Anti-disassembly alarm valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to an anti-disassembly alarm valve which comprises a valve body and an electric actuator, the electric actuator is mounted on the outer side of the valve body, connecting covers are fixed to flange plates on the two sides of the valve body respectively, and baffles are fixed to the sides, close to the electric actuator, of the connecting covers. According to the anti-disassembly alarm valve, when the alarm valve is installed, a worker needs to take out a specially-made butt joint rod to be in rotary butt joint with a special-shaped block, all connecting covers are opened on the outer side of a flange plate of the valve body, and at the moment, the worker can place a nut on the inner side of a baffle; the bolt penetrates through the flange plate of the valve body to be in rotary butt joint with the nut, the bolt and the nut are limited together to enable the alarm valve to be installed, then the butt joint rod is reversely rotated to enable the bolt and the nut to be hidden, and therefore the situation that people demount the alarm valve on purpose is prevented, and safety accidents are not prone to being caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a kind of anti-disassembly alarm valve. BACKGROUND

[0002] Alarm valve installs electric actuator, and the electric actuator of valve has alarm function, and electric actuator is usually equipped with various sensors and monitoring equipment, can realize fault alarm and state feedback, and the motor of electric actuator can detect abnormality and send alarm signal by built-in sensor during operation process, and electric actuator can detect when power voltage is too high or too low, and remind operator by alarm function;

[0003] Alarm valve is usually used in high-risk environment, and is related to the key safety operation of system, such as fire-fighting system, natural gas pipeline, petroleum chemical facility etc., and any disassembly or change can affect the alarm function of valve or the work of whole system, if someone intentionally disassembles alarm valve, it is easy to cause system failure or unable to alarm in time, thereby causing serious safety accident, therefore, we propose a kind of anti-disassembly alarm valve. SUMMARY

[0004] The utility model aims at providing a kind of anti-disassembly alarm valve to solve the problem of the above background technology that if someone intentionally disassembles alarm valve, it is easy to cause system failure or unable to alarm in time, thereby causing serious safety accident.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-disassembly alarm valve, including valve body and electric actuator, the outer side of valve body is installed with electric actuator, and the flange disc of valve body two sides is respectively fixed with connecting cover, and the side of connecting cover close to electric actuator is fixed with baffle, and the inside of baffle is equipped with through slot, the side of connecting cover away from baffle is connected with connecting plate by pivot, and the middle part of connecting plate one side is fixed with tooth column, the lower side of tooth column is butt joint with tooth plate.

[0006] Preferably, the side of the tooth plate is fixed with a sliding plate, and the side of the connecting cover close to the sliding plate is provided with a sliding groove.

[0007] Preferably, the sliding plate and the sliding groove are slidingly connected, and the inside of the sliding plate is penetrated by a screw rod.

[0008] Preferably, the two ends of the screw rod are respectively connected with the sliding groove by bearings, and one end of the screw rod is connected with a tooth disc by a center rod.

[0009] Preferably, the tooth disc is movably connected with the connecting cover by bearings, and the outside of the tooth disc is connected with the inside of a tooth ring.

[0010] Preferably, the tooth ring is movably connected with the connecting cover through a bearing, and the tooth disc on the upper side of the tooth ring is connected with the bevel gear one through a center rod.

[0011] Preferably, the bevel gear one is movably connected with the connecting cover through a bearing, and the bevel gear one is opposite to the bevel gear two.

[0012] Preferably, the bevel gear two is movably connected with the connecting cover through a bearing, and the upper side of the bevel gear two is fixed with the special-shaped block which is opposite to the groove on the lower side of the opposite rod.

[0013] Preferably, the tooth column is in meshing opposite connection with the tooth plate, the sliding plate is matched with the sliding groove, and the sliding plate is in threaded connection with the screw rod.

[0014] Preferably, the tooth disc is in meshing opposite connection with the tooth ring, and the bevel gear one is in meshing opposite connection with the bevel gear two.

[0015] Compared with the prior art, the beneficial effects of the utility model are that: the anti-disassembly alarm valve, when the alarm valve is installed, the staff needs to take out the special opposite rod and the special-shaped block to rotate and connect, so that each connecting cover is opened outside the flange plate of the valve main body, at this time, the staff can place the nut on the inner side of the baffle, and then rotate and connect the bolt penetrating the flange plate of the valve main body and the nut, so that the bolt and the nut are limited together, so that the installation of the alarm valve is completed, and then the opposite rod is reversely rotated, so that the bolt and the nut are hidden, thereby preventing someone from intentionally disassembling the alarm valve, and safety accidents are not easy to cause. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the valve main body and the electric actuator of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the valve main body and the connecting plate of the utility model;

[0018] Figure 3 It is a connecting cover, a baffle and a connecting structure schematic view of the utility model;

[0019] Figure 4 It is a connecting cover, a baffle and a connecting structure schematic view of the utility model; Figure 1 It is a three-dimensional structure schematic view of the valve main body and the electric actuator of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic view of the valve main body and the electric actuator of the utility model; Figure 3 It is a three-dimensional structure schematic view of the valve main body and the electric actuator of the utility model;

[0021] In the figure: 1, valve body; 101, electric actuator; 2, connecting cover; 201, baffle; 202, through slot; 203, connecting plate; 204, tooth column; 205, tooth plate; 206, sliding plate; 207, sliding groove; 208, screw rod; 209, tooth disc; 210, tooth ring; 211, bevel gear one; 212, bevel gear two; 213, special-shaped block; 214, butt joint rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of anti-disassembly alarm valve, including valve body 1 and electric actuator 101, electric actuator 101 is installed on the outside of valve body 1, and the flange plate of valve body 1 two sides is respectively fixed with connecting cover 2, and connecting cover 2 side close to electric actuator 101 is fixed with baffle 201, and the inside of baffle 201 is equipped with through slot 202, connecting cover 2 side away from baffle 201 is connected with connecting plate 203 by pivot, and the middle part of connecting plate 203 side is fixed with tooth column 204, tooth column 204 lower side is butt joint with tooth plate 205, and the side of tooth plate 205 is fixed with sliding plate 206, connecting cover 2 side close to sliding plate 206 is equipped with sliding groove 207, and sliding plate 206 and sliding groove 207 sliding butt joint, and the inside of sliding plate 206 is penetrated with screw rod 208, and the both ends of screw rod 208 are respectively connected with sliding groove 207 by bearing, and one end of screw rod 208 is connected with tooth disc 209 by center rod, tooth disc 209 is connected with connecting cover 2 by bearing, and the outside of tooth disc 209 is opposite to the inside of tooth ring 210, tooth ring 210 is connected with connecting cover 2 by bearing, and the tooth disc 209 on tooth ring 210 upper side is connected with bevel gear one 211 by center rod, bevel gear one 211 is connected with connecting cover 2 by bearing, and bevel gear one 211 is opposite to bevel gear two 212, bevel gear two 212 is connected with connecting cover 2 by bearing, and the upper side of bevel gear two 212 is fixed with special-shaped block 213 by center rod, special-shaped block 213 is opposite to the recess on butt joint rod 214 lower side, tooth column 204 and tooth plate 205 are engaged butt joint, sliding plate 206 and sliding groove 207 are matched, and sliding plate 206 and screw rod 208 are screw connection, tooth disc 209 and tooth ring 210 are engaged butt joint, bevel gear one 211 and bevel gear two 212 are engaged butt joint, and special-shaped block 213 and the recess on butt joint rod 214 lower side are matched.

[0024] In particular implementation, according to Figures 1-5 , the valve body 1 is installed with an electric actuator 101, which is equipped with various sensors and monitoring devices, and can realize fault alarm and state feedback. When the alarm valve is installed, the worker can take out the special butt rod 214 and butt joint with the special-shaped block 213. Through the matching of the special-shaped block 213 and the groove on the lower side of the butt rod 214, the special-shaped block 213 can be stably rotated when the butt rod 214 rotates. At this time, the worker can only rotate the special-shaped block 213 by the special butt rod 214. When the special-shaped block 213 rotates, the bevel gear two 212 rotates with the special-shaped block 213. Through the meshing butt joint of the bevel gear one 211 and the bevel gear two 212, the bevel gear one 211 rotates with the bevel gear two 212. At this time, the bevel gear one 211 drives the tooth disc 209 to rotate. Through the meshing butt joint of the tooth disc 209 and the tooth ring 210, the tooth disc 209 can drive the tooth ring 210 to rotate, so that the tooth ring 210 can drive the remaining tooth discs 209 to rotate at the same time. At this time, each tooth disc 209 drives the screw 208 to rotate at the same time. Through the matching of the sliding plate 206 and the sliding groove 207, the sliding plate 206 will not rotate with the screw 208. Through the threaded connection of the sliding plate 206 and the screw 208, the sliding plate 206 can stably slide along the sliding groove 207. At this time, the sliding plate 206 pushes the tooth plate 205 to move. Through the meshing butt joint of the tooth column 204 and the tooth plate 205, the tooth plate 205 can push the tooth column 204 to rotate. At this time, the tooth column 204 drives the connecting plate 203 to rotate to the outside of the connecting cover 2, so that the connecting cover 2 is opened outside the flange plate of the valve body 1, and the flange plate of the valve body 1 is exposed. At this time, the worker can place the nut inside the baffle 201, align the nut with the through slot 202, and then rotate the bolt penetrating the flange plate of the valve body 1 and the nut to butt joint. With the bolt and the nut restricted together, one end of the bolt can extend from the inside of the through slot 202, so that the nut is restricted inside the baffle 201, and the alarm valve is completed at the same time. At this time, the butt rod 214 is rotated in the opposite direction, so that the butt rod 214 drives the special-shaped block 213 to rotate in the opposite direction, so that the connecting plate 203 covers the bolt, so that the bolt and the nut are hidden. At this time, only the special-shaped block 213 can be rotated by the special butt rod 214 to open the connecting plate 203, so that the bolt is exposed, and the alarm valve can be disassembled, so as to prevent someone from deliberately disassembling the alarm valve and causing safety accidents.

[0025] In summary, when the alarm valve is installed, the staff needs to take out the special butt rod 214 and rotate the butt joint with the special-shaped block 213, when the special-shaped block 213 rotates, each connecting cover 2 is opened outside the flange plate of the valve body 1, at this time the staff can place the nut inside the baffle 201, then rotate the bolt through the flange plate of the valve body 1 and the nut to rotate the butt joint, so that the nut is limited inside the baffle 201, at the same time the alarm valve is completed installation, at this time the butt rod 214 is reversely rotated, so that the connecting plate 203 covers the bolt, the bolt and the nut are hidden, so that it is not easy to cause safety accidents that someone intentionally disassembles the alarm valve, the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tamper-proof alarm valve, comprising a valve body (1) and an electric actuator (101), characterized in that: The outer side of the valve body (1) is provided with an electric actuator (101), and the flanges on both sides of the valve body (1) are respectively fixed with a connecting cover (2), and the side close to the electric actuator (101) of the connecting cover (2) is fixed with a baffle (201), and the inside of the baffle (201) is provided with a through slot (202), the side away from the baffle (201) of the connecting cover (2) is movably connected with a connecting plate (203) through a rotating shaft, and the middle of one side of the connecting plate (203) is fixed with a tooth column (204), and the lower side of the tooth column (204) is butt jointed with a tooth plate (205).

2. A tamper-evident alarm valve according to claim 1, wherein: One side of the tooth plate (205) is fixed with a sliding plate (206), and the side close to the sliding plate (206) of the connecting cover (2) is provided with a sliding groove (207).

3. A tamper-evident alarm valve according to claim 2, wherein: The sliding plate (206) and the sliding groove (207) are slidably connected, and the inside of the sliding plate (206) penetrates a screw rod (208).

4. A tamper-evident alarm valve according to claim 3, wherein: Both ends of the screw rod (208) are movably connected with the sliding groove (207) through bearings, and one end of the screw rod (208) is connected with a tooth disc (209) through a center rod.

5. A tamper-evident alarm valve according to claim 4, wherein: The tooth disc (209) is movably connected with the connecting cover (2) through a bearing, and the outside of the tooth disc (209) is butt jointed with the inside of a tooth ring (210).

6. A tamper-evident alarm valve according to claim 5, wherein: The tooth ring (210) is movably connected with the connecting cover (2) through a bearing, and the tooth disc (209) on the upper side of the tooth ring (210) is connected with a bevel gear one (211) through a center rod.

7. A tamper-evident alarm valve according to claim 6, wherein: The bevel gear one (211) is movably connected with the connecting cover (2) through a bearing, and the bevel gear one (211) is butt jointed with a bevel gear two (212).

8. A tamper-evident alarm valve according to claim 7, wherein: The bevel gear two (212) is movably connected with the connecting cover (2) through a bearing, and the upper side of the bevel gear two (212) is fixed with a special-shaped block (213) through a center rod, and the special-shaped block (213) is butt jointed with a recess on the lower side of a butt joint rod (214).

9. A tamper-evident alarm valve according to claim 2, wherein: The tooth column (204) and the tooth plate (205) are in meshing butt joint, the sliding plate (206) and the sliding groove (207) are matched, and the sliding plate (206) and the screw rod (208) are in threaded connection.

10. A tamper-evident alarm valve according to claim 6, wherein: The tooth disc (209) and the tooth ring (210) are in meshing butt joint, and the bevel gear one (211) and the bevel gear two (212) are in meshing butt joint.

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