CN210069203U

CN210069203U - Energy-saving flexible joint protection device

Info

Publication number: CN210069203U
Application number: CN201920788335.2U
Authority: CN
Inventors: 董继法; 肖炳光; 杨兵兵; 高学军; 李会波
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-02-14
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to the technical field of accessories of pipeline installation equipment, in particular to an energy-saving flexible joint protection device, which reduces the probability of the phenomenon that a worker excessively screws a plurality of groups of nuts on a plurality of groups of threaded rods respectively by adding a limiting device, thereby reducing the probability of damaging two groups of rubber rings and a joint body; the connector comprises a connector body, two groups of flanges, two groups of rubber rings, a plurality of groups of threaded rods and a plurality of groups of nuts, wherein the outer end edge areas of the two groups of flanges are respectively and uniformly provided with a plurality of groups of extension holes and a plurality of groups of extension holes in a penetrating manner, the plurality of groups of extension holes and the plurality of groups of extension holes are respectively rotatably sleeved with the bottom areas and the top areas of the plurality of groups of threaded rods, the plurality of groups of nuts are respectively screwed with the tops of the plurality of groups of threaded rods, and; the multi-group gauge is characterized by further comprising a plurality of groups of limiting boxes, a plurality of groups of limiting springs, a plurality of groups of extrusion plates, a plurality of groups of scales and a plurality of groups of indicating rods, wherein the bottom ends of the plurality of groups of limiting boxes are respectively provided with a plurality of groups of limiting grooves.

Description

Energy-saving flexible joint protection device

Technical Field

The utility model relates to a technical field of pipeline erection equipment auxiliary device especially relates to an energy-conserving flexible joint protection device.

Background

As is well known, with the development of water supply and drainage projects in cities and countryside and the rapid popularization and expansion of pipe networks, nodular cast iron pipes play an important role in water supply and drainage transmission, and energy-saving flexible joints are usually adopted in the process of connecting pipelines of the nodular cast iron pipes, wherein the energy-saving flexible joint protection device is a device which can be bent within 5 degrees and is used for connecting two groups of nodular cast iron pipes together, and the energy-saving flexible joint protection device is widely used in the field of water supply and drainage engineering; the existing energy-saving flexible joint protection device comprises a joint body, two groups of flanges, two groups of rubber rings, a plurality of groups of threaded rods and a plurality of groups of nuts, wherein the outer end edge areas of the two groups of flanges are respectively and uniformly provided with a plurality of groups of extension holes and a plurality of groups of extension holes in a penetrating manner; when the existing energy-saving flexible joint protection device is used, firstly, two groups of flanges are respectively sleeved on the connecting ends of two groups of nodular cast iron pipes to be connected, then two groups of rubber rings are respectively sleeved on the two groups of nodular cast iron pipes and are just as in the two groups of clamping grooves, then two ends of a joint body are respectively just between the two groups of rubber rings and the two groups of clamping grooves of the two groups of flanges, at the moment, the two groups of flanges are screwed through a plurality of groups of threaded rods and a plurality of groups of nuts, at the moment, the two groups of rubber rings are sealed and clamped on the two groups of nodular cast iron pipes under the extrusion of the joint body and the two groups of flanges, and the joint body is fixed at the connecting part of the two groups of nodular cast iron pipes under the extrusion of the two groups of flanges, and when the nodular cast iron; present energy-conserving flexible joint protection device discovers in using, make multiunit nut screw up respectively on the multiunit threaded rod tightly make energy-conserving flexible joint install between two sets of pipelines through rotating the multiunit nut, in order to guarantee the performance that connects body and two sets of rubber rings, can not excessively screw the multiunit nut on the multiunit threaded rod, however because the reason of human factor, the phenomenon that the staff excessively screwed the multiunit nut respectively on the multiunit threaded rod can appear, then the probability that two sets of rubber rings and joint body received the damage is higher this moment, thereby lead to the practicality relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an add stop device and reduce the probability that the phenomenon that the staff excessively screwed respectively the multiunit nut on the multiunit threaded rod takes place, therefore reduced two sets of rubber rings and connect the probability that the body received the damage to the energy-conserving flexible joint protection device of reinforcing practicality.

The utility model discloses an energy-conserving flexible joint protection device, including joint body, two sets of flanges, two sets of rubber rings, multiunit threaded rod and multiunit nut, the outer end edge region of two sets of flanges evenly runs through respectively and is provided with multiunit and stretches into hole and multiunit and stretches out the hole, multiunit stretches into hole and multiunit and stretches out the hole and rotate the suit with the bottom region and the top region of multiunit threaded rod respectively, the multiunit nut is respectively with the top spiral shell dress of multiunit threaded rod, the inner of two sets of flanges is provided with two sets of draw-in grooves respectively, two sets of rubber rings are located inside two sets of draw-in grooves respectively, the top bottom region and the top region of joint body block respectively between two sets of; the bottom of the plurality of groups of limiting boxes are respectively provided with a plurality of groups of limiting grooves, the top ends of the plurality of groups of limiting grooves are respectively provided with a plurality of groups of telescopic holes in a penetrating way, the plurality of groups of telescopic holes are respectively sleeved with the top areas of the plurality of groups of threaded rods in a sliding way, the bottom ends of the plurality of groups of threaded rods are respectively provided with a plurality of groups of nuts, the plurality of groups of limiting springs are respectively sleeved with the bottom areas of the plurality of groups of threaded rods in a movable way, the top ends of the plurality of groups of extrusion plates are respectively provided with a plurality of groups of penetrating holes in a penetrating way, the plurality of groups of penetrating holes are respectively sleeved with the plurality of groups of threaded rods in a sliding way, the bottom ends and the top ends of the plurality of groups of limiting springs are respectively clung to the top ends of the plurality of groups of extrusion plates and the top ends of, the outer end of multiunit spacing groove is run through respectively and is provided with multiunit U type groove, the inner of multiunit pilot lever slides from the outside of multiunit spacing box respectively and passes multiunit U type groove and stretch into to multiunit spacing inslot respectively, the inner of multiunit pilot lever is connected with the left end of multiunit stripper plate respectively, the inner of multiunit scale is connected with the outer end of multiunit spacing box respectively, the installation is pressed close to with the multiunit pilot lever respectively to the multiunit scale.

The utility model discloses an energy-conserving flexible joint protection device still includes the rubber guard ring, rubber guard ring and joint body activity suit.

The utility model discloses an energy-conserving flexible joint protection device still includes multiunit stop nut, multiunit stop nut respectively with the top spiral shell dress of multiunit threaded rod, multiunit stop nut's bottom is hugged closely with the top of multiunit nut respectively.

The utility model discloses an energy-conserving flexible joint protection device still includes the spacing cap of multiunit, front end, rear end, left end and the right-hand member of the spacing cap of multiunit slide with front end, rear end, left end and the right-hand member of multiunit spacing groove respectively and hug closely, the top of the spacing cap of multiunit is provided with the multiunit constant head tank with the multiunit spacing groove intercommunication respectively, the multiunit constant head tank clamps with the fastening of multiunit nut respectively.

The utility model discloses an energy-conserving flexible joint protection device still includes the multiunit packing ring, the multiunit packing ring is respectively with the movable suit of multiunit threaded rod, the top of multiunit packing ring is hugged closely with the bottom of multiunit nut respectively.

The utility model discloses an energy-conserving flexible joint protection device still includes the multiunit handle, the top of multiunit handle is connected with the bottom of the spacing cap of multiunit respectively.

The utility model discloses an energy-conserving flexible joint protection device still includes the multiunit dop, the bottom of multiunit dop is connected with the top inboard of the spacing box of multiunit respectively, and the bottom edge region of downside flange is provided with the multiunit cotter way respectively, the multiunit dop clamps with the multiunit cotter way respectively.

The utility model discloses an energy-conserving flexible joint protection device still includes the multiunit helmet, the bottom of multiunit helmet is provided with the multiunit thread groove respectively, the multiunit thread groove respectively with the top spiral shell dress of multiunit threaded rod, the bottom of multiunit helmet is hugged closely with multiunit stop nut's top respectively.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, when a plurality of groups of nuts are respectively screwed on a plurality of groups of threaded rods, a plurality of groups of nuts of the plurality of groups of threaded rods respectively extrude a plurality of groups of limiting springs in a plurality of groups of limiting boxes through a plurality of groups of extruding plates, and simultaneously, the plurality of groups of extruding plates respectively drive a plurality of groups of indicating rods to move towards the inner sides of a plurality of groups of limiting grooves along the axial direction of the threaded rods, at the moment, a worker observes the scale values of the plurality of groups of indicating rods respectively corresponding to a plurality of groups of scales, namely the extruding force of the plurality of groups of limiting springs on two groups of flanges through the plurality of groups of threaded rods and the plurality of groups of nuts, when the plurality of groups of indicating rods respectively move to the appointed positions on the plurality of groups of scales, the worker respectively stops rotating the plurality of groups of nuts, at the moment, under the premise that two groups of rubber rings and a joint body are not damaged, therefore, the probability that the two groups of rubber rings and the joint body are damaged is reduced, and the practicability is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the connection structure of the limiting box and the extrusion plate of the present invention;

fig. 3 is a schematic view of the connection structure of the scale and the indicating rod of the present invention;

FIG. 4 is a schematic view of the connection structure of the rubber ring and the flange of the present invention;

in the drawings, the reference numbers: 1. a connector body; 2. two groups of pressing flanges; 3. two groups of rubber rings; 4. a plurality of groups of threaded rods; 5. a plurality of sets of nuts; 6. two groups of clamping grooves; 7. a plurality of groups of limiting boxes; 8. a plurality of groups of limiting springs; 9. a plurality of groups of extrusion plates; 10. a plurality of sets of scales; 11. a plurality of groups of indicating rods; 12. a plurality of sets of limiting grooves; 13. a plurality of sets of screw caps; 14. a rubber guard ring; 15. a plurality of sets of limit nuts; 16. a plurality of groups of limit caps; 17. a plurality of sets of washers; 18. a plurality of groups of handles; 19. a plurality of groups of chucks; 20. a plurality of groups of protective caps; 21. a plurality of groups of telescopic holes; 22. a plurality of sets of through holes; 23. a plurality of groups of U-shaped grooves; 24. a plurality of groups of positioning grooves; 25. a plurality of sets of pin grooves; 26. a plurality of groups of thread grooves; 27. a plurality of groups of extension holes; 28. a plurality of groups of extension holes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the utility model discloses an energy-conserving flexible joint protection device, including joint body 1, two sets of flanges 2, two sets of rubber ring 3, multiunit threaded rod 4 and multiunit nut 5, the outer end edge region of two sets of flanges 2 evenly runs through respectively and is provided with multiunit and stretches into hole 27 and multiunit and stretches out hole 28, multiunit stretches into hole 27 and multiunit and stretches out hole 28 and rotates the suit with the bottom region and the top region of multiunit threaded rod 4 respectively, multiunit nut 5 is respectively with the top spiral shell dress of multiunit threaded rod 4, the inner of two sets of flanges 2 is provided with two sets of draw-in grooves 6 respectively, two sets of rubber ring 3 are located inside two sets of draw-in grooves 6 respectively, the top bottom region and the top region of joint body 1 block between two sets of rubber ring 3 and two sets; the device also comprises a plurality of groups of limit boxes 7, a plurality of groups of limit springs 8, a plurality of groups of extrusion plates 9, a plurality of groups of scaleplates 10 and a plurality of groups of indication rods 11, wherein the bottom ends of the plurality of groups of limit boxes 7 are respectively provided with a plurality of groups of limit grooves 12, the top ends of the plurality of groups of limit grooves 12 are respectively provided with a plurality of groups of telescopic holes 21, the plurality of groups of telescopic holes 21 are respectively sleeved with the top regions of the plurality of groups of threaded rods 4 in a sliding way, the bottom ends of the plurality of groups of threaded rods 4 are respectively provided with a plurality of groups of screw caps 13, the plurality of groups of limit springs 8 are respectively sleeved with the bottom regions of the plurality of groups of threaded rods 4 in a movable way, the top ends of the plurality of groups of extrusion plates 9 are respectively provided with a plurality of penetrating holes 22 in a penetrating way, the plurality of groups of penetrating holes 22 are respectively sleeved with the plurality of, the outer ends of the multiple groups of limiting grooves 12 are respectively provided with multiple groups of U-shaped grooves 23 in a penetrating manner, the inner ends of the multiple groups of indicating rods 11 respectively penetrate through the multiple groups of U-shaped grooves 23 from the outer sides of the multiple groups of limiting boxes 7 in a sliding manner and respectively extend into the multiple groups of limiting grooves 12, the inner ends of the multiple groups of indicating rods 11 are respectively connected with the left ends of the multiple groups of extrusion plates 9, the inner ends of the multiple groups of scales 10 are respectively connected with the outer ends of the multiple groups of limiting boxes 7, and the multiple groups of scales 10 are; firstly, when a plurality of groups of nuts are respectively screwed on a plurality of groups of threaded rods, a plurality of groups of nuts of the plurality of groups of threaded rods respectively extrude a plurality of groups of limiting springs in a plurality of groups of limiting boxes through a plurality of groups of extruding plates, and simultaneously, the plurality of groups of extruding plates respectively drive a plurality of groups of indicating rods to move towards the inner sides of a plurality of groups of limiting grooves along the axial direction of the threaded rods, at the moment, a worker observes the scale values of the plurality of groups of indicating rods respectively corresponding to a plurality of groups of scales, namely the extruding force of the plurality of groups of limiting springs on two groups of flanges through the plurality of groups of threaded rods and the plurality of groups of nuts, when the plurality of groups of indicating rods respectively move to the appointed positions on the plurality of groups of scales, the worker respectively stops rotating the plurality of groups of nuts, at the moment, under the premise that two groups of rubber rings and a joint body are not damaged, therefore, the probability that the two groups of rubber rings and the joint body are damaged is reduced, and the practicability is enhanced.

The energy-saving flexible joint protection device of the utility model also comprises a rubber protection ring 14, wherein the rubber protection ring 14 is movably sleeved with the joint body 1; through the rubber protective ring on the outside suit that connects the body, the effectual in-process that has reduced the joint body at the construction is collided with the protective paint protective layer, is collided up the probability of damaging even to the practicality has been strengthened.

The utility model discloses an energy-saving flexible joint protection device, which also comprises a plurality of groups of limit nuts 15, wherein the plurality of groups of limit nuts 15 are respectively screwed with the tops of the plurality of groups of threaded rods 4, and the bottom ends of the plurality of groups of limit nuts 15 are respectively clung to the top ends of the plurality of groups of nuts 5; after screwing the multiple groups of nuts on the multiple groups of fastening threaded rods, the multiple groups of limit nuts are screwed on the multiple groups of threaded rods respectively, so that the multiple groups of limit nuts are limited by the multiple groups of nuts respectively, the loosening probability of the multiple groups of nuts is effectively reduced, and the practicability is enhanced.

The utility model discloses an energy-conserving flexible joint protection device, still include multiunit spacing cap 16, the front end, the rear end, the left end and the right-hand member of multiunit spacing cap 16 respectively with the front end, the rear end, the left end and the right-hand member of multiunit spacing groove 12 slip and hug closely, the top of multiunit spacing cap 16 is provided with multiunit constant head tank 24 with multiunit spacing groove 12 intercommunication respectively, multiunit constant head tank 24 fastens with multiunit nut 13 respectively and clamps; through blocking the spacing cap card of multiunit at multiunit spacing inslot for the multiunit nut spacing, the staff only need hold the spacing box that corresponds this moment, alright in order effectual reduction when with nut spiral shell dress threaded rod, the probability of threaded rod rotation, it is visible to make multiunit nut spiral shell dress operate more facility on multiunit threaded rod respectively to the convenience has been strengthened.

The utility model discloses an energy-saving flexible joint protection device, which also comprises a plurality of groups of gaskets 17, wherein the plurality of groups of gaskets 17 are movably sleeved with a plurality of groups of threaded rods 4 respectively, and the top ends of the plurality of groups of gaskets 17 are respectively clung to the bottom ends of a plurality of groups of nuts 5; through the effectual extrusion damage degree that has reduced multiunit nut to the upside flange of pressing of multiunit packing ring to the reliability has been strengthened.

The utility model discloses an energy-saving flexible joint protection device, which also comprises a plurality of groups of handles 18, wherein the top ends of the plurality of groups of handles 18 are respectively connected with the bottom ends of a plurality of groups of limit caps 16; make the dismouting operation of multiunit spacing cap more convenient through the multiunit handle to the convenience has been strengthened.

The utility model discloses an energy-conserving flexible joint protection device, still include multiunit dop 19, the bottom of multiunit dop 19 is connected with the top inboard of multiunit spacing box 7 respectively, the bottom edge region of lower side flange is provided with multiunit cotter way 25 respectively, multiunit dop 19 clamps with multiunit cotter way 25 respectively; the spacing box of multiunit is gone into to the multiunit keyway of downside flange through multiunit dop card respectively, and the effectual spacing box of multiunit self-rotation probability that has reduced has made things convenient for the operation process of multiunit nut spiral shell dress on the multiunit threaded rod promptly, provides the guarantee for the reading of multiunit pilot lever on the multiunit scale respectively again to the practicality has been strengthened.

The utility model discloses an energy-conserving flexible joint protection device, still include multiunit helmet 20, the bottom of multiunit helmet 20 is provided with multiunit thread groove 26 respectively, multiunit thread groove 26 respectively with the top spiral shell dress of multiunit threaded rod 4, the bottom of multiunit helmet 20 is hugged closely with the top of multiunit stop nut 15 respectively; it is spacing to multiunit stop nut respectively through the multiunit helmet, the effectual multiunit stop nut that has reduced takes place not hard up probability, has reduced the top of multiunit threaded rod simultaneously and has been damaged and make multiunit stop nut and multiunit nut dismantle the probability of difficulty to the practicality has been strengthened.

The utility model relates to an energy-saving flexible joint protection device, when in operation, firstly, two groups of flanges are respectively sleeved on the connecting ends of two groups of nodular cast iron pipes to be connected, then two groups of rubber rings are respectively sleeved on the two groups of nodular cast iron pipes and are respectively just as in two groups of clamping grooves, then two ends of a joint body are respectively just between the two groups of rubber rings and the two groups of clamping grooves of the two groups of flanges, at the moment, the two groups of flanges are screwed through a plurality of groups of threaded rods and a plurality of groups of nuts, when the plurality of groups of nuts are respectively screwed on the plurality of groups of threaded rods, the plurality of groups of nuts of the plurality of groups of threaded rods respectively extrude a plurality of groups of limiting springs in a plurality of groups of limiting boxes through a plurality of groups of extruding plates, simultaneously, the plurality of groups of extruding plates respectively drive a plurality of groups of indicating rods to move towards the inner, the extrusion power of multiunit limiting spring to two sets of flanges through multiunit threaded rod and multiunit nut this moment promptly, after multiunit pilot lever moved to appointed position on multiunit scale respectively, at this moment respectively stop rotate multiunit nut can, at this moment under the prerequisite that does not cause the damage to two sets of rubber rings and joint body, the fastening work of two sets of flanges has been accomplished, make two sets of rubber rings seal and clamp on two sets of nodular cast iron pipes under the extrusion of joint body and two sets of flanges at this moment, and the joint body is fixed in the junction of two sets of nodular cast iron pipes under the extrusion of two sets of flanges, when the nodular cast iron pipe takes place extension or compression, the joint body can compensate this moment.

The terms "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An energy-saving flexible joint protection device comprises a joint body (1), two groups of flanges (2), two groups of rubber rings (3), a plurality of groups of threaded rods (4) and a plurality of groups of nuts (5), wherein the outer end edge areas of the two groups of flanges (2) are respectively and uniformly provided with a plurality of groups of extension holes (27) and a plurality of groups of extension holes (28) in a penetrating way, the plurality of groups of extension holes (27) and the plurality of groups of extension holes (28) are respectively and rotatably sleeved with the bottom areas and the top areas of the plurality of groups of threaded rods (4), the plurality of groups of nuts (5) are respectively screwed with the tops of the plurality of groups of threaded rods (4), the inner ends of the two groups of flanges (2) are respectively provided with two groups of clamping grooves (6, the top-bottom area and the top area of the joint body (1) are respectively clamped between the two groups of rubber rings (3) and the two groups of clamping grooves (6) of the two groups of flanges (2); the device is characterized by further comprising a plurality of groups of limiting boxes (7), a plurality of groups of limiting springs (8), a plurality of groups of extruding plates (9), a plurality of groups of scales (10) and a plurality of groups of indicating rods (11), wherein the bottom ends of the plurality of groups of limiting boxes (7) are respectively provided with a plurality of groups of limiting grooves (12), the top ends of the plurality of groups of limiting grooves (12) are respectively provided with a plurality of groups of telescopic holes (21), the plurality of groups of telescopic holes (21) are respectively sleeved with the top regions of the plurality of groups of threaded rods (4) in a sliding manner, the bottom ends of the plurality of groups of threaded rods (4) are respectively provided with a plurality of groups of nuts (13), the plurality of groups of limiting springs (8) are respectively sleeved with the bottom regions of the plurality of groups of threaded rods (4) in a movable manner, the top ends of the plurality of groups of extruding plates (9) are respectively provided with a plurality of groups of penetrating holes (22), the The top of position groove (12) is hugged closely, the top of multiunit spacing box (7) all hugs closely with the bottom of downside flange, the bottom of multiunit stripper plate (9) is hugged closely with the top of multiunit nut (13) respectively, the outer end of multiunit spacing groove (12) is run through respectively and is provided with multiunit U type groove (23), the inner of multiunit pilot rod (11) slides from the outside of multiunit spacing box (7) respectively and passes multiunit U type groove (23) and stretch into respectively to the utmost in the spacing groove (12), the inner of multiunit pilot rod (11) is connected with the left end of multiunit stripper plate (9) respectively, the inner of multiunit scale (10) is connected with the outer end of multiunit spacing box (7) respectively, installation is pressed close to with multiunit pilot rod (11) respectively in multiunit scale (10).

2. The energy-saving flexible joint protector as claimed in claim 1, characterized by further comprising a rubber guard ring (14), wherein the rubber guard ring (14) is movably sleeved with the joint body (1).

3. The energy-saving flexible joint protection device according to claim 2, further comprising a plurality of sets of limit nuts (15), wherein the plurality of sets of limit nuts (15) are respectively screwed with the tops of the plurality of sets of threaded rods (4), and the bottom ends of the plurality of sets of limit nuts (15) are respectively attached to the top ends of the plurality of sets of nuts (5).

4. The energy-saving flexible joint protection device according to claim 3, further comprising a plurality of sets of limiting caps (16), wherein the front ends, the rear ends, the left ends and the right ends of the plurality of sets of limiting caps (16) are respectively and slidably attached to the front ends, the rear ends, the left ends and the right ends of the plurality of sets of limiting grooves (12), the top ends of the plurality of sets of limiting caps (16) are respectively communicated with the plurality of sets of limiting grooves (12) to be provided with a plurality of sets of positioning grooves (24), and the plurality of sets of positioning grooves (24) are respectively fastened and clamped with the plurality of sets of nuts (13).

5. The energy-saving flexible joint protection device according to claim 4, further comprising a plurality of sets of washers (17), wherein the plurality of sets of washers (17) are movably sleeved with the plurality of sets of threaded rods (4), and top ends of the plurality of sets of washers (17) are closely attached to bottom ends of the plurality of sets of nuts (5).

6. The energy-saving flexible joint protection device according to claim 5, further comprising a plurality of groups of handles (18), wherein the top ends of the plurality of groups of handles (18) are respectively connected with the bottom ends of the plurality of groups of limit caps (16).

7. The energy-saving flexible joint protection device as claimed in claim 6, further comprising a plurality of sets of clamps (19), wherein the bottom ends of the plurality of sets of clamps (19) are respectively connected with the inner sides of the top ends of the plurality of sets of limiting boxes (7), the edge area of the bottom end of the lower flange is respectively provided with a plurality of sets of pin grooves (25), and the plurality of sets of clamps (19) are respectively clamped with the plurality of sets of pin grooves (25).

8. The energy-saving flexible joint protection device according to claim 7, further comprising a plurality of sets of protection caps (20), wherein the bottom ends of the plurality of sets of protection caps (20) are respectively provided with a plurality of sets of thread grooves (26), the plurality of sets of thread grooves (26) are respectively screwed with the tops of the plurality of sets of threaded rods (4), and the bottom ends of the plurality of sets of protection caps (20) are respectively attached to the top ends of the plurality of sets of limit nuts (15).