CN211371379U - Fireproof check valve with umbrella-shaped fireproof temperature sensing device - Google Patents
Fireproof check valve with umbrella-shaped fireproof temperature sensing device Download PDFInfo
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- CN211371379U CN211371379U CN201921909845.7U CN201921909845U CN211371379U CN 211371379 U CN211371379 U CN 211371379U CN 201921909845 U CN201921909845 U CN 201921909845U CN 211371379 U CN211371379 U CN 211371379U
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Abstract
The utility model discloses a fireproof check valve with an umbrella-shaped fireproof temperature sensing device, which comprises a metal cylinder, a check door plate and the umbrella-shaped fireproof temperature sensing device, wherein the umbrella-shaped fireproof temperature sensing device comprises a guide post, a positioning shaft, a spring and a sliding block, the sliding block is symmetrically and rotatably connected with a first connecting rod, the two end parts of the positioning shaft are symmetrically and rotatably connected with a second connecting rod, and one end of the first connecting rod is hinged with the middle part of the second connecting rod; and be equipped with first fuse link and the second fuse link of bonding mutually between guide post upper end and sliding block, the upper end of first fuse link is connected with the upper end of guide post, and the lower extreme of second fuse link is connected with the sliding block. The utility model discloses in utilize the linkage design of sliding block, first connecting rod and second connecting rod, rotate along the location axle under the drive of sliding block and first connecting rod as the second connecting rod, initial state is down the rotation upwards kept away from the check door board to the rotation downwards and is pressed the knot on the check door board, makes the valve closely closed realization fire prevention isolation function.
Description
Technical Field
The utility model relates to a check valve especially relates to a take fire prevention check valve of umbrella-type fire prevention temperature sensing device.
Background
The check valve used for the direct drainage of the public flue or the outer wall has higher requirements on the opening effect, the fireproof performance, the sealing effect and the like of the check door plate, but the existing check valve has many defects, for example, the check door plate rotates around the connecting shaft, and the contact surface of the connecting shaft is large, so that oil stains are easily adhered to the check door plate, and the check door plate is often clamped in the rotating process in the using process, so that only a part of the check door plate can be opened, and the check door plate cannot be completely opened or can not be completely returned, thereby influencing the ventilation effect and the effect of preventing smoke return within the same time; in addition, although the fireproof device is arranged, the structure is complex, the manufacturing cost is high, the failure is easy, and the fireproof performance is poor; meanwhile, the phenomenon of odor tainting of the flue sometimes occurs, and the indoor environment is full of peculiar smell, which seriously affects the health of family members.
Therefore, it is desired to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a reliable performance is difficult for the fire prevention check valve of taking umbrella shape fire prevention temperature sensing device that became invalid.
The technical scheme is as follows: in order to achieve the above purpose, the utility model discloses a take fire prevention check valve of umbrella-type fire prevention temperature sensing device, including metal cylinder, the symmetry lie in the metal cylinder can be to the check door plant that opens and lie in the metal cylinder and lie in the umbrella-type fire prevention temperature sensing device of the symmetry axis top of two check door plants, umbrella-type fire prevention temperature sensing device includes that the upper end is fixed with the valve body, the lower extreme stretches into the valve body and lies in the guide post of the symmetry axis top of two check door plants, wear to establish at the guide post lower extreme and the parallel location axle of the symmetry axis of check door plant, and the spring and the sliding block that overlap on the guide post in proper order, symmetry rotatable coupling has first connecting rod on the sliding block, and the both ends symmetry rotatable coupling of location axle has the second connecting rod, and the one end of first connecting rod is articulated with the middle part; a first fuse link and a second fuse link which are bonded are arranged between the upper end of the guide post and the sliding block, the upper end of the first fuse link is connected with the upper end of the guide post, and the lower end of the second fuse link is connected with the sliding block; when the external temperature reaches a certain temperature, the first fuse link and the second fuse link which are bonded with each other are separated, the sliding block drives the second connecting rod to rotate around the positioning shaft to the direction of the non-return door plate through the first connecting rod in the process of sliding down along the guide post, and the sliding block is pressed and buckled on the non-return door plate, so that the valve is closed to realize the fireproof isolation function. The utility model discloses in utilize the linkage design of sliding block, first connecting rod and second connecting rod, rotate along the location axle under the drive of sliding block and first connecting rod as the second connecting rod, initial state is down the rotation upwards kept away from the check door board to the rotation downwards and is pressed the knot on the check door board, makes the valve closely closed realization fire prevention isolation function.
The upper end of the guide column is connected with the valve body through the connecting support, the connecting support is a bending beam stretching across the opening of the valve body, and the bending beam comprises a first connecting portion fixed on one side of the valve body, a second connecting portion used for fixing the guide column and the first fuse link and parallel to the symmetry axis, a third connecting portion fixed on the other side of the valve body and a folding edge located on the side edge in the length direction and used for reinforcing.
Preferably, the second connecting rod has two spaced apart protrusions on the side facing the check door panel. The utility model discloses utilize two convex parts formation as the 2 suppression power on the non return door plant of interval setting on the second connecting rod, make the non return door plant closely closed more.
Furthermore, the upper end of guide post is connected with the setting element that is used for restricting the guide post motion, and this setting element is the L template of bending the constitution by riser and diaphragm, sets up the quad slit that can supply the guide post to wear to establish on the diaphragm, and the riser supports with linking bridge and leans on.
Furthermore, a plurality of notches are uniformly distributed on the guide column, and a check plate which can be clamped with the notches to prevent the sliding block from upwards retracting is arranged on the sliding block. The utility model discloses the structural design of notch looks block on the check plate that the utilization can follow the sliding block that the guide post removed and the guide post prevents that the sliding block from upwards returning back, realizes the spacing card of second connecting rod function of dying, and the impact force drive second connecting rod of avoiding the flue to produce rotates to open the non return door plant.
Preferably, the lower end of the second fuse link is provided with a hole, and the sliding block is provided with a connecting block which can be inserted into the hole.
Furthermore, a metal non-return door frame is obliquely arranged on the inner wall or the end part of the metal cylinder, and the two non-return door plates are symmetrically arranged on the metal non-return door frame.
Further, the metal barrel comprises an upper barrel body and a lower barrel body which are sleeved with each other, a lug is arranged on the upper barrel body, an L-shaped groove is formed in the corresponding position of the lower barrel body, the lower barrel body is inserted into the upper barrel body, the lug is inserted into a longitudinal groove of the L-shaped groove, the upper barrel body or the lower barrel body is rotated, and the lug is clamped in a transverse groove of the L-shaped groove and locked.
Furthermore, one end of the lower cylinder body is provided with a metal mounting seat, and the metal mounting seat and the lower cylinder body are of a welding forming structure or an integral forming structure.
Preferably, the metal cylinder is of an integrally formed structure, a metal mounting seat is arranged at one end of the metal cylinder, and the metal mounting seat and the metal cylinder are of a welded structure or an integrally formed structure.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model utilizes the linkage design of the sliding block, the first connecting rod and the second connecting rod, when the second connecting rod rotates along the positioning shaft under the driving of the sliding block and the first connecting rod, the second connecting rod rotates upwards to be away from the check door plate to rotate downwards to be pressed and buckled on the check door plate under the initial state, so that the valve is closed tightly to realize the fireproof isolation function;
(2) the check door plate of the utility model is obliquely arranged in the metal cylinder, and the inclined plane gravity generated by the double-open check door plate is beneficial to closing the valve, so as to ensure that the two check door plates are in a closed state when the check valve is not used;
(3) the metal barrel of the utility model is a split type barrel and is formed by sleeving the upper barrel and the lower barrel, when the check valve needs to be cleaned in the use process, only the upper barrel needs to be disassembled without disassembling the lower barrel fixed with the flue, the difficulty of cleaning the check valve is reduced, the split type metal barrel is convenient to install and clean, and the barrel lifting rejection rate in the production process is reduced;
(4) the utility model prevents the sliding block from retracting upwards by utilizing the structural design that the check plate on the sliding block which can move along the guide post is clamped with the notch on the guide post, thereby realizing the limiting and locking function of the second connecting rod, avoiding the impact force generated by the flue from driving the second connecting rod to rotate, and opening the check door plate;
(5) the utility model discloses utilize two convex parts formation as the 2 suppression power on the non return door plant of interval setting on the second connecting rod, make the non return door plant closely closed more.
