CN220303074U - High leakproofness nonmetal expansion joint - Google Patents

Abstract

The utility model relates to a high-tightness nonmetal expansion joint which comprises two connecting pipes and two connecting plates, wherein the two connecting pipes are symmetrically arranged, the tops of the connecting pipes are fixedly connected with vertical plates, the interiors of the vertical plates are rotationally connected with rotating pipes, the two connecting plates are respectively arranged on two sides of the two connecting pipes, and first cavities are formed in the interiors of the rotating pipes. According to the utility model, the screw rod at the corresponding position is driven to move by rotating the rotary pipe, when the screw rod moves, the connecting plate is driven to move, and in the moving process of the connecting plate, the connecting plate drives the communication sleeve and the sealing gum cover to move, so that the working quality is greatly improved compared with a traditional device, the sealing gum cover is contacted with an inclined plane, and the expansion joint belongs to a device which moves frequently, so that the sealing gum cover can be worn.

Description

High leakproofness nonmetal expansion joint

Technical Field

The utility model relates to the technical field of expansion joints, in particular to a high-tightness nonmetal expansion joint.

Background

Expansion joints refer to flexible elements that effectively function to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, the thermal expansion difference of the tube and the shell caused by different wall temperatures can be compensated, and the axial load of the tube and the shell is reduced, so that the temperature difference stress of the tube, the tube plate and the shell is reduced, and the damage caused by strength damage, instability damage and tube pull-out damage is avoided. The expansion joint has a plurality of types, and commonly used structures such as wave form, ring plate welding and clamping type are adopted, wherein the wave form expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

Through retrieval, chinese patent discloses a high-tightness expansion joint (grant bulletin No. CN 215635683U), the technology comprises a corrugated pipe, two ends of the corrugated pipe are communicated with a connecting flange, a connecting pipe is arranged in the connecting flange, the end part of the connecting pipe, which is positioned at the outer side of the corrugated pipe, is provided with an outer side inclined part, and the inner wall of the connecting flange is provided with the connecting pipe, the outer side inclined part of the connecting pipe can be inserted into the connecting pipe, and the inner side inclined part of the connecting pipe is positioned in the corrugated pipe and is sealed with the connecting pipe, so that the problem that the corrugated pipe and the connecting flange are easy to leak due to weaker connecting part can be avoided, and the sealing of the connecting pipe is improved;

and the person skilled in the art proposes another nonmetal expansion joint with high tightness, and solves the problem of low tightness of the expansion joint by another technical scheme.

Disclosure of Invention

In view of the foregoing problems in the prior art, a primary object of the present utility model is to provide a nonmetallic expansion joint with high sealing performance.

The technical scheme of the utility model is as follows: the utility model provides a nonmetal expansion joint of high leakproofness, includes two connecting pipes and two connecting plates, two the symmetry setting of connecting pipe, the equal fixedly connected with riser in top of connecting pipe, the inside of riser is all rotated and is connected with the commentaries on classics pipe, two the connecting plate sets up respectively in the both sides of two connecting pipes, the inside of changeing the pipe has all been seted up first cavity, two equal symmetrical fixedly connected with lead screws of one side that two connecting plates are close to, the lead screw all extends to the inside that corresponds first cavity and with change pipe threaded connection, the one end of lead screw just is located the equal fixedly connected with first baffle of inside of first cavity, the inner wall sliding connection of first baffle and first cavity.

As a preferred implementation mode, the second cavity is all offered to its inside that is located two first cavitys and is close to one side, two sliding connection has the connecting rod between the second cavity, the both ends of connecting rod just are located the inside that corresponds the second cavity and all fixedly connected with second baffle, the second baffle all with the inner wall sliding connection who corresponds the second cavity.

As a preferred implementation mode, two one sides that the connecting plate is close to are all fixedly connected with the communication sleeve, the one end that the communication sleeve is close to all extends to the inside of corresponding connecting pipe and with corresponding connecting pipe sliding connection, the outside that the communication sleeve is located the connecting pipe is all fixedly connected with sealed gum cover.

As a preferable implementation mode, the inner parts of the connecting pipes are provided with inclined planes matched with the sealing rubber sleeves, and the outer sides of the sealing rubber sleeves are contacted with the inclined planes.

As a preferred embodiment, a first connecting hose is fixedly connected between the two adjacent sides of the communication sleeve.

As a preferred embodiment, a second connecting hose is fixedly connected between the two connecting pipes on the side close to each other.

As a preferred embodiment, the connecting plates are provided with mounting holes at equal intervals inside.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the utility model, the screw rod at the corresponding position is driven to move by rotating the rotary pipe, when the screw rod moves, the connecting plate is driven to move, and in the moving process of the connecting plate, the connecting plate drives the communication sleeve and the sealing rubber sleeve to move, so that the operation quality is greatly improved compared with a traditional device, the sealing rubber sleeve is contacted with an inclined plane, and the expansion joint belongs to a device which moves frequently, so that the sealing rubber sleeve is worn.

Drawings

FIG. 1 is an isometric view of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is an enlarged view at B in fig. 2.

Legend description: 1. a connecting pipe; 2. a connecting plate; 3. a vertical plate; 4. a rotary pipe; 5. a first cavity; 6. a screw rod; 7. a first baffle; 8. a second cavity; 9. a connecting rod; 10. a second baffle; 11. a communication sleeve; 12. sealing the rubber sleeve; 13. a first connection hose; 14. a second connection hose; 15. and (5) mounting holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

The utility model will be further described with reference to the drawings and the specific embodiments

Examples

As shown in fig. 1 to 4, the present utility model provides a technical solution: the device comprises two connecting pipes 1 and two connecting plates 2, wherein the two connecting pipes 1 are symmetrically arranged, the tops of the connecting pipes 1 are fixedly connected with vertical plates 3, the interiors of the vertical plates 3 are rotationally connected with rotating pipes 4, the two connecting plates 2 are respectively arranged on two sides of the two connecting pipes 1, a first cavity 5 is formed in the interiors of the rotating pipes 4, two screw rods 6 are symmetrically and fixedly connected to one sides, close to the two connecting plates 2, of the two connecting plates, the screw rods 6 are respectively extended to the interiors of the corresponding first cavities 5 and are in threaded connection with the rotating pipes 4, and through the arrangement, the screw rods 6 at corresponding positions can be driven to move by rotating the rotating pipes 4;

one end of the screw rod 6 is fixedly connected with a first baffle 7 which is positioned in the first cavity 5, the first baffle 7 is in sliding connection with the inner wall of the first cavity 5, and the screw rod 6 can be prevented from being separated from the first cavity 5 by the aid of the first baffle 7;

wherein, the inside of changeing tub 4 is located the one side that two first cavitys 5 are close to and has all been offered second cavity 8, sliding connection has connecting rod 9 between two second cavities 8, the both ends of connecting rod 9 just are located the inside equal fixedly connected with second baffle 10 that corresponds second cavity 8, second baffle 10 all with correspond the inner wall sliding connection of second cavity 8, through above-mentioned setting, when this device wholly takes place the expansion deformation, changeing tub 4 can retract through second cavity 8, guarantee can not influence expansion joint normal operating.

Wherein, the equal fixedly connected with intercommunication sleeve 11 of one side that two connecting plates 2 are close to mutually, the one end that intercommunication sleeve 11 is close to all extends to the inside that corresponds connecting pipe 1 and with correspond connecting pipe 1 sliding connection, and the equal fixedly connected with seal gum cover 12 in the outside that intercommunication sleeve 11 is located connecting pipe 1 is inside, through above-mentioned setting, can be connected through connecting plate 2 with intercommunication sleeve 11 and seal gum cover 12.

Wherein, the inclined plane that cooperation seal gum cover 12 used has all been seted up to the inside of connecting pipe 1, and the outside and the inclined plane of seal gum cover 12 contact, through above-mentioned setting, can utilize the cooperation of seal gum cover 12 and inclined plane to make connecting pipe 1 and communication sleeve 11 carry out sealing connection.

Wherein, fixedly connected with first coupling hose 13 between the side that two intercommunication sleeves 11 are close to, first coupling hose 13 is main gas-supply pipe.

