CN217108749U

CN217108749U - Pressure balance type expansion joint with protection function

Info

Publication number: CN217108749U
Application number: CN202220520032.4U
Authority: CN
Inventors: 徐升
Original assignee: Jiangsu Dongsheng Machinery Manufacturing Co ltd
Current assignee: Jiangsu Dongsheng Machinery Manufacturing Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-08-02
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a pressure balance type expansion joint with protection function, which comprises a basic component and a protection component, wherein the basic component comprises a pipe body, the top of the pipe body is provided with an upper flange, the bottom of the pipe body is provided with a lower flange, and the middle part and the left and right sides of the pipe body are both provided with corrugated pipes; the protection assembly comprises a lower protection device, an upper protection device is sleeved outside the upper part of the corrugated pipe, and the upper protection device is the same as the lower protection device; the upper portion protection device comprises a supporting shaft, connecting strips are arranged at the top and the bottom of the supporting shaft, a protection rod is arranged at the top of the upper portion of each connecting strip, and a connecting protection layer is arranged on one side, facing the corrugated pipe, of the supporting shaft. This take pressure balance type expansion joint of protect function possesses the outside bellows outside of expansion joint and has installed the protection and install, plays the guard action to the bellows when using the expansion, strengthens advantages such as practicality of expansion joint.

Description

Pressure balance type expansion joint with protection function

Technical Field

The utility model relates to a pressure balance type expansion joint technical field specifically is a take protect function's pressure balance type expansion joint.

Background

The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on the tube body of a fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, can compensate the thermal expansion difference generated by the tube and the tube body due to different wall temperatures, and reduces the axial load of the tube and the tube body, thereby reducing the temperature difference stress of the tube, the tube plate and the tube body, avoiding causing strength damage, instability damage and tube pull-off damage, and having more types of expansion joints, commonly used structures such as wave shapes, ring plate welding, shell clamping and the like, wherein the wave-shaped expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

Pressure balance type expansion joint on the market, most outside structures are fairly simple, and the outside bellows of expansion joint lacks protection device when using, causes the damage of expansion joint because of the factor of external force easily, reduces the practicality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a take protect function's pressure balance type expansion joint possesses the outside bellows of expansion joint and has installed the protection and install, plays the guard action to the bellows when using the expansion, strengthens advantages such as the practicality of expansion joint, has solved the pressure balance type expansion joint on the face, and most outside structures are fairly simple, and the outside bellows of expansion joint lacks protection device when using, easily because the factor of external force causes the damage of expansion joint, reduces the problem of practicality.

In order to achieve the above object, the utility model provides a following technical scheme: the pressure balance type expansion joint with the protection function comprises a basic assembly and a protection assembly, wherein the basic assembly comprises a pipe body, an upper flange is arranged at the top of the pipe body, a lower flange is arranged at the bottom of the pipe body, and corrugated pipes are arranged in the middle and on the left side and the right side of the pipe body.

The protection assembly comprises a lower protection device, an upper protection device is sleeved outside the upper portion of the corrugated pipe, and the upper protection device is the same as the lower protection device.

The upper portion protection device includes the back shaft, the connecting strip has all been installed with the bottom to the back shaft top, the fender rod has been installed at the top on connecting strip upper portion, the connection protective layer has been installed towards one side of bellows to the back shaft, the dead lever has been inserted to the back shaft bottom, the dead lever left and right sides all overlaps and is equipped with the connecting block, the middle part back shaft has all been installed to the middle part both sides of fender rod bottom, the middle part connection protective layer has been installed towards one side of bellows to the middle part back shaft, the protection node has been installed towards one side of bellows on connection protective layer upper portion.

The protection components are in a symmetrical structure based on the center line of the protection rod.

Further, an inlet end pipe is arranged on the left side of the pipe body, and an outlet end pipe is arranged on the right side of the pipe body.

Further, a guide cylinder is sleeved at the top of the pipe body and fixedly connected with the upper flange.

Furthermore, the top of the upper flange is provided with a screw, and a fixing cap is sleeved outside the screw.

Furthermore, connecting strip and back shaft fixed connection, connecting strip quantity is eight.

