CN116447422A - Fuel pipeline compensator - Google Patents

Abstract

The utility model relates to the technical field of fuel pipeline compensators, and particularly provides a fuel pipeline compensator which comprises a trapezoid block, a triangular block and a sealing group. According to the utility model, through the clamping fit of the triangular clamping grooves and the triangular blocks in the clamping sleeve and the clamping fit of the trapezoidal clamping grooves and the trapezoidal blocks, the axial connection fixation and the circumferential limit fixation of the core pipe and the sleeve and the connecting sleeve are realized, the problem that the sleeve and the connecting sleeve rotate relatively in the working process to cause abrasion to influence the tightness between the sleeve and the connecting sleeve and cause fuel leakage is avoided, and the sealing group is arranged between the two second flanges, so that the part of the fuel pipeline compensator between the two second flanges is sealed, dust and impurities are prevented from falling into gaps at the joints of the structures in long-time use, the axial compensation and the angle compensation of the fuel pipeline compensator are influenced in the later use process, and the safety in the use operation process is improved.

Description

Fuel pipeline compensator

Technical Field

The utility model relates to the technical field of fuel oil pipeline compensators, and particularly provides a fuel oil pipeline compensator.

Background

The fuel oil pipeline compensator is used for providing displacement compensation when the fuel oil pipeline is installed and the displacement compensation of the fuel oil pipeline under the working condition, can provide axial compensation and angle compensation for the fuel oil pipeline, and has the capabilities of sealing, explosion prevention and pressure resistance.

The fuel pipeline compensator of the China patent with the publication number of CN218378284U realizes axial expansion compensation of the compensator and the coordination of spherical cavities at two ends of the mandrel and the sleeve and a rotating shell through the coordination of the mandrel and the sleeve, realizes angle compensation, but the connecting parts of the mandrel and the sleeve are connected with a limiting ring sleeve through a fixed ring sleeve, the fixed ring sleeve is axially connected and fixed with two ends of the sleeve of the limiting ring sleeve, and when the rotating force is large, the sleeve is easy to rotate in the fixed ring sleeve and the limiting ring sleeve, so that the connection tightness and stability of the sleeve are reduced, and the problem of fuel leakage is easy to occur; and after the fuel oil pipeline compensator is used for a long time, dust and impurities are easily accumulated at the joint of each part of the fuel oil pipeline compensator, so that the movement of the fuel oil pipeline compensator in the compensation process is influenced.

Disclosure of Invention

In view of the above problems, the present utility model provides a fuel oil pipe compensator to solve the technical problems of poor fixing effect, reduced sealability and stability, and long-term dust and impurity accumulation, which affect the movement of the fuel oil pipe compensator.

In order to achieve the above object, the present utility model provides the following technical solutions: a fuel oil pipeline compensator comprising: the core tube and the sleeve are hollow pipelines, the sleeve is sleeved on the outer side of one end of the core tube, the sleeve slides along the axis direction of the core tube, the end, away from each other, of the core tube and the sleeve is of a spherical cavity structure, the end, close to each other, of the core tube and the sleeve is of a straight tube structure, the outer side wall, away from each other, of the spherical cavity of the sleeve is provided with a connecting shell in a rotating mode, the connecting shell consists of a spherical cylinder of the spherical structure and a first flange plate connected to the spherical cylinder, the outer side wall, rotating mode, of the spherical cavity of the core tube and the sleeve is provided with a second flange plate, the first flange plate and the second flange plate are respectively located on two sides of the highest point of the arc surface of the spherical cavity, the first flange plate and the second flange plate are provided with convex rings, and the first flange plate and the second flange plate are connected through bolts and nuts, and therefore the spherical cavity is connected with the rotation of the spherical cylinder.

The utility model discloses a novel structure of a steel pipe, including core pipe, connecting tube sleeve, trapezoidal piece and clamping limit block group, sealing rubber circle, clamping sleeve, trapezoidal piece and triangle draw-in groove, sealing rubber circle is installed between the vertical section that is located trapezoidal piece both sides by symmetrical arrangement, protruding ring and connecting tube sleeve U type structure are adjacent, and protruding ring is connected through the joint cover that the cover was established with connecting tube sleeve U type structure is adjacent to the vertical section of connecting tube sleeve, the sleeve is kept away from the joint cover one end and the compensating chute of core pipe on the joint cover be equipped with along compensating chute axial gliding clamp cover jointly, all set up trapezoidal piece and triangle draw-in groove with trapezoidal piece matched with on clamp cover and the joint cover.

The two sealing groups sleeved on the core pipe and the sleeve are arranged between the two second flanges, the sealing groups are positioned between the core pipe and the two spherical cavities on the sleeve, each sealing group comprises a detachable single-movement telescopic pipe and two bidirectional telescopic pipes which are arranged on opposite faces of the two second flanges and are connected through a connecting assembly, the middle part of each bidirectional telescopic pipe is an annular sleeve, and a damping assembly is arranged between each annular sleeve and each connecting sleeve.

In one possible implementation mode, the clamping sleeve is composed of an upper half ring cover, a lower half ring cover and bolt nuts, wherein the upper half ring cover and the lower half ring cover are symmetrically arranged, the bolt nuts are used for connecting the two half ring covers, the vertical section of the half ring cover is of a U-shaped structure, the end faces, close to each other, of the trapezoid blocks on the two vertical sections of the U-shaped structure of the connecting cylinder sleeve are inclined faces, the end faces, far away from the connecting cylinder sleeve, of the trapezoid blocks on the protruding ring are inclined faces, trapezoid clamping grooves and triangular clamping grooves are formed in the half ring cover and are matched with the trapezoid blocks in a clamping mode, the triangular clamping grooves are matched with the triangular blocks in a clamping mode, and right angles of the triangular blocks face the half ring covers matched with the triangular blocks.

In one possible implementation mode, the clamp sleeve is composed of an upper fixed cover, a lower fixed cover and bolts and nuts, wherein the upper fixed cover and the lower fixed cover are symmetrically arranged, the bolts and the nuts are used for connecting the two fixed covers, the vertical section of the fixed cover is of a U-shaped structure, the length of a vertical section of the U-shaped structure of the fixed cover, which is far away from the semi-ring cover, is larger than that of another vertical section, the sliding sleeve is arranged on the compensation sliding groove, and a trapezoid clamping groove and a triangular clamping groove are formed in the fixed cover.

In a possible implementation mode, the connecting component comprises a pulling and moving cylinder installed on the single-moving telescopic tube, an inserting groove is formed in the end face of the pulling and moving cylinder, which is far away from the single-moving telescopic tube, a receiving and pulling cylinder is inserted into the inserting groove, the receiving and pulling cylinder is connected with the pulling and moving cylinder through screws, protruding cavities symmetrically arranged along the circumferential direction of the receiving and pulling cylinder are formed in the receiving and pulling cylinder and the pulling and moving cylinder, the protruding cavities are used for storing connecting parts of the clamping sleeve and connecting parts of the clamping sleeve, the two-way telescopic tube is connected between the two receiving and pulling cylinders, and the single-moving telescopic tube, the two-way telescopic tube and the annular sleeve are made of rubber materials.

In one possible implementation mode, limiting plates which are uniformly distributed along the circumferential direction of the inner wall of the pulling barrel are arranged on the inner wall of the pulling barrel, and abutting pieces are arranged on the inner wall of the pulling barrel through L-shaped strips and are uniformly distributed along the circumferential direction of the pulling barrel.

In one possible implementation mode, the damping component comprises a telescopic spring rod which is arranged on the inner wall of an annular sleeve and uniformly distributed along the circumferential direction of the telescopic spring rod, a supporting block is arranged on the telescopic spring rod, a counter bore which is uniformly distributed along the circumferential direction of the connecting sleeve and matched with the supporting block in a clamping way is formed in the outer wall of the connecting sleeve, a sliding hole is formed in the annular sleeve, a lifting plate is connected in the sliding hole in a sliding way, the lifting plate is connected with the supporting block through a rope, a screw rod is connected in the sliding hole in a rotating way, and the screw rod penetrates through the annular sleeve in a threaded matching way with the lifting plate.

The above technical solutions in the embodiments of the present utility model have at least one of the following technical effects: 1. according to the fuel oil pipeline compensator designed by the utility model, through the clamping fit of the triangular clamping groove and the triangular block in the clamping sleeve and the clamping fit of the trapezoidal clamping groove and the trapezoidal block in the clamping sleeve, the axial connection fixation and the circumferential limit fixation of the core pipe, the sleeve and the connecting sleeve are realized, the problem that the sleeve and the connecting sleeve rotate relatively in the working process to cause abrasion to influence the tightness between the sleeve and the connecting sleeve and cause fuel oil leakage is avoided, and the sealing group is arranged between the two second flanges, so that the part of the fuel oil pipeline compensator positioned between the two second flanges is sealed, dust and impurities are prevented from falling into gaps at the joints of all structures when the fuel oil pipeline compensator is used for a long time, the movement of the fuel oil pipeline compensator in the axial compensation and the angle compensation is influenced in the later use process is improved, the safety in the use operation process is prevented, and the damage caused by the manual error touching the fuel oil pipeline compensator in the use or detection is prevented.

2. The support block is inserted into the counter bore under the elastic force of the telescopic spring rod, so that the bidirectional telescopic pipe is supported on the connecting sleeve, and then the support block, the counter bore and the telescopic spring rod are matched to perform shock absorption protection on the fuel pipeline compensator after the bidirectional telescopic pipe is connected with the single-movement telescopic pipe, so that the fuel pipeline compensator is prevented from being broken due to shock.

3. The trapezoid blocks and the triangular blocks on the upper side and the lower side of the semi-ring cover respectively enter the semi-ring cover and enter the corresponding trapezoid clamping grooves and the triangular clamping grooves, and the right angles of the triangular blocks face the semi-ring cover, so that the semi-ring cover can be smoothly clamped on the vertical section and the protruding ring of the connecting cylinder sleeve, the convenience in mounting the semi-ring cover is improved, and meanwhile, the connecting cylinder sleeve and the protruding ring are prevented from rotating in the corresponding clamp sleeve and the clamping sleeve.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a main perspective structure of the present utility model.

Fig. 2 is a schematic perspective view of the seal assembly of fig. 1 with the seal assembly removed.

Fig. 3 is a schematic perspective view of a second flange, a single-movement telescopic tube and a pulling-movement tube.

Fig. 4 is a schematic perspective view of a sleeve, a second flange, a raised ring and a trapezoid block according to the present utility model.

Fig. 5 is a schematic perspective view of the assembled core tube, the connecting sleeve and the second flange.

Fig. 6 is a cross-sectional view of the present utility model with the snap fit sleeve positioned over the vertical section of the coupling sleeve in cooperation with the snap fit block set.

Fig. 7 is a cross-sectional view of the present utility model.

Fig. 8 is an enlarged view of the utility model at a in fig. 7.

Reference numerals: 1. a core tube; 2. a sleeve; 3. a connection housing; 4. a second flange plate; 5. a convex ring; 6. a sealing group; 10. a connecting cylinder sleeve; 11. compensating a chute; 12. a raised ring; 13. a trapezoid block; 14. triangular blocks; 15. a clamping sleeve; 150. a half-ring cover; 16. a clamp sleeve; 160. a fixed cover; 30. a spherical cylinder; 31. a first flange plate; 60. a single-movement telescopic pipe; 61. a connection assembly; 62. a two-way telescopic tube; 63. an annular sleeve; 64. a shock absorbing assembly; 610. pulling and moving the cylinder; 611. a drawing cylinder; 612. a protruding cavity; 620. an L-shaped strip; 621. abutting the sheet; 622. a limiting plate; 640. a telescoping spring rod; 641. abutting blocks; 642. countersink; 643. a slip hole; 644. a lifting plate; 645. and (3) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 4 and 7, a fuel line compensator comprises: core tube 1 and sleeve 2, core tube 1 and sleeve 2 are hollow pipeline, sleeve 2 cover is in the outside of core tube 1 one end, sleeve 2 slides along the axis direction of core tube 1, core tube 1 and sleeve 2 keep away from the one end that the one end kept away from mutually is spherical cavity structure, core tube 1 and sleeve 2 are all straight tube structure, core tube 1 and sleeve 2 spherical cavity keep away from the one end lateral wall all rotate the cover and are equipped with coupling housing 3, coupling housing 3 comprises spherical section of thick bamboo 30 of spherical structure and the ring flange 31 of being connected on spherical section of thick bamboo 30, the outer lateral wall in spherical cavity of core tube 1 and sleeve 2 all rotates the cover and is equipped with ring flange 4 No. two, ring flange 31 and ring flange 4 are located the both sides of spherical cavity arcwall face peak respectively, core tube 1 and sleeve 2 are close to spherical cavity department and all are provided with bulge loop 5, be provided with the sealing rubber circle between ring flange 31 and the ring flange 4, and be connected through the bolt and nut, thereby realize the rotation connection of spherical cavity and spherical section of thick bamboo 30 when ring flange 31 and ring flange 4 are connected.

