Anti-falling valve cover assembly

Abstract

The utility model relates to the technical field of valves, and discloses an anti-falling valve cover assembly which comprises a valve body and a gland assembly, the top of the valve body is fixedly connected with a valve cover body, the top of the valve cover body is fixedly connected with the gland assembly, one side of the valve body is fixedly connected with a control faucet, and the other side of the valve body is fixedly connected with a valve rod. The gland assembly comprises a packing gland, inverted buckles are fixedly connected to the bottoms of the two sides of the packing gland, a limiting ring is fixedly connected to the outer side of the top of the packing gland, sealing packing is movably connected to the bottom of the packing gland, and a sealing ring is movably connected to the middle of the top of the packing gland. The top of the sealing ring is movably connected with a gland shell; the inverted buckle of the packing gland corresponds to the sliding groove and is inserted into the cover body until the top of the cover body is attached to the limiting ring, the inverted buckle is matched with the buckle groove by rotating by 90 degrees, the packing gland can be quickly mounted and dismounted, and packing can be conveniently replaced and maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field more particularly to a kind of anti-falling bonnet assembly. BACKGROUND

[0002] Bonnet assembly is the important component of valve, mainly by bonnet body, packing gland and flange etc. component is formed, and bonnet body is the main part of bonnet, usually cast iron, cast steel or stainless steel etc. Material is made, and it is fixed tightly with valve body by bolt etc. Connection mode, ensure the sealing performance of valve, packing gland is located at the top of bonnet, for packing, and flange is the part of bonnet and pipeline or other equipment connection;Bonnet assembly is widely used in various fluid control systems, such as industrial pipeline, chemical equipment, oil and gas exploitation etc. occasion, and whether its performance is stable is directly related to the operation safety of entire system, with the continuous development of industrial technology, the structure of bonnet assembly is also constantly optimized and innovated.

[0003] Valve packing is installed between valve stem and bonnet sealing material, its function is to prevent medium from leaking from the gap between valve stem and bonnet, so valve packing needs to be replaced and maintained after a period of use, so it requires packing gland to be opened easily;Secondly, when packing gland loosens, it may finally lead to falling, so that medium leaks, so packing gland needs to be anti-falling. SUMMARY

[0004] In order to overcome the above-mentioned defects of prior art, the utility model provides a kind of anti-falling bonnet assembly to solve the problems in the above background art.

[0005] The utility model provides the following technical scheme: a kind of anti-falling bonnet assembly, including valve body and gland assembly, the top of the valve body is fixedly connected with bonnet body, the top of the bonnet body is fixedly connected with gland assembly, one side of the valve body is fixedly connected with control tap, one side of the control tap is fixedly connected with connecting pipeline, the gland assembly includes packing gland, the bottom of the two sides of the packing gland is fixedly connected with reverse buckle, the top outer side of the packing gland is fixedly connected with limit ring, the bottom of the packing gland is movably connected with sealing packing, the top middle part of the packing gland is movably connected with sealing ring, the top of the sealing ring is movably connected with gland shell.

[0006] Further, the valve body includes valve body, the top of the valve body is provided with fixed slot, the top middle part of the fixed slot is movably connected with valve rod, the bottom of the valve rod is fixedly connected with sphere, the structure of the sphere is spherical, and the middle part is provided with through channel.

[0007] Further, the valve cover body comprises a cover body, the bottom of the cover body is fixedly connected with a connecting flange, the top outer side of the connecting flange is fixedly connected with fixing bolts, and the fixing bolts are uniformly distributed.

[0008] Further, the front and back surfaces of the inner top of the cover body are each provided with a sliding groove, the length and width of the sliding groove are the same as the length and width of the reverse buckle, the two sides of the inner top of the cover body are provided with buckle grooves, the buckle grooves are matched with the reverse buckles, and the top outer side of the cover body is threadedly connected with a gland shell.

[0009] Further, the control faucet comprises a control pipeline, the top middle portion of the control pipeline is fixedly connected with a connecting head, the outer side of the connecting head is movably connected with a handle, the inner middle portion of the connecting head is movably connected with a control rod, the top end of the control rod is movably connected with the handle, and the bottom of the control rod is fixedly connected with a valve core.

[0010] Further, the connecting pipeline comprises a pipeline body, one side of the pipeline body is fixedly connected with a nut pipeline, and one side of the nut pipeline is fixedly connected with a threaded pipeline.

[0011] Further, the reverse buckles at the two bottom sides of the packing gland are mirror-symmetrically distributed, and the length of a single reverse buckle accounts for one fourth of the outer circle of the bottom of the packing gland.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1. The utility model discloses a packing gland, which is characterized by comprising a cover body, a packing gland, a gland shell and a control faucet.

[0014] 2. The utility model discloses a reverse buckle, which is characterized by comprising a reverse buckle and a buckle groove. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic diagram of the utility model.

[0016] Figure 2 It is a cross section structure schematic diagram of the valve cover body and the gland assembly of the utility model.

[0017] Figure 3The utility model discloses a valve body's cross section structure schematic drawing.

[0018] Figure 4 The utility model discloses a control faucet's cross section structure schematic drawing.

[0019] The sign is: 1, valve body, 101, valve body, 102, fixed groove, 103, valve stem, 104, ball, 2, valve cover body, 201, cover body, 202, connecting flange, 203, fixed bolt, 204, sliding groove, 205, buckle groove, 3, gland assembly, 301, packing gland, 302, reverse buckle, 303, limit ring, 304, sealing packing, 305, sealing ring, 306, gland shell, 4, control faucet, 401, control pipeline, 402, connecting head, 403, handle, 404, control rod, 405, valve core, 5, connecting pipeline, 501, pipeline body, 502, nut pipeline, 503, threaded pipeline. DETAILED DESCRIPTION

[0020] The utility model discloses a valve body's cross section structure schematic drawing.

[0021] Refer to Figures 1-4The utility model provides a kind of anti-falling valve cover assembly, including valve body 1 and gland assembly 3, the top of valve body 1 is fixedly connected with valve cover body 2, the top of valve cover body 2 is fixedly connected with gland assembly 3, one side of valve body 1 is fixedly connected with control faucet 4, one side of control faucet 4 is fixedly connected with connecting pipeline 5, gland assembly 3 includes packing gland 301, the bottom of both sides of packing gland 301 is fixedly connected with reverse buckle 302, the top outside of packing gland 301 is fixedly connected with limit ring 303, the bottom of packing gland 301 is movably connected with sealing packing 304, the top middle part of packing gland 301 is movably connected with sealing ring 305, the top of sealing ring 305 is movably connected with gland shell 306, by sealing packing 304 is placed inside cover body 201 along valve stem 103, the position of bottom reverse buckle 302 is rotated 90 ° in the packing gland 301 of both sides to make reverse buckle 302 position correspond the sliding groove 204 of inside cover body 201 positive back, packing gland 301 is inserted inside cover body 201 until the top of cover body 201 and limit ring 303 are attached, and then rotate 90 ° to make reverse buckle 302 and buckle groove 205 cooperate, sealing ring 305 is placed in the top middle part of packing gland 301, finally by the top of cover body 201 and gland shell 306 are connected by screw thread, the bottom middle part of gland shell 306 presses sealing ring 305, it is favorable to the quick installation and disassembly of packing gland 301, and it is convenient to replace and maintain packing.

[0022] In a preferred embodiment, the valve body 1 includes a valve body 101, a fixed groove 102 is formed in the top of the valve body 101, a valve stem 103 is movably connected to the top middle part of the fixed groove 102, a ball 104 is fixedly connected to the bottom of the valve stem 103, the ball 104 is in the shape of a sphere and has a through channel in the middle.

[0023] In a preferred embodiment, the valve cover body 2 includes a cover body 201, a connecting flange 202 is fixedly connected to the bottom of the cover body 201, a fixed bolt 203 is fixedly connected to the top outside of the connecting flange 202, and the fixed bolts 203 are evenly distributed.

[0024] In a preferred embodiment, a sliding groove 204 is formed in the positive back of the inside top of the cover body 201, the length and width of the sliding groove 204 are the same as those of the reverse buckle 302, a buckle groove 205 is formed in the two sides near the top position of the inside of the cover body 201, the buckle groove 205 is adapted to the reverse buckle 302, the cover body 201 is screwedly connected with the gland shell 306 outside the top, by the cooperation of the reverse buckle 302 and the buckle groove 205, the packing gland 301 is easily pulled out quickly after being rotated by 90 °, which is beneficial to prevent the packing gland 301 from falling off after loosening.

[0025] In a preferred embodiment, the control faucet 4 comprises a control pipe 401, a connector 402 is fixedly connected to the middle of the top of the control pipe 401, a handle 403 is movably connected to the outer side of the connector 402, a control rod 404 is movably connected to the inner middle of the connector 402, the top end of the control rod 404 is movably connected to the handle 403, and a valve core 405 is fixedly connected to the bottom of the control rod 404.

[0026] In a preferred embodiment, the connecting pipe 5 comprises a pipe body 501, a nut pipe 502 is fixedly connected to one side of the pipe body 501, and a threaded pipe 503 is fixedly connected to one side of the nut pipe 502.

