Valve casting convenient to assemble

Abstract

The utility model relates to the field of valve castings, and discloses a valve casting convenient to assemble, which comprises a shell, an end cover is detachably mounted at the top end of the outer wall of the shell through a bolt, a valve body penetrates through the inner wall of the shell and is rotatably connected with the inner wall of the shell, and two groups of support frames are fixedly connected to the top end of the outer wall of the end cover. A handle is in threaded connection between the two supporting frames, two clamping blocks penetrate through the surface of the guide frame and are slidably connected with the surface of the guide frame, a fixing rod is fixedly connected to the outer wall of the clamping block on the left side, and a sliding rod is elastically connected to the inner wall of the fixing rod through a limiting spring. According to the utility model, the handle can be independently replaced through simple operation. When the valve is installed, only the clamping blocks on the two sides need to be pressed to be separated from the positioning grooves of the valve body, then the handle is rotated, the valve can be taken out for replacement, reverse operation is conducted during installation, the valve does not need to be overall disassembled, maintenance time and labor cost are greatly saved, and maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of valve castings, in particular to a valve casting which is easy to assemble. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance.

[0003] In industrial production and fluid delivery systems, valve castings play a vital control role. They can regulate the flow, pressure and flow direction of the fluid to ensure the safety and stable operation of the production process. With the continuous development of industry, the performance and reliability requirements of valve castings are getting higher and higher. At the same time, they also need to be more convenient in installation and maintenance to improve production efficiency and reduce costs.

[0004] However, existing valve castings have some problems in actual use: on the one hand, during the working process, the threads are worn due to frequent opening and closing of the valve. When the threaded screw can no longer mesh, the valve casting needs to be replaced as a whole and cannot be disassembled and replaced individually, which increases the cost of use. On the other hand, when connecting with external equipment or pipelines, special tools are required to lock the threads of each set of bolts, which has low installation efficiency and is difficult to ensure the stability and sealing of the connection. Therefore, a valve casting that is easy to assemble is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a valve casting that is easy to assemble, aiming to improve the problem in the prior art that the valve casting cannot be disassembled and replaced separately, which increases the cost of use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a valve casting that is easy to assemble, comprising a shell, the top end of the outer wall of the shell is detachably mounted with an end cover by bolts, the inner wall of the shell penetrates and is rotatably connected with a valve body, the top end of the outer wall of the end cover is fixedly connected with two groups of support frames, a handle is threadedly connected between the two groups of support frames, the outer wall of the bottom end of the handle is fixedly connected with two groups of connecting blocks, the outer walls of both sides of the shell are fixedly connected with connecting pipes, the surface of the connecting pipe is provided with a quick-release assembly, the inner wall of the top end of the valve body is provided with a positioning assembly, and the positioning assembly includes a guide frame;

[0007] Two groups of blocks are penetrated and slidably connected on the surface of the guide frame, the outer wall of the block on the left side is fixedly connected with a fixing rod, and the inner wall of the fixing rod is elastically connected with a sliding rod via a limit spring.

[0008] As a further description of the above technical solution:

[0009] The quick-release assembly includes a sliding sleeve, a toothed ring is fixedly connected to the surface of the sliding sleeve, a plurality of threaded grooves are provided on the surface of the connecting pipe, a screw is threadedly connected to the inner wall of the threaded groove of the connecting pipe, and a plurality of tooth blocks are fixedly connected to the surface of the screw.

[0010] As a further description of the above technical solution:

[0011] A U-shaped groove is formed on the surface of the top end of the valve body, and the outer wall of the connecting block contacts the inner wall of the U-shaped groove.

[0012] As a further description of the above technical solution:

[0013] The bottom end of the outer wall of the guide frame contacts the top end of the outer wall of the valve body, the inner wall of the top end of the valve body is provided with a positioning groove, and the clamping block is clamped with the inner wall of the positioning groove.

[0014] As a further description of the above technical solution:

[0015] One end of the limit spring is fixedly connected to the left inner wall of the fixed rod, and the other end of the limit spring is fixedly connected to the outer wall of the sliding rod.

[0016] As a further description of the above technical solution:

[0017] The sliding rod is slidably connected to the inner wall of the fixed rod, and the outer wall of the sliding rod is fixedly connected to the outer wall of the right clamping block.

[0018] As a further description of the above technical solution:

[0019] The sliding rod is slidably connected to the inner wall of the fixed rod, and the outer wall of the sliding rod is fixedly connected to the outer wall of the right clamping block.

[0020] As a further description of the above technical solution:

[0021] The sliding sleeve is slidably connected to the surface of the connecting pipe, the outer wall of the gear ring is slidably connected to the outer surface of the screw rod, and the gear ring is meshed with the gear block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, when the thread of the valve casting handle is worn, the handle can be replaced separately through simple operation. It only needs to press the blocks on both sides to disengage it from the positioning groove of the valve body, and then rotate the handle to take it out for replacement. The reverse operation can be performed during installation. There is no need to disassemble the valve as a whole, which greatly saves maintenance time and labor costs and improves maintenance efficiency.

[0024] 2. In the present utility model, by rotating the sliding sleeve to drive the toothed ring to rotate, multiple groups of toothed blocks are synchronously rotated, so that the screw rod passes through the threaded hole of the connecting pipe and is connected to the threaded hole of the external device. It can also be rotated by inserting a special tool into the internal hexagonal part of the screw rod, further improving the installation efficiency of the bolt, greatly improving the work efficiency, and at the same time ensuring the stability and tightness of the connection. Brief Description of the Drawings

[0025] Figure 1 FIG. is an overall three-dimensional structural schematic diagram of a valve casting that is easy to assemble proposed by the present utility model;

[0026] Figure 2 FIG. is a partial sectional structural schematic diagram of the top end of the valve body and the left clamping block of a valve casting that is easy to assemble proposed by the present utility model;

[0027] Figure 3 A valve casting that is easy to assemble proposed by the present utility model Figure 2 Enlarged structural schematic diagram of part A;

[0028] Figure 4 FIG. is a three-dimensional structural schematic diagram of a quick-release assembly of a valve casting that is easy to assemble proposed by the present utility model.

[0029] Legend Explanation:

[0030] 1. Housing; 2. Connecting pipe; 3. End cover; 4. Valve body; 5. Support frame; 6. Handle; 7. Positioning assembly; 71. Guide frame; 72. Clamping block; 73. Sliding rod; 74. Fixed rod; 75. Limiting spring; 8. Quick-release assembly; 81. Sliding sleeve; 82. Toothed ring; 83. Toothed block; 84. Screw rod; 9. Connecting block. Specific Embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1 - Figure 3, An embodiment provided by the present utility model: A valve casting that is easy to assemble, including a housing 1. The top end of the outer wall of the housing 1 is detachably installed with an end cover 3 through bolts. The end cover 3 is an existing technology. By means of the end cover 3, the position of the valve body 4 installed on the inner wall of the housing 1 can be pressed. The inner wall of the housing 1 penetrates and is rotatably connected with a valve body 4. The valve body 4 is an existing technology. By opening the valve body 4, the liquid can flow through. And a cavity is provided at the top end of the valve body 4. Two support frames 5 are fixedly connected to the top end of the outer wall of the end cover 3. A handle 6 is threadedly connected between the two support frames 5. The surface of the handle 6 is provided with an external thread that fits the inner wall of the support frame 5. By rotating the handle 6 threadedly within the inner wall of the support frame 5, the valve body 4 can be rotated and opened.

[0033] Refer to Figure 2 and Figure 3 , Two connecting blocks 9 are fixedly connected to the outer wall of the bottom end of the handle 6. A U-shaped groove is formed on the surface of the top end of the valve body 4. The outer wall of the connecting block 9 is in contact with the inner wall of the U-shaped groove. The contact between the two enables the handle 6 to drive the valve body 4 to rotate when rotating, so as to close the flow of the liquid inside the housing 1. Connecting pipes 2 are fixedly connected to the outer walls on both sides of the housing 1. A quick-release assembly 8 is provided on the surface of the connecting pipes 2. Connecting flanges are provided on the surfaces of the two connecting pipes 2. Through the connecting flanges, the whole can be connected to an external pipeline for use. A positioning assembly 7 is provided on the inner wall of the top end of the valve body 4.