Furthermore, small connecting strips are arranged at the top and the bottom of the middle supporting shaft, and the size of each connecting strip is six times that of each small connecting strip.

Further, the connection protection layer is fixedly connected with the protection node.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this take pressure balance type expansion joint of protect function possesses the outside bellows outside of expansion joint and has installed the protection and install, plays the guard action to the bellows when using the expansion, strengthens advantages such as practicality of expansion joint.

2. This take pressure balance type expansion joint of protect function, the import end pipe that possesses the body all has installed the filter layer with the exit end inside, can filter the sewage of the internal transmission of body.

Drawings

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

fig. 2 is a schematic view of the protection device of the present invention.

In the figure: 1 upper flange, 2 pipe bodies, 3 corrugated pipes, 4 lower flanges, 5 upper protection devices, 501 protection rods, 502 protection nodes, 503 connection protection layers, 504 support shafts, 505 connecting blocks, 506 fixing rods, 507 middle support shafts, 508 middle connection protection layers, 509 connecting strips and 6 lower protection devices.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the pressure balance type expansion joint with protection function in this embodiment includes a basic assembly and a protection assembly, where the basic assembly includes a pipe body 2, an upper flange 1 is installed on the top of the pipe body 2, a lower flange 4 is installed on the bottom of the pipe body 2, both the upper flange 1 and the lower flange 4 support and fix the pipe body 2, bellows 3 are installed on the middle and left and right sides of the pipe body 2, and the bellows 3 is a key connection structure for transmitting the internal pressure of the pipe body 2.

In this embodiment, the inlet end pipe is installed on the left side of the pipe body 2, the outlet end pipe is installed on the right side of the pipe body 2, and the inlet end pipe and the outlet end pipe are designed to facilitate the inlet and outlet of sewage.

In this embodiment, 2 top covers of body are equipped with the draft tube, and 2 transmission rivers of body are assisted in the design of draft tube, draft tube and 1 fixed connection of upper portion flange.

In this embodiment, the top of the upper flange 1 is provided with screws, and fixing caps are sleeved outside the screws, so that the screws can fix the upper flange 1 more firmly.

The protection assembly comprises a lower protection device 6, an upper protection device 5 is sleeved outside the upper part of the corrugated pipe 3, and the upper protection device 5 is the same as the lower protection device 6.

The upper protection device 5 comprises a support shaft 504, the support shaft 504 plays a role of supporting a stable protection component, connecting strips 509 are arranged at the top and the bottom of the support shaft 504, the connecting strips 509 are designed to enable the support shaft 504 and the protection rods 501 to be tightly connected, the protection rods 501 are arranged at the top of the upper portions of the connecting strips 509, the protection rods 501 are important structures for protecting the corrugated pipes 3, a connection protection layer 503 is arranged on one side, facing the corrugated pipes 3, of the support shaft 504, the protection layer 503 can effectively protect the corrugated pipes 3 when the expansion joints collide and vibrate, a fixing rod 506 is inserted at the bottom of the support shaft 504, the structure of the protection component is more complete through the fixing rods 506, connecting blocks 505 are sleeved on the left side and the right side of each fixing rod 506, so that the fixing rods 506 are more firmly connected with the support shaft 504, middle support shafts 507 are arranged on both sides of the middle of the bottom of the protection rods 501, and a middle connection protection layer 508 is arranged on one side, facing the corrugated pipes 3, of the middle support shafts 507, the protection layer 508 is a key for protecting the corrugated tube 3 in the middle of the tube body 2, and the protection node 502 is installed on the side of the upper portion of the connection protection layer 503 facing the corrugated tube 3.

The protection components are in a symmetrical structure based on the center line of the protection rod 501.

In this embodiment, the connecting bars 509 are fixedly connected to the support shaft 504, the connecting bars 509 can assist the support shaft 504 to be connected to the protection lever 501, and the number of the connecting bars 509 is eight.

In this embodiment, the top and the bottom of the middle support shaft 507 are both provided with small connecting strips, the small connecting strips can assist the middle support shaft 507 to be connected with the protection rod 501, and the connecting strips 509 are six times of the volume of the small connecting strips.

In this embodiment, the connection protection layer 503 is fixedly connected to the protection node 502, and the design of the connection protection layer 503 enhances the pressure resistance of the protection assembly.

The working principle of the above embodiment is as follows:

the middle part and the left and the right sides of the pipe body 2 are both provided with corrugated pipes 3, when the corrugated pipes 3 outside the expansion joint are collided, the top of the upper part of the connecting bar 509 is provided with a protective rod 501, at this time, after the corrugated pipe 3 is primarily protected by the protective rod 501, the side of the supporting shaft 504 facing the corrugated pipe 3 is provided with a connecting protection layer 503, the side of the upper part of the connecting protection layer 503 facing the corrugated pipe 3 is provided with a protection node 502, the aftershock generated by the impact can be absorbed and protected by the connecting protection layer 503 and the protection node 502, a fixing rod 506 is inserted at the bottom of the supporting shaft 504, connecting blocks 505 are respectively sleeved on the left side and the right side of the fixing rod 506, the supporting shaft 504 is fixed by the connecting blocks 505 and the fixing rod 506 in a matching manner, middle supporting shafts 507 are respectively arranged on the two sides of the middle part of the bottom of the protecting rod 501, and the bellows 3 in the middle portion is protected by a middle support shaft 507 and a middle connection protection layer 508.

Has the advantages that:

the protection device is arranged outside the corrugated pipe outside the expansion joint, so that the corrugated pipe is protected when the expansion joint is used, and the practicability of the expansion joint is enhanced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure balance type expansion joint with a protection function comprises a basic assembly and a protection assembly, and is characterized in that: the basic assembly comprises a pipe body (2), an upper flange (1) is arranged at the top of the pipe body (2), a lower flange (4) is arranged at the bottom of the pipe body (2), and corrugated pipes (3) are arranged in the middle and on the left and right sides of the pipe body (2);

the protection assembly comprises a lower protection device (6), an upper protection device (5) is sleeved outside the upper part of the corrugated pipe (3), and the upper protection device (5) is the same as the lower protection device (6);

the upper protection device (5) comprises a support shaft (504), connecting strips (509) are arranged at the top and the bottom of the support shaft (504), a protection rod (501) is arranged at the top of the upper portion of each connecting strip (509), a connection protection layer (503) is arranged on one side, facing the corrugated pipe (3), of the support shaft (504), a fixing rod (506) is inserted into the bottom of the support shaft (504), connecting blocks (505) are sleeved on the left side and the right side of each fixing rod (506), middle support shafts (507) are arranged on two sides of the middle of the bottom of each protection rod (501), a middle connection protection layer (508) is arranged on one side, facing the corrugated pipe (3), of each middle support shaft (507), and a protection node (502) is arranged on one side, facing the corrugated pipe (3), of the upper portion of each connection protection layer (503);

the protection components are in a symmetrical structure based on the center line of the protection rod (501).

2. The pressure balance type expansion joint with the protection function according to claim 1, wherein: the left side of the pipe body (2) is provided with an inlet end pipe, and the right side of the pipe body (2) is provided with an outlet end pipe.

3. The pressure balance type expansion joint with the protection function according to claim 1, wherein: the top of the pipe body (2) is sleeved with a guide cylinder, and the guide cylinder is fixedly connected with the upper flange (1).

4. The pressure balance type expansion joint with the protection function according to claim 1, wherein: the top of the upper flange (1) is provided with a screw, and a fixing cap is sleeved outside the screw.

5. The pressure balance type expansion joint with the protection function according to claim 1, wherein: the connecting strips (509) are fixedly connected with the supporting shaft (504), and the number of the connecting strips (509) is eight.

6. The pressure balance type expansion joint with the protection function according to claim 1, wherein: small-size connecting strips are arranged at the top and the bottom of the middle supporting shaft (507), and the size of each connecting strip (509) is six times that of each small-size connecting strip.

7. The pressure balance type expansion joint with the protection function according to claim 1, wherein: the connection protection layer (503) is fixedly connected with the protection node (502).