Anti-explosion hot gas stop valve

Abstract

The utility model discloses an anti-explosion hot gas cut-off valve which comprises a valve body and a valve cover, the middle position of the top of the valve body is provided with the valve cover, the middle position in the valve body is provided with valve seats, a valve clack is arranged between the valve seats, the middle position of the top of the valve clack is provided with a screw rod, the top of the valve clack is provided with a connecting plate, and the connecting plate is connected with the valve cover. The threaded rods are connected with the connecting plates in an inserted mode through inserting holes, nuts are connected to the portions, on the tops of the connecting plates, of the threaded rods through threads, flanges are arranged on the outer side of the bottom of the valve deck, threaded holes are evenly formed in the flanges, shielding covers are arranged on the portions, on the outer sides of the threaded holes, of the flanges, and shielding plates are arranged on the tops of the shielding covers. The valve clack can be conveniently assembled and disassembled, the valve clack can be conveniently replaced, bolts on the flange can be shielded and protected during installation, and infection caused by external factors can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gas cut -off valve technical field, concretely is a kind of explosion -proof hot coal gas cut -off valve. BACKGROUND

[0002] Explosion -proof hot coal gas cut -off valve is a kind of safety equipment for coal chemical production device, usually is installed on gas pipeline, when pipeline or gas equipment appears gas leakage, alarm receives gas concentration signal, and signal is transmitted to motor, can make valve fast close cut -off gas source and enter self -locking state, prevent accident and reach the purpose of safety protection.

[0003] In prior art, general explosion -proof hot coal gas cut -off valve is not convenient to disassemble and replace valve clack when using, and when using, the bolt on valve cover flange can be infected by external factors, thereby affecting the sealing effect of valve cover. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of explosion -proof hot coal gas cut -off valve to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of explosion -proof hot coal gas cut -off valve, including valve body and valve cover, the middle position of the top of the valve body is equipped with valve cover, and the place where the valve cover is attached with valve body is equipped with sealing gasket, the inner bottom of the valve cover is equipped with recess, and the inner bottom of the valve cover is equipped with support plate, the middle position of the valve body is equipped with valve seat, and the valve seat is equipped with valve clack, the middle position of the top of the valve clack is equipped with screw rod, and the top of the valve clack is equipped with connecting plate, and the middle position of the connecting plate is equipped with insertion hole corresponding screw rod, the screw rod is inserted with connecting plate by insertion hole, and the screw rod on the top of the connecting plate is all connected with nut by screw thread, the outside of the flange of the bottom of the valve cover is equipped with flange, and the valve cover is connected with valve body by flange, the flange is evenly equipped with threaded hole, and the flange outside of the threaded hole is all equipped with shielding cover, the top of the shielding cover is all equipped with opening, and the top of the shielding cover is all equipped with shielding plate, so that valve seat and connecting plate are assembled or disassembled, it is convenient to replace, and when using, the threaded hole outside of flange connection can be protected and shielded, so that external factors can be infected, thereby affecting its use effect.

[0006] Preferably, the middle position of the valve cover is equipped with valve stem by bearing, and the bottom end of the valve stem is connected with the top of support plate by bearing seat, the valve stem in the recess of the valve cover is equipped as threaded section, and the valve stem is connected with threaded block by screw thread.

[0007] Preferably, the middle positions of the four sides of the bottom of the threaded block are provided with connecting rods, the corresponding support plates of the connecting rods are provided with moving grooves, and the bottoms of the connecting rods are connected with the connecting plates through the moving grooves, so that the threaded block moves on the valve rod, the threaded block drives the connecting plate to move through the connecting rod, and the connecting plate drives the valve clack to move, thereby facilitating opening and closing or closing.

[0008] Preferably, the valve clacks on the two sides of the screw rod are provided with plug plates one, and the top of the plug plate one is provided with a plug plate two which is opened in half through a rotating shaft.

[0009] Preferably, the connecting plates are provided with plug grooves corresponding to the positions of the plug plates one, the plug plates one are inserted with the connecting plates through the plug grooves, and the plug plate two on the top of the plug plate one is connected with the connecting plate through a bolt, so that the plug plate two is laid flat on the connecting plate through the rotating shaft, and the plug plate two and the connecting plate are fixed through the bolt.

[0010] Preferably, the flanges on one side of the shielding cover are provided with rotating rods, and the top ends of the rotating rods are provided with rotating blocks, one side of the rotating block is connected with the corresponding shielding plate, the shielding plate is rotated on the rotating rod through the rotating block, and the shielding is facilitated.

[0011] Preferably, the side, away from the rotating block, of the shielding plate and the shielding cover are provided with limiting grooves, and T-shaped rods are inserted into the corresponding limiting grooves on the shielding plate and the shielding cover, so that the T-shaped rods are inserted into the corresponding limiting grooves, the shielding plate is limited, and the displacement of the shielding plate is prevented.

[0012] Preferably, the middle position of the top of the valve cover is provided with an electric motor, and the output end of the electric motor is connected with the valve rod through a bearing and a shaft coupling.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the explosion-proof hot gas cut-off valve is provided with the screw rod, the plug plate one and the plug plate two on the top of the valve clack, the plug plate two on the top of the plug plate one is laid flat through the rotating shaft, the plug plate two is laid flat on the connecting plate, the plug plate two and the connecting plate are fixed through the bolt, the connection is more firm, the plug plate two and the connecting plate are convenient to assemble and disassemble, the plug plate two and the connecting plate are convenient to replace, the shielding cover on one side is rotated after installation, the rotating block drives the shielding plate on one side to rotate, the shielding plate is rotated to the top of the shielding cover, the inside bolt is shielded, external factors are prevented from invading the bolt, the bolt is prevented from loosening, and the effect of the utility model is affected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the sectional structure of the utility model;

[0015] Figure 2The utility model discloses a valve body, valve cover, valve clack main view cross section structure schematic diagram.

[0016] Figure 3 The utility model discloses a valve clack, connecting plate side view cross section structure schematic diagram.

[0017] Figure 4 The utility model discloses a Figure 2 The utility model discloses a

[0018] Figure 5 The utility model discloses a Figure 2 The utility model discloses a

[0019] In the drawing: 1, valve body;2, valve cover;3, flange;4, motor;5, valve stem;6, threaded block;7, connecting rod;8, shield cover;9, sealing gasket;10, support plate;11, valve seat;12, valve clack;13, connecting plate;14, rotary rod;15, insert plate one;16, insert plate two;17, rotary block;18, screw rod;19, baffle;20, T-shaped rod;21, threaded hole. Specific implementation

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides an embodiment: an explosion -proof hot coal gas cut -off valve, including valve body 1 and valve cover 2, the middle position of valve body 1 top is equipped with valve cover 2, and the sticking place of valve cover 2 and valve body 1 is equipped with sealing gasket 9, the inner bottom of valve cover 2 is equipped with recess, and the inner bottom of valve cover 2 is equipped with support plate 10, the middle position of valve body 1 is equipped with valve seat 11, and is equipped with valve clack 12 between valve seat 11, the middle position of valve clack 12 top is equipped with screw rod 18, and the top of valve clack 12 is equipped with connecting plate 13, and the position of connecting plate 13 middle corresponds the insertion hole of screw rod 18, and screw rod 18 is inserted with connecting plate 13 through the insertion hole, and the nut of screw rod 18 all is connected through screw on the top of connecting plate 13, and the valve clack 12 on the both sides of screw rod 18 all is equipped with insert plate one 15, and the top of insert plate one 15 all is equipped with half -open insert plate two 16 through pivot, the position of connecting plate 13 all is equipped with the slot of insert plate one 15, and insert plate one 15 all is inserted with connecting plate 13 through the slot, and the insert plate two 16 of insert plate one 15 top all is connected with connecting plate 13 through bolt;

[0022] In use, the screw rod 18 at the top of the valve disc 12, the first plug 15 and the second plug 16 are aligned with the corresponding plug hole and plug slot, and are initially plugged, then the nut is screwed on the screw rod 18 to preliminarily fix it, then the second plug 16 at the top of the first plug 15 is placed flat through the action of the rotating shaft, so that the second plug 16 is placed on the connecting plate 13, and the second plug 16 and the connecting plate 13 are fixed by using the bolt, which can make the connection more firm, and is convenient for assembling, disassembling and replacing;

[0023] The outer side of the bottom of the valve cover 2 is provided with a flange 3, and the valve cover 2 is connected with the valve body 1 through the flange 3. The flange 3 is uniformly provided with threaded holes 21, and the flange 3 outside the threaded holes 21 is provided with a shielding cover 8. The top of the shielding cover 8 is provided with an opening, and the top of the shielding cover 8 is provided with a shielding plate 19. The flange 3 on one side of the shielding cover 8 is provided with a rotating rod 14, and the top end of the rotating rod 14 is provided with a rotating block 17. One side of the rotating block 17 is connected with the corresponding shielding plate 19.

[0024] In use, the valve cover 2 can be fixed on the valve body 1 through the flange 3. When the bolts on the flange 3 are fixed, the rotating block 17 on one side of the shielding cover 8 is rotated, so that the shielding plate 19 on one side is driven to rotate, and the shielding plate 19 is rotated to the top of the shielding cover 8. The bolts on the inside can be shielded to prevent external factors from affecting the bolts, so that the bolts are not loose and affect the effect.

[0025] The valve rod 5 is arranged in the valve cover 2 at the middle position through the bearing, and the bottom end of the valve rod 5 is connected with the top of the supporting plate 10 through the bearing seat. The valve rod 5 in the groove of the valve cover 2 is provided as a threaded section, and the threaded block 6 is connected with the valve rod 5 through the thread. The middle position of the bottom of the threaded block 6 is provided with a connecting rod 7, and the corresponding supporting plate 10 of the connecting rod 7 is provided with a moving groove. The bottom of the connecting rod 7 is connected with the connecting plate 13 through the moving groove. The middle position of the top of the valve cover 2 is provided with an electric motor 4, and the output end of the electric motor 4 is connected with the valve rod 5 through the bearing and the shaft coupling.

[0026] In use, the electric motor 4 is started to drive the valve rod 5 to rotate, so that the valve rod 5 drives the threaded block 6 to move up and down through the threaded section, so that the threaded block 6 drives the connecting rod 7 to move together, so that the connecting rod 7 drives the connecting plate 13 to move, so that the connecting plate 13 drives the valve disc 12 at the bottom to move up and down, so that the valve can be opened and closed, which is convenient for opening and closing the valve.

[0027] The side of the shielding plate 19 away from the rotating block 17 and the shielding cover 8 is provided with a limiting groove, and the corresponding limiting grooves of the shielding plate 19 and the shielding cover 8 are inserted with a T-shaped rod 20.

[0028] In use, the T-shaped rod 20 can be placed in the limiting groove to limit the shielding plate 19, which can prevent the shielding plate 19 from moving.

[0029] In use, the application, by aligning the screw rod 18, the first insertion plate 15 and the second insertion plate 16 on the top of the valve disc 12 with the corresponding insertion hole and insertion slot, the preliminary insertion is carried out, then the nut is screwed on the screw rod 18, the preliminary positioning and fixing are carried out, then the second insertion plate 16 on the top of the first insertion plate 15 is placed flat by the action of the rotating shaft, the second insertion plate 16 is placed on the connecting plate 13, and the first insertion plate 15 and the connecting plate 13 are fixed by using the bolt, so that the connection is more firm, and the assembling and disassembling are facilitated, the replacement is facilitated, then the valve cover 2 is fixed on the valve body 1 through the flange 3, when the bolts on the flange 3 are all fixed, the rotating block 17 on one side of the shielding cover 8 is rotated, the shielding plate 19 on one side is driven to rotate, the shielding plate 19 is rotated to the top of the shielding cover 8, the bolts on the inside are shielded, the bolts are prevented from being infected by external factors, so that the bolts are prevented from being loosened and affecting the effect, then the T-shaped rod 20 is placed in the limiting groove, the shielding plate 19 is limited, and the shielding plate 19 is prevented from being displaced, when being used, the motor 4 is started, the valve rod 5 is driven to rotate, the threaded block 6 is driven to move up and down through the threaded section, the connecting rod 7 is driven to move together by the threaded block 6, the connecting plate 13 is driven to move by the connecting rod 7, the valve disc 12 on the bottom is driven to move up and down by the connecting plate 13, the opening and closing are carried out, and the opening and closing of the valve are facilitated.