[0034] Refer to Figure 2 and Figure 3, the positioning component 7 includes a guide frame 71. The bottom end of the outer wall of the guide frame 71 is in contact with the top end of the outer wall of the connecting block 9, and the bottom end of the outer wall of the handle 6 is in contact with the inner wall of the top end of the valve body 4. Since a cavity is provided at the top end of the valve body 4, the bottom end of the handle 6 can be integrally inserted into the inner wall of the valve body 4, so that the overall contact area is larger and the overall stability is better. Two groups of clamping blocks 72 penetrate and are slidably connected to the surface of the guide frame 71. By moving the two groups of clamping blocks 72 closer to each other or moving on the surface of the guide frame 71, the bottom end of the clamping block 72 can be disengaged from the positioning groove of the valve body 4, and thus the entire positioning component 7 can be removed from the inner wall of the valve body 4, facilitating the installation or disassembly of the handle 6. The bottom end of the outer wall of the guide frame 71 is in contact with the top end of the outer wall of the valve body 4. A positioning groove is provided in the inner wall of the top end of the valve body 4, and the clamping block 72 is clamped with the inner wall of the positioning groove. A fixing rod 74 is fixedly connected to the outer wall of the left clamping block 72. A sliding rod 73 is elastically connected to the inner wall of the fixing rod 74 through a limiting spring 75. The sliding rod 73 is slidably connected to the inner wall of the fixing rod 74, and the outer wall of the sliding rod 73 is fixedly connected to the outer wall of the right clamping block 72. One end of the limiting spring 75 is fixedly connected to the left inner wall of the fixing rod 74, and the other end of the limiting spring 75 is fixedly connected to the outer wall of the sliding rod 73. The function of the limiting spring 75 is to elastically support the fixing rod 74 and the sliding rod 73 when they are pressed by the clamping block 72 and move closer to each other. After canceling the pressing on the two groups of clamping blocks 72, the elastic potential energy of the limiting spring 75 will synchronously restore the fixing rod 74, the sliding rod 73, and the corresponding clamping block 72 to their initial positions.

[0035] Referring to Figure 1 and Figure 4 , the quick-release component 8 includes a sliding sleeve 81. The sliding sleeve 81 is slidably connected to the surface of the connecting pipe 2. Multiple groups of grooves are provided on the surface of the sliding sleeve 81 to increase the anti-slip effect during overall movement. The outer wall of the toothed ring 82 is slidably connected to the outer surface of the screw 84. A groove is provided at the middle toothed block 83 of the screw 84 and is fitted with the outer wall of the toothed ring 82, so that the toothed ring 82 can only rotate in the groove of the screw 84 when it rotates. The toothed ring 82 meshes with the toothed block 83. Through the rotation of the sliding sleeve 81, the toothed ring 82 can be synchronously rotated to mesh with multiple groups of toothed blocks 83, enabling multiple groups of toothed blocks 83 to rotate synchronously. As a result, the screw 84 can be threadedly moved in the inner wall of the connecting pipe 2 to be connected and locked to the flange of the external pipeline. A toothed ring 82 is fixedly connected to the surface of the sliding sleeve 81. Multiple groups of threaded grooves are provided on the surface of the connecting pipe 2. The screw 84 is threadedly connected to the inner wall of the threaded groove of the connecting pipe 2. An internal hexagonal groove is provided on the surface of the screw 84. A dedicated tool can be used to rotate a single screw 84 alone, and at the same time, it will mesh with the toothed ring 82, enabling multiple groups of screws 84 to rotate synchronously. Multiple groups of toothed blocks 83 are fixedly connected to the surface of the screw 84, and the tooth pitch on the circumferential surface of the toothed block 83 is the same as the tooth pitch of the toothed block 83.

[0036] Working principle: During the long-term use of the valve casting, when wear is found at the handle 6, the handle 6 can be replaced separately. By pressing the two side blocks 72 to move towards the middle within the guide frame 71, at this time, the two side blocks 72 will move towards the middle on the surface of the guide frame 71. When the two side blocks 72 move towards the middle, the top fixing rod 74 and the sliding rod 73 will also move closer synchronously, so that the fixing rod 74 is elastically compressed. At this time, the two side blocks 72 will disengage from the positioning groove at the current position of the valve body 4. At this time, the handle 6 can be directly rotated to move upward on the inner wall of the handle 6 until the threaded part disengages from the inner wall of the support frame 5, so that the whole handle 6 can be taken out, and then it can be replaced. Just operate in the reverse direction during installation.

[0037] At the same time, when it is necessary to connect and install the connecting pipe 2 to an external device or pipeline, the threaded holes on the surface of the connecting pipe 2 can be directly aligned with the hole positions of the external device. At this time, the sliding sleeve 81 can be directly rotated to drive the toothed ring 82 to rotate, so that the toothed ring 82 meshes with the toothed block 83. At the same time, as the toothed ring 82 rotates, multiple toothed blocks 83 will rotate synchronously, so that the screw rod 84 penetrates through the threaded hole of the connecting pipe 2 to be threadedly connected with the threaded hole of the external device. At the same time, a special tool can also be inserted into the inner hexagonal part of the screw rod 84 to rotate. When it rotates, it will drive the toothed ring 82 to rotate synchronously, so that multiple screw rods 84 rotate synchronously, thereby improving the installation efficiency of the bolts.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A valve casting convenient for assembly, comprising a housing (1), characterized in that: The top end of the outer wall of the housing (1) is detachably mounted with an end cover (3) through bolts. The inner wall of the housing (1) penetrates and is rotatably connected to a valve body (4). The top end of the outer wall of the end cover (3) is fixedly connected with two groups of support frames (5). A handle (6) is threadedly connected between the two groups of support frames (5). The outer wall of the bottom end of the handle (6) is fixedly connected with two groups of connecting blocks (9). The outer walls of both sides of the housing (1) are fixedly connected with connecting pipes (2). A quick-release assembly (8) is arranged on the surface of the connecting pipe (2). A positioning assembly (7) is arranged on the inner wall of the top end of the valve body (4). The positioning assembly (7) includes a guide frame (71); Two groups of clamping blocks (72) penetrate and are slidably connected to the surface of the guide frame (71). The outer wall of the left clamping block (72) is fixedly connected with a fixed rod (74). A sliding rod (73) is elastically connected to the inner wall of the fixed rod (74) through a limiting spring (75).

2. The valve casting according to claim 1, which is easy to assemble, is characterized in that: The quick-release assembly (8) includes a sliding sleeve (81). A toothed ring (82) is fixedly connected to the surface of the sliding sleeve (81). Multiple threaded grooves are formed on the surface of the connecting pipe (2). A screw (84) is threadedly connected to the inner wall of the threaded groove of the connecting pipe (2). Multiple toothed blocks (83) are fixedly connected to the surface of the screw (84).

3. The valve casting according to claim 1, which is easy to assemble, is characterized in that: A U-shaped groove is formed on the surface of the top end of the valve body (4). The outer wall of the connecting block (9) is in contact with the inner wall of the U-shaped groove.

4. A valve casting that is easy to assemble according to claim 1, characterized in that: The bottom end of the outer wall of the guide frame (71) is in contact with the top end of the outer wall of the valve body (4). A positioning groove is formed on the inner wall of the top end of the valve body (4). The clamping block (72) is clamped with the inner wall of the positioning groove.

5. The valve casting that is easy to assemble according to claim 1, wherein: One end of the limiting spring (75) is fixedly connected to the left inner wall of the fixed rod (74). The other end of the limiting spring (75) is fixedly connected to the outer wall of the sliding rod (73).

6. A valve casting that is easy to assemble according to claim 1, wherein: The sliding rod (73) is slidably connected to the inner wall of the fixed rod (74). The outer wall of the sliding rod (73) is fixedly connected to the outer wall of the right clamping block (72).

7. The valve casting convenient for assembly according to claim 1, wherein: The bottom end of the outer wall of the guide frame (71) is in contact with the top end of the outer wall of the connecting block (9). The bottom end of the outer wall of the handle (6) is in contact with the inner wall of the top end of the valve body (4).

8. The valve casting that is easy to assemble according to claim 2, wherein: The sliding sleeve (81) is slidably connected to the surface of the connecting pipe (2). The outer wall of the toothed ring (82) is slidably connected to the outer surface of the screw (84). The toothed ring (82) meshes with the toothed block (83).

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