Gate valve with protective cover structure

Abstract

The utility model provides a gate valve with a protective cover structure, and belongs to the technical field of valve manufacturing. The problem that an existing gate valve is short in service life is solved. The gate valve with the protective cover structure comprises a valve seat, connecting pipes are connected to the two sides of the valve seat, first flange plates are connected to the exteriors of the sides, away from each other, of the two connecting pipes, a valve cover component is connected to the top of the valve seat, the valve seat and the two connecting pipes are jointly sleeved with a shielding component, the valve cover component comprises a cover body, and a supporting sleeve is connected to the top of the cover body; a valve rod is arranged at the top of the supporting sleeve, the bottom of the valve rod penetrates through the supporting sleeve and the cover body and extends into the valve seat to be connected with a valve plate, the top of the exterior of the valve rod is sleeved with a rotating disc, a T-shaped mounting screw hole is formed in the top of the valve rod, a sealing plug is in threaded connection with the interior of the T-shaped mounting screw hole, and a plurality of flowing holes are formed in the top of the exterior of the valve rod. The bottom of the exterior of the rotating disc and the top of the exterior of the supporting sleeve are jointly sleeved with a protection component. The utility model has the advantages of long service life and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve manufacturing technical field relates to a gate valve especially relates to a gate valve with protective cover structure. BACKGROUND

[0002] Gate valve can only be fully open and fully closed, and cannot be adjusted and throttled, and the gate valve is sealed by the contact between the valve seat and the gate plate, and the sealing surface is usually built up with metal material to increase the wear resistance.

[0003] For example, the Chinese patent document discloses a gate valve [application number: 202222293475.7; authorized announcement number: CN218063463U], which comprises a valve body, a valve flap, a valve stem, a cover, an indicating mechanism and a driving device, wherein the valve body is provided with a temporary storage chamber; the valve flap is arranged in the valve body; the valve stem is threadedly connected with the valve flap, and one end of the valve stem penetrates the temporary storage chamber; the cover is arranged on the valve body, one end of the valve stem penetrates the valve cover, and the valve stem is rotatably connected with the cover; the indicating mechanism comprises a visible assembly and a moving assembly, wherein the visible assembly is arranged on the valve body; the moving assembly is arranged outside the valve stem, the lower surface of the moving assembly is fixed on the top of the valve flap, and the moving assembly abuts against the visible assembly; the driving device is arranged at one end of the valve stem.

[0004] The above-mentioned gate valve is convenient for workers to judge the opening and closing degree of the gate valve and is convenient for adjustment, but the valve body is directly exposed to the outside, the joint of the valve is exposed to the outside for a long time, the valve body at the joint is prone to rust and the sealing element is prone to aging and damage, causing the medium in the valve body to leak, and lacking a heating component, since the valve body surface is not convenient to set the warm-keeping structure, therefore, the valve body is easy to freeze in cold weather, so that the valve body is frozen and the service life of the valve body is reduced. SUMMARY

[0005] The utility model discloses a kind of service life long and possess protective cover structure's gate valve for the above problems existing in prior art.

[0006] The utility model discloses a valve with protective cover structure, including the valve seat, the both sides of valve seat all are connected with the connecting pipe, and the outside of two connecting pipes far from one side all are connected with flange dish no.

[0007] The valve with protective cover structure is shielded by the shielding part, the lower shield cover is sleeved on the bottom of the outside of the two connecting pipes, the upper left shield cover and the upper right shield cover are sleeved on the top of the outside of the two connecting pipes, the positioning bolt no.

[0008] In the valve with protective cover structure, the outside of the cover body and the top of the outside of the valve seat are sleeved with flange dish no.

[0009] In the valve with protective cover structure, the bottom of the inner wall of the T-shaped mounting screw hole is communicated with the top of the inner wall of the valve rod, and the inner wall of the plurality of flow holes is communicated with the inner wall of the valve rod. Through the T-shaped mounting screw hole, the sealing plug is conveniently installed.

[0010] In the valve with protective cover structure, the inner wall of the lower connecting disc is movably sleeved on the outside of the support sleeve through the sealing bearing, the inner wall of the upper connecting disc is movably sleeved on the outside of the rotating disc through the sealing bearing, and the lower connecting disc and the upper connecting disc are connected with the telescopic sleeve. Through the telescopic sleeve, the space between the lower connecting disc and the upper connecting disc can be sealed.

[0011] In the gate valve with the protective cover structure, the two sides of the top of the lower protective cover are sleeved at the bottoms of the outer parts of the two connecting pipes, the bottoms of the upper left protective cover and the upper right protective cover are sleeved at the tops of the outer parts of the two connecting pipes, the bottoms of the two ends of the outer parts of the upper left protective cover and the upper right protective cover are connected with the two sides of the tops of the outer parts of the lower protective cover, and the two sides of the lower protective cover are provided with the heaters.

[0012] In the gate valve with the protective cover structure, the two sides of the top of the lower protective cover are sleeved at the bottoms of the outer parts of the two connecting pipes, the two sides of the top of the lower protective cover are sleeved at the bottoms of the outer parts of the two connecting pipes, the bottoms of the upper left protective cover and the upper right protective cover are sleeved at the tops of the outer parts of the two connecting pipes, the bottoms of the two ends of the outer parts of the upper left protective cover and the upper right protective cover are connected with the two sides of the tops of the outer parts of the lower protective cover, and the two sides of the lower protective cover are provided with the heaters.

[0013] Compared with the prior art, the gate valve with the protective cover structure is provided with the shielding part, the lower protective cover is sleeved at the bottoms of the outer parts of the two connecting pipes, the upper left protective cover and the upper right protective cover are sleeved at the tops of the outer parts of the two connecting pipes, the positioning bolt one penetrates through the two connecting plates one and is screwed with the positioning nut one, the positioning bolt two penetrates through the two connecting plates two and is screwed with the positioning nut two, the connection of the lower protective cover and the upper left protective cover, the connection of the lower protective cover and the upper right protective cover and the connection of the upper left protective cover and the upper right protective cover are completed, the valve seat is protected, the heater is started by the remote control end of the gate valve in cold weather, the gate valve is prevented from being damaged by freezing, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural cooperation exploded view of the valve seat, the valve cover part and the protective part in the utility model.

[0016] Figure 3 It is a shielding part structure exploded view in the utility model.

[0017] In the figure: 1, shielding component; 11, upper left shield; 12, connecting plate two; 13, positioning bolt two; 14, heater; 15, upper right shield; 16, positioning bolt one; 17, lower shield; 18, connecting plate one; 2, flange plate one; 3, valve cover component; 31, valve rod; 32, support sleeve; 33, flange plate two; 34, cover body; 35, flow hole; 36, T-shaped mounting screw hole; 37, sealing plug; 4, protection component; 41, upper connecting disc; 42, telescopic sleeve; 43, lower connecting disc; 5, rotating disc; 6, connecting pipe; 7, valve seat. DETAILED DESCRIPTION

[0018] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0019] As shown in Figure 1 , Figure 2 and Figure 3 , the gate valve with the protection cover structure comprises a valve seat 7, both sides of the valve seat 7 are connected with connecting pipes 6, the outer sides of the two connecting pipes 6 away from each other are connected with flange plates one 2, the top of the valve seat 7 is connected with a valve cover component 3, the outer sides of the valve seat 7 and the two connecting pipes 6 are collectively sleeved with a shielding component 1, the valve cover component 3 comprises a cover body 34, the top of the cover body 34 is connected with a support sleeve 32, the top of the support sleeve 32 is provided with a valve rod 31, the bottom of the valve rod 31 penetrates through the support sleeve 32 and the cover body 34 and extends into the inside of the valve seat 7 to be connected with a valve plate, the top of the outer side of the valve rod 31 is sleeved with a rotating disc 5, the top of the valve rod 31 is provided with T-shaped mounting screw holes 36, the inside of the T-shaped mounting screw holes 36 is threadedly connected with sealing plugs 37, the top of the outer side of the valve rod 31 is provided with a plurality of flow holes 35, the bottom of the outer side of the rotating disc 5 and the top of the outer side of the support sleeve 32 are collectively sleeved with a protection component 4, the shielding component 1 comprises a lower shield 17, an upper left shield 11 and an upper right shield 15.

[0020] The outer side of the cover body 34 and the top of the outer side of the valve seat 7 are sleeved with flange plates two 33, the top of the flange plate two 33 at the top is provided with a plurality of connecting bolts, the bottom of the connecting bolts penetrates through the two flange plates two 33 and is threadedly sleeved with connecting nuts.

[0021] The bottom of the inner wall of the T-shaped mounting screw hole 36 and the top of the inner wall of the valve rod 31 are in communication, the inner walls of the plurality of flow holes 35 on one side close to each other are in communication with the inner wall of the valve rod 31. The protection component 4 comprises a lower connecting disc 43 and an upper connecting disc 41, the inner wall of the lower connecting disc 43 is movably sleeved on the outer side of the support sleeve 32 through a sealing bearing, the inner wall of the upper connecting disc 41 is movably sleeved on the outer side of the rotating disc 5 through a sealing bearing, and the lower connecting disc 43 and the upper connecting disc 41 are connected with a telescopic sleeve 42.

[0022] The lower shield 17 is sleeved on the bottom of the two connecting pipes 6, the upper left shield 11 and the upper right shield 15 are sleeved on the top of the two connecting pipes 6, the bottom of the two ends of the upper left shield 11 and the upper right shield 15 is connected with the two sides of the top of the two ends of the outer part of the lower shield 17, the two connecting plates one 18 are arranged between the upper left shield 11 and the upper right shield 15, the positioning bolt one 16 is arranged through the two connecting plates one 18, the positioning nut one is sleeved on the bottom of the outer part of the positioning bolt one 16, and the heater 14 is installed on the inner wall of the lower shield 17.

[0023] The upper left shield 11 and the upper right shield 15 are sleeved on the outer part of the valve seat 7, the two ends of the outer part of the upper left shield 11 and the two ends of the outer part of the upper right shield 15 are connected with the two connecting plates two 12, the positioning bolt two 13 is arranged through the two connecting plates two 12, and the positioning nut two is sleeved on the outer part of the positioning bolt two 13.

[0024] In use, the lower shield 17 is sleeved on the bottom of the two connecting pipes 6, the upper left shield 11 and the upper right shield 15 are sleeved on the top of the two connecting pipes 6, the positioning bolt one 16 is arranged through the two connecting plates one 18 and the positioning nut one is screwed, the positioning bolt two 13 is arranged through the two connecting plates two 12 and the positioning nut two is screwed, the connection between the lower shield 17 and the upper left shield 11, the connection between the lower shield 17 and the upper right shield 15, and the connection between the upper left shield 11 and the upper right shield 15 are completed, so that the valve seat 7 is protected, the heater 14 is started by the remote control end of the gate valve when the weather is cold, and the gate valve is prevented from being damaged by freezing. Further, the lubricating oil is added to the telescopic sleeve 42 through the T-shaped mounting screw hole 36, the T-shaped mounting screw hole 36 is sealed by the sealing plug 37, the added lubricating oil lubricates the valve rod 31, rust is prevented from occurring after a long time, the subsequent opening and closing of the gate valve are facilitated, the telescopic sleeve 42 is stretched when the rotating disc 5 is reversely rotated to drive the valve rod 31 to rise, the valve rod 31 is shielded and protected by the telescopic sleeve 42, and the service life of the valve rod 31 is prolonged.

[0025] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the specific embodiments described or adopt similar ways to replace, but will not deviate from the spirit of the utility model or exceed the range defined by the appended claims.

Claims

1. A gate valve with a shield structure, comprising a valve seat (7), characterized in that: The both sides of the valve seat (7) are connected with the connecting pipes (6), the outer sides of the two connecting pipes (6) are connected with the flanges (2), the top of the valve seat (7) is connected with the valve cover component (3), the valve seat (7) and the outer sides of the two connecting pipes (6) are collectively sleeved with the shielding component (1), the valve cover component (3) comprises a cover body (34), the top of the cover body (34) is connected with a supporting sleeve (32), the top of the supporting sleeve (32) is provided with a valve rod (31), the bottom of the valve rod (31) penetrates the supporting sleeve (32) and the cover body (34) and extends into the valve seat (7) and is connected with a valve plate, the top of the outer side of the valve rod (31) is sleeved with a rotating disc (5), the top of the valve rod (31) is provided with a T-shaped mounting screw hole (36), the inside of the T-shaped mounting screw hole (36) is screwed with a sealing plug (37), the top of the outer side of the valve rod (31) is provided with a plurality of flow holes (35), the bottom of the outer side of the rotating disc (5) and the top of the outer side of the supporting sleeve (32) are collectively sleeved with a protection component (4), and the shielding component (1) comprises a lower shield (17), an upper left shield (11) and an upper right shield (15).

2. A gate valve with a guard structure according to claim 1, characterized in that: The outer side of the cover body (34) and the top of the outer side of the valve seat (7) are sleeved with flanges (33), the top of the top flange (33) is provided with a plurality of connecting bolts, the bottom of the connecting bolts penetrates the two flanges (33) and is screwed with connecting nuts.

3. The gate valve with a guard structure according to claim 1, characterized in that: The bottom of the inner wall of the T-shaped mounting screw hole (36) is communicated with the top of the inner wall of the valve rod (31), and the inner walls of the plurality of flow holes (35) are communicated with the inner wall of the valve rod (31) on one side.

4. The gate valve with a guard structure according to claim 1, characterized in that: The protection component (4) comprises a lower connecting disc (43) and an upper connecting disc (41), the inner wall of the lower connecting disc (43) is movably sleeved on the outer side of the supporting sleeve (32) through a sealing bearing, the inner wall of the upper connecting disc (41) is movably sleeved on the outer side of the rotating disc (5) through a sealing bearing, and the lower connecting disc (43) and the upper connecting disc (41) are connected with an elastic sleeve (42).

5. The gate valve with a guard structure according to claim 1, characterized in that: The top of the lower shield (17) is sleeved on the bottom of the outer side of the two connecting pipes (6), the bottoms of the upper left shield (11) and the upper right shield (15) are sleeved on the top of the outer side of the two connecting pipes (6), the bottoms of the two ends of the outer sides of the upper left shield (11) and the upper right shield (15) are connected with connecting plates (18) on the two sides of the top of the outer side of the lower shield (17), a positioning bolt (16) penetrates the two connecting plates (18), the bottom of the outer side of the positioning bolt (16) is screwed with a positioning nut (1), and the inner walls of the lower shield (17) are provided with heaters (14) on the two sides.

6. A gate valve with a guard structure according to claim 1, characterized in that: The opposite side of the upper left shield (11) and the upper right shield (15) is sleeved on the outside of the valve seat (7), both ends of the outside of the upper left shield (11) and the outside of the upper right shield (15) are connected with the connecting plate two (12), the positioning bolt two (13) is arranged between the two connecting plate two (12), and the outside of the positioning bolt two (13) is sleeved with the positioning nut two.

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