Referring to fig. 2, 5, 7 and 8, the sliding sleeve on the outer side wall of the core tube 1 is provided with a connecting sleeve 10, the vertical section of the connecting sleeve 10 is of a U-shaped structure, one side outer side wall of the core tube 1, which is close to the upper spherical cavity, is provided with an annular compensation chute 11, one end of the sleeve 2, which is far away from the upper spherical cavity, is provided with a convex ring 12, the outer side walls of the U-shaped structure outer side walls of the connecting sleeve 10 and the outer side walls of the convex ring 12 are respectively provided with a trapezoid block 13 and a clamping block group which are vertically and symmetrically arranged, each clamping block group consists of right-angled triangular blocks 14 which are symmetrically arranged at two sides of the trapezoid block 13, a sealing rubber ring is arranged between the convex ring 12 and the vertical section, which is structurally adjacent to the connecting sleeve 10, and the vertical section, which is structurally adjacent to the convex ring 12 and the connecting sleeve 10, is connected through a sleeved clamping sleeve 15, one end of the connecting sleeve 10, which is far away from the clamping sleeve 15, is jointly sleeved with the compensation chute 11 of the core tube 1, is provided with a clamp sleeve 16 which axially slides along the compensation chute 11, and the trapezoid blocks 13, and the triangular blocks 14 are respectively matched with the trapezoid blocks 15.

Two second flanges 4 are respectively sleeved on the outer side walls of the spherical cavities of the core tube 1 and the sleeve 2, then the core tube 1, the sleeve 2, the connecting sleeve 10 and the bidirectional telescopic tube 62 are assembled, then the convex ring 12 is connected with the vertical section of the connecting sleeve 10, which is adjacent to the U-shaped structure, through the clamping sleeve 15, and the compensating chute 11 of the core tube 1 is connected with the vertical section of the connecting sleeve 10, which is far away from the side of the clamping sleeve 15, through the clamping sleeve 16.

Referring to fig. 1, a sealing group 6 sleeved on the core tube 1 and the sleeve 2 is installed between the two second flanges 4, the sealing group 6 is located between two spherical cavities on the core tube 1 and the sleeve 2, the sealing group 6 comprises a detachable single-movement telescopic tube 60 installed on opposite sides of the two second flanges 4 and a bidirectional telescopic tube 62 connected between the two single-movement telescopic tubes 60 through a connecting assembly 61, the middle part of the bidirectional telescopic tube 62 is an annular sleeve 63, and a damping assembly 64 is installed between the annular sleeve 63 and the connecting sleeve 10.

The single-movement telescopic pipes 60 on two sides are connected with the two-way telescopic pipes 62 through the connecting assembly 61, so that the part of the fuel pipeline compensator between the two second flanges 4 is sealed, dust and impurities are prevented from falling into gaps at the joints of the structures when the fuel pipeline compensator is used for a long time, the movement of the fuel pipeline compensator during axial compensation and angle compensation is influenced in the later use process, the safety in the use operation process is improved, and the damage caused by the fact that the fuel pipeline compensator is touched by a person during use or detection is prevented.

When the sleeve 2 moves relative to the core tube 1, the clamp sleeve 16 moves in the compensation chute 11, and the convex ring 5 at the end of the compensation chute 11 and one end of the compensation chute 11 far away from the convex ring 5 both play a limiting role on the movement of the clamp sleeve 16, so that the telescopic compensation stroke is limited.

