Gate valve body with good sealing effect

Abstract

The gate valve body with the good sealing effect comprises a feeding pipe and a box body connected with the feeding pipe, a collecting mechanism is arranged at the end, close to the box body, of the feeding pipe, a locking mechanism is arranged in the box body, the locking mechanism is connected with a baffle, a hemisphere matched with the feeding pipe in caliber is arranged on the baffle, and the hemisphere is connected with the box body. According to the gate valve body, the baffle for blocking the feeding pipe is arranged in the box body, the hemispheroid is arranged in the center of the baffle to block the feeding pipe, the rubber pad is arranged on the baffle around the hemispheroid, and in addition, the collecting mechanism is further arranged at the lower end of the feeding pipe, so that the feeding pipe is blocked by the hemispheroid, and the collecting mechanism is arranged at the lower end of the feeding pipe. Therefore, heavy impurities in the liquid can fall into the collecting mechanism to be collected, the situation that a rubber pad is directly arranged on an existing baffle to seal the feeding port is replaced, and the heavy impurities are prevented from damaging the rubber pad.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve bodies, in particular to a gate valve body with good sealing effect. Background Art

[0002] At present, the rubber gate valve adopting elastic sealing method includes a rubber gate plate and a valve body; the valve body is provided with a cavity for accommodating the rubber gate plate. In the existing rubber gate valve, since the rubber valve disc is directly used to seal the outlet of the feed pipe, when conveying liquid, the liquid contains impurities that easily wear the rubber gate valve, thereby affecting the elastic sealing performance of the rubber layer and shortening the service life. Therefore, a gate valve body with good sealing effect is needed. Utility Model Content

[0003] The utility model aims to provide a gate valve body with good sealing effect to solve the problems in the background technology.

[0004] In order to achieve the above object, the utility model adopts the following technical solution:

[0005] A gate valve body with good sealing effect comprises a feed pipe and a box body connected to the feed pipe, a collecting mechanism is arranged at one end of the feed pipe close to the box body, a locking mechanism is arranged in the box body, the locking structure is connected to a baffle, a hemisphere matched with the caliber of the feed pipe is arranged on the baffle, and a rubber pad is arranged around the hemisphere on the baffle.

[0006] Furthermore, the locking mechanism includes a screw rod movably arranged in the box body, and movable blocks are symmetrically arranged on the upper and lower ends of the screw rod along the center. The movable blocks are hingedly connected to one end of the movable rod, and the other end of the movable rod is hinged to the fixed block, and the fixed block is connected to the rear end of the baffle.

[0007] Furthermore, the movable block is sleeved on the screw rod and threadedly connected to the screw rod, and the thread directions of the movable blocks at the upper and lower ends of the screw rod are opposite.

[0008] Furthermore, the upper end of the screw rod passes through the box and is provided with a turntable, and the lower end of the screw rod is provided with a circular positioning block, and the positioning block is arranged in a positioning hole at the bottom of the box and can rotate in the positioning hole.

[0009] Furthermore, the collecting mechanism includes an inclined connecting pipe, a flange is provided at the lower end of the connecting pipe, the lower end of the flange is connected to a sealing cover via a sealing ring, a downwardly protruding groove is provided at the center of the sealing cover, and the flange, sealing ring and sealing cover are fastened together by bolts.

[0010] After adopting the above technical solution, the utility model has the following beneficial effects:

[0011] The gate valve body of the utility model is provided with a baffle plate for blocking the feed pipe in the box body, and a hemisphere is provided at the center of the baffle plate to block the feed pipe, and a rubber pad is provided around the hemisphere on the baffle plate. In addition, a collecting mechanism is also provided at the lower end of the feed pipe, so that heavy impurities in the liquid can fall into the collecting mechanism for collection, thereby replacing the existing baffle plate that directly provides a rubber pad to seal the feed port, thereby avoiding damage to the rubber pad by heavy impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of a gate valve body according to an embodiment of the utility model.

[0013] In the figure:

[0014] Feed pipe-1, box body-2, baffle-3, hemisphere-4, rubber pad-5, screw-6, movable block-7, movable rod-8, fixed block-9, turntable-10, positioning block-11, positioning hole-12, connecting pipe-13, flange-14, sealing ring-15, sealing cover-16, groove-17. DETAILED DESCRIPTION

[0015] In order to further explain the technical solution of the present utility model, specific embodiments are described in detail below with reference to the accompanying drawings.

[0016] Reference Figure 1 The utility model provides a gate valve body with good sealing effect, including a feed pipe 1 and a box body 2 connected to the feed pipe 1, a collecting mechanism is arranged at one end of the feed pipe 1 close to the box body 2, a locking mechanism is arranged in the box body 2, the locking structure is connected to the baffle plate 3, a hemispherical body 4 adapted to the diameter of the feed pipe 1 is arranged on the baffle plate 3, and a rubber pad 5 is arranged around the hemispherical body 4 on the baffle plate 3; because the existing gate valve body is used to seal the outlet of the feed pipe 1 by arranging the rubber pad 5 on the baffle plate 3, but the liquid in the feed pipe 1 has heavy impurities that are easily damaged by the rubber pad 5 when flowing with the liquid, and the gate valve body is provided with a hemispherical body 4 on the baffle plate 3 to block the outlet of the feed pipe 1, and the baffle plate 3 is provided with a rubber pad 5 in addition to the hemispherical body 4 to achieve the purpose of sealing the outlet of the feed pipe 1, and in addition, the lower end of the feed pipe 1 is also provided with a collecting mechanism, which can be used to collect heavy impurities to prevent the heavy impurities from flowing with the liquid and causing damage to the rubber pad 5.

[0017] Furthermore, the locking mechanism includes a screw rod 6 movably arranged in the box body 2, and movable blocks 7 are symmetrically arranged along the center of the screw rod 6 toward the upper and lower ends. The movable blocks 7 are hingedly connected to one end of the movable rod 8, and the other end of the movable rod 8 is hinged to the fixed block 9. The fixed block 9 is connected to the rear end of the baffle 3. The movable block 7 is sleeved on the screw rod 6 and threadedly connected to the screw rod 6, and the thread directions of the screw rod 6 connecting the movable blocks 7 at the upper and lower ends are opposite. The upper end of the screw rod 6 passes through the box body 2 and is provided with a turntable 10, and the lower end of the screw rod 6 is provided with a circular positioning block 11. The positioning block 11 is arranged in a positioning hole 12 at the bottom of the box body 2 and the positioning block 11 can rotate in the positioning hole 12; when the turntable 10 is rotated, the positioning block 11 at the lower end of the screw rod 6 rotates in the positioning hole 12, and the two movable blocks 7 on the screw rod 6 can move toward or away from each other, so that the movable rod 8 gradually becomes straight or tilted, and the fixed block 9 and the baffle 3 are pulled close to or away from the discharge port of the feed pipe 1.

[0018] Furthermore, the collecting mechanism includes an inclined connecting pipe 13, a flange 14 is provided at the lower end of the connecting pipe 13, the lower end of the flange 14 is connected to a sealing cover 16 through a sealing ring 15, a downwardly protruding groove 17 is provided at the center of the sealing cover 16, the flange 14, the sealing ring 15 and the sealing cover 16 are fastened and connected by bolts; when heavy impurities in the liquid flow with the liquid, the impurities sink to the bottom and fall into the connecting pipe 13, and finally fall into the groove 17 in the center of the sealing cover 16, and the impurities in the groove 17 can be removed by loosening the bolts.

[0019] During specific operation, by rotating the turntable 10, the screw 6 rotates, and the two movable blocks 7 on the screw 6 can move toward each other, so that the movable rod 8 gradually straightens, pushing the fixed block 9 and the baffle 3 close to the discharge port of the feed pipe 1, until the hemisphere 4 on the baffle 3 extends into the feed pipe 1, and the rubber pad 5 on the baffle 3 presses against the surrounding of the discharge port of the feed pipe 1 to achieve a sealing effect, otherwise the baffle 3 is away from the discharge port of the feed pipe 1, and the liquid flows out through the box 2, and when the heavy impurities in the liquid flow with the liquid, the impurities sink to the bottom and fall into the connecting pipe 13, and finally fall into the groove 17 in the center of the sealing cover 16, and the impurities in the groove 17 can be removed by loosening the bolts.

[0020] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gate valve body with good sealing effect, characterized in that: It includes a feed pipe and a box body connected to the feed pipe, wherein a collecting mechanism is arranged at one end of the feed pipe close to the box body, a locking mechanism is arranged in the box body, the locking mechanism is connected to a baffle, a hemisphere matching the caliber of the feed pipe is arranged on the baffle, and a rubber pad is arranged around the hemisphere on the baffle.

2. The gate valve body with good sealing effect according to claim 1, characterized in that: The locking mechanism includes a screw rod movably arranged in the box body, and movable blocks are symmetrically arranged at the upper and lower ends along the center of the screw rod. The movable blocks are hingedly connected to one end of the movable rod, and the other end of the movable rod is hinged to the fixed block, and the fixed block is connected to the rear end of the baffle.

3. The gate valve body with good sealing effect according to claim 2 is characterized in that: The movable block is sleeved on the screw rod and is threadedly connected to the screw rod, and the screw rod is connected to the movable blocks at the upper and lower ends in opposite directions.

4. The gate valve body with good sealing effect according to claim 3 is characterized in that: The upper end of the screw rod passes through the box body and is provided with a turntable, and the lower end of the screw rod is provided with a circular positioning block, and the positioning block is arranged in a positioning hole at the bottom of the box body and can rotate in the positioning hole.

5. The gate valve body with good sealing effect according to claim 1 is characterized in that: The collecting mechanism comprises an inclined connecting pipe, a flange is arranged at the lower end of the connecting pipe, the lower end of the flange is connected to a sealing cover via a sealing ring, a downwardly protruding groove is arranged at the center of the sealing cover, and the flange, sealing ring and sealing cover are fastened and connected by bolts.

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