Splicing type connecting flange

Abstract

The utility model provides a splicing type connecting flange. According to the technical scheme, the splicing type connecting flange is characterized by comprising a first connecting piece and a second connecting piece; the first connecting piece and the second connecting piece are spliced and fixed; the first connecting piece comprises a first connecting pipe; the second connecting frame comprises a second connecting pipe; two opposite connecting plates are arranged at the end part of the first connecting pipe; the upper end of the connecting plate extends upwards relative to the side face of the end of the first connecting pipe to form an extending protrusion. An inserting block is arranged at the end part of the second connecting pipe; the inserting blocks are connected with the lower ends of the connecting plates, and the inserting blocks are located between the connecting plates; a buckling plate is elastically arranged at the end part of the second connecting pipe; and the buckling plate is matched and buckled with the extending bulge under the elastic effect. The technical problems that in the prior art, use is inconvenient, and pre-punching is needed are solved; the splicing type connecting flange is convenient to use, disassemble, maintain and assemble.

Description

Technical Field

[0001] The present application relates to the field of flange technology, and in particular to a spliced ​​connecting flange. Background Art

[0002] A flange is a component used to connect shafts and pipe ends. It can also be found on equipment inlets and outlets, connecting two pieces of equipment, such as reducer flanges. A flange connection, or flange joint, refers to a removable connection consisting of a flange, gasket, and bolts, forming a combined sealing structure. A pipe flange is used for piping in piping installations, and on equipment, it refers to the inlet and outlet flanges of the equipment. The flanges have holes, and bolts secure the two flanges together. Gaskets are used to seal the flanges. Flanges are categorized as threaded (threaded), welded, and clamp flanges. Flanges are used in pairs. Threaded flanges are used for low-pressure pipes, while welded flanges are used for pressures above 4 kg. A gasket is placed between the two flanges, and then bolts are used to secure them. Flanges for different pressures have different thicknesses, and different bolts are used. When connecting pumps and valves to pipes, these parts of these equipment are also made with corresponding flange shapes, also known as flange connections. Any connection that uses bolts to seal two flat surfaces is generally called a "flange," such as the connection of ventilation ducts. This type of part is referred to as a "flange-type part." However, this connection is only a part of a device, such as the connection between a flange and a water pump, so it is not appropriate to call the water pump a "flange part". Smaller ones such as valves can be called "flange parts".

[0003] Existing flanges require pre-drilling to connect shafts to each other. This arrangement destroys the structure of the shaft, affects product quality, and is inconvenient to use. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a spliced ​​connecting flange to solve the technical problem in the prior art that it is inconvenient to use and requires pre-punching.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a spliced ​​connecting flange, including a first connecting member and a second connecting member; the first connecting member and the second connecting member are spliced ​​and fixed; the first connecting member includes a first connecting tube; the second connecting member includes a second connecting tube; two opposite connecting plates are provided at the end of the first connecting tube; the upper end of the connecting plate extends upward relative to the side of the end of the first connecting tube to form an extended protrusion; the end of the second connecting tube is provided with a plug-in block; the plug-in block is connected to the lower end of the connecting plate, and the plug-in block is located between the connecting plates; the end of the second connecting tube is elastically provided with a snap-on plate; the snap-on plate is snapped with the extended protrusion under the elastic action.

[0006] Through the above-mentioned technical solution, the splicing connection of the first connecting member and the second connecting member can realize the connection of the objects connected to the first connecting member and the second connecting member. The splicing setting can facilitate operation, docking, maintenance and installation; through such a setting, the plug-in fit of the extended protrusion and the plug-in block, and the snap-on fit of the snap-on plate can be easily installed and disassembled.

[0007] Optionally, the end of the first connecting tube has a first end panel; the end of the second connecting tube has a second end panel; the first end panel and the second end panel are both set to be square; the connecting plate is integrally arranged on the first end panel, and the extended protrusion is higher than the first end panel; the plug-in block is integrally arranged on the second end panel; a screw is connected between the snap-on plate and the lower end of the connecting plate.

[0008] Through the above-mentioned technical solution, the setting of the first end panel and the second end panel can facilitate the relative positioning of the two, facilitate the integrated setting of the extension protrusion and the plug-in block, and the extension protrusion is higher than the first end panel, which is convenient for the snap-fitting with the snap-fit ​​plate. The screw can be replaced with a pin shaft. Through the pin shaft, when the upper snap-fit ​​plate is no longer snapped, the rotation of the two can be realized.

[0009] Optionally, the upper end of the second end panel extends upward to form a middle block; the middle block is vertically connected to an intermediate plate; the intermediate plate cooperates with the two extended protrusions; the end surface of the intermediate plate is flush with the side surface of the extended protrusion.

[0010] Through the above-mentioned technical solution, the middle block can be used to install the snap-on plate to facilitate the rotational cooperation of the snap-on plate, and the middle plate is used to block the space above the two connecting plates. It is located between the two extended protrusions, and the end face of the middle plate is flush with the side face of the extended protrusion, which is convenient for cooperation with the snap-on plate.