Under the condition that the angle compensation is not regulated, the first flange plate 31 and the second flange plate 4 are respectively positioned at two sides of the highest point of the spherical surface outside the spherical cavity, so that the spherical barrel 30 is prevented from falling off from the spherical cavity of the core tube 1 and the sleeve 2, when the angle compensation is required, the connecting shell 3 can rotate 360 degrees around the axis of the core tube 1, offset regulation can be further carried out, the axis of the connecting shell 3 can deflect in a certain range relative to the axis of the core tube 1, the convex ring 5 is positioned at the transition joint of the outer side surface of the spherical cavity and the core tube 1 or the straight tube part of the sleeve 2 and is close to the corresponding second flange plate 4, and in the rotating process of the connecting shell 3, the edge of the second flange plate 4 is matched with the corresponding convex ring 5 to limit the rotating range.

Referring to fig. 2, 6 and 8, the clamping sleeve 15 is composed of two symmetrical half-ring covers 150 and bolts and nuts connecting the two half-ring covers 150, the vertical section of the half-ring cover 150 is in a U-shaped structure, the end faces of the trapezoid blocks 13 on the two vertical sections of the U-shaped structure of the connecting cylinder sleeve 10, which are close to each other, are inclined surfaces, the end faces of the trapezoid blocks 13 on the protruding ring 12, which are far away from the connecting cylinder sleeve 10, are inclined surfaces, trapezoid clamping grooves and triangular clamping grooves are formed in the half-ring cover 150, the trapezoid clamping grooves are matched with the trapezoid blocks 13 in a clamping manner, the triangular clamping grooves are matched with the triangular blocks 14 in a clamping manner, and right angles of the triangular blocks 14 face the half-ring cover 150 matched with the triangular blocks.

The vertical section of the connecting sleeve 10 is aligned with the raised ring 12 and tightly abutted, then two semi-ring covers 150 are sleeved on the vertical section of the connecting sleeve 10 and the raised ring 12 from the upper side and the lower side, trapezoid blocks 13 and triangular blocks 14 on the upper side and the lower side respectively enter corresponding trapezoid clamping grooves and triangular clamping grooves in the semi-ring covers 150, right angles of the triangular blocks 14 face the semi-ring covers 150 so that the semi-ring covers 150 are smoothly clamped on the vertical section of the connecting sleeve 10 and the raised ring 12, and then the upper semi-ring covers 150 and the lower semi-ring covers 150 are fixed through bolts and nuts, so that the connecting sleeve 10 and the raised ring 12 are prevented from rotating in the clamping sleeve 15, and the stability and the tightness of connection between the connecting sleeve 10 and the raised ring 12 are affected.

When the clamp sleeve 16 and the clamping sleeve 15 are fixed, the trapezoid blocks 13 and the triangular blocks 14 are inserted into the corresponding trapezoid clamping grooves and the triangular clamping grooves, so that the connecting cylinder sleeve 10 and the bulge loop 12 are prevented from rotating in the corresponding clamp sleeve 16 and the clamping sleeve 15, and the stability and the tightness of the connection between the connecting cylinder sleeve 10 and the bulge loop 12 as well as between the connecting cylinder sleeve and the bulge loop 15 are prevented from being influenced.

Referring to fig. 2 and 7, the collar 16 is composed of two fixing covers 160 symmetrically arranged up and down and bolts and nuts connecting the two fixing covers 160, the vertical section of the fixing cover 160 is in a u-shaped structure, the length of the vertical section of the fixing cover 160 far away from the half-ring cover 150 is greater than that of the other vertical section, the sliding sleeve is arranged on the compensation chute 11, and a trapezoid clamping groove and a triangle clamping groove are formed in the fixing cover 160.

Two fixing covers 160 which are vertically and symmetrically arranged are sleeved on the vertical section of the U-shaped structure of the connecting sleeve 10, which is far away from the semi-ring cover 150, and the compensation chute 11 of the core tube 1, and the end parts of the convex ring 5, which are close to the semi-ring cover 150, of the compensation chute 11 limit the axial movement of the vertical section of the U-shaped structure of the fixing cover 160, which is far away from the semi-ring cover 150, so that the telescopic compensation stroke is limited.

Referring to fig. 1, 3, 7 and 8, the connecting assembly 61 includes a pull moving cylinder 610 mounted on the single moving telescopic tube 60, an inserting slot is formed on an end surface of the pull moving cylinder 610 far away from the single moving telescopic tube 60, a pull receiving cylinder 611 is inserted into the inserting slot, the pull receiving cylinder 611 is connected with the pull moving cylinder 610 through a screw after the pull receiving cylinder 611 is inserted into the inserting slot, protruding cavities 612 symmetrically arranged along the circumferential direction of the pull receiving cylinder 611 are formed on the pull receiving cylinder 611 and the pull moving cylinder 610, the protruding cavities 612 are used for storing a connecting part of the clamping sleeve 15 and a connecting part of the clamping sleeve 16, the bidirectional telescopic tube 62 is connected between the two pull receiving cylinders 611, and the single moving telescopic tube 60, the bidirectional telescopic tube 62 and the annular sleeve 63 are all made of rubber materials.

Referring to fig. 8, the inner wall of the pulling cylinder 610 is provided with limiting plates 622 uniformly distributed along the circumferential direction thereof, and the inner wall of the receiving and pulling cylinder 611 is provided with abutting pieces 621 through L-shaped bars 620, and the abutting pieces 621 are uniformly distributed along the circumferential direction of the receiving and pulling cylinder 611.

After the core tube 1, the sleeve 2 and the connecting cylinder sleeve 10 are connected and fixed, the pulling and moving cylinders 610 on two sides are pulled to move towards the pulling and moving cylinders 611 until the limiting plates 622 are abutted against the corresponding clamping sleeves 15 and the clamping sleeves 16, then the pulling and moving cylinders 611 are pulled to move towards the pulling and moving cylinders 610, the pulling and moving cylinders 611 are inserted into the pulling and moving cylinders 610 and are connected through screws, so that the part of the fuel pipeline compensator between the two second flanges 4 is sealed, dust and impurities are prevented from falling into gaps at the connecting positions of the structures when the fuel pipeline compensator is used for a long time, and the axial compensation and the movement of the fuel pipeline compensator during angle compensation are influenced in the later use process.

The limiting plate 622 and the abutting piece 621 limit the movement of the pulling cylinder 610 and the retracting cylinder 611 respectively, so that the connection parts of the bidirectional telescopic pipe 62 and the single-movement telescopic pipe 60, the clamping sleeve 15 and the clamping sleeve 16 are prevented from collision.

Referring to fig. 8, the shock absorbing assembly 64 includes a telescopic spring rod 640 installed on the inner wall of the annular sleeve 63 and uniformly distributed along the circumferential direction thereof, a supporting block 641 is installed on the telescopic spring rod 640, a counter bore 642 uniformly distributed along the circumferential direction thereof and engaged with the supporting block 641 is provided on the outer wall of the connecting sleeve 10, a sliding hole 643 is provided on the annular sleeve 63, a lifting plate 644 is slidably connected in the sliding hole 643, the lifting plate 644 is connected with the supporting block 641 by a rope, a screw 645 is rotationally connected in the sliding hole 643, the screw 645 is connected with the lifting plate 644 by a threaded engagement manner, and the screw 645 penetrates through the annular sleeve 63.

Before the connecting sleeve 10 is sleeved on the core tube 1, the bidirectional telescopic tube 62 is sleeved on the connecting sleeve 10, then the abutting block 641 is aligned with the counter bore 642, then the screw 645 is rotated, so that the lifting plate 644 does not pull a rope any more, the abutting block 641 is inserted into the counter bore 642 under the elastic force of the telescopic spring rod 640, the bidirectional telescopic tube 62 is supported on the connecting sleeve 10, and after the bidirectional telescopic tube 62 is connected with the single-movement telescopic tube 60, the abutting block 641, the counter bore 642 and the telescopic spring rod 640 are matched for shock absorption protection of the fuel line compensator, and breakage of the fuel line compensator caused by shock is prevented.

During assembly, firstly, the core tube 1, the sleeve 2, the connecting sleeve 10 and the bidirectional telescopic tube 62 are assembled, then, the core tube 1, the sleeve 2 and the connecting sleeve 10 are connected through the clamping sleeve 15 and the clamping sleeve 16 in a clamping manner, the trapezoid block 13 and the triangular block 14 are inserted into the corresponding trapezoid clamping groove and the triangular clamping groove, and the connecting sleeve 10 and the bulge loop 12 are prevented from rotating in the corresponding clamping sleeve 16 and the clamping sleeve 15, so that the stability and the tightness of connection between the connecting sleeve 10 and the bulge loop 12 and between the connecting sleeve 10 and the compensating chute 11 are influenced.

Finally, the single-movement telescopic pipes 60 on two sides are connected with the bidirectional telescopic pipes 62 through the connecting assembly 61, so that the part of the fuel pipeline compensator between the two second flanges 4 is sealed, dust and impurities are prevented from falling into gaps at the joints of the structures when the fuel pipeline compensator is used for a long time, the movement of the fuel pipeline compensator during axial compensation and angle compensation is influenced in the later use process, the safety in the use operation process is improved, the problem of damage caused by manual mistaken touch to the fuel pipeline compensator is prevented, and the shock absorbing assembly 64 on the annular sleeve 63 can reduce the impact force of external factors on the fuel pipeline compensator and prevent the fuel pipeline compensator from breaking.

In use, the end of the connection housing 3 is connected to a connection pipe of the fuel pipe.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not limited in scope by the present utility model, so that all equivalent changes according to the structure, shape and principle of the present utility model are covered in the scope of the present utility model.

Claims (6)

1. A fuel oil pipeline compensator comprising: core tube (1) and sleeve (2), core tube (1) and sleeve (2) are hollow pipeline, sleeve (2) cover is in the outside of core tube (1) one end, sleeve (2) are followed the axis direction of core tube (1) and are slided, the one end that core tube (1) and sleeve (2) kept away from mutually is spherical cavity structure, the one end that core tube (1) and sleeve (2) are close to mutually is straight tube structure, core tube (1) and sleeve (2) spherical cavity keep away from the equal cover of rotating of one end lateral wall mutually and are equipped with coupling housing (3), coupling housing (3) comprise spherical section of thick bamboo (30) of spherical structure and flange (31) of being connected on spherical section of thick bamboo (30), the outer lateral wall of core tube (1) and sleeve (2) spherical cavity all rotates the cover and is equipped with No. two flange (4), no. flange (31) are located the both sides of spherical cavity arcwall highest point respectively with No. flange (4), core tube (1) and sleeve (2) are close to spherical cavity department and all are provided with bulge loop (5), its characterized in that:

the outer side wall sliding sleeve of the core tube (1) is provided with a connecting sleeve (10), the vertical section of the connecting sleeve (10) is of a U-shaped structure, one side outer side wall of the core tube (1) close to an upper spherical cavity of the connecting sleeve is provided with an annular compensating chute (11), one end of the sleeve (2) far away from the upper spherical cavity of the connecting sleeve is provided with a convex ring (12), the outer side walls of the vertical sections of the connecting sleeve (10) and the outer side walls of the convex ring (12) are respectively provided with a trapezoid block (13) and a clamping limit block group which are vertically symmetrically arranged, each clamping limit block group consists of right-angle triangular blocks (14) symmetrically arranged at two sides of the trapezoid block (13), the convex ring (12) is connected with the adjacent vertical sections of the connecting sleeve (10) through a sleeved clamping sleeve (15), one end of the connecting sleeve (10) far away from the clamping sleeve (15) and the compensating chute (11) of the core tube (1) are jointly sleeved with a clamp sleeve (16) which axially slides along the compensating chute (11), and the clamp sleeve (16) and the clamping blocks (15) are respectively provided with triangular grooves (14) which are matched with the trapezoid blocks (13);

the two sealing groups (6) sleeved on the core tube (1) and the sleeve (2) are arranged between the two second flange plates (4), the sealing groups (6) are located between the two spherical cavities on the core tube (1) and the sleeve (2), each sealing group (6) comprises two single-movement telescopic tubes (60) which are detachably connected with the opposite surfaces of the two second flange plates (4) and two bidirectional telescopic tubes (62) which are connected with the two single-movement telescopic tubes (60) through connecting assemblies (61), the middle parts of the bidirectional telescopic tubes (62) are annular sleeves (63), and damping assemblies (64) are arranged between the annular sleeves (63) and the connecting cylinder sleeves (10).

