Novel gate valve

Abstract

The utility model relates to a novel gate valve which comprises a valve body, a valve cover is fixedly connected to the top of the valve body, a valve rod is installed on the valve body, the upper end of the valve rod penetrates out of the top of the valve cover, a connecting cover is fixedly connected to the top face of the valve cover, and a connecting block is fixedly connected to the middle of the surface of the valve rod in a sleeved mode. A locking assembly is installed on the side surface of the connecting block, through mutual cooperation of all the parts, when the gate plate ascends to the highest position and the gate valve is completely opened, the locking assembly is aligned with the inserting hole, an inserting rod in the locking assembly can be pushed by a spring to be inserted into the inserting hole, and therefore the valve rod is locked, the gate plate is kept in the current state, and the gate valve is prevented from being damaged. The gate plate is prevented from being impacted by media, the service life of the gate plate is prolonged, the push rod enters the insertion hole, the insertion rod can be pushed out of the insertion hole, locking of the valve rod can be relieved, locking of the valve rod can be quickly relieved when the gate valve needs to be closed, operation is easy and convenient, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, in particular to a new type of gate valve. BACKGROUND

[0002] The gate valve is a gate board, and the movement direction of the gate board is perpendicular to the fluid direction. The gate valve can only be fully opened or closed. The gate valve is arranged on a water pipeline or other fluid pipeline. When the fluid in the pipeline needs to be cut off, the gate board is usually lowered by manually rotating a hand wheel to achieve the pipeline cut-off.

[0003] The operation of the gate valve usually depends on the rotation of the valve stem to control the opening and closing state of the valve plate. However, a common problem is that the valve plate may not be fully opened, which can cause the fluid in the pipeline to directly impact the sealing area of the valve plate, thereby reducing the overall service life of the gate valve. The current gate valve design has a defect, that is, it lacks a mechanism to ensure that the valve plate is locked in the fully open position to prevent adverse effects caused by the incomplete opening of the valve plate. SUMMARY

[0004] The utility model aims at providing a new type of gate valve to solve the problems mentioned in the background.

[0005] The technical scheme of the utility model is a new type of gate valve, which comprises a valve body, a valve cover fixedly connected to the top of the valve body, a valve stem installed on the valve body, the upper end of the valve stem penetrating to the outside of the top of the valve cover, a connecting cover fixedly connected to the top surface of the valve cover, a connecting block fixedly sleeved on the middle part of the surface of the valve stem, a locking assembly installed on the side surface of the connecting block, a plug hole formed on the left and right sides of the connecting cover and close to the top, the plug hole being matched with the locking assembly, a reset assembly installed on the side surface of the connecting cover, the reset assembly being matched with the plug hole, and a hand wheel fixedly connected to the top surface of the valve stem.

[0006] In one embodiment, the locking assembly comprises two connecting sleeves, the two connecting sleeves being fixedly connected to the left and right sides of the connecting block, respectively, two connecting sleeves being movably sleeved with a plug rod at the opposite ends, the plug rod being matched with the plug hole, the end of the plug rod close to the connecting block penetrating into the inner cavity of the connecting sleeve, the end face of the plug rod close to the connecting block being fixedly connected with a movable block, the side of the movable block away from the plug rod being fixedly connected with a spring, and one end of the spring being fixedly connected with the inner wall of the connecting sleeve away from the connecting block.

[0007] In one embodiment, the end face of the plug rod away from the movable block is provided with a movable groove, the movable groove being movably connected with a ball, and the surface of the ball is matched with the side surface of the inner wall of the connecting cover.

[0008] In one embodiment, the reset assembly comprises two fixed blocks, the two fixed blocks are respectively arranged at the left and right sides of the connecting cover and close to the top, the middle part of the two fixed blocks is movably sleeved with a push rod, the two push rods are respectively arranged opposite to each other and matched with the adjacent insertion hole, the top and the bottom of each fixed block close to the side of the connecting cover are fixedly connected with a connecting rod, the end faces of the left and right connecting rods away from the fixed block are fixedly connected with the left and right sides of the connecting cover, and the end face of the push rod away from the connecting cover is fixedly connected with a handle.

[0009] In one embodiment, the middle part of the fixed block is provided with a movable hole, the push rod is movably sleeved in the movable hole, the movable hole is provided with a thread, and the side of the surface of the push rod away from the connecting cover is provided with a thread matched with the thread in the movable hole.

[0010] In one embodiment, the middle part of the bottom surface of the hand wheel is fixedly sleeved with a protective cover, the upper end of the valve rod is sleeved in the inner cavity of the protective cover, the protective cover is matched with the connecting cover, and the side surface of the protective cover is fixedly connected with a sealing ring.

[0011] The beneficial effects of the utility model are:

[0012] Through the cooperation between the components, when the gate plate rises to the highest position and the gate valve is completely opened, the locking assembly is aligned with the insertion hole, the insertion rod in the locking assembly is pushed into the insertion hole by the spring, thereby locking the valve rod, so that the gate plate remains in the current state, avoiding the impact of the medium on the gate plate, prolonging the service life of the gate plate, and the insertion rod can be pushed out of the insertion hole through the push rod, thereby releasing the locking of the valve rod, so that the locking of the valve rod can be quickly released when the gate valve needs to be closed, the operation is simple and convenient, and the practicability is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is the main sectional view of the utility model;

[0015] Figure 3 It is Figure 2 It is the structure enlarged view of the middle A;

[0016] Figure 4 It is Figure 2 It is the structure enlarged view of the middle B;

[0017] Figure 5 It is the main sectional view of the fixed block.

[0018] In the drawings, 1, valve body; 2, valve cover; 3, valve stem; 4, connecting cover; 5, connecting block; 6, locking assembly; 61, connecting sleeve; 62, plug rod; 63, movable block; 64, spring; 65, movable groove; 66, ball; 7, insertion hole; 8, reset assembly; 81, fixed block; 82, push rod; 83, connecting rod; 84, handle; 85, movable hole; 9, hand wheel; 10, protective cover; 11, sealing ring. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The technical scheme of the utility model will be further described below in combination with the drawings of the utility model embodiments. The utility model is not limited to the following specific embodiments.

[0020] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top" and "bottom" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In one embodiment, as shown in Figures 1-5 A new gate valve, comprising a valve body 1, the top of the valve body 1 is fixedly connected with a valve cover 2, a valve stem 3 is installed on the valve body 1, the upper end of the valve stem 3 penetrates to the outside of the top of the valve cover 2, the top surface of the valve cover 2 is fixedly connected with a connecting cover 4, the middle part of the surface of the valve stem 3 is fixedly sleeved with a connecting block 5, the side surface of the connecting block 5 is installed with a locking assembly 6, the left and right sides of the connecting cover 4 and close to the top are each provided with an insertion hole 7, the insertion hole 7 is matched with the locking assembly 6, the side surface of the connecting cover 4 is installed with a reset assembly 8, the reset assembly 8 is matched with the insertion hole 7, and the top surface of the valve stem 3 is fixedly connected with a hand wheel 9.

[0022] In order to lock the valve rod 3 after the gate is fully opened, the locking assembly 6 comprises two connecting sleeves 61 fixedly connected to the left and right sides of the connecting block 5, the distal ends of the two connecting sleeves 61 are movably sleeved with a plug rod 62, the plug rod 62 is matched with the plug hole 7, the end of the plug rod 62 close to the connecting block 5 penetrates into the inner cavity of the connecting sleeve 61, the end of the plug rod 62 close to the connecting block 5 is fixedly connected with a movable block 63, the side of the movable block 63 away from the plug rod 62 is fixedly connected with a spring 64, one end of the spring 64 is fixedly connected with the inner wall of the connecting sleeve 61 away from the connecting block 5.

[0023] In order to reduce the frictional resistance between the plug rod 62 and the side surface of the inner wall of the connecting cover 4, thereby avoiding that the hand wheel 9 is more laborious to rotate due to excessive frictional resistance, the end face of the plug rod 62 away from the movable block 63 is provided with a movable groove 65, and a ball 66 is movably connected in the movable groove 65, and the surface of the ball 66 is attached to the side surface of the inner wall of the connecting cover 4.

[0024] In order to facilitate the plug rod 62 to be pushed out of the plug hole 7, thereby releasing the locking of the valve rod 3, the reset assembly 8 comprises two fixed blocks 81 arranged on the left and right sides of the connecting cover 4 close to the top, the middle portions of the two fixed blocks 81 are movably sleeved with a push rod 82, the two push rods 82 are arranged on the left and right sides of the adjacent plug hole 7 and are matched with each other, and the top and bottom of each fixed block 81 close to the connecting cover 4 are fixedly connected with a connecting rod 83, the end faces of the left and right connecting rods 83 away from the fixed block are fixedly connected with the left and right sides of the connecting cover 4, and the end face of the push rod 82 away from the connecting cover 4 is fixedly connected with a handle 84.

[0025] In order to fix the push rod 82 after the plug rod 62 is pushed out of the plug hole 7, so that the push rod 82 remains in the plug hole 7 and cannot be pushed out, the middle portion of the fixed block 81 is provided with a movable hole 85, the push rod 82 is movably sleeved in the movable hole 85, the movable hole 85 is provided with a screw thread, and the surface of the push rod 82 away from the connecting cover 4 is provided with a screw thread, and the screw thread in the movable hole 85 is matched with the screw thread on the surface of the push rod 82.

[0026] In order to cover the top of the connecting cover 4 when the gate is closed, thereby protecting the end of the valve rod 3 outside the valve cover 2, reducing the influence of the external environment on the valve rod 3, the bottom surface of the hand wheel 9 is fixedly sleeved with a protective cover 10, the upper end of the valve rod 3 is sleeved in the inner cavity of the protective cover 10, the protective cover 10 is matched with the connecting cover 4, and the side surface of the protective cover 10 is fixedly connected with a sealing ring 11.

[0027] Working principle: the utility model for use, rotate hand wheel 9 make valve stem 3 rotate, valve stem 3 rotate will move upwards, valve stem 3 will drive the gate of valve body 1 to move upwards, valve stem 3 will drive locking assembly 6 to rotate and move upwards simultaneously, the rolling of ball 66 can greatly reduce the frictional resistance between inserting rod 62 and connecting cover 4, avoid due to the frictional resistance overlarge and make hand wheel 9 rotate more laborious, when the gate rises to the highest place, lock assembly 6 is just opposite with the insertion hole 7, spring 64 is always in the state of compression before this time, the elastic potential of spring 64 will push movable block 63 to move, movable block 63 will push inserting rod 62 outward, make inserting rod 62 insert into insertion hole 7, thereby the locking of valve stem 3, make the gate keep the current state, avoid the gate to be impacted by medium, thereby improve the service life of the gate, when needing to close the gate valve, first push the handle 84 and make push rod 82 enter into insertion hole 7, push rod 82 enters into insertion hole 7 after will push inserting rod 62 outward, after push rod 82 enters into insertion hole 7 certain distance, the position of push rod 82 surface with thread is entered into movable hole 85, twist handle 84 can make push rod 82 rotate and be connected in movable hole 85 with screw thread at this time, avoid when loosening handle 84, push rod 82 is pushed out to the outside due to the elastic potential of spring 64, lead to inserting rod 62 reinserts into insertion hole 7, push rod 82 inserts into insertion hole 7 until push inserting rod 62 to the outside of insertion hole 7, thereby release the locking of valve stem 3, make when needing to close the gate valve, can quickly release the locking of valve stem 3, it is easy to operate, the practicability is high, after releasing the locking of valve stem 3, reverse twist hand wheel 9 can make the gate drop and close the gate valve, valve stem 3 drops, protective cover 10 also drops, when the gate valve is closed, protective cover 10 also drops and inserts into the top of the inner chamber of connecting cover 4, hand wheel 9 and protective cover 10 cooperate and cover the top of connecting cover 4, thereby the protection of the one end of valve stem 3 located the outside of valve cover 2, reduce the influence of external environment to valve stem 3.

[0028] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0029] The above embodiments only express several implementation manners of the present utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent should be subject to the appended claims.

Claims

1. A new type of gate valve, characterized in that, The utility model provides a valve, including valve body, the top fixed connection of valve body has valve cover, install valve stem on valve body, the upper end of valve stem penetrates to the outside of valve cover top, the top surface of valve cover is fixedly connected with connecting cover, the middle part of valve stem surface is fixedly sleeved with connecting block, locking assembly is installed to the side surface of connecting block, the left and right sides of connecting cover and close top all are equipped with the insertion hole, the insertion hole is matched with locking assembly, reset assembly is installed to the side surface of connecting cover, reset assembly is matched with insertion hole, the top surface of valve stem is fixedly connected with hand wheel.

2. A new type of gate valve as claimed in claim 1, characterized in that: The locking assembly includes two connecting sleeves, two connecting sleeves are fixedly connected to the left and right sides of the connecting block, the opposite ends of the two connecting sleeves are movably sleeved with insertion rods, the insertion rods are adapted to the insertion holes, one end of the insertion rod near the connecting block penetrates into the inner cavity of the connecting sleeve, the end face of the insertion rod near the connecting block is fixedly connected with a movable block, the side of the movable block away from the insertion rod is fixedly connected with a spring, one end of the spring is fixedly connected with the inner wall of the connecting sleeve away from the connecting block.

3. A new type of gate valve as claimed in claim 2, characterized in that: The end face of the insertion rod away from the movable block is provided with a movable groove, a ball is movably connected in the movable groove, and the surface of the ball is attached to the side surface of the inner wall of the connecting cover.

4. A new type of gate valve as claimed in claim 1, characterized in that: The reset assembly includes two fixed blocks, two fixed blocks are arranged on the left and right sides of the connecting cover near the top, the middle part of the two fixed blocks is movably sleeved with a push rod, the two push rods are arranged opposite to the adjacent insertion holes on the left and right sides and are adapted to each other, the top and bottom of the side of each fixed block near the connecting cover are fixedly connected with a connecting rod, the end faces of the left and right connecting rods away from the fixed block are fixedly connected with the left and right sides of the connecting cover, and the end face of the push rod away from the connecting cover is fixedly connected with a handle.

5. A new type of gate valve as claimed in claim 4, characterized in that: The middle part of the fixed block is provided with a movable hole, the push rod is movably sleeved in the movable hole, the movable hole is provided with a thread, the side of the surface of the push rod away from the connecting cover is provided with a thread, and the thread in the movable hole is adapted to the thread on the surface of the push rod.

6. A new type of gate valve as claimed in claim 1, characterized in that: The middle part of the bottom surface of the hand wheel is fixedly sleeved with a protective cover, the upper end of the valve stem is sleeved in the inner cavity of the protective cover, the protective cover is adapted to the connecting cover, and the side surface of the protective cover is fixedly connected with a sealing ring.

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