[0011] Optionally, semicircular protrusions are provided on both sides of the middle part of the snap-on plate; the intermediate block is arranged between the two semicircular protrusions and is rotatably connected through a pin shaft; one end of the snap-on plate is opposite to the outer circumferential surface of the second connecting tube; a first limiting groove is provided on the outer circumferential surface of the second connecting tube; a second limiting groove is provided on the snap-on plate; a spring is also provided, and both ends of the spring cooperate with the first limiting groove and the second limiting groove.

[0012] Optionally, a buckle strip is provided at the other end of the buckle plate away from the spring; the buckle strip is bent downward; and the buckle strip is located on the front side of the middle plate.

[0013] Through the above-mentioned technical solution and the setting of the spring, the disengagement and engagement of the snapping strip at the other end of the snapping plate with the end face of the middle plate and the side face of the extended protrusion can be achieved. Two circular rings with different inner diameters can extend outward from the edges of the first limiting groove and the second limiting groove, further improving the limiting effect.

[0014] Optionally, the first connecting tube is configured as a square tubular structure; the second connecting tube is configured as a circular tubular structure; and a plurality of annular grooves are provided on the outer circumference of the second connecting tube.

[0015] Through the above-mentioned technical solution, the annular groove can increase the friction force, and circular threaded holes can be set outside the first connecting tube and the second connecting tube. When the square shaft or square tube is matched with the first connecting tube, and the round shaft or round tube is matched with the second connecting tube, screws can be passed through the circular threaded holes to fix them together without opening holes on the shaft or tube.

[0016] Beneficial effects of the present application: Compared with the prior art, the spliced ​​connecting flange provided by the present application is convenient to use, disassemble, maintain and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in this application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the second connecting member in an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the first connecting member in an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram from another angle of the second connecting member of the embodiment of the present application.

[0022] Among them, the figure marks in the figure are: 1. first connecting tube; 2. second connecting tube; 3. connecting plate; 4. extension protrusion; 5. plug-in block; 6. snap-on plate; 7. first end panel; 8. second end panel; 9. screw; 10. middle block; 11. middle plate; 12. semicircular protrusion; 13. first limiting groove; 14. spring. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of this application more clear, this application is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" means two or more, unless otherwise specifically defined.

[0027] like Figures 1-4 As shown, the purpose of the embodiment of the present application is to provide a spliced ​​connection flange to solve the technical problems of the prior art that it is inconvenient to use and requires pre-punching. In order to achieve the above purpose, the technical solution adopted by the present application is: to provide a spliced ​​connection flange, including a first connection member and a second connection member; the first connection member and the second connection member are spliced ​​and fixed; the first connection member includes a first connecting pipe 1; the second connection member includes a second connecting pipe 2; the end of the first connecting pipe 1 is provided with two opposite connecting plates 3; the upper end of the connecting plate 3 extends upward relative to the side of the end of the first connecting pipe 1 to form an extension protrusion 4; the end of the second connecting pipe 2 is provided with a plug-in block 5; the plug-in block 5 is connected to the lower end of the connecting plate 3, and the plug-in block 5 is located between the connecting plates 3; the end of the second connecting pipe 2 is elastically provided with a snap-on plate 6; the snap-on plate 6 is snap-on with the extension protrusion 4 under the action of elasticity.

[0028] Through the above-mentioned technical solution, the splicing connection of the first connecting member and the second connecting member can realize the connection of the objects connected to the first connecting member and the second connecting member. The splicing setting can facilitate operation, docking, maintenance and installation; through such a setting, the plug-in fit of the extended protrusion 4 and the plug-in block 5, and the snap-on fit of the snap-on plate 6 can be easily installed and disassembled.

[0029] Optionally, the end of the first connecting tube 1 has a first end panel 7; the end of the second connecting tube 2 has a second end panel 8; the first end panel 7 and the second end panel 8 are both set to be square; the connecting plate 3 is integrally arranged on the first end panel 7, and the extending protrusion 4 is higher than the first end panel 7; the plug-in block 5 is integrally arranged on the second end panel 8; a screw 9 is connected between the buckle plate 6 and the lower end of the connecting plate 3.

[0030] Through the above-mentioned technical solution, the setting of the first end panel 7 and the second end panel 8 can facilitate the relative positioning of the two, facilitate the integrated setting of the extended protrusion 4 and the plug-in block 5, and the extended protrusion 4 is higher than the first end panel 7, which is convenient for the snap-fitting with the snap-fitting plate 6. The screw 9 can be replaced with a pin shaft. Through the pin shaft, when the upper snap-fitting plate 6 is no longer snap-fitted, the rotation of the two can be realized.

[0031] Optionally, the upper end of the second end panel 8 extends upward to form an intermediate block 10; the intermediate block 10 is vertically connected to an intermediate plate 11; the intermediate plate 11 cooperates with the two extended protrusions 4; the end surface of the intermediate plate 11 is flush with the side surface of the extended protrusion 4.

[0032] Through the above-mentioned technical solution, the middle block 10 can be used to install the snap-on plate 6 to facilitate the rotational cooperation of the snap-on plate 6, and the middle plate 11 is used to block the space above the two connecting plates 3, and is located between the two extended protrusions 4. The end face of the middle plate 11 is flush with the side face of the extended protrusion 4, which is convenient for cooperation with the snap-on plate 6.

[0033] Optionally, semicircular protrusions 12 are provided on both sides of the middle part of the snap-on plate 6; the intermediate block 10 is arranged between the two semicircular protrusions 12 and is rotatably connected through a pin shaft; one end of the snap-on plate 6 is opposite to the outer peripheral surface of the second connecting tube 2; a first limiting groove 13 is provided on the outer peripheral surface of the second connecting tube 2; a second limiting groove is provided on the snap-on plate 6; a spring 14 is also provided, and both ends of the spring 14 cooperate with the first limiting groove 13 and the second limiting groove.

[0034] Optionally, a buckle strip is provided at the other end of the buckle plate 6 away from the spring 14 ; the buckle strip is bent downward; and the buckle strip is located at the front side of the middle plate 11 .

[0035] Through the above-mentioned technical solution, the setting of the spring 14 can realize the disengagement and engagement of the fastening strip at the other end of the fastening plate 6 with the end face of the middle plate 11 and the side face of the extended protrusion 4. Two circular rings with different inner diameters can extend outward from the edges of the first limiting groove 13 and the second limiting groove, further improving the limiting effect.

[0036] Optionally, the first connecting pipe 1 is configured as a square tubular structure; the second connecting pipe 2 is configured as a circular tubular structure; and a plurality of annular grooves are provided on the outer circumference of the second connecting pipe 2 .

[0037] Through the above-mentioned technical solution, the annular groove can increase the friction force, and a circular threaded hole can be set on the outside of the first connecting tube 1 and the second connecting tube 2. When the square shaft or square tube is matched with the first connecting tube 1, and the round shaft or round tube is matched with the second connecting tube 2, screws can be passed through the circular threaded holes to fix them together without opening holes on the shaft or tube.

[0038] Beneficial effects of this application: Compared with the prior art, the spliced ​​connection flange provided by this application is easy to use, disassemble, maintain, and assemble.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. Within the scope of the present application, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of simplicity.

[0040] This application is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A spliced ​​connecting flange, characterized in that: The invention comprises a first connecting member and a second connecting member; the first connecting member and the second connecting member are spliced ​​and fixed; the first connecting member comprises a first connecting tube (1); the second connecting member comprises a second connecting tube (2); two opposite connecting plates (3) are provided at the end of the first connecting tube (1); the upper end of the connecting plate (3) extends upward relative to the side of the end of the first connecting tube (1) to form an extension protrusion (4); a plug-in block (5) is provided at the end of the second connecting tube (2); the plug-in block (5) is connected to the lower end of the connecting plate (3), and the plug-in block (5) is located between the connecting plates (3); a buckle plate (6) is elastically provided at the end of the second connecting tube (2); the buckle plate (6) is buckled with the extension protrusion (4) under the elastic action.

2. The spliced ​​connecting flange according to claim 1, characterized in that: The end of the first connecting tube (1) has a first end panel (7); the end of the second connecting tube (2) has a second end panel (8); the first end panel (7) and the second end panel (8) are both arranged in a square shape; the connecting plate (3) is integrally arranged on the first end panel (7), and the extended protrusion (4) is higher than the first end panel (7); the plug-in block (5) is integrally arranged on the second end panel (8); a screw (9) is connected between the buckle plate (6) and the lower end of the connecting plate (3).

3. The spliced ​​connecting flange according to claim 2, characterized in that: The upper end of the second end panel (8) extends upward to form an intermediate block (10); the intermediate block (10) is vertically connected to an intermediate plate (11); the intermediate plate (11) is matched with the two extended protrusions (4); the end surface of the intermediate plate (11) is flush with the side surface of the extended protrusion (4).

4. The spliced ​​connecting flange according to claim 3, characterized in that: Semicircular protrusions (12) are provided on both sides of the middle of the buckle plate (6); the intermediate block (10) is provided between the two semicircular protrusions (12) and is rotatably connected via a pin shaft; one end of the buckle plate (6) is opposite to the outer peripheral surface of the second connecting tube (2); a first limiting groove (13) is provided on the outer peripheral surface of the second connecting tube (2); a second limiting groove is provided on the buckle plate (6); and a spring (14) is also provided, with both ends of the spring (14) cooperating with the first limiting groove (13) and the second limiting groove.

5. The spliced ​​connecting flange according to claim 4, characterized in that: A buckle strip is provided at the other end of the buckle plate (6) away from the spring (14); the buckle strip is bent downward; and the buckle strip is located on the front side of the middle plate (11).

6. The spliced ​​connecting flange according to claim 1, characterized in that: The first connecting pipe (1) is configured as a square tubular structure; the second connecting pipe (2) is configured as a circular tubular structure; and a plurality of annular grooves are provided on the outer circumference of the second connecting pipe (2).

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