C2F force transmission expansion joint

Abstract

The utility model discloses a C2F force transmission expansion joint, which belongs to the technical field of force transmission expansion joints, and comprises an expansion joint body, a gland, a limiting expansion pipe, a sealing ring, a limiting screw rod and a stud, the gland is arranged on the right side of the expansion joint body, the limiting expansion pipe is arranged at the bottom of the gland, and the sealing ring is arranged on the limiting screw rod. A sealing ring is arranged at the bottom of the limiting telescopic pipe, and a limiting screw is arranged at the bottom of the sealing ring. Through the arrangement of the expansion joint body, the gland, the limiting expansion pipe, the sealing ring and the limiting screw rod, the expansion joint body and the limiting expansion pipe can be matched in an axial movement mode to achieve the expansion adjusting function, the expansion amount is adjusted through the limiting screw rod and the adjusting nut which are installed on the limiting expansion pipe, and when a pipeline is contracted or stretched, the sealing ring can be used for sealing the sealing ring. And the limiting step of the expansion joint body is in contact positioning with the limiting expansion pipe, and the expansion amount can be adjusted by adjusting the position of the adjusting nut, so that the large-caliber use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of force transmission expansion joint technology, specifically a C2F force transmission expansion joint. Background Technology

[0002] C2F force-transmitting expansion joints (expansion joints) are mainly used to compensate for the expansion and contraction deformation of pipelines caused by temperature changes. They are also used for length compensation required for pipeline installation and adjustment. In addition, limit expansion joints are particularly suitable for connections in pipelines with vibration or a certain degree of inclination and bends.

[0003] This application improves upon existing technology. Currently, there are no expansion joints with such a large diameter available on the market, which cannot adequately meet daily usage needs. Furthermore, the pipeline medium is prone to leakage during use, resulting in poor sealing performance.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a C2F force transmission expansion joint to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CF force transmission expansion joint, comprising an expansion joint body, a pressure cap, a limiting expansion tube, a sealing ring, a limiting screw, and a stud. The pressure cap is provided on the right side of the expansion joint body, the limiting expansion tube is provided at the bottom of the pressure cap, the sealing ring is provided at the bottom of the limiting expansion tube, and the limiting screw is provided at the bottom of the sealing ring.

[0007] As a further embodiment of this utility model: a sealing rubber is provided on the left side of the telescopic joint body, and a pressure plate is provided at the bottom of the sealing rubber.

[0008] As a further embodiment of this utility model: a first nut is provided at the bottom of the pressure plate, and an adjusting nut is provided at the bottom of the first nut.

[0009] As a further embodiment of this utility model: a stud is provided at the bottom of the adjusting nut, and a telescopic flange is provided at the bottom of the stud.

[0010] As a further embodiment of this utility model: the pressure cap is made of QB low alloy structural steel, and the structure of the pressure cap is a plate with evenly distributed screw holes in the circumferential direction.

[0011] As a further embodiment of this utility model, the limiting telescopic tube adopts a welded structure of QB low alloy structural steel.

[0012] As a further embodiment of this utility model: the limiting screw is a commercial-grade galvanized, square-headed, fully threaded screw.

[0013] This utility model has the following beneficial effects:

[0014] (1) By setting up the expansion joint body, gland, limiting expansion tube, sealing ring and limiting screw, the expansion adjustment function can be realized by the axial movement of the expansion joint body and the limiting expansion tube. The expansion amount is adjusted by the limiting screw and adjusting nut installed on the limiting expansion tube. When the pipeline contracts or extends, the limiting step of the expansion joint body contacts and positions the limiting expansion tube. By adjusting the position of the adjusting nut, the expansion amount can be adjusted, thereby meeting the needs of large-diameter use and solving the problem that there are no such large-diameter expansion joints on the market, which cannot meet the daily use needs well.

[0015] (2) Through the setting of studs, sealing rubber, adjusting nuts, pressure plates, first nuts and expansion flanges, the expansion seal adopts a special-shaped vulcanized solid T-shaped rubber sealing ring to form a working seal with the extrusion slope of the expansion joint body and the pressure plate. When the first nut on the pressure plate is locked, a sufficient sealing pressure is formed to make the expansion joint achieve zero leakage. At the same time, the T-shaped rubber sealing ring is integrally die-cast and the cross-section is designed with a special shape with a slope. The extrusion slope is wedge-shaped. When the pressure plate is tightened, it has a good wedging effect and can ensure the effective sealing of the expansion joint. The sealing structure of this expansion joint is simple, stable in performance, and easy to adjust and replace the rubber sealing ring (sealing packing). It is reliable and leak-free, with good sealing effect, which solves the problem of easy leakage of pipeline medium and poor sealing effect during use. Attached Figure Description

[0016] Figure 1 This is a partial three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial side view of the structure of this utility model;

[0018] Figure 3 This is a partial structural diagram of the adjusting nut, which is the main feature of this utility model.

[0019] In the diagram: 1. Expansion joint body; 2. Pressure cap; 3. Limiting expansion tube; 4. Sealing ring; 5. Limiting screw; 6. Stud; 7. Sealing rubber; 8. Adjusting nut; 9. Pressure plate; 10. First nut; 11. Expansion flange. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-3This utility model provides an embodiment of a C2F force transmission expansion joint, comprising an expansion joint body 1, a pressure cap 2, a limiting expansion tube 3, a sealing ring 4, a limiting screw 5, and a stud 6. The pressure cap 2 is provided on the right side of the expansion joint body 1. The pressure cap 2 is made of Q355B low alloy structural steel. The structure of the pressure cap 2 is a plate with evenly distributed screw holes around its circumference. The limiting expansion tube 3 is provided at the bottom of the pressure cap 2. The limiting expansion tube 3 is a welded structure made of Q355B low alloy structural steel. The sealing ring 4 is provided at the bottom of the limiting expansion tube 3. The limiting screw 5 is provided at the bottom of the sealing ring 4. The limiting screw 5 is a commercial grade 8.8 galvanized full-thread screw with a square head.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, during use, the expansion joint body 1 and the limiting expansion tube 3 can cooperate axially to achieve the expansion and contraction adjustment function. The expansion and contraction amount is adjusted by the limiting screw 5 and the adjusting nut 8 installed on the limiting expansion tube 3. When the pipeline contracts or extends, the limiting step of the expansion joint body 1 contacts and positions itself with the limiting expansion tube 3. By adjusting the position of the adjusting nut 8, the expansion and contraction amount can be adjusted, thereby meeting the needs of large-diameter applications and solving the problem that there are currently no such large-diameter expansion joints on the market, which cannot well meet the needs of daily use.

[0027] A sealing rubber 7 is provided on the left side of the telescopic joint body 1. A pressure plate 9 is provided at the bottom of the sealing rubber 7. A first nut 10 is provided at the bottom of the pressure plate 9. An adjusting nut 8 is provided at the bottom of the first nut 10. A stud 6 is provided at the bottom of the adjusting nut 8. A telescopic flange 11 is provided at the bottom of the stud 6.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, during use, the expansion joint seal uses a specially shaped vulcanized solid T-shaped rubber sealing ring 4 to form a working seal with the extrusion slope of the expansion joint body 1 and the pressure plate 2. When the first nut 10 on the pressure plate 2 is tightened, a sufficient sealing pressure is formed, enabling the expansion joint to achieve zero leakage. At the same time, the T-shaped rubber sealing ring 4 is integrally die-cast and has a specially shaped inclined surface with a wedge shape. When the pressure plate 2 is tightened, it has a good wedging effect, which can ensure the effective sealing of the expansion joint. The sealing structure of this expansion joint is simple, stable in performance, and easy to adjust and replace the rubber sealing ring 4 (sealing filler). It is reliable, leak-free, and has a good sealing effect, solving the problem of easy leakage of pipeline medium and poor sealing effect during use.

[0029] Working principle: In this application, the expansion joint body 1 and the limiting expansion tube 3 can be axially moved together to achieve the expansion and contraction adjustment function. The expansion and contraction amount is adjusted by the limiting screw 5 and the adjusting nut 8 installed on the limiting expansion tube 3. When the pipeline contracts or extends, the limiting step of the expansion joint body 1 contacts and positions itself with the limiting expansion tube 3. By adjusting the position of the adjusting nut 8, the expansion and contraction amount can be adjusted to meet the needs of large-diameter applications. Secondly, the expansion seal adopts a special-shaped vulcanized solid T-shaped rubber sealing ring 4 that is connected to the expansion joint body 1 and the gland. The extrusion slope of 2 forms a working seal. When the first nut 10 on the gland 2 is tightened, a sufficient sealing pressure is formed, enabling the expansion joint to achieve zero leakage. At the same time, the T-shaped rubber sealing ring 4 is integrally die-cast and has a specially shaped inclined surface with a wedge shape. When the gland 2 is tightened, it has a good wedging effect, which can ensure the effective sealing of the expansion joint. The sealing structure of this expansion joint is simple, stable in performance, and easy to adjust and replace the rubber sealing ring 4 (sealing filler). It is reliable, leak-free, and has a good sealing effect.

[0030] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. At the same time, the electrical components mentioned in this application are all connected to an external power supply and control switch when in use. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, this utility model will not explain the control method and circuit connection in detail. Moreover, the external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A C2F force-transmitting expansion joint, comprising an expansion joint body (1), a gland (2), a limiting expansion tube (3), a sealing ring (4), a limiting screw (5), and a stud (6), characterized in that: A pressure cap (2) is provided on the right side of the telescopic joint body (1). A limiting telescopic tube (3) is provided at the bottom of the pressure cap (2). A sealing ring (4) is provided at the bottom of the limiting telescopic tube (3). A limiting screw (5) is provided at the bottom of the sealing ring (4).

2. The C2F force-transmitting expansion joint according to claim 1, characterized in that: A sealing rubber (7) is provided on the left side of the telescopic joint body (1), and a pressure plate (9) is provided at the bottom of the sealing rubber (7).

3. The C2F force-transmitting expansion joint according to claim 2, characterized in that: The bottom of the pressure plate (9) is provided with a first nut (10), and the bottom of the first nut (10) is provided with an adjusting nut (8).

4. A C2F force-transmitting expansion joint according to claim 3, characterized in that: The bottom of the adjusting nut (8) is provided with a stud (6), and the bottom of the stud (6) is provided with a telescopic flange (11).

5. A C2F force-transmitting expansion joint according to claim 1, characterized in that: The pressure cap (2) is made of Q355B low alloy structural steel, and the structure of the pressure cap (2) is a plate with evenly distributed screw holes in the circumferential direction.

6. A C2F force-transmitting expansion joint according to claim 1, characterized in that: The limiting telescopic tube (3) is made of Q355B low alloy structural steel welded structure.

7. A C2F force-transmitting expansion joint according to claim 1, characterized in that: The limiting screw (5) is a commercial grade 8.8 galvanized full-thread screw with a square head.

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