Valve limiting mechanism

Abstract

The utility model relates to the technical field of valve adjustment, and discloses a valve limiting mechanism which comprises a valve body, a ball core is rotationally installed in the valve body, a connecting rod is connected to the ball core, a sliding rod is installed on the connecting rod in a sliding mode, a rotating disc is installed at one end of the sliding rod, a connecting ring is connected to the other end of the sliding rod, and four clamping blocks are connected to the bottom of the connecting ring. A plurality of clamping grooves are formed in the chuck, two limiting grooves are symmetrically formed in the inner wall of the sliding rod, limiting blocks are installed in the two limiting grooves in a sliding mode, the limiting blocks are connected to the connecting rod, an installation groove is formed between the connecting rod and the sliding rod, and a spring is installed in the installation groove. The scale marks are matched with the indicating arrow to accurately adjust the flow, the clamping block and the clamping groove are matched to ensure stable flow control, the structural reliability is enhanced, the limiting block and the limiting groove stabilize movement of the sliding rod, the clamping groove chamfer facilitates returning of the clamping block, and the state of the valve can be rapidly judged by observing the second scale mark. The structure is simple, and maintenance is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve adjusting technical field, concretely relates to a valve limiting mechanism. BACKGROUND

[0002] In today's complex and diverse industrial production field, as the key component of controlling fluid flow, the valve always plays an important role, and the precise control of the valve determines whether the production process can proceed smoