Emptying valve body

Abstract

The utility model discloses an emptying valve body in the technical field of emptying valves, which comprises a valve body and a valve body turntable, a valve rod is assembled at the upper end of the valve body, a fixing seat is assembled at the middle section of the bottom end of the valve body turntable, a rotating rod is assembled at the bottom end of the fixing seat, the rotating rod is inserted into the valve rod, and a fixing hoop is assembled between the rotating rod and the valve rod. Three guide blocks are assembled on the outer wall of the rotating rod, three guide grooves are formed in the inner wall of the fixing hoop, the guide blocks are all installed in the guide grooves, fastening plates are installed at the two ends of an opening of the fixing hoop, fastening openings are formed in the side walls of the fastening plates, and fasteners are assembled in the fastening openings; the valve body of the emptying valve is reasonable in structural design, the rotating disc and the rotating rod can be conveniently detached, and can be conveniently and simply mounted together when needing to be used, so that the rotating block of the valve body does not occupy too much space when not being used daily, and the maintenance work of workers is not affected or hindered.

Description

Technical Field

[0001] The utility model relates to the technical field of vent valves, in particular to a vent valve body. Background Technique

[0002] The vent valve is actually an ordinary valve with various styles. Its name comes from its operation. Its function is to discharge pressurized gas or liquid during non-working or emergency states to avoid other accidents. Therefore, it is named "vent valve". The principle is that after the machine is shut down, the intake valve disc is closed, and the gas path of the vent valve is opened and then discharged. In this application, high-temperature main steam (high pressure / medium pressure / low pressure) is bypassed to the atmosphere. When the pressure and temperature rise to a certain specific point at the start of the waste heat boiler ignition. Since the control valve bears the full pressure difference, high noise and high vibration will occur in the valve and the downstream pipeline. Therefore, flow-limiting devices such as diffusers or silencers are usually installed downstream;

[0003] In the prior art, the vent valve is mainly used to control the fluidity of pipelines and other objects. The opening and closing of the vent valve are mainly controlled by the rotation of the rotating wheel installed on the upper side. In order to make the rotation of the rotating wheel more convenient and labor-saving, the diameter of the rotating wheel is generally set to be larger. However, the larger diameter of the rotating wheel makes it possible for the staff to collide with the switch rotating wheel when passing by or maintaining the vent valve daily. Moreover, the larger diameter of the rotating wheel also occupies more space, so that when the staff maintains the vent valve, they will be hindered and affected by the switch rotating wheel. Therefore, the prior art needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a vent valve body to solve the problems raised in the above background technique, that is, the diameter of the rotating wheel is generally set to be larger. However, the larger diameter of the rotating wheel makes it possible for the staff to collide with the switch rotating wheel when passing by or maintaining the vent valve daily. Moreover, the larger diameter of the rotating wheel also occupies more space, so that when the staff maintains the vent valve, they will be hindered and affected by the switch rotating wheel.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a vent valve body, including a valve body main body and a valve body turntable. A valve rod is assembled at the upper end of the valve body main body. A fixed seat is assembled in the middle section of the bottom end of the valve body turntable. A rotating rod is assembled at the bottom end of the fixed seat. The rotating rod is inserted into the valve rod. A fixed hoop is assembled between the rotating rod and the valve rod. Three guiding blocks are assembled on the outer wall of the rotating rod. Three guiding grooves are opened on the inner wall of the fixed hoop. The guiding blocks are all installed in the guiding grooves. Fastening plates are installed at both ends of the opening of the fixed hoop. Fastening openings are opened on the side walls of the fastening plates. Fastening pieces are assembled in the fastening openings.

[0006] Preferably, the fastener includes a fastening screw and an anti-loosening screw. A fastening nut is screwed on the outer part of the fastening screw. An anti-loosening thread groove is formed at the bottom end of the fastening screw, and the anti-loosening screw is screwed in the anti-loosening thread groove.

[0007] Preferably, an anti-loosening cylinder is sleeved on the outer part of the anti-loosening screw. Three limit posts are installed on the outer wall of the anti-loosening cylinder. The three limit posts are distributed in a triangular shape. A spiral groove matched with the fastening screw is formed on the inner wall of each limit post.

[0008] Preferably, an annular rotating groove is formed on the outer wall of the fastening nut, and the end of the limit post is arranged in the annular rotating groove.

[0009] Preferably, a fixing ring is fixedly installed at the upper end of the outer part of the fastening screw. An annular pressing piece, a spring and an annular rubber piece are sleeved on the circumferential surface of the fastening screw.

[0010] Preferably, the annular pressing piece is located above the fixing ring, the spring is located above the annular pressing piece, the annular rubber piece is located below the fixing ring, and an extrusion block is fixedly installed at the lower end edge of the annular pressing piece.

[0011] Compared with the prior art, the beneficial effect of the present utility model is that the structure of the blow-off valve body is reasonably designed;

[0012] The turntable and the rotating rod can be disassembled conveniently. When in use, they can be installed together conveniently and simply, so that the valve body rotating block does not occupy too much space during daily non-use, and does not affect or hinder the maintenance work of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic connection diagram of the rotating rod and the valve rod of the present utility model;

[0015] Figure 3 is a schematic diagram of the fastener of the present utility model.

[0016] In the figure: 1, valve body main body; 2, valve rod; 3, rotating rod; 4, fixed seat; 5, valve body turntable; 6, fixing hoop; 7, guiding block; 8, guiding groove; 9, fastening plate; 10, fastening opening; 11, fastener; 12, fastening screw; 13, fastening nut; 14, anti-loosening thread groove; 15, anti-loosening cylinder; 16, anti-loosening rod; 17, annular rotating groove; 18, fixing ring; 19, annular pressing piece; 20, extrusion block; 21, annular rubber piece; 22, spring; 23, spiral groove; 24, limit post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0019] In this technical solution, a blow-off valve body includes a valve body main body 1 and a valve body turntable 5, and is characterized in that: a valve rod 2 is assembled at the upper end of the valve body main body 1, a fixed seat 4 is assembled in the middle section at the bottom end of the valve body turntable 5, a rotating rod 3 is assembled at the bottom end of the fixed seat 4, the rotating rod 3 is inserted inside the valve rod 2, a fixing hoop 6 is assembled between the rotating rod 3 and the valve rod 2, three guiding blocks 7 are assembled on the outer wall of the rotating rod 3, three guiding grooves 8 are opened on the inner wall of the fixing hoop 6, and the guiding blocks 7 are all installed in the guiding grooves 8. At both ends of the opening of the fixing hoop 6, fastening plates 9 are installed, fastening openings 10 are opened on the side walls of the fastening plates 9, and fasteners 11 are assembled in the fastening openings 10;

[0020] In this technical solution, the valve body main body 1 is a blow-off valve, which is controlled to be opened and closed inside through the valve rod 2. The rotating rod 3 is connected to the opening and closing components inside the valve rod 2, and is driven to be opened and closed through the rotation of the valve body turntable 5. After the rotating rod 3 is connected to the valve rod 2, the connection part of the two is fixed through the fixing hoop 6. The guiding blocks 7 on the rotating rod 3 can be placed in the guiding grooves 8, thereby improving the connection strength, and the fixing hoop 6 is fastened through the fasteners 11.

[0021] In some technical solutions, referring to Figures 1-3 , the fastener 11 includes a fastening screw 12 and an anti-loosening screw 16, and a fastening nut 13 is screwed on the outside of the fastening screw 12; an anti-loosening screw groove 14 is opened at the bottom end of the fastening screw 12, and the anti-loosening screw 16 is screwed in the anti-loosening screw groove 14; an anti-loosening cylinder 15 is sleeved on the outside of the anti-loosening screw 16, and three limiting posts 24 are installed on the outer wall of the anti-loosening cylinder 15, and the three limiting posts 24 are distributed in a triangular shape; a spiral groove 23 matching with the fastening screw 12 is opened on the inner wall of each limiting post 24;

[0022] In this technical solution, the anti-loosening screw 16 is screwed in, and the three limiting posts 24 installed on the outside of the anti-loosening cylinder 15 on the anti-loosening screw 16 hold the fastening nut 13, thereby performing circumferential limitation on the fastening nut 13, and the spiral groove 23 on the limiting post 24 meshes with the fastening screw 12, thereby limiting the anti-loosening cylinder 15 and the anti-loosening screw 16.

[0023] In some technical solutions, referring toFigures 1-3 The inner wall of the anti - detachment cylinder 15 is provided with reverse internal threads, and the outer part of the anti - detachment screw rod 16 in contact with the anti - detachment cylinder 15 is provided with reverse external threads, and the reverse internal threads and the reverse external threads are matched with each other.

[0024] In this technical solution, the threads on the outside of the anti - detachment screw rod 16 are divided into two parts. The front part is matched with the internal threads of the anti - detachment screw groove 14, and the rear part is matched with the reverse internal threads of the anti - detachment cylinder 15, so as to install the anti - detachment cylinder 15 on the outside of the anti - detachment screw rod 16.

[0025] In some technical solutions, refer to Figures 1-3 The outer wall of the fastening nut 13 is provided with an annular rotating groove 17, and the end of the limiting column 24 is arranged in the annular rotating groove 17.

[0026] In this technical solution, when the anti - detachment screw rod 16 is screwed into the anti - detachment screw groove 14, the anti - detachment cylinder 15 will rotate accordingly. When the limiting column 24 contacts the fastening nut 13, it can rotate in the annular rotating groove 17 until it contacts the inner wall of the annular rotating groove 17, so as to hold the fastening nut 13 and perform circumferential limiting.

[0027] In some technical solutions, refer to Figures 1-3 A fixing ring 18 is fixedly installed at the upper end of the outer part of the fastening screw rod 12. An annular pressing piece 19, a spring 22 and an annular rubber sheet 21 are sleeved on the circumferential surface of the fastening screw rod 12.

[0028] In this technical solution, when the fastening screw rod 12 is rotated, the annular rubber sheet 21 slides upward due to the effect of the screw hole. With further screwing, the annular rubber sheet 21 contacts the fixing ring 18, and the annular rubber sheet 21 deforms due to the effect of the fixing ring 18 to seal the screw hole. The spring 22 is located above the annular pressing piece 19, so that the annular pressing piece 19 is pressed downward due to the effect of the spring 22. The pressing block 13 is pressed downward due to the effect of the annular pressing piece 19, so that the pressing block 13 further presses the edge of the annular rubber sheet 21, thereby improving the sealing effect. The annular pressing piece 19 is located above the fixing ring 18, the spring 22 is located above the annular pressing piece 19, the annular rubber sheet 21 is located below the fixing ring 18, and a pressing block 13 is fixedly installed at the lower end edge of the annular pressing piece 19.

[0029] Working principle: When in use, the rotating rod 3 on the valve body turntable 5 can be installed into the valve rod 2, then the fixing hoop 6 is placed at the connection of the two, and the guiding block 7 on the rotating rod 3 is placed in the guiding groove 8. Then, the fixing hoop 6 is fastened through the fastener 11.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the present utility model has been described above with reference to embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way. The reason for not exhaustively describing the situations of these combinations in this specification is only to save space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A blow-off valve body, comprising a valve body main body (1) and a valve body turntable (5), characterized in that: A valve rod (2) is assembled at the upper end of the valve body main body (1). A fixed seat (4) is assembled in the middle of the bottom end of the valve body turntable (5). A rotating rod (3) is assembled at the bottom end of the fixed seat (4). The rotating rod (3) is inserted into the valve rod (2). A fixing hoop (6) is assembled between the rotating rod (3) and the valve rod (2). Three guiding blocks (7) are assembled on the outer wall of the rotating rod (3). Three guiding grooves (8) are formed in the inner wall of the fixing hoop (6). The guiding blocks (7) are all installed in the guiding grooves (8). Fastening plates (9) are installed at both ends of the opening of the fixing hoop (6). A fastening opening (10) is formed in the side wall of the fastening plate (9). A fastener (11) is assembled in the fastening opening (10).

2. The blow-off valve body according to claim 1, characterized in that: The fastener (11) includes a fastening screw rod (12) and an anti - detachment screw rod (16). A fastening nut (13) is screwed on the outside of the fastening screw rod (12). An anti - detachment screw groove (14) is formed at the bottom end of the fastening screw rod (12). The anti - detachment screw rod (16) is screwed in the anti - detachment screw groove (14).

3. The blow-off valve body according to claim 2, wherein: An anti - detachment cylinder (15) is sleeved on the outside of the anti - detachment screw rod (16). Three limiting columns (24) are installed on the outer wall of the anti - detachment cylinder (15). The three limiting columns (24) are distributed in a triangular shape. A spiral groove (23) matching with the fastening screw rod (12) is formed in the inner wall of each limiting column (24). An annular rotating groove (17) is formed in the outer wall of the fastening nut (13). The end of the limiting column (24) is arranged in the annular rotating groove (17).

4. The blow-off valve body according to claim 3, wherein: A fixed ring (18) is fixedly installed at the upper end of the outside of the fastening screw rod (12). An annular pressing piece (19), a spring (22) and an annular rubber piece (21) are sleeved on the circumferential surface of the fastening screw rod (12).

5. The body of a vent valve according to claim 4, characterized in that: The annular pressing piece (19) is located above the fixed ring (18). The spring (22) is located above the annular pressing piece (19). The annular rubber piece (21) is located below the fixed ring (18). An extrusion block (20) is fixedly installed at the lower edge of the annular pressing piece (19).

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