[0027] In a preferred embodiment, the reverse buckles 302 on the two sides of the bottom of the packing gland 301 are mirror-symmetrically distributed, and the length of a single reverse buckle 302 accounts for one fourth of the outer circle of the bottom of the packing gland 301.

[0028] The working principle of the utility model is as follows:

[0029] By placing the sealing packing 304 into the inside of the cover body 201 along the valve rod 103, rotating the packing gland 301 on the two sides of the bottom reverse buckle 302 by 90° to make the reverse buckle 302 position correspond to the sliding groove 204 on the front and back of the inside of the cover body 201, inserting the packing gland 301 into the inside of the cover body 201 until the top of the cover body 201 is attached to the limiting ring 303, then rotating by 90° to make the reverse buckle 302 cooperate with the buckle groove 205, placing the sealing ring 305 on the top middle of the packing gland 301, and finally screwing the packing gland shell 306 with the top of the cover body 201, the bottom middle of the packing gland shell 306 presses the sealing ring 305, which is beneficial to quickly install and dismount the packing gland 301 and is convenient for replacing and maintaining the packing; through the cooperation of the reverse buckle 302 and the buckle groove 205, the packing gland 301 is easily pulled out after being rotated by 90°, which is beneficial to prevent the packing gland 301 from falling off after loosening;

[0030] When in use, the ball 104 rotates in the valve body 101 by rotating the valve rod 103, until the channel in the middle of the ball 104 is parallel to the pipe, at this time, the valve is opened to the maximum, the flow of the liquid can be adjusted by the control faucet 4, rotating the handle 403 on the connector 402 to drive the control rod 404 to rotate, and then the valve core 405 rotates with the control rod 404, the size of the flow is adjusted by adjusting the opening and closing and size of the channel on the valve core 405.

[0031] Finally, the above-mentioned is only the preferred embodiment of the utility model, and is not used for limiting the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An anti-drop valve cover assembly comprising a valve body (1) and a gland assembly (3), characterized in that: The top of the valve body (1) is fixedly connected with a valve cover body (2), the top of the valve cover body (2) is fixedly connected with a gland assembly (3), one side of the valve body (1) is fixedly connected with a control faucet (4), one side of the control faucet (4) is fixedly connected with a connecting pipeline (5), the gland assembly (3) comprises a packing gland (301), both sides of the bottom of the packing gland (301) are fixedly connected with reverse buckles (302), the top outer side of the packing gland (301) is fixedly connected with a limiting ring (303), the bottom of the packing gland (301) is movably connected with a sealing packing (304), the top middle part of the packing gland (301) is movably connected with a sealing ring (305), and the top of the sealing ring (305) is movably connected with a gland shell (306).

2. A retention valve cover assembly as defined in claim 1, wherein: The valve body (1) comprises a valve body (101), a fixed groove (102) is formed in the top of the valve body (101), the top middle part of the fixed groove (102) is movably connected with a valve rod (103), the bottom of the valve rod (103) is fixedly connected with a spherical body (104), the spherical body (104) is in the shape of a sphere, and a through channel is arranged in the middle part.

3. A retention valve cover assembly as defined in claim 1, wherein: The valve cover body (2) comprises a cover body (201), the bottom of the cover body (201) is fixedly connected with a connecting flange (202), the top outer side of the connecting flange (202) is fixedly connected with fixed bolts (203), and the fixed bolts (203) are uniformly distributed.

4. A retention cap assembly as defined in claim 3, wherein: The front and back of the inner top of the cover body (201) are both provided with sliding grooves (204), the length and width of the sliding grooves (204) are the same as those of the reverse buckles (302), both sides of the cover body (201) are provided with buckle grooves (205) near the top, the buckle grooves (205) are matched with the reverse buckles (302), and the top outer side of the cover body (201) is threadedly connected with the gland shell (306).

5. A retention valve cover assembly as defined in claim 1, wherein: The control faucet (4) comprises a control pipeline (401), the top middle part of the control pipeline (401) is fixedly connected with a connecting head (402), the outer side of the connecting head (402) is movably connected with a handle (403), the inner middle part of the connecting head (402) is movably connected with a control rod (404), the top end of the control rod (404) is movably connected with the handle (403), and the bottom of the control rod (404) is fixedly connected with a valve core (405).

6. A retention valve cover assembly as defined in claim 1, wherein: The connecting pipeline (5) comprises a pipeline body (501), one side of the pipeline body (501) is fixedly connected with a nut pipeline (502), and one side of the nut pipeline (502) is fixedly connected with a threaded pipeline (503).

7. A retention valve cover assembly as defined in claim 4, wherein: The reverse buckles (302) on both sides of the bottom of the packing gland (301) are mirror-symmetrically distributed, and the length of a single reverse buckle (302) accounts for one fourth of the outer circle of the bottom of the packing gland (301).

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