Drawings
Fig. 1 is a first schematic structural view of a fire check valve in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a fire check valve in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a fireproof temperature-sensing device in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a metal cylinder in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of the fire check valve in embodiment 1 of the present invention in a closed state;
fig. 6 is a schematic structural view of the fire-proof temperature sensing device in embodiment 1 of the present invention in a closed state;
fig. 7 is an installation schematic view of a check door panel in embodiment 1 of the present invention;
fig. 8 is a schematic structural view of a check door panel in embodiment 1 of the present invention;
fig. 9 is a plan view of a check door panel according to embodiment 1 of the present invention;
fig. 10 is a schematic structural view of a metal cylinder in embodiment 2 of the present invention;
fig. 11 is a schematic structural view of a fire check valve in embodiment 3 of the present invention;
fig. 12 is a schematic structural view of a metal cylinder in embodiment 3 of the present invention;
fig. 13 is a schematic connection diagram of the reducing sleeve in embodiment 3 of the present invention;
fig. 14 is a schematic structural view of the fire check valve in the closed state according to embodiment 3 of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the utility model discloses a take fire prevention check valve of umbrella-type fire prevention temperature sensing device, including metal barrel 1, non return door plant 2, umbrella-type fire prevention temperature sensing device, metal non return door frame 14 and metal mount pad 15.
As shown in fig. 4, the metal cylinder 1 includes an upper cylinder 101 and a lower cylinder 102 which are sleeved with each other, a protrusion 103 is disposed on the upper cylinder 101, an L-shaped groove 104 is disposed at a corresponding position on the lower cylinder 102, the lower cylinder 102 is inserted into the upper cylinder 101, the protrusion 103 is inserted into a longitudinal groove of the L-shaped groove 104, the upper cylinder 101 or the lower cylinder 102 is rotated, and the protrusion 103 is locked in a transverse groove of the L-shaped groove 104. One end of the lower cylinder 102 is provided with a metal mounting seat 15, the metal mounting seat 15 and the lower cylinder 102 are of a welded structure or an integrated structure, and the metal mounting seat 15 is provided with a connecting U-shaped groove or a waist-shaped hole so as to fixedly mount the check valve by additionally installing an expansion screw or fixedly mount the check valve by other modes. Wherein, the structure that barrel and lower barrel were established each other is adopted to metal barrel 1, has avoided the barrel because of the problem that the barrel draws high disability rate in the product production process that many times stretch forming technology caused, simultaneously in the use when needs wash the check valve, only need dismantle the barrel can, and need not to dismantle with the fixed lower barrel of flue and open, reduce the degree of difficulty of wasing the check valve, split type easy to assemble and convenient washing.
As shown in fig. 7, 8 and 9, the inner wall of the upper cylinder 101 of the metal cylinder 1 is obliquely provided with a metal check door frame 14, and the two check door panels 2 are symmetrically arranged on the metal check door frame 14. The metal non-return door frame 14 comprises a round frame 1401 fixed on the inner wall of the metal cylinder and a central door frame 1402 located at the symmetrical axis of the round frame, the sides of the round frame 1401 and the central door frame 1402 are cutting edge-shaped sides, and the cutting edge-shaped sides and the cutting edge-shaped of the non-return door plate are effectively sealed through a D-shaped silica gel sealing ring 203. The check door panel 2 includes an upper door panel 201 and a lower door panel 202. The peripheries of the upper door panel 201 and the lower door panel 202 are punched into a blade shape, and the upper door panel 201 and the lower door panel 202 are fixedly connected with each other by rivets or bolts. And D-shaped silica gel sealing rings 203 for sealing the valve body opening are buckled and pressed on the peripheries of the upper door panel 201 and the lower door panel 202. The upper door panel 201 and the lower door panel 202 are both D-shaped metal plates, and the D-shaped metal plates include a straight edge and a circular arc edge. The two end parts of the straight edge of the upper door panel 201 are respectively bent around themselves to form a central door shaft 204, and the upper door panel 201 drives the lower door panel to rotate around the central door shaft 204 formed by bending itself. Hinges 16 are respectively arranged on the valve body near the two ends of the central door shaft 204, fixing buckles 17 for fixing the central door shaft 204 are arranged on the hinges 16, and the upper door plate 201 is connected with the hinges 16 and the fixing buckles 17 on the valve body through the central door shaft 204. This non return door plant 2 realizes nimble rotation through the central door-hinge that self bent the formation, reduces greasy dirt or dust in the use to the influence of rotation flexibility ratio, and design benefit can open and close completely, improves ventilation effect. The plane of the non-return door plate 2 and the vertical direction form an included angle of 25-40 degrees to ensure that when the fireproof check valve and the umbrella-shaped fireproof temperature sensing device are not used, the two non-return door plates lean against the metal non-return door frame 14 under the action of gravity, and therefore the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is in a closed state.
The umbrella-shaped fireproof temperature sensing device is positioned in the metal cylinder body 1 and is positioned above the symmetry axis of the two check door plates 2. The position of the umbrella-shaped fireproof temperature sensing device is centered, and the movement of the check door plate 2 is not influenced. Meanwhile, the non-return door plate 2 in an open state can be completely accommodated by the barrel height of the metal barrel body 1, the fireproof temperature sensing device is protected from being damaged, the fireproof reliability of the non-return door plate is enhanced, meanwhile, the situation that strong wind and foreign matters at the inner wall or the outer wall of a flue block the opening of the metal non-return door plate is avoided, and the reliability of the fireproof check valve with the umbrella-shaped fireproof temperature sensing device and the fireproof temperature sensing device is further guaranteed.
As shown in fig. 3, the umbrella-shaped fireproof temperature sensing device includes a guide post 3, a positioning shaft 4, a spring 5, a sliding block 6, a first link 7, a second link 8, a first fuse link 9, a second fuse link 10, a connecting bracket 11, a positioning member 12, and a check plate 13.
The connecting bracket 11 is a bent beam crossing the valve body opening, and the bent beam includes a first connecting portion 1101 fixed to one side of the metal mounting seat 15, a second connecting portion 1102 parallel to the symmetry axis and used for fixing the guide post 3 and the first fuse link 9, a third connecting portion 1103 fixed to the other side of the metal mounting seat 15, and a flange 1104 located on the side edge in the length direction and used for reinforcement.
The upper end of the guide column 3 is fixed with the second connecting part 1102 of the connecting support 11 through a bolt, and the lower end of the guide column 3 extends into the metal cylinder 1 and is positioned above the symmetry axis of the two check door plates. The positioning shaft 4 penetrates through the lower end of the guide column 3 and is fixed through a bolt 18, and the positioning shaft 4 is parallel to the symmetry axis of the check door plate. The upper end of guide post 3 is connected with and is used for restricting 3 pivoted setting element 12 of guide post, and this setting element 12 is one and is bent the L template that constitutes by riser and diaphragm, offers the quad slit that can supply guide post 3 to wear to establish on the diaphragm, and the riser supports with linking bridge 11 and leans on.
Two first connecting rods 7 are symmetrically and rotatably connected to the sliding block 6, two second connecting rods 8 are symmetrically and rotatably connected to two end portions of the positioning shaft 4, one end of each first connecting rod 7 is hinged to the middle of the corresponding second connecting rod 8, and two convex portions 801 are arranged on the side, facing the non-return door panel 2, of each second connecting rod 8 at a certain distance. The utility model discloses utilize two convex parts formation as the 2 suppression power on the non return door plant of interval setting on the second connecting rod, make the non return door plant closely closed more. The upper end of first fuse link 9 is fixed mutually with the second connecting portion 1102 of linking bridge 11 and the upper end of guide post 3, the external screw thread that is used for connecting is offered to the upper end outer wall of guide post and is formed the double-screw bolt, offer the through-hole that is used for wearing to establish the double-screw bolt on the second connecting portion 1102, the connection piece that can laminate second connecting portion 1102 is bent to the upper end of first fuse link 9, offer the through-hole that is used for wearing to establish the double-screw bolt on this connection piece equally, the double-screw bolt passes second connecting portion 1102 and the connection piece of first fuse link 9 in proper order, and through gasket and nut fixed connection. The lower end of the first fuse link 9 is bonded with the upper end of the second fuse link 10 through a soldering tin with a melting point of 150 ℃, the lower end of the second fuse link 10 is connected with the sliding block 6, a hole is formed in the lower end of the second fuse link 10, the sliding block 6 extends out of a connecting part 601, and locking is achieved in the inserting hole of the connecting part 601.
As shown in fig. 5 and 6, the original length of the spring 5 is long, and the slider 6 presses the spring 5 in a normal state so that the spring 5 is in a compressed state. When the external temperature reaches the fusing temperature, the first fuse link 9 and the second fuse link 10 which are bonded with each other are separated, the second connecting rod 8 rotates along the direction of the positioning axial non-return door plate under the linkage action of the sliding block 6 and the first connecting rod 9, and the second connecting rod 8 is firmly clamped on the opening non-return door plate, so that the opening non-return door plate is closed to realize the fireproof isolation function. The fuse link uses copper sheets or steel sheets, the standard melting point is controlled by temperature, the national fire department approval standard is met, the fuse link is disconnected when the action temperature reaches the fusing temperature, the temperature control is accurate, and the reaction is sensitive. Meanwhile, when the check plate 13 moves downwards along with the sliding block 6, when the check plate 13 is clamped with the notch 301, the phenomenon that the sliding block 6 retracts and moves upwards under the elastic failure state of the spring 2 under the high-temperature environment can be effectively prevented, and the characteristics of the fireproof temperature sensing device are effectively guaranteed.
The working process is as follows: firstly, a fireproof check valve with an umbrella-shaped fireproof temperature sensing device is arranged on a wall surface, and the installation position of the fireproof check valve is adjusted. When the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is opened, the two check door plates are completely opened to discharge waste gas; when the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is closed, the check door plate obliquely falls back on the metal check door frame by means of self gravity; when the temperature in the flue is too high, the two bonded fuse links are separated, the sliding block drives the second connecting rod to rotate around the positioning shaft to the direction of the non-return door plate through the first connecting rod in the process of sliding down along the guide post, the sliding block is pressed and buckled on the non-return door plate and locked by the non-return plate, and the non-return door plate is firmly closed to avoid the spread of fire.
The product has the following application:
can be used in a public flue: the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is used for discharging oil fume and preventing smoke from returning in a common flue of a household kitchen, a fireproof system, a kitchen range hood exhausts air, the common flue is fireproof and is normally closed at ordinary times, peculiar smell brought in the common flue is prevented, smell fleeing is avoided, and the health of family people is cared; when the range hood works, the door plate of the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is opened greatly, the fireproof check valve is in an open state, has a large diameter, discharges smoke smoothly and is unobstructed, and when the air temperature reaches the fusing temperature, the fuse link of the fireproof check valve with the umbrella-shaped fireproof temperature sensing device acts to automatically close, so that the invasion of external fire is avoided.
Can also be used on the outer wall: the fireproof check valve with the umbrella-shaped fireproof temperature sensing device is used for directly discharging the outer wall, and can effectively prevent small animals, birds, sand and dust and the like from entering the range hood.
Example 2
As shown in fig. 10, the structure of embodiment 2 is the same as that of embodiment 1 except that: the metal cylinder 1 is of an integrally formed structure, a metal mounting seat 15 is arranged at one end of the metal cylinder 1, and the metal mounting seat 15 and the metal cylinder 1 are of a welded structure or an integrally formed structure.
Example 3
As shown in fig. 11, 12, 13 and 14, the structure of embodiment 3 is the same as that of embodiment 1, except that: the end of the upper cylinder 101 of the metal cylinder 1 is obliquely provided with a metal non-return door frame 14, and the two non-return door panels 2 are symmetrically arranged on the metal non-return door frame 14. When in use, the upper cylinder 101 of the metal cylinder 1 is sleeved with the reducing sleeve 19 for connecting with a wall body. Furthermore, the first connection portion 1101 and the third connection plate 1103 of the connection bracket 6 are both fixedly connected to the metal mounting seat 15.
Claims (10)
1. The utility model provides a take fire prevention check valve of umbrella-type fire prevention temperature sensing device which characterized in that: the fire-proof temperature sensing device comprises a metal cylinder (1), check door plates (2) symmetrically positioned in the metal cylinder and capable of being split, and an umbrella-shaped fire-proof temperature sensing device positioned in the metal cylinder and above the symmetry axes of the two check door plates, wherein the umbrella-shaped fire-proof temperature sensing device comprises a guide column (3) of which the upper end is fixed with the valve body and the lower end extends into the valve body and is positioned above the symmetry axes of the two check door plates, a positioning shaft (4) which penetrates through the lower end of the guide column and is parallel to the symmetry axes of the check door plates, and a spring (5) and a sliding block (6) which are sequentially sleeved on the guide column (3), a first connecting rod (7) is symmetrically and rotatably connected onto the sliding block (6), two end parts of the positioning shaft (4) are symmetrically and rotatably connected with a second connecting rod (8), and one end of the first connecting rod (7; a first fuse link (9) and a second fuse link (10) which are bonded are arranged between the upper end of the guide post (3) and the sliding block (6), the upper end of the first fuse link (9) is connected with the upper end of the guide post (3), and the lower end of the second fuse link (10) is connected with the sliding block (6); when the external temperature reaches a certain temperature, the first fuse link (9) and the second fuse link (10) which are bonded with each other are separated, and the sliding block drives the second connecting rod to rotate around the positioning shaft to the direction of the non-return door plate through the first connecting rod in the process of sliding down along the guide post under the action of the elastic force of the spring and is pressed and buckled on the non-return door plate, so that the valve is closed to realize the fireproof isolation function.
2. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the upper end of guide post (3) is connected with the valve body through linking bridge (11), and this linking bridge (11) are one and span the roof beam of bending of valve body mouth, should bend the roof beam including with fixed first connecting portion (1101) of valve body one side, be used for fixed guide post (3) and first fuse link (9) and be on a parallel with the second connecting portion (1102) of symmetry axis, with fixed third connecting portion (1103) of valve body opposite side and be located length direction side hem (1104) that are used for the reinforcing.
3. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the side of the second connecting rod (8) facing the check door plate is provided with two convex parts which are spaced at a certain distance.
4. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the upper end of guide post (3) is connected with setting element (12) that are used for restricting guide post (3) motion, and this setting element (12) is one by riser and diaphragm bend the L template that constitutes, sets up the quad slit that can supply guide post (3) to wear to establish on the diaphragm, and the riser supports with linking bridge (11) and leans on.
5. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the last equipartition of guide post (3) has a plurality of notch (301), be equipped with on sliding block (6) and be used for preventing sliding block (6) upwards retraction's check plate (13) with notch (301) looks block.
6. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the lower end of the second fuse link (10) is provided with a hole, and the sliding block (6) is provided with a connecting part (601) which can be inserted into the hole.
7. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the metal cylinder body (1) inner wall or tip slant is provided with metal non return door frame (14), and two non return door plant (2) symmetry set up on this metal non return door frame (14).
8. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the metal barrel (1) comprises an upper barrel (101) and a lower barrel (102) which are sleeved with each other, a bump (103) is arranged on the upper barrel (101), an L-shaped groove (104) is arranged in a corresponding position on the lower barrel (102), the lower barrel (102) is inserted into the upper barrel (101), the bump (103) is inserted into a longitudinal groove of the L-shaped groove (104), the upper barrel (101) or the lower barrel (102) rotates, and the bump (103) is clamped in a transverse groove of the L-shaped groove (104) and is locked.
9. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 8, wherein: one end of the lower cylinder (102) is provided with a metal mounting seat (15), and the metal mounting seat (15) and the lower cylinder (102) are of a welding forming structure or an integral forming structure.
10. The fire resistant check valve with umbrella shaped fire resistant temperature sensing device of claim 1, wherein: the metal cylinder body (1) is of an integrally formed structure, a metal mounting seat (15) is arranged at one end of the metal cylinder body (1), and the metal mounting seat (15) and the metal cylinder body (1) are of a welded structure or an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921909845.7U CN211371379U (en) | 2019-11-07 | 2019-11-07 | Fireproof check valve with umbrella-shaped fireproof temperature sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921909845.7U CN211371379U (en) | 2019-11-07 | 2019-11-07 | Fireproof check valve with umbrella-shaped fireproof temperature sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN211371379U true CN211371379U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921909845.7U Active CN211371379U (en) | 2019-11-07 | 2019-11-07 | Fireproof check valve with umbrella-shaped fireproof temperature sensing device |
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| CN (1) | CN211371379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725975A (en) * | 2019-11-07 | 2020-01-24 | 南京吉宅伴侣智能家居有限公司 | Fireproof check valve with umbrella-shaped fireproof temperature sensing device |
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2019
- 2019-11-07 CN CN201921909845.7U patent/CN211371379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725975A (en) * | 2019-11-07 | 2020-01-24 | 南京吉宅伴侣智能家居有限公司 | Fireproof check valve with umbrella-shaped fireproof temperature sensing device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |