipe 4 to quickly return to the original position.

[0040] Further, since the size of the movable slot 12 is larger than the outer wall of the screw rod 13, and the sliding direction of the movable slot 12 is arranged along the radial direction of the compensator, when facing the radial force, the screw rod 13 matched and sliding in the movable slot 12 can also provide support, effectively absorbing the thrust.

[0041] One limiting piece includes a connecting plate 17 fixedly installed at the outer side of the reinforcing plate 11, the outer end of the connecting plate 17 is fixedly connected with a C-shaped and outwardly open arc-shaped movable block 30, the outer side of the two ends of the arc-shaped movable block 30 is symmetrically provided with two radial sliding grooves 21 parallel along the side edge of the connecting plate 17, the two radial sliding grooves 21 are both slidably connected with a sliding rod 22, the top end of the two sliding rods 22 is both fixedly connected with an arc-shaped block 19, the inner side of the two ends of the two arc-shaped blocks 19 is both fixedly connected with a vertical sliding frame 20, the other side of the middle of the arc-shaped block 19 is connected with the inner end of the connecting plate 17 with a reset spring 18.

[0042] Referring to Figure 6 and Figure 7 , the elastic potential energy of the reset spring 18 stably pushes the entire arc-shaped block 19 to move outward, so as to realize the support and positioning of the screw rod 13, avoid the dislocation of the screw rod 13 when the compensator is subjected to the radial force, and protect the normal operation of the compensator.

[0043] Further, the two limiting pieces are respectively installed at the upper and lower ends of one screw rod 13, which can stably protect the screw rod 13 to be always parallel to the center line of the compensator.

[0044] The two vertical sliding frames 20 are respectively slidably connected with a side sliding block 24, the two side sliding blocks 24 are connected with the inner wall of one end of the vertical sliding frame 20 with a pressing spring 23, the inner end of the two side sliding blocks 24 is fixedly connected with a top hollow outer cylinder block 25, the top inner wall of the outer cylinder block 25 is uniformly fixedly connected with a plurality of wedge blocks 29 which are inclined in the same direction.

[0045] The outer cylinder block 25 is rotatably connected with a top hollow inner rotating block 26, the inner wall of the inner rotating block 26 is sequentially provided from top to bottom with a plurality of limiting grooves 27 with gradually increasing sizes, the limiting grooves 27 are inserted with the screw cap 14 and the top end of the screw rod 13, and the top outer wall of the limiting grooves 27 is uniformly fixedly connected with a plurality of spring sheets 28. Further, the number of the wedge blocks 29 is not less than 3 groups, and the number of the wedge blocks 29 is correspondingly arranged with the spring sheets 28.

[0046] Among them, the spring sheets 28 are blocked by the wedge blocks 29 when rotating in the loosening direction of the screw cap 14, and the spring sheets 28 slide with the inclined surface of the wedge blocks 29 when rotating in the tightening direction of the screw cap.

[0047] Referring to Figures 6-10, the outer cylinder block 25 is slid in the vertical sliding frame 20 through the side sliding block 24, the outer cylinder block 25 rotates with the connecting place of the side sliding block 24 and the vertical sliding frame 20 as the fulcrum, and the outer cylinder block 25 cannot rotate along its axis; the outer cylinder block 25 can adapt to the sliding and inclination change of the connected nut 14 on one hand, and on the other hand, through the two connection states of the spring sheet 28 and the wedge block 29, the rotation of the nut 14 in the loosening direction is prevented by the inner rotating block 26, so as to ensure the stability of the equipment connection.

[0048] Further, the multiple size levels of the opened limiting notches 27 can adapt to the nuts 14 of different sizes, and can realize the limitation of the nut 14, so as to ensure the stability of the compensator connection.

[0049] Specifically, the inner rotating block 26 rotates in the middle groove of the inner wall of the outer cylinder block 25 (see Figure 9 and Figure 10 ), the inner rotating block 26 rotates along the axis of the outer cylinder block 25, and the spring sheet 28 cooperates with the wedge block 29 to limit the rotation direction of the inner rotating block 26; when the compensator only generates the radial (i.e. Figure 1 vertical direction) expansion and contraction force, the inner rotating block 26 remains stable, and the rotation only exists in the lateral shaking.

[0050] The support member includes two side plates one 5 symmetrically and fixedly connected to the outer wall of the end pipe one 1, and one middle plate 6 is vertically and fixedly connected to the outer side of each of the two side plates one 5.

[0051] The support member further includes two side plates two 8 symmetrically and fixedly connected to the outer wall of the end pipe two 2, and two adjacent clamping plates 9 are vertically and fixedly connected to the outer side of each of the two side plates two 8, the middle part of the two clamping plates 9 at one side is slidably connected to the middle plate 6, and one connecting bolt 10 is connected to the clamping plates 9 and the middle plate 6 at the notch one 7.

[0052] Referring to Figures 1-3 and Figure 5 , the notch one 7 is opened along the extension direction of the clamping plate 9, and the size is greater than that of the connecting bolt 10, so that the middle plate 6 and the clamping plate 9 can slide adaptively when the compensator bears the axial force.

[0053] Further, another implementation manner of the support member is: The middle plate 6 is rotationally connected to the connected side plate one 5, and the two clamping plates 9 are rotationally connected to the connected side plate two 8, so that the device can resist the radial force.

[0054] In use, the end pipe one 1 is connected with the end pipe two 2, the inner pipe 3 is inserted into the inner wall of the end pipe two 2, the top end of the corrugated pipe 4 abuts against the bottom end of the end pipe one 1, the side plate one 5 corresponds to the side plate two 8, the middle plate 6 is matched with the clamping plate 9, and the connection of the two clamping plates 9 and the middle plate 6 is completed through the connecting bolt 10.

[0055] After the side plate one 5 is matched with the side plate two 8, each reinforcing plate 11 is also matched, the screw rod 13 is sequentially inserted through the two movable notches 12, and a supporting spring 15 is placed when the screw rod 13 is inserted through one movable notch 12, finally the bolt fixing is completed through the two nuts 14, after the fixing of all the screw rods 13 is completed, a connecting plate 17 is respectively installed and fixed at the corresponding reinforcing plate 11, and the bottom end of the inner rotating block 26 driven by the outer cylinder block 25 is clamped with the nut 14, if the limiting notch 27 and the nut 14 have not completed clamping, only need to reverse rotate the inner rotating block 26 to realize the clamping of the bottom end of the limiting notch 27 and the nut 14, and the whole equipment is completed.

[0056] The compensator is installed through the flange, when the pipeline is conveying medium, the compensator can provide composite support force under the cooperation of the elastic potential energy of the corrugated pipe 4 and the plurality of supporting springs 15 when the compensator is subjected to axial force.

[0057] When the compensator is subjected to radial force, the plurality of screw rods 13 slide along the movable notch 12 in cooperation with the corrugated pipe 4, and the screw rod 13 and the nut 14 can push the whole outer cylinder block 25 to slide outward through the reset spring 18, so that the screw rod 13 is always parallel to the center line of the compensator.

[0058] Under the vibration generated by conveying medium, after the inner rotating block 26 is clamped with the nut 14, through the connection of the spring sheet 28 and the wedge block 29, the whole nut 14 and the screw rod 13 cannot be rotated in the loosening direction, so that the stable operation of the compensator is ensured.

[0059] In the embodiment, the size and size ratio of each structure are reasonably selected according to the working needs of the actual compensator.

[0060] Among them: When the end pipe one 1 and the end pipe two 2 bear axial force, the corrugated pipe 4 will synchronously expand and contract in the axial direction with the supporting spring 15, and the compensation range is 0-40mm (the specific value needs to be changed according to the size ratio of the equipment and the pipeline conveying pressure).

[0061] When the end pipe one 1 and the end pipe two 2 bear radial force, the corrugated pipe 4 deforms towards the bearing area and compensates, so that at the tail of the screw rod 13 and the connection of the nut 14, the outer cylinder block 25 and the arc block 19 slide along the radial sliding groove 21 inwards / outwards, realize the radial displacement compensation of the outer cylinder block 25 and the arc block 19 consistent with the end pipe one 1 and the end pipe two 2, and finally realize the homing of the outer cylinder block 25 driving the nut 14 through the reset spring 18.

[0062] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A hinged compensator capable of absorbing thrust, characterized in that, include: The two end tubes, one and two, slide coaxially and form a compensator. One end tube has an inner tube extending coaxially to one side of its inner wall. One end of the two end tubes has a corrugated pipe fixedly connected coaxially. The corrugated pipe surrounds the inner tube. The inner tube slides against the inner wall of the two end tubes, and the length of the inner tube blocks and covers the connection between the two end tubes and the corrugated pipe. Two support members are symmetrically arranged on the outer walls of the two end tubes. Four absorbers are evenly arranged on the outer walls of the two end tubes, offset from the support members. A limiting member is provided at the upper and lower ends of each of the four absorbers. The limiting component is used to adaptively lock the connection between the absorber and the compensator, preventing the connection of the equipment from loosening under vibration.

2. The hinged compensator capable of absorbing thrust according to claim 1, characterized in that: One of the absorbers includes reinforcing plates that are radially fixed to the upper and lower ends of the outer wall of the compensator. Each of the two reinforcing plates has a vertically opening at the middle of its outer end. A screw is threaded into each of the two slots. Two nuts are threaded into the tail of the screw. The two nuts are installed on the same side of the two reinforcing plates.

3. A hinged compensator capable of absorbing thrust according to claim 2, characterized in that: The outer wall of the screw is slidably connected to the two movable slots.

4. A hinged compensator capable of absorbing thrust according to claim 3, characterized in that: A support spring is wound around the outer wall of the screw. The upper and lower ends of the support spring are respectively fixedly connected to a ring plate coaxially with the screw, and the outer ends of the two ring plates abut against the inner end of the movable slot.

5. A hinged compensator capable of absorbing thrust according to claim 1, characterized in that: One of the limiting components includes a connecting plate fixedly installed on the outside of the reinforcing plate, and a C-shaped, outwardly opening arc-shaped movable block is fixedly connected to the outer end of the connecting plate.

6. A thrust-absorbing hinged compensator according to claim 5, characterized in that: The outer ends of the arc-shaped movable block are symmetrically provided with radial grooves parallel to the side of the connecting plate. A slide rod is slidably connected in each of the two radial grooves. An arc-shaped block is fixedly connected to the top of each of the two slide rods. A vertical slide frame is fixedly connected to the inner ends of each of the two arc-shaped blocks. A return spring is connected to the middle of the other side of the arc-shaped block and the inner end of the connecting plate.

7. A hinged compensator capable of absorbing thrust according to claim 6, characterized in that: Each of the two vertical sliding frames has a side slider slidably connected inside. The two side sliders are connected to the inner wall of one end of the vertical sliding frame by a retaining spring. The inner ends of the two side sliders are fixedly connected to an outer cylinder block with a hollow top. The inner wall of the top of the outer cylinder block is uniformly fixedly connected with several wedges with the same inclined direction.

8. A thrust-absorbing hinged compensator according to claim 7, characterized in that: The outer cylinder block is rotatably connected to an inner rotating block with a hollow top. The inner wall of the inner rotating block has multiple limiting slots with gradually increasing size from top to bottom. The limiting slots are inserted into the nut and the top of the screw. Several spring plates are evenly fixedly connected to the top outer wall of the limiting slot. When the spring plate rotates in the direction of loosening the nut, it blocks the wedge block; when the spring plate rotates in the direction of tightening the nut, it slides on the inclined surface of the wedge block.

9. A hinged compensator capable of absorbing thrust according to claim 1, characterized in that: The support includes two side plates symmetrically fixedly connected to the outer wall of the end tube. A middle plate is vertically fixedly connected to the outer middle part of each of the two side plates. A horizontal slot is opened on the outer wall of each of the two middle plates.

10. A thrust-absorbing hinged compensator according to claim 9, characterized in that: The support also includes two side plates two that are symmetrically fixed to the outer wall of the end pipe two. Two adjacent clamping plates are vertically fixed to the middle of the outer side of the two side plates two respectively. The middle of the two clamping plates on one side slides with the middle plate. The two clamping plates and one middle plate are connected to a connecting bolt at a groove.

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