Integrated reducing flange

Abstract

The utility model relates to the technical field of variable-diameter flange application, in particular to an integrated variable-diameter flange which comprises a variable-diameter flange body, a filtering mechanism is arranged on the upper surface of the variable-diameter flange body and comprises a fixing plate, a filtering hole is formed in the upper surface of the fixing plate, a groove is formed in the upper surface of the fixing plate, and the filtering hole is communicated with the groove. A groove is formed in the upper surface of the fixing plate, a trapezoidal block is slidably connected to the inner surface of the groove, a first spring is arranged on the inner surface of the groove, one end of the first spring is fixedly connected with the trapezoidal block, the other end of the first spring is fixedly connected with the inner surface of the groove, and an L-shaped annular plate is fixedly connected to the upper surface of the fixing plate; due to the arrangement of the fixing plate, the L-shaped ring groove, the rectangular clamping groove and the trapezoidal block, when a filtering system needs to be installed, only the fixing plate needs to be placed in the L-shaped ring groove, and then the fixing plate is rotated, so that the integrated reducing flange has a filtering effect, and the installation efficiency of the filtering system is improved.

Description

Technical Field

[0001] This utility model relates to the field of variable diameter flange application technology, specifically an integrated variable diameter flange. Background Technology

[0002] Reducing flanges, also known as reducing flanges, have inner diameters that differ from those of standard flanges. In my country, pipe diameter series are divided into metric and imperial series, and these series also differ in nominal dimensions of the same class.

[0003] A search revealed Chinese patent application CN 212361145 U, which discloses a reducing flange structure including an upper flange, an upper connecting hole, an upper tapered tube, an internally threaded tube, a lower tapered tube, a lower flange, a lower connecting hole, an upper annular groove, an upper annular gap, an upper solder layer, a tapered bellows, a lower annular groove, a lower solder layer, a lower annular gap, a bearing, an annular cylindrical surface, and a filter disc. This invention enables threaded connection assembly into a reducing flange, changing the traditional integrated cast reducing flange structure. Furthermore, by installing filter discs of different specifications at both ends of the tapered bellows, a filtration effect can be achieved. The tapered bellows at the opposite ends of the upper and lower tapered tubes can be compressed into a pre-expanded state, facilitating adjustments to the length of the middle tube section of the reducing flange as needed. Molten liquid, heated by electricity, is dripped sequentially into the upper annular gap and cooled to solidify, forming the upper solder layer, and then into the lower annular gap, forming the lower solder layer, thus achieving a welding seal.

[0004] However, since the filter screen is installed as needed during the manufacturing process of most reducing flanges, the filter system is not pre-installed after the flanges are integrally formed. Therefore, the installation time is relatively long when installing the filter system on most reducing flanges, which reduces the installation efficiency of the filter system. In view of this, we propose the integral reducing flange. Utility Model Content

[0005] The purpose of this invention is to provide an integrated reducing flange, which solves the problem of low efficiency when installing a filter system.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An integrated reducing flange includes a reducing flange body. A filter mechanism is provided on the upper surface of the reducing flange body. The filter mechanism includes a fixing plate. Filter holes are opened on the upper surface of the fixing plate. A groove is opened on the upper surface of the fixing plate. A trapezoidal block is slidably connected to the inner surface of the groove. A spring is provided on the inner surface of the groove. One end of the spring is fixedly connected to the trapezoidal block, and the other end of the spring is fixedly connected to the inner surface of the groove. An L-shaped ring plate is fixedly connected to the upper surface of the fixing plate.

[0008] Preferably, the inner surface of the reducing flange body is provided with an L-shaped annular groove, and the inner surface of the L-shaped annular groove is slidably connected to the outer arc surface of the L-shaped annular plate.

[0009] Preferably, the inner surface of the reducing flange body is provided with rectangular slots in a circumferential array, the rectangular slots are slidably connected to the inclined surface of the trapezoidal block, and the inner surface of the L-shaped annular groove is slidably connected to the trapezoidal block.

[0010] Preferably, the upper surface of the fixing plate is provided with a fixing mechanism, the fixing mechanism including a sliding plate, a sliding rod fixedly connected to the lower surface of the sliding plate, the lower surface of the sliding rod passing through the L-shaped ring plate and slidably connected to the L-shaped ring plate, a second spring sleeved on the outer arc surface of the sliding rod, the L-shaped ring plate being fixedly connected to one end of the second spring, the sliding plate being fixedly connected to the other end of the second spring, a movable pin slidably connected to the upper surface of the fixing plate, the movable pin being hinged to one end of the bracket, and the sliding plate being hinged to the other end of the bracket.

[0011] Preferably, a support plate is fixedly connected to the upper surface of the fixing plate, and a trapezoidal clamp rod passes through the upper surface of the support plate. The trapezoidal clamp rod is fixedly connected to one end of the spring three, and the support plate is fixedly connected to the other end of the spring three.

[0012] Preferably, the upper surface of the movable pin is provided with a trapezoidal groove, and the inner surface of the trapezoidal groove is slidably connected to the lower surface of the trapezoidal locking rod.

[0013] Preferably, both the filtration mechanism and the fixing mechanism are provided in two sets and are symmetrically arranged with the center line of the reducing flange body as the axis of symmetry.

[0014] By employing the above technical solution, this utility model provides an integrated reducing flange. It possesses at least the following beneficial effects:

[0015] (1) By setting up a fixed plate, an L-shaped annular groove, a rectangular slot and a trapezoidal block, when the filter system needs to be installed, simply place the fixed plate in the L-shaped annular groove and rotate the fixed plate to make the integrated reducing flange have a filtering effect, thus improving the installation efficiency of the filter system.

[0016] (2) By setting up a sliding plate, a movable pin, a bracket and a second spring, after the trapezoidal block is inserted into the rectangular slot by the elastic force of the first spring, the movable pin limits the trapezoidal block so that it cannot move out of the rectangular slot, making the entire filtration mechanism more stable. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the filtration mechanism of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of section A in the middle;

[0021] Figure 4 This is a cross-sectional structural diagram of the reducing flange body of this utility model.

[0022] In the diagram: 1. Reducing flange body; 2. Filter mechanism; 21. Fixing plate; 22. Filter hole; 23. Groove; 24. Trapezoidal block; 25. Spring 1; 26. L-shaped ring plate; 27. L-shaped ring groove; 28. Rectangular slot; 3. Fixing mechanism; 31. Slide plate; 32. Slide rod; 33. Spring 2; 34. Movable pin; 35. Bracket; 36. Support plate; 37. Trapezoidal locking rod; 38. Spring 3; 39. Trapezoidal groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1 - Figure 4This utility model provides an integrated reducing flange, including a reducing flange body 1. A filter mechanism 2 is provided on the upper surface of the reducing flange body 1. The filter mechanism 2 includes a fixing plate 21. A filter hole 22 is formed on the upper surface of the fixing plate 21. Two protrusions are provided on the left and right sides of the fixing plate 21, and a groove 23 is formed on the protrusions. A groove 23 is formed on the upper surface of the fixing plate 21. A trapezoidal block 24 is slidably connected to the inner surface of the groove 23. The groove 23 limits the movement of the trapezoidal block 24, allowing it to move vertically on the fixing plate 21. A spring 25 is provided on the inner surface of the groove 23. One end of the spring 25 is fixedly connected to the trapezoidal block 24. The other end is fixedly connected to the inner surface of the groove 23. An L-shaped ring plate 26 is fixedly connected to the upper surface of the fixing plate 21. An L-shaped ring groove 27 is opened on the inner surface of the reducing flange body 1. The cross-sectional shape of the L-shaped ring groove 27 is L-shaped, which can make the L-shaped ring plate 26 stuck in the groove and limit the L-shaped ring plate 26 so that the fixing plate 21 is stably stuck on the reducing flange body 1. The inner surface of the L-shaped ring groove 27 is slidably connected to the outer arc surface of the L-shaped ring plate 26. A rectangular slot 28 is opened in a circumferential array on the inner surface of the reducing flange body 1. The rectangular slot 28 is slidably connected to the inclined surface of the trapezoidal block 24. The inner surface of the L-shaped ring groove 27 is slidably connected to the trapezoidal block 24.

