Chemical valve rod protection device with wide applicability

Abstract

The utility model discloses a chemical engineering valve rod protection device with wide applicability, which comprises a valve body and a valve main body arranged on the inner side of the valve body, a valve rod main body is arranged on the upper side of the valve main body, and a threaded rod is arranged on the upper side of the valve rod main body. Connecting pipes are arranged on the left side and the right side of the valve body correspondingly, through the movable connection design of a force unloading plate and a fixing plate, when pressure leakage is caused by sealing failure in the valve, the device can effectively control and limit the flying-out range of a valve rod body, potential harm to operators is reduced, and the safety of the working environment is improved; in a traditional valve design, internal pressure leakage may cause sudden flying-out of a valve rod main body, and serious casualties are caused. According to the novel protection device, when the valve rod body is impacted, impact force can be absorbed and dispersed through flying-out of the force unloading plate, and therefore the situation that an operator is directly hit is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to valve stem protection devices, and in particular relates to a chemical valve stem protection device with wide applicability. Background Art

[0002] The valve stem of a chemical valve is a critical component, responsible for transmitting operating force to open, close, or adjust the valve. During chemical production, the valve stem may be exposed to corrosive media, high temperatures and high pressures, and even mechanical impact, all of which can threaten the integrity and safety of the valve stem. Therefore, the design of a widely applicable chemical valve stem protection device aims to improve valve reliability and extend its service life.

[0003] However, an existing widely applicable stem protection device for chemical valves only relies on a clamping plate for blocking protection. During the use of the valve body, there is a lack of other protective structures. The internal seal will be damaged as the use time increases, resulting in valve body leakage. The internal pressure is released to the outside from the leakage point. At this time, if someone turns the swivel to lift the valve body, it is very likely that the valve stem body will splash out from the valve body, hitting people and causing casualties. Utility Model Content

[0004] The purpose of the present invention is to provide a chemical valve stem protection device with wide applicability, so as to solve the problem proposed in the above background technology that only a clamping plate is relied upon for blocking protection and other protection structures are lacking during the use of the valve body.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a widely applicable chemical valve stem protection device, comprising a valve body and a valve main body arranged at an inner position of the valve body;

[0006] A valve stem body is provided at the upper side of the valve body, and a threaded rod is provided at the upper side of the valve stem body;

[0007] Connecting pipes are respectively provided at the left and right sides of the valve body, a connecting ring is connected at the outer position of the connecting pipe, and a connecting seat is provided at the upper side of the valve body;

[0008] A fixing seat is provided at the middle position of the upper inner side of the connecting seat, and fixing plates are respectively provided at the left and right ends of the upper front side of the fixing seat, and unloading plates are respectively provided at the left and right ends of the upper rear side of the fixing seat. A clamping ring is provided at the upper side of the unloading plate, and a swivel is connected at the upper side of the clamping ring. An embedded ring is provided at the connection position of the clamping ring and the swivel;

[0009] A force unloading hole is provided at a middle position where the force unloading plate, the fixing plate and the fixing seat are connected, and a force unloading ball is provided at an inner position of the force unloading hole.

[0010] Preferably, the unloading ball is connected to the fixing seat by an integrated connection method, the fixing seat is connected to the connecting seat by a bolt connection method, and the connection between the fixing seat and the connecting seat is sealed.

[0011] Preferably, the threaded rod is connected to the valve stem body through an integrated connection, and the threaded rod is connected to the fixed seat, connecting seat and swivel through a threaded connection. The threaded rod can move up and down in the fixed seat, connecting seat and swivel through the thread.

[0012] Preferably, the swivel is connected to the insert ring by a sleeve connection, and the swivel can be rotated on the clamping ring through the insert ring.

[0013] Preferably, the threaded rod passes through the clamping plate and the circular hole, the clamping block is connected to the clamping plate by bolt connection, the clamping plate is connected to the slide rail through two clamping blocks, and the clamping plate can move up and down in the slide rail.

[0014] Preferably, the fixing plate is connected to the fixing seat by an integrated connection mode, the unloading plate is connected to the fixing seat by a movable connection mode of a rotating shaft, and the unloading plate can rotate backward on the fixing seat.

[0015] Preferably, the unloading plate and the fixed plate are respectively embedded in and wrapped with the unloading ball, and the clamping ring is connected to the two unloading plates in an integrated connection manner.

[0016] Preferably, a connecting sleeve is provided at the connecting position of the valve body and the valve stem body, and the valve body and the valve stem body are fixed by inserting a pin into the connecting sleeve.

[0017] Compared with the prior art, the present invention provides a chemical valve stem protection device with wide applicability, which has the following beneficial effects:

[0018] In a widely applicable chemical valve stem protection device, the following benefits can be achieved through the arrangement of a fixed seat, a snap ring, an insert ring, a round hole, a force unloading plate, a slide rail, a force unloading hole, and a force unloading ball:

[0019] Improved safety: Through the movable connection design of the unloading plate and the fixed plate, when the internal seal of the valve fails and causes pressure leakage, the device can effectively control and limit the flying range of the valve stem body, reducing potential harm to the operator and improving the safety of the working environment.

[0020] Preventing accidental injuries: In traditional valve designs, internal pressure leaks can cause the valve stem to suddenly fly out, resulting in serious casualties. This new protective device, however, absorbs and disperses the impact force when the valve stem is impacted by the fly-out unloading plate, thus preventing direct impact on the operator.

[0021] Convenience of operation: The operator can operate the swivel on one side of the fixed plate, so that even in an emergency, the operator can perform necessary operations in a relatively safe area without having to face possible dangerous areas directly.

[0022] Easy to inspect and maintain: By observing whether the unloading plate and the fixing plate are combined to wrap the unloading ball through the unloading hole, the installation status and integrity of the device can be intuitively judged, which facilitates regular inspection and maintenance to ensure that the device is always in good working condition.

[0023] Extend valve service life: Since the device can effectively control the flying out of the valve stem body, it reduces the damage to valve components caused by accidental impact, thereby helping to extend the service life of the entire valve system.

[0024] In short, the design of this chemical valve stem protection device not only improves the safety of operators by adding a safety protection layer, but also helps to improve the reliability and durability of the entire valve system. It is a very beneficial innovative improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present utility model.

[0026] Figure 2 It is a schematic diagram of the fixed plate structure in the present utility model.

[0027] Figure 3 The clamping plate in the utility model is Figure 2 Schematic diagram of the structure after removal.

[0028] Figure 4 The unloading plate in the utility model is Figure 3 Schematic diagram of the structure after removal.

[0029] Figure 5 It is a structural schematic diagram of the valve stem body in the utility model.

[0030] In the picture:

[0031] 1. Valve body; 2. Connecting pipe; 3. Connecting ring; 4. Fixed seat; 5. Swivel; 6. Threaded rod; 7. Valve stem body; 8. Connecting seat; 9. Fixed plate; 10. Clamping plate; 11. Clamping block; 12. Valve body; 13. Connecting sleeve; 14. Snap ring; 15. Insert ring; 16. Round hole; 17. Unloading plate; 18. Slide rail; 19. Unloading hole; 20. Unloading ball. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The utility model provides Figure 1-5 A widely applicable chemical valve stem protection device shown includes a valve body 1 and a valve main body 12 arranged at an inner side of the valve body 1;

[0034] A valve stem body 7 is provided at the upper side of the valve body 12, and a threaded rod 6 is provided at the upper side of the valve stem body 7;

[0035] Connecting pipes 2 are provided on the left and right sides of the valve body 1, and a connecting ring 3 is connected to the outer portion of the connecting pipe 2. A connecting seat 8 is provided on the upper side of the valve body 1.

[0036] A fixing seat 4 is provided at the middle position of the upper inner portion of the connecting seat 8. Fixing plates 9 are provided at the left and right ends of the upper front side of the fixing seat 4 respectively. Unloading plates 17 are provided at the left and right ends of the upper rear side of the fixing seat 4 respectively. A snap ring 14 is provided at the upper side of the unloading plate 17. The upper side of the snap ring 14 is connected to the swivel 5. An embedded ring 15 is provided at the connection position between the snap ring 14 and the swivel 5.

[0037] A force unloading hole 19 is provided at a middle position between the force unloading plate 17 and the connection between the fixing plate 9 and the fixing seat 4 , and a force unloading ball 20 is provided at an inner position of the force unloading hole 19 .

[0038] In this embodiment, the principle of use

[0039] This stem protection device for chemical valves is designed to improve valve safety, particularly in the event of internal seal failure leading to pressure leakage. Its core principle is to control and limit the dangerous splashing of the valve stem body 7 caused by internal pressure surges through the structural design of the unloading plate 17 and the retaining plate 9, as well as their connection to the retaining seat 4.

[0040] When the seal inside the valve is damaged, causing pressure leakage, the internal pressure pushes the valve stem 7 outward. This impact force first acts on the clamping plate 10, which, via the clamping block 11, moves within the slide rail 18, releasing some of the impact force upward. Subsequently, the impact force is sufficient to disconnect the unloading plate 17 from the fixed seat 4, causing it to fly outward behind the fixed plate 9. This process effectively limits the possible range of the valve stem 7's flight, reducing the risk of injury.

[0041] How to use

[0042] Installation inspection: When installing the unloading plate 17 and the fixing plate 9, the unloading hole 19 should be used to check whether the unloading plate 17 and the fixing plate 9 are correctly combined and wrapped with the unloading ball 20 to ensure the integrity and reliability of the device.

[0043] Normal Operation: When the valve is operating normally, the operator can raise or lower the valve body 12 by rotating the swivel 5 to adjust the valve opening. The threaded rod 6 is threadedly connected to the fixed seat 4, the connecting seat 8, and the swivel 5 to achieve the up and down movement of the valve body 12.

[0044] Emergency Procedures: Once a valve seal failure is detected, the operator should immediately cease operation and take necessary safety measures. In the event of an internal pressure leak, the valve stem body 7 is impacted, the clamping plate 10 begins to move, and the unloading plate 17 is disconnected from the fixing seat 4. The unloading plate 17 flies out, limiting the range of the valve stem body 7.

[0045] Operation in a safe area: In an emergency, the operator should stand on one side of the fixed plate 9 to operate the swivel 5. This can increase survival protection and reduce the risk of being hit by the flying valve stem body 7.

[0046] Repair and replacement: After confirming safety, the damaged seals should be repaired or replaced, and the entire valve stem protection device should be inspected to ensure it is intact so that it can be put back into use.

[0047] Through this design, the chemical valve stem protection device can provide additional safety protection in emergency situations, reduce the possibility of accidents, and protect the safety of operators. Figure 1-5As shown, the unloading ball 20 is connected to the fixed seat 4 by an integrated connection method, the fixed seat 4 is connected to the connecting seat 8 by a bolt connection method, and the connection between the fixed seat 4 and the connecting seat 8 is sealed, the threaded rod 6 is connected to the valve stem body 7 by an integrated connection method, and the threaded rod 6 is connected to the fixed seat 4, the connecting seat 8 and the swivel 5 by a threaded connection method, the threaded rod 6 can move up and down in the fixed seat 4, the connecting seat 8 and the swivel 5 by a thread, the swivel 5 is connected to the embedded ring 15 by a sleeve connection method, and the swivel 5 can rotate on the clamping ring 14 by the embedded ring 15, the threaded rod 6 passes through the clamping plate 10 and the circular hole 16, and the clamping block 11 is connected by a bolt The connection method is connected to the clamping plate 10, the clamping plate 10 is connected to the slide rail 18 through two clamping blocks 11, and the clamping plate 10 can move up and down in the slide rail 18, the fixed plate 9 is connected to the fixed seat 4 through an integrated connection method, the unloading plate 17 is connected to the fixed seat 4 through a rotating shaft movable connection method, the unloading plate 17 can rotate backward on the fixed seat 4, the unloading plate 17 and the fixed plate 9 are respectively embedded in the unloading ball 20, the clamping ring 14 is connected to the two unloading plates 17 through an integrated connection method, and a connecting sleeve 13 is provided at the connecting position of the valve body 12 and the valve stem body 7. The valve body 12 and the valve stem body 7 are fixed by inserting a pin into the connecting sleeve 13

[0048] Preferably, during the use of the valve body 1, the internal seal will be damaged as the use time becomes longer, thereby causing the valve body 1 to leak, and the internal pressure to be released to the outside from the leakage point. At this time, if someone turns the swivel 5 to lift the valve body 12, it is very likely that the valve stem body 7 will splash out from the valve body 1, hitting people and causing casualties. In this new model, a fixing plate 9 and a force unloading plate 17 are provided on the fixing seat 4, wherein the force unloading plate 17 and the fixing plate 9 are movably connected. When the internal pressure of the valve body 1 leaks, it will drive the valve stem body 7 to impact outward, lift the clamping plate 10, and move in the slide rail 18 through the clamping block 11, releasing the impact force to the upper side, which can disconnect the connection between the force unloading plate 17 and the fixing seat 4, causing it to be released to the rear side of the fixing plate 9 and fly out, thereby defining the range for the valve stem body 7 structure to fly out. People stand on one side of the fixing plate 9 to operate the swivel 5, which increases survival guarantee and plays a protective role.

[0049] When the unloading plate 17 and the fixing plate 9 are installed, it can be determined by checking at the unloading hole 19 whether the unloading plate 17 and the fixing plate 9 are combined to wrap the unloading ball 20 .

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A chemical valve stem protection device with wide applicability, comprising a valve body (1) and a valve main body (12) arranged at an inner side of the valve body (1); A valve stem body (7) is provided at an upper position of the valve body (12), and a threaded rod (6) is provided at an upper position of the valve stem body (7); Connecting pipes (2) are respectively provided at the left and right sides of the valve body (1), a connecting ring (3) is connected at the outer position of the connecting pipe (2), and a connecting seat (8) is provided at the upper side of the valve body (1); Its characteristics are: A fixing seat (4) is provided at the middle position of the upper inner portion of the connecting seat (8), fixing plates (9) are provided at the left and right ends of the upper front side of the fixing seat (4), and unloading plates (17) are provided at the left and right ends of the upper rear side of the fixing seat (4), a snap ring (14) is provided at the upper position of the unloading plate (17), a swivel (5) is connected at the upper position of the snap ring (14), and an insert ring (15) is provided at the connection position between the snap ring (14) and the swivel (5); A force unloading hole (19) is provided at the middle position of the connection between the force unloading plate (17), the fixing plate (9) and the fixing seat (4), and a force unloading ball (20) is provided at the inner side of the force unloading hole (19).

2. A chemical valve stem protection device with wide applicability according to claim 1, characterized in that: The unloading ball (20) is connected to the fixing seat (4) by an integrated connection method, the fixing seat (4) is connected to the connecting seat (8) by a bolt connection method, and the connection between the fixing seat (4) and the connecting seat (8) is sealed.

3. A chemical valve stem protection device with wide applicability according to claim 2, characterized in that: The threaded rod (6) is connected to the valve stem body (7) through an integrated connection, and the threaded rod (6) is connected to the fixed seat (4), the connecting seat (8) and the swivel (5) through a threaded connection. The threaded rod (6) can move up and down in the fixed seat (4), the connecting seat (8) and the swivel (5) through the thread.

4. A chemical valve stem protection device with wide applicability according to claim 3, characterized in that: The rotating ring (5) is connected to the embedded ring (15) by means of a sleeve-embedded connection, and the rotating ring (5) can be rotated on the clamping ring (14) through the embedded ring (15).

5. A chemical valve stem protection device with wide applicability according to claim 4, characterized in that: The threaded rod (6) passes through the clamping plate (10) and the circular hole (16); the clamping block (11) is connected to the clamping plate (10) by means of a bolt connection; the clamping plate (10) is connected to the slide rail (18) via two clamping blocks (11); and the clamping plate (10) can move up and down in the slide rail (18).

6. A chemical valve stem protection device with wide applicability according to claim 5, characterized in that: The fixed plate (9) is connected to the fixed seat (4) in an integrated connection manner, and the unloading plate (17) is connected to the fixed seat (4) in a rotating shaft movable connection manner. The unloading plate (17) can rotate backward on the fixed seat (4).

7. A chemical valve stem protection device with wide applicability according to claim 6, characterized in that: The unloading plate (17) and the fixed plate (9) are respectively embedded with and enclose the unloading ball (20), and the clamping ring (14) is connected to the two unloading plates (17) in an integrated connection manner.

8. The widely applicable chemical valve stem protection device according to claim 1, characterized in that: A connecting sleeve (13) is provided at the connection position between the valve body (12) and the valve stem body (7), and the valve body (12) and the valve stem body (7) are fixed by inserting a pin into the connecting sleeve (13).

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