[0030] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. An explosion-proof hot gas shut-off valve characterized by: The utility model provides a valve, including valve body (1) and valve cover (2), the middle position of top of valve body (1) is equipped with valve cover (2), and the place where valve cover (2) is attached with valve body (1) is equipped with sealing gasket (9), the inner bottom of valve cover (2) is equipped with recess, and the inner bottom of valve cover (2) is equipped with support plate (10), the middle position of inside valve body (1) is equipped with valve seat (11), and the valve seat (11) between is equipped with valve clack (12), the middle position of top of valve clack (12) is equipped with screw rod (18), and the top of valve clack (12) is equipped with connecting plate (13), and the middle position of connecting plate (13) is equipped with the insertion hole corresponding screw rod (18), screw rod (18) is inserted with connecting plate (13) through insertion hole, and the top of connecting plate (13) all is connected with nut through screw thread on screw rod (18), the outside of bottom of valve cover (2) is equipped with flange (3), and valve cover (2) is connected with valve body (1) through flange (3), the flange (3) is evenly equipped with threaded hole (21), and the flange (3) outside the threaded hole (21) all is equipped with shield cover (8), the top of shield cover (8) all is equipped with opening, and the top of shield cover (8) all is equipped with shield plate (19).

2. A flameproof hot gas shut-off valve according to claim 1, characterised in that: The middle position in valve cover (2) is equipped with valve stem (5) through bearing, and the bottom end of valve stem (5) is connected with the top of support plate (10) through bearing seat, the valve stem (5) in recess of valve cover (2) is equipped as threaded section, and the threaded block (6) is connected on valve stem (5) through screw thread.

3. A flameproof hot gas shut-off valve according to claim 2, characterised in that: The middle position of bottom all around threaded block (6) is equipped with connecting rod (7), and the corresponding support plate (10) on connecting rod (7) is all equipped with moving groove, and the bottom of connecting rod (7) is all connected with connecting plate (13) through moving groove.

4. A flameproof hot gas shut-off valve according to claim 1, characterised in that: The valve clack (12) on both sides of screw rod (18) all is equipped with insert plate one (15), and the top of insert plate one (15) is all equipped with half-opened insert plate two (16) through rotating shaft.

5. A flameproof hot gas shut-off valve according to claim 1, characterised in that: The position of connecting plate (13) corresponding insert plate one (15) all is equipped with insertion groove, and the insert plate one (15) is all inserted with connecting plate (13) through insertion groove, and the insert plate two (16) on the top of insert plate one (15) is all connected with connecting plate (13) through bolt.

6. An explosion-proof hot gas shut-off valve according to claim 1, characterized in that: The flange (3) on one side of shield cover (8) all is equipped with rotating rod (14), and the top end of rotating rod (14) all is equipped with rotating block (17), one side of rotating block (17) all is connected with corresponding shield plate (19).

7. A flameproof hot gas shut-off valve according to claim 1, characterised in that: The side of shield plate (19) away from rotating block (17) and shield cover (8) all is equipped with limiting groove, and the limiting groove in shield plate (19) and shield cover (8) corresponding all is inserted with T-shaped rod (20).

8. A flameproof hot gas shut-off valve according to claim 1, characterised in that: The middle position of top of valve cover (2) is equipped with motor (4), and the output end of motor (4) is connected with valve stem (5) through bearing and shaft coupling.

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