Wherein, fixedly connected with second coupling hose 14 between the side that two connecting pipes 1 are close to mutually, second coupling hose 14 can play the condition that shields light, avoid hard thing direct contact for first coupling hose 13 to extend first coupling hose 13's life, when first coupling hose 13 takes place to break in addition, second coupling hose 14 also can use as emergent pipeline.

Wherein, the inside of connecting plate 2 is equidistant to have seted up mounting hole 15, through above-mentioned setting, is convenient for this device to install better.

Working principle:

in the actual use process, a user can drive the screw rod 6 at the corresponding position to move by rotating the rotary pipe 4, when the screw rod 6 moves, the connecting plate 2 is driven to move, and the connecting plate 2 can drive the communication sleeve 11 and the sealing rubber sleeve 12 to move in the moving process, so that the working quality is greatly improved compared with a traditional device, the sealing rubber sleeve 12 is contacted with an inclined plane, and the expansion joint belongs to a device which moves frequently, so that the sealing rubber sleeve 12 can be worn, and through the arrangement, even if the sealing rubber sleeve 12 is worn, the user can still keep ideal sealing performance by adjusting the sealing rubber sleeve 12;

and this device has still set up two coupling hoses, and wherein first coupling hose 13 is main gas-supply pipe, and second coupling hose 14 can play the condition that shields light, avoid hard thing direct contact for first coupling hose 13 to extend first coupling hose 13's life, and when first coupling hose 13 takes place to break the back, second coupling hose 14 also can regard as emergent pipeline to use, through this kind of setting, can avoid like traditional device generally, after the pipeline takes place to break, also need not immediately shutdown maintenance yet, can guarantee to have more sufficient preparation time.

Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (7)

1. The utility model provides a nonmetal expansion joint of high leakproofness, includes two connecting pipes (1) and two connecting plates (2), its characterized in that: the two symmetry setting of connecting pipe (1), the equal fixedly connected with riser (3) in top of connecting pipe (1), the inside of riser (3) is all rotated and is connected with commentaries on classics pipe (4), two connecting plate (2) set up respectively in the both sides of two connecting pipes (1), first cavity (5) have all been seted up to the inside of commentaries on classics pipe (4), two equal symmetrical fixedly connected with lead screw (6) in one side that two connecting plates (2) are close to each other, lead screw (6) all extend to the inside that corresponds first cavity (5) and with commentaries on classics pipe (4) threaded connection, the one end of lead screw (6) just is located the equal fixedly connected with first baffle (7) of inside of first cavity (5), the inner wall sliding connection of first baffle (7) and first cavity (5).

2. The high-tightness nonmetal expansion joint of claim 1, wherein: the inside that changes pipe (4) is located two first cavitys (5) and all has offered second cavity (8) in one side that is close to mutually, two sliding connection has connecting rod (9) between second cavity (8), the both ends of connecting rod (9) just are located the inside that corresponds second cavity (8) and all fixedly connected with second baffle (10), second baffle (10) all with the inner wall sliding connection who corresponds second cavity (8).

3. The high-tightness nonmetal expansion joint of claim 1, wherein: two one sides that connecting plate (2) are close to all fixedly connected with intercommunication sleeve (11), the one end that intercommunication sleeve (11) is close to all extends to the inside of corresponding connecting pipe (1) and with corresponding connecting pipe (1) sliding connection, all fixedly connected with seal gum cover (12) in the outside that intercommunication sleeve (11) are located connecting pipe (1) inside.

4. The high-tightness nonmetal expansion joint of claim 1, wherein: the inside of connecting pipe (1) has all been seted up the inclined plane that cooperation seal gum cover (12) used, the outside of seal gum cover (12) contacts with the inclined plane.

5. The high-tightness nonmetal expansion joint of claim 1, wherein: a first connecting hose (13) is fixedly connected between the sides of the two communicating sleeves (11) which are close to each other.

6. The high-tightness nonmetal expansion joint of claim 1, wherein: a second connecting hose (14) is fixedly connected between the two sides of the two connecting pipes (1) which are close to each other.

7. The high-tightness nonmetal expansion joint of claim 1, wherein: mounting holes (15) are formed in the connecting plate (2) at equal intervals.