[0026] In this embodiment, the arrangement of the fixing plate 21, the L-shaped annular groove 27, the rectangular slot 28, and the trapezoidal block 24 allows the integrated reducing flange to have a filtering effect simply by placing the fixing plate 21 in the L-shaped annular groove 27 and rotating the fixing plate 21 when the filtration system needs to be installed, thus improving the installation efficiency of the filtration system.

[0027] Example 2

[0028] See also Figure 1 - Figure 4Based on Embodiment 1, this utility model provides a technical solution: Preferably, a fixing mechanism 3 is provided on the upper surface of the fixing plate 21. The fixing mechanism 3 includes a sliding plate 31, and a sliding rod 32 is fixedly connected to the lower surface of the sliding plate 31. The lower surface of the sliding rod 32 passes through the L-shaped ring plate 26 and is slidably connected to the L-shaped ring plate 26. A second spring 33 is sleeved on the outer arc surface of the sliding rod 32. The L-shaped ring plate 26 is fixedly connected to one end of the second spring 33, and the sliding plate 31 is fixedly connected to the other end of the second spring 33. A movable pin 34 is slidably connected to the upper surface of the fixing plate 21. The movable pin 34 is hinged to one end of the bracket 35, and the sliding plate 31 is hinged to the other end of the bracket 35. A support plate 36 is fixedly connected to the upper surface of the fixing plate 21. A trapezoidal locking rod 37 runs through the upper surface of the support plate 36. The trapezoidal locking rod 37 is fixedly connected to one end of the spring 38, and the support plate 36 is fixedly connected to the other end of the spring 38. A trapezoidal groove 39 is provided on the upper surface of the movable pin 34. Through the cooperation between the trapezoidal groove 39 and the trapezoidal locking rod 37, after the support plate 36 presses the inclined surface of the trapezoidal locking rod 37, the trapezoidal locking rod 37 will move upward and compress the spring 38 at the same time. After the trapezoidal locking rod 37 is parallel to the trapezoidal groove 39, the spring 38 will spring the trapezoidal locking rod 37 into the trapezoidal groove 39. The inner surface of the trapezoidal groove 39 is slidably connected to the lower surface of the trapezoidal locking rod 37. The filter mechanism 2 and the fixing mechanism 3 are both provided with two sets and are symmetrically arranged with the center line of the reducing flange body 1 as the axis of symmetry.

[0029] In this embodiment, by setting up the slide plate 31, the movable pin 34, the bracket 35 and the second spring 33, after the trapezoidal block 24 is inserted into the rectangular slot 28 by the elastic force of the first spring 25, the movable pin 34 limits the trapezoidal block 24, so that the trapezoidal block 24 cannot move out of the rectangular slot 28, making the entire filter mechanism 2 more stable.

[0030] Working principle: When the filter mechanism 2 needs to be installed on the reducing flange body 1, the fixing plate 21 is placed inside the upper surface of the reducing flange body 1. After the two protrusions of the fixing plate 21 are engaged with the upper surface of the reducing flange body 1, the sliding plate 31 is pressed down. The sliding plate 31 drives the sliding rod 32 to retract into the L-shaped ring plate 26. At the same time, the movable pin 34 is moved towards the center of the fixing plate 21 through the bracket 35. When the movable pin 34 moves, it will squeeze the inclined surface of the trapezoidal locking rod 37, causing the trapezoidal locking rod 37 to move upward and compress the spring 38. After the trapezoidal groove 39 is parallel to the trapezoidal locking rod 37, the elastic force of the spring 38 will spring the trapezoidal locking rod 37 into the trapezoidal groove 39, so that the trapezoidal locking rod 37 limits the sliding plate 31. The sliding plate 31 will not move vertically and will disengage from the trapezoidal block 24. After the trapezoidal block 24 is no longer limited by the movable pin 34, rotate the L-shaped ring plate 26. The L-shaped ring plate 26 drives the fixed plate 21 to rotate ninety degrees. The trapezoidal block 24 rotates simultaneously with the L-shaped ring plate 26. After the inclined surface of the trapezoidal block 24 is squeezed by the reducing flange body 1, the trapezoidal block 24 will shrink into the groove 23 and compress the spring 25. After the fixed plate 21 rotates ninety degrees, the trapezoidal block 24 is pushed into the rectangular slot 28 by the elastic force of the spring 25. Then, pull the trapezoidal locking rod 37 upward to disengage it from the trapezoidal groove 39. The slide plate 31 moves upward by the elastic force of the spring 33 and pulls the movable pin 34 back into the trapezoidal block 24 through the bracket 35, thus limiting the trapezoidal block 24 and realizing the installation of the filter mechanism 2. The whole operation is simple and convenient.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated reducing flange, comprising a reducing flange body (1), characterized in that: The upper surface of the reducing flange body (1) is provided with a filter mechanism (2). The filter mechanism (2) includes a fixing plate (21). The upper surface of the fixing plate (21) is provided with a filter hole (22). The upper surface of the fixing plate (21) is provided with a groove (23). The inner surface of the groove (23) is slidably connected with a trapezoidal block (24). The inner surface of the groove (23) is provided with a spring (25). One end of the spring (25) is fixedly connected to the trapezoidal block (24). The other end of the spring (25) is fixedly connected to the inner surface of the groove (23). The upper surface of the fixing plate (21) is fixedly connected with an L-shaped ring plate (26).

2. The integrated reducing flange according to claim 1, characterized in that: The inner surface of the variable diameter flange body (1) is provided with an L-shaped annular groove (27), and the inner surface of the L-shaped annular groove (27) is slidably connected to the outer arc surface of the L-shaped annular plate (26).

3. The integrated reducing flange according to claim 2, characterized in that: The inner surface of the reducing flange body (1) is provided with rectangular slots (28) arranged in a circular array. The rectangular slots (28) are slidably connected to the inclined surface of the trapezoidal block (24). The inner surface of the L-shaped annular groove (27) is slidably connected to the trapezoidal block (24).

4. The integrated reducing flange according to claim 3, characterized in that: The upper surface of the fixing plate (21) is provided with a fixing mechanism (3), the fixing mechanism (3) includes a sliding plate (31), the lower surface of the sliding plate (31) is fixedly connected with a sliding rod (32), the lower surface of the sliding rod (32) passes through the L-shaped ring plate (26) and is slidably connected with the L-shaped ring plate (26), the outer arc surface of the sliding rod (32) is sleeved with a second spring (33), the L-shaped ring plate (26) is fixedly connected to one end of the second spring (33), the sliding plate (31) is fixedly connected to the other end of the second spring (33), the upper surface of the fixing plate (21) is slidably connected with a movable pin (34), the movable pin (34) is hinged to one end of the bracket (35), and the sliding plate (31) is hinged to the other end of the bracket (35).

5. The integrated reducing flange according to claim 4, characterized in that: A support plate (36) is fixedly connected to the upper surface of the fixed plate (21). A trapezoidal rod (37) passes through the upper surface of the support plate (36). The trapezoidal rod (37) is fixedly connected to one end of the spring (38), and the support plate (36) is fixedly connected to the other end of the spring (38).

6. The integrated reducing flange according to claim 5, characterized in that: The upper surface of the movable pin (34) is provided with a trapezoidal groove (39), and the inner surface of the trapezoidal groove (39) is slidably connected to the lower surface of the trapezoidal locking rod (37).

7. The integrated reducing flange according to claim 6, characterized in that: The filtering mechanism (2) and the fixing mechanism (3) are both provided in two sets and are symmetrically arranged with the center line of the reducing flange body (1) as the axis of symmetry.

Images