2. A fuel line compensator according to claim 1, characterized by: the clamping sleeve (15) is composed of an upper half ring cover (150) and a lower half ring cover (150) which are symmetrically arranged, and bolts and nuts for connecting the two half ring covers (150), wherein the vertical section of the half ring cover (150) is of a U-shaped structure, the end faces, close to each other, of the trapezoidal blocks (13) on the two vertical sections of the U-shaped structure of the connecting cylinder sleeve (10) are inclined planes, the end faces, far away from the connecting cylinder sleeve (10), of the trapezoidal blocks (13) on the protruding ring (12) are inclined planes, trapezoid clamping grooves and triangular clamping grooves are formed in the half ring cover (150), the trapezoid clamping grooves are matched with the trapezoid blocks (13) in a clamping mode, the triangular clamping grooves are matched with the triangular blocks (14) in a clamping mode, and right angles of the triangular blocks (14) face the half ring cover (150) matched with the triangular blocks.

3. A fuel line compensator according to claim 2, characterized by: the clamp sleeve (16) is composed of an upper fixing cover (160) and a lower fixing cover (160) which are symmetrically arranged, and bolts and nuts for connecting the two fixing covers (160), wherein the vertical section of the fixing cover (160) is of a U-shaped structure, the U-shaped structure of the fixing cover (160) is far away from the half-ring cover (150) and is longer than the other vertical section, the vertical section is sleeved on the compensation chute (11) in a sliding manner, and a trapezoid clamping groove and a triangular clamping groove are formed in the fixing cover (160).

4. A fuel line compensator according to claim 1, characterized by: the connecting assembly (61) comprises a pulling and moving cylinder (610) arranged on the single-moving telescopic tube (60), an inserting groove is formed in the end face of the pulling and moving cylinder (610) away from the single-moving telescopic tube (60), a pulling and retracting cylinder (611) is inserted into the inserting groove, the pulling and retracting cylinder (611) is connected with the pulling and moving cylinder (610) through a screw, protruding cavities (612) symmetrically arranged along the circumferential direction of the pulling and retracting cylinder (611) are formed in the pulling and retracting cylinder (611) and the pulling and moving cylinder (610), the protruding cavities (612) are used for storing the connecting part of the clamping sleeve (15) and the connecting part of the clamping sleeve (16), the bidirectional telescopic tube (62) is connected between the two pulling and retracting cylinders (611), and the single-moving telescopic tube (60), the bidirectional telescopic tube (62) and the annular sleeve (63) are all made of rubber materials.

5. A fuel line compensator according to claim 4, wherein: the shock-absorbing assembly (64) comprises a telescopic spring rod (640) which is arranged on the inner wall of an annular sleeve (63) and uniformly distributed along the circumferential direction of the annular sleeve, a supporting block (641) is arranged on the telescopic spring rod (640), a counter bore (642) which is uniformly distributed along the circumferential direction of the connecting cylinder sleeve (10) and is matched with the supporting block (641) in a clamping manner is formed in the outer wall of the connecting cylinder sleeve, a sliding hole (643) is formed in the annular sleeve (63), a lifting plate (644) is connected in the sliding hole (643) in a sliding manner, the lifting plate (644) is connected with the supporting block (641) through a rope, a screw rod (645) is connected with the lifting plate (644) in a rotating manner, and the screw rod (645) penetrates through the annular sleeve (63).

6. A fuel line compensator according to claim 4, wherein: limiting plates (622) which are uniformly distributed along the circumferential direction of the inner wall of the pulling barrel (610) are arranged on the inner wall of the pulling barrel (611), abutting pieces (621) are arranged on the inner wall of the pulling barrel (611) through L-shaped strips (620), and the abutting pieces (621) are uniformly distributed along the circumferential direction of the pulling barrel (611).