Ship lift hydraulic system ball valve with handle capable of being locked at any position

Abstract

A ship lift hydraulic system ball valve with a handle capable of being locked at any position comprises a valve body, the handle is installed on a valve rod of the valve body, a locking gear is fixed to the valve body of the valve body, and the valve rod freely penetrates through a center through hole of the locking gear. A locking block is arranged on the handle in a sliding mode, and one end of the locking block abuts against the locking gear through a spring and is connected with the locking gear in a clamped mode. According to the ship lift hydraulic system ball valve with the handle capable of being locked at any position, the handle can be locked at any opening degree, and the stability of the state of the ball valve is effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball valve, especially a ship lift hydraulic system ball valve with a handle that can be locked at any position. BACKGROUND

[0002] The ship lift hydraulic system ball valve generally has an opening and closing position and a closing position, when the handle is rotated to make the valve core opening degree reach 100% or 0, the handle is limited to ensure that the valve core is at the correct opening terminal position or closing terminal position. However, when the valve core opening degree is required to be set at an intermediate value, the handle will be in a state of unlimited position, and the handle has only one side limit when at the opening terminal position or the closing terminal position, and the vibration generated during the operation of the hydraulic system or human error can easily cause the handle to rotate, thereby affecting the opening degree value of the ball valve and bringing risks to the stable operation of the hydraulic system. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a ship lift hydraulic system ball valve with a handle that can be locked at any position, which can lock the handle at any opening degree, effectively ensures the stability of the ball valve state, and greatly reduces the risks caused by vibration or human error.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A ship lift hydraulic system ball valve with a handle that can be locked at any position, comprising a valve body, a handle installed on the valve rod of the valve body, a locking gear fixed on the valve body of the valve body, and the valve rod freely passing through the center through hole of the locking gear.

[0006] The locking block comprises a sliding block, a wedge-shaped block fixed at the lower end of the sliding block, a threaded hole opened at the upper end of the sliding block, a sliding rod fixed on the back of the sliding block, and a spring sleeved on the sliding rod.

[0007] The handle comprises a handle main body, a square head hole at the front end of the handle main body matched with the square head of the valve rod, and a compression gland and a bolt fixed between the handle main body and the valve rod; a sliding groove and a spring groove are arranged on the handle main body in the length direction and are in communication with each other, wherein the sliding block is located in the sliding groove, the wedge-shaped block is located at the lower end of the sliding groove and is attached to the lower end surface of the handle main body; the operating block is threadedly connected with the upper end of the sliding block and is attached to the upper end surface of the handle main body; and the spring is located in the spring groove and pushes the sliding block to the front end of the sliding groove.

[0008] The utility model provides a ship lift hydraulic system ball valve with a handle that can be locked at any position, which has the following technical effects:

[0009] 1. By increasing the locking gear on the valve body and the locking device on the handle, the handle can be automatically locked at any position, and the valve core opening degree is ensured to be unchanged.

[0010] 2) The locking device in this application uses a back-and-forth movement method to achieve locking and unlocking, which is convenient to operate and does not affect the normal operation of the ball valve.

[0011] 3) The slide groove allows for a clear and intuitive observation of the contact between the wedge block and the locking gear, making it easier for operators to determine the locking status. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Fig. 1 This is a schematic diagram of the valve body in this utility model.

[0014] Fig. 2 This is a schematic diagram of the handle in this utility model.

[0015] Fig. 3 This is a schematic diagram of the installation structure of this utility model.

[0016] Fig. 4 This is a schematic diagram of the handle body in this utility model.

[0017] Fig. 5 This is a schematic diagram of the locking block in this utility model.

[0018] Fig. 6 This is a schematic diagram of the connection between the locking block and the spring in this utility model.

[0019] Fig. 7 This is a top view of the handle in this utility model.

[0020] In the diagram: valve body 1, pressure cap 2, operating block 3, locking block 4, spring 5, handle 6, valve body 1-1, valve stem 1-2, locking gear 1-3, slider 4-1, slide rod 4-2, wedge block 4-3, handle body 6-1, slide groove 6-2, spring groove 6-3. Detailed Implementation

[0021] like Figs. 1-3 As shown, a ball valve for a ship lift hydraulic system with a handle that can be locked in any position includes a valve body 1. The valve stem 1-2 of the valve body 1 has a square head structure at one end and a threaded hole machined in the center. The handle 6 engages with the square head of the valve stem 1-2 through the square head hole. The upper end of the handle 6 is connected to the valve stem 1-2 as a whole through a pressure cap 2 and bolts. In this way, turning the handle 6 can directly drive the valve stem 1-2 to rotate circumferentially.

[0022] like Figs. 1-3As shown, in order to realize the locking of handle 6 in any position, locking gear 1-3 is fixed on valve body 1-1 of valve body 1, locking gear 1-3 is formed with through hole in the center, valve stem 1-2 passes through the through hole of locking gear 1-3 and extends out of locking gear 1-3, valve stem 1-2 can rotate freely relative to valve body 1-1 and locking gear 1-3.

[0023] As shown, Fig. 4 In addition, as shown, sliding groove 6-2 and spring groove 6-3 are arranged on handle main body 6-1 of handle 6 along the length direction, and sliding groove 6-2 and spring groove 6-3 are communicated.

[0024] As shown, Figs. 2-4 As shown, the width of sliding groove 6-2 is consistent with the width of sliding block 4-1 of locking block 4. The sliding block 4-1 of the locking block 4 is located in the sliding groove 6-2, and the lower end of the sliding block 4-1 is connected with the wedge block 4-3, and the upper end surface of the wedge block 4-3 is in contact with the lower end surface of the handle main body 6-1. The upper end of the sliding block 4-1 is provided with a vertical threaded hole, the upper end of the sliding block 4-1 passes through the handle main body 6-1 and is connected with the operating block 3 through bolts. The lower end surface of the operating block 3 is in contact with the upper end surface of the handle main body 6-1. The back surface of the sliding block 4-1 is fixed with a sliding rod 4-2, the sliding rod 4-2 is sleeved with a spring 5, and the other end of the spring 5 is connected with the inner end surface of the spring groove 6-3 away from the sliding groove 6-2.

[0025] During the assembly of the locking block 4 and the spring 5 into the handle main body 6-1, the spring 5 is in a compressed state, which ensures that after the assembly is completed, the locking block 4 is located at the front end of the sliding groove 6-2 under the action of the spring 5, and the spring 5 is clamped in the spring groove 6-3. After the operating block 3 and the sliding block 4-1 are connected by bolts, the operating block 3 is pushed by hand, and the locking block 4 moves back and forth in the sliding groove 6-2 along with the operating block 3.

[0026] As shown, Fig. 3 Fig. 4 As shown, when the handle 6 and the valve body 1 are installed, the operating block 3 should be pushed backward to ensure that the wedge block 4-3 does not contact the locking gear 1-3. After the position of the handle 6 and the valve stem 1-2 is determined, the operating block 3 can be loosened, the gland 2 is connected with the valve stem 1-2 through bolts, and the installation of the handle 6 and the valve body 1 is stable.

[0027] Working principle and process: when the opening of the ball valve needs to be adjusted, the operating block 3 is pushed backward and held by hand, the wedge block 4-3 is separated from the locking gear 1-3, and the handle main body 6-1 is rotated to adjust the opening to the set value, then the operating block 3 is loosened, the locking block 4 moves forward to the front end of the sliding groove 6-2 under the action of the spring 5, and the wedge block 4-3 contacts the locking gear 1-3, so that the handle 6 is locked.

Claims

1. A hydraulic system ball valve of a ship lift with a handle that can be locked at any position, comprising a valve body (1), a handle (6) is installed on a valve stem (1-2) of the valve body (1), characterized in that: The valve body (1) is fixed with a locking gear (1-3) on the valve body (1-1), and the valve rod (1-2) freely passes through the center through hole of the locking gear (1-3); the handle (6) is slidably provided with a locking block (4), one end of the locking block (4) is tightly pressed on the locking gear (1-3) by the spring (5) and is clamped with the locking gear (1-3).

2. The hydraulic system ball valve of the ship lift with handle that can lock in any position according to claim 1, characterized in that: The locking block (4) comprises a sliding block (4-1), the lower end of the sliding block (4-1) is fixed with a wedge-shaped block (4-3), the upper end of the sliding block (4-1) is provided with a threaded hole, the back of the sliding block (4-1) is fixed with a sliding rod (4-2), and the sliding rod (4-2) is sleeved with the spring (5).

3. The hydraulic system ball valve of the ship lift with handle that can lock in any position according to claim 2, characterized in that: The handle (6) comprises a handle main body (6-1), the front end of the handle main body (6-1) is matched with the square head of the valve rod (1-2) through a square head hole, and the handle main body (6-1) and the valve rod (1-2) are fixed through the gland (2) and the bolt; the handle main body (6-1) is provided with a sliding groove (6-2) and a spring groove (6-3) which are communicated with each other in the length direction, wherein the sliding block (4-1) is located in the sliding groove (6-2), the wedge-shaped block (4-3) is located at the lower end of the sliding groove (6-2) and is attached to the lower end surface of the handle main body (6-1); the operating block (3) is threadedly connected with the upper end of the sliding block (4-1) and is attached to the upper end surface of the handle main body (6-1); the spring (5) is located in the spring groove (6-3) and pushes the sliding block (4-1) to the front end of the sliding groove (6-2).

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