An explosion-proof valve protective cover with a sealed installation structure

Abstract

The present invention discloses an explosion-proof valve protective cover with a sealed installation structure, which includes a protective cover body. A connection groove is formed inside the lower end of the protective cover body. An activity ring is slidably connected in the connection groove. A plurality of groups of connecting rods are fixedly connected to the upper end of the activity ring. One end of the first spring is fixedly connected to the activity ring, and the other end is fixedly connected to the connection groove. The upper end of the bearing is fixedly connected with a second spring. A plug is movably connected in the through hole. Both sides of the protective cover body are fixedly connected with conduits, and the positions of the conduits correspond to the through holes. By installing the protective cover body at the position of the explosion-proof valve, during the installation process, through the upward movement of the activity ring, the limiting mechanism can be released. At this time, under the elastic force of the third spring, through the double sealing of the rubber sealing strip and the sealant, the sealing effect is improved, and the steam will be discharged into the conduit through the through hole after spraying, which can prevent the steam from spraying out from the side and scalding the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of protective valve covers, and specifically to an explosion-proof valve cover with a sealed installation structure. Background Art

[0002] An explosion-proof valve is a new product for protecting the boiler body and flue from being sucked flat. The explosion-proof valve is applicable in departments such as building materials, metallurgy, chemical industry, and electric power, and is used as a pressure relief device for compressed explosive gas pipelines; for example, the Chinese patent with the publication number CN215260583U discloses an explosion-proof valve cover for a water heating stove. The cover is a hollow seamless structure, with an opening on its back for the explosion-proof valve to extend into the cover, and a nozzle at its bottom for guiding high-temperature water columns to spray downward.

[0003] However, the above solution has the following deficiencies: In the above patent, although the cover is installed at the position of the explosion-proof valve and can block high-temperature steam from the front, due to the poor sealing performance of the cover, the steam will spray out to the external environment from the side after being blocked, which may cause the passing staff to be scalded. At the same time, most of the existing sealed covers also use a single sealing rubber strip to achieve the sealing effect. After long-term use, the sealing rubber strip will age and break, affecting the overall sealing effect. Therefore, we have developed an explosion-proof valve cover with a sealed installation structure. Summary of the Invention

[0004] The purpose of the present invention is to provide an explosion-proof valve cover with a sealed installation structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An explosion-proof valve cover with a sealed installation structure includes a cover body. A connection groove is formed in the lower end of the cover body. A movable ring is slidably connected in the connection groove. A plurality of connecting rods are fixedly connected to the upper end of the movable ring. The connecting rods are slidably connected in a chute. The chute is formed in the cover body. A first spring is sleeved outside the connecting rods. One end of the first spring is fixedly connected to the movable ring, and the other end is fixedly connected to the connection groove. Hoses are provided on both sides of the connecting rods. The hoses are fixedly connected in the movable ring. The lower ends of the hoses extend out of the movable ring, and the upper ends extend into a liquid storage cavity. The liquid storage cavity is formed in the cover body. A sealing glue is provided in the liquid storage cavity.

[0007] An I-shaped rod is provided in the liquid storage cavity, and the upper end of the I-shaped rod is slidably connected to the limit cavity, and the limit cavity is opened in the protective cover body. The upper end of the I-shaped rod is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to the limit cavity. A cone rod is provided in the liquid storage cavity, and the upper end of the cone rod extends into the give-way cavity, and the give-way cavity is opened in the I-shaped rod. The upper end of the I-shaped rod is movably connected to the bearing, and the bearing is slidably connected to the give-way cavity. The upper end of the bearing is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the give-way cavity. A limiting mechanism is provided between the two groups of I-shaped rods, through holes are provided on both sides of the protective cover body, and plugs are movably connected in the through holes, and catheters are fixedly connected to both sides of the protective cover body, and the position of the catheter corresponds to the through holes.

[0008] Preferably, a take-up wheel is provided at the lower end of the bearing, a traction rope is wound around the outside of the take-up wheel, one end of the traction rope away from the take-up wheel is fixedly connected to the give-way cavity, a stirring fan is provided in the liquid storage cavity, the stirring fan is fixedly sleeved on the outside of the cone rod, two groups of limit rods are provided on the lower side of the stirring fan, and the opposing surfaces of the two groups of limit rods are slidably connected to the cone rod.

[0009] Preferably, the limiting mechanism includes a trigger rope, which is arranged in a slide groove, and both ends of the trigger rope are fixedly connected with T-shaped locking rods, which are slidably connected to the spring cavity, and the spring cavity is opened in the protective cover body, and a limiting spring is sleeved on the outside of the trigger rope, one end of the limiting spring is fixedly connected to the T-shaped locking rod, and the other end is fixedly connected to the spring cavity, and the end of the T-shaped locking rod away from the trigger rope is clamped in the clamping groove, and the clamping groove is opened in the I-shaped rod.

[0010] Preferably, a liquid guide ring is fixedly connected to the protective cover body, a plurality of groups of liquid guide cotton strips are arranged outside the liquid guide ring, the liquid guide cotton strips are fixedly connected to the protective cover body, and a rubber sealing ring is fixedly connected to the lower end of the protective cover body.

[0011] Preferably, the plug is fixedly connected with two groups of T-rods at one end close to the protective cover body, the T-rods are slidably connected in a connecting cavity, the connecting cavity is opened in the protective cover body, a fourth spring is sleeved on the outside of the T-rods, one end of the fourth spring is fixedly connected to the connecting cavity, and the other end is fixedly connected to the T-rods.

[0012] Preferably, a cavity is provided in the conduit, a coolant is provided in the cavity, and a sealing film is fixedly connected to the upper end of the hose.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by installing the protective cover body at the position of the explosion-proof valve, the limit mechanism can be removed by moving the movable ring upward during the installation process. At this time, under the elastic force of the third spring, the I-shaped rod will press the sealant in the liquid storage chamber into the hose, and the sealant will finally fall along the hose to the contact point between the protective cover body and the stove. The sealing effect is improved through the two-way sealing of the rubber sealing strip and the sealant, and the steam will be discharged into the conduit through the through hole after being sprayed out, which can prevent the steam from spraying out from the side and causing burns to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 It is a cross-sectional structural schematic diagram of the connection relationship between the movable ring and the connecting groove of the present invention;

[0017] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0018] Figure 5 It is a cross-sectional structural schematic diagram of the connection relationship between the I-shaped rod and the cone rod of the present invention;

[0019] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the protective cover body of the present invention;

[0020] Figure 7 It is a three-dimensional structural schematic diagram of the connection relationship between the movable ring and the connecting rod of the present invention;

[0021] Figure 8 It is a schematic structural diagram of the positional relationship between the explosion-proof valve and the protective cover body of the present invention.

[0022] In the figure: 1. protective cover body; 2. cavity; 3. conduit; 4. through hole; 5. I-shaped rod; 6. rubber sealing ring; 7. liquid guide ring; 8. liquid storage chamber; 9. liquid guide cotton strip; 10. plug; 11. fourth spring; 12. hose; 13. movable ring; 14. slide groove; 15. third spring; 16. connecting rod; 17. first spring; 18. connecting groove; 19. clamping groove; 20. T-shaped locking rod; 21. limit spring; 22. spring chamber; 23. trigger rope; 24. stirring fan; 25. cone rod; 26. limit rod; 27. traction rope; 27. traction rope; 28. take-up wheel; 29. bearing; 30. give way chamber; 31. second spring; 32. limit chamber; 33. connecting chamber; 34. T-shaped rod; 35. explosion-proof valve; 36. sealing membrane. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-8 , this invention provides a technical solution:

[0025] Embodiment 1:

[0026] An explosion-proof valve protective cover with a sealed installation structure comprises a protective cover body 1, a connecting groove 18 is provided in the lower end of the protective cover body 1, a movable ring 13 is slidably connected in the connecting groove 18, a plurality of connecting rods 16 are fixedly connected to the upper end of the movable ring 13, the plurality of connecting rods 16 are arranged at equal intervals, the connecting rods 16 are slidably connected in the slide groove 14, the slide groove 14 is provided in the protective cover body 1, a first spring 17 is sleeved on the outer side of the connecting rod 16, one end of the first spring 17 is fixedly connected to the movable ring 13, and the other end is fixedly connected to the connecting groove 18, the first spring 17 can ensure that the movable ring 13 pops out of the connecting groove 18 before the protective cover body 1 is installed, and a hose 12 is provided on both sides of the connecting rod 16;

[0027] The hose 12 is fixedly connected to the movable ring 13, the lower end of the hose 12 extends out of the movable ring 13, and the upper end extends into the liquid storage chamber 8. When the movable ring 13 moves upward, since the hose 12 is spirally arranged in the connecting groove 18, the hose 12 will be folded in the connecting groove 18. The liquid storage chamber 8 is opened in the protective cover body 1, and the liquid storage chamber 8 is provided with a sealant. When the protective cover body 1 is installed, the I-shaped rod 5 will completely discharge the sealant in the liquid storage chamber 8. After the sealant is completely dry, the protective cover body 1 can be double-sealed by the sealant and the rubber sealing ring 6;

[0028] An I-shaped rod 5 is provided in the liquid storage chamber 8, and the upper end of the I-shaped rod 5 is slidably connected to the limit cavity 32, and the limit cavity 32 is provided in the protective cover body 1. The upper end of the I-shaped rod 5 is fixedly connected to the third spring 15, and the other end of the third spring 15 is fixedly connected to the limit cavity 32. A cone rod 25 is provided in the liquid storage chamber 8, and the upper end of the cone rod 25 extends into the clearance cavity 30, and the clearance cavity 30 is provided in the I-shaped rod 5. When the I-shaped rod 5 moves downward, the cone rod 25 connected to its lower end is driven to move synchronously. After moving downward, the cone rod 25 punctures the sealing film 36 provided in the upper end of the hose 12, and the sealant in the liquid storage chamber 8 can enter the hose 12 at this time;

[0029] The upper end of the I-shaped rod 5 is movably connected to the bearing 29. The bearing 29 is slidably connected to the relief cavity 30. The bearing 29 can ensure the normal rotation of the tapered rod 25. The upper end of the bearing 29 is fixedly connected to the second spring 31, and the other end of the second spring 31 is fixedly connected to the relief cavity 30. A limiting mechanism is provided between the two groups of I-shaped rods 5, and the limiting mechanism can limit the two groups of I-shaped rods 5. Through holes 4 are opened on both sides inside the protective cover body 1. A plug 10 is movably connected inside the through holes 4. Guide pipes 3 are fixedly connected to both sides of the protective cover body 1, and the positions of the guide pipes 3 correspond to the through holes 4. When the connecting rod 16 triggers the limiting mechanism, at this time, the I-shaped rod 5 is disengaged from the limit of the limiting mechanism, and at the same time, under the elastic force of the third spring 15, the I-shaped rod 5 moves downward along the limiting cavity 32.

[0030] Embodiment 2

[0031] On the basis of Embodiment 1, in order to enable the sealant to be discharged from the hose 12 more quickly and ensure that part of the liquid inside the protective cover body 1 can be discharged into the external environment, a wire reel 28 is provided at the lower end of the bearing 29. A towing rope 27 is wound around the outside of the wire reel 28. One end of the towing rope 27 away from the wire reel 28 is fixedly connected to the relief cavity 30. A stirring fan 24 is provided in the liquid storage cavity 8. The stirring fan 24 is fixedly sleeved on the outside of the tapered rod 25. Two limiting rods 26 are provided below the stirring fan 24. The opposite surfaces of the two limiting rods 26 are slidably connected to the tapered rod 25. When the two limiting rods 26 provided inside the lower side of the tapered rod 25 contact the lower end of the liquid storage cavity 8, at this time, the tapered rod 25 will not continue to move downward. The wire reel 28 sleeved on the outside of the tapered rod 25 moves upward along the relief cavity 30. Since the towing rope 27 is fixedly connected to the relief cavity 30, at this time, the wire reel 28 will start to rotate during the upward movement. The rotation of the wire reel 28 drives the tapered rod 25 to rotate synchronously. At this time, the stirring fan 24 starts to rotate and stir the sealant to prevent the surface of the sealant from solidifying due to long-term storage.

[0032] The limiting mechanism includes a trigger rope 23. The trigger rope 23 is arranged in the chute 14. T-shaped locking rods 20 are fixedly connected to both ends of the trigger rope 23. The T-shaped locking rods 20 are slidably connected to the spring cavity 22. The spring cavity 22 is opened in the protective cover body 1. A limiting spring 21 is sleeved on the outside of the trigger rope 23. One end of the limiting spring 21 is fixedly connected to the T-shaped locking rod 20, and the other end is fixedly connected to the spring cavity 22. The end of the T-shaped locking rod 20 away from the trigger rope 23 is clamped in the clamping groove 19. The clamping groove 19 is opened in the I-shaped rod 5. When the upper end of the connecting rod 16 contacts the trigger rope 23, at this time, as the movable ring 13 continuously moves upward, the trigger rope 23 will be pushed upward. The upward movement of the trigger rope 23 drives the T-shaped locking rods 20 connected to both ends of it to move synchronously. When the T-shaped locking rod 20 disengages from the clamping groove 19, at this time, under the elastic force of the third spring 15, the I-shaped rod 5 moves downward along the limiting cavity 32.

[0033] A liquid guide ring 7 is fixedly connected inside the protective cover body 1. A number of groups of liquid guide cotton strips 9 are arranged outside the liquid guide ring 7. The liquid guide cotton strips 9 are fixedly connected inside the protective cover body 1. A rubber sealing ring 6 is fixedly connected inside the lower end of the protective cover body 1. Two groups of T-shaped rods 34 are fixedly connected to one end of the plug 10 close to the protective cover body 1. The T-shaped rods 34 are slidably connected inside the connection cavity 33. The connection cavity 33 is formed inside the protective cover body 1. A fourth spring 11 is sleeved outside the T-shaped rods 34. One end of the fourth spring 11 is fixedly connected to the connection cavity 33, and the other end is fixedly connected to the T-shaped rods 34. When the explosion-proof valve 35 installed on the stove starts to eject gas outward due to excessive steam pressure inside the stove, the plug 10 clamped inside the through hole 4 is pushed out of the through hole 4. The outward movement of the plug 10 drives the two groups of T-shaped rods 34 to move outward along the connection cavity 33. At this time, the fourth spring 11 is compressed. When the steam is completely discharged, at this time, under the elastic force of the fourth spring 11, the plug 10 is re-clamped into the through hole 4. The condensed water droplets on the inner wall of the protective cover body 1 slide into the liquid guide ring 7. The water droplets stored in the liquid guide ring 7 are discharged into the external environment through the liquid guide cotton strips 9. A cavity 2 is formed inside the conduit 3, and a coolant is arranged inside the cavity 2.

[0034] Working principle: During use, the protective cover body 1 is installed at the position of the explosion-proof valve 35 on the stove. During the installation process, as the screw arranged inside the protective cover body 1 is continuously tightened, the movable ring 13 slidably connected inside the connection groove 18 will be extruded to move inward. The upward movement of the movable ring 13 drives a number of groups of connecting rods 16 connected to its upper end to move synchronously. When the upper ends of the connecting rods 16 come into contact with the trigger rope 23, at this time, as the movable ring 13 continuously moves upward, the trigger rope 23 will be pushed upward. The upward movement of the trigger rope 23 drives the T-shaped locking rods 20 connected to both ends of it to move synchronously. When the T-shaped locking rods 20 are disengaged from the clamping groove 19, at this time, under the elastic force of the third spring 15, the I-shaped rod 5 moves downward along the limiting cavity 32. During the downward movement of the I-shaped rod 5, the conical rod 25 connected to its lower end moves synchronously;

[0035] After the cone rod 25 moves downward, it punctures the sealing film 36 arranged in the upper end of the hose 12. At this time, the sealant in the liquid storage chamber 8 can enter the hose 12. When the two sets of limit rods 26 arranged on the lower side of the cone rod 25 contact the lower end of the liquid storage chamber 8, the cone rod 25 will not continue to move downward. At this time, as the I-shaped rod 5 continues to move downward, the cone rod 25 will not be squeezed and move downward. At this time, the take-up wheel 28 sleeved on the outer side of the cone rod 25 moves upward along the give-way chamber 30. Since the traction rope 27 is moved and fixedly connected to the give-way chamber 30, at this time, when the take-up wheel 28 moves upward, During the movement, the wire take-up wheel 28 will start to rotate, and the cone rod 25 will rotate synchronously. At this time, the stirring fan 24 will start to rotate. During the rotation, the stirring fan 24 will start to stir the sealant in the liquid storage chamber 8 to prevent the sealant surface from solidifying due to long-term storage. As the I-shaped rod 5 continues to move downward, the stirred sealant is introduced into the external environment along the hose 12. When the protective cover body 1 is installed, the liquid storage chamber 8 is completely discharged. After the sealant is completely dry, the sealant and the rubber sealing ring 6 can achieve double sealing of the protective cover body 1.

[0036] When the explosion-proof valve 35 installed on the stove starts to spray outward due to the excessive steam pressure in the stove, the plug 10 clamped in the through hole 4 pushes out of the through hole 4. At this time, the sprayed steam can be discharged into the conduit 3 through the through hole 4. The conduit 3 is provided with a coolant, which can condense the sprayed steam to a certain extent. After cooling, the steam is discharged into the external environment through the conduit 3. At this time, under the elastic force of the fourth spring 11, the plug 10 re-seals the through hole 4.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof valve protective cover with a sealed installation structure, comprising a protective cover body (1), characterized in that: A connecting groove (18) is provided in the lower end of the protective cover body (1), a movable ring (13) is slidably connected in the connecting groove (18), a plurality of connecting rods (16) are fixedly connected to the upper end of the movable ring (13), the connecting rods (16) are slidably connected in the slide groove (14), the slide groove (14) is provided in the protective cover body (1), a first spring (17) is sleeved on the outer side of the connecting rod (16), one end of the first spring (17) is fixedly connected to the movable ring (13), and the other end is fixedly connected to the connecting groove (18), a hose (12) is provided on both sides of the connecting rod (16), the hose (12) is fixedly connected in the movable ring (13), the lower end of the hose (12) extends out of the movable ring (13), and the upper end extends into the liquid storage cavity (8), the liquid storage cavity (8) is provided in the protective cover body (1), and a sealant is provided in the liquid storage cavity (8); An I-shaped rod (5) is provided in the liquid storage cavity (8), the upper end of the I-shaped rod (5) is slidably connected to a limiting cavity (32), the limiting cavity (32) is provided in the protective cover body (1), the upper end of the I-shaped rod (5) is fixedly connected to a third spring (15), the other end of the third spring (15) is fixedly connected to the limiting cavity (32), the liquid storage cavity (8) is provided with a cone rod (25), the upper end of the cone rod (25) extends into a clearance cavity (30), the clearance cavity (30) is provided in the I-shaped rod (5), and the upper end of the I-shaped rod (5) is movable. connected to a bearing (29), the bearing (29) is slidably connected to a clearance cavity (30), a second spring (31) is fixedly connected to the upper end of the bearing (29), the other end of the second spring (31) is fixedly connected to the clearance cavity (30), a limiting mechanism is provided between the two groups of the I-shaped rods (5), through holes (4) are provided on both sides of the protective cover body (1), a plug (10) is movably connected to the through hole (4), and a conduit (3) is fixedly connected to both sides of the protective cover body (1), and the position of the conduit (3) corresponds to the through hole (4); The limiting mechanism comprises a trigger rope (23), the trigger rope (23) is arranged in the slide groove (14), both ends of the trigger rope (23) are fixedly connected to T-shaped locking rods (20), the T-shaped locking rod (20) is slidably connected in the spring cavity (22), the spring cavity (22) is opened in the protective cover body (1), the outer side of the trigger rope (23) is sleeved with a limiting spring (21), one end of the limiting spring (21) is fixedly connected to the T-shaped locking rod (20), and the other end is fixedly connected to the spring cavity (22), the end of the T-shaped locking rod (20) away from the trigger rope (23) is clamped in the clamping groove (19), and the clamping groove (19) is opened in the I-shaped rod (5); A rubber sealing ring (6) is fixedly connected to the lower end of the protective cover body (1).

2. The explosion-proof valve protective cover with a sealed installation structure according to claim 1, characterized in that: A take-up wheel (28) is provided at the lower end of the bearing (29), a traction rope (27) is wound around the outside of the take-up wheel (28), one end of the traction rope (27) away from the take-up wheel (28) is fixedly connected to the inside of the clearance cavity (30), a stirring fan (24) is provided in the liquid storage cavity (8), the stirring fan (24) is fixedly sleeved on the outside of the cone rod (25), two groups of limit rods (26) are provided on the lower side of the stirring fan (24), and the opposing surfaces of the two groups of limit rods (26) are slidably connected to the inside of the cone rod (25).

3. The explosion-proof valve protective cover with a sealed installation structure according to claim 1, characterized in that: A liquid guide ring (7) is fixedly connected inside the protective cover body (1), and a plurality of groups of liquid guide cotton strips (9) are arranged outside the liquid guide ring (7). The liquid guide cotton strips (9) are fixedly connected inside the protective cover body (1).

4. The explosion-proof valve protection cover with a sealed installation structure according to claim 1, characterized in that: Two groups of T-shaped rods (34) are fixedly connected to one end of the plug (10) close to the protective cover body (1), and the T-shaped rods (34) are slidably connected to the connecting cavity (33). The connecting cavity (33) is opened in the protective cover body (1), and a fourth spring (11) is sleeved on the outside of the T-shaped rod (34). One end of the fourth spring (11) is fixedly connected to the connecting cavity (33), and the other end is fixedly connected to the T-shaped rod (34).

5. The explosion-proof valve protective cover with a sealed installation structure according to claim 1, characterized in that: A cavity (2) is provided in the conduit (3), a cooling liquid is provided in the cavity (2), and a sealing membrane (36) is fixedly connected to the upper end of the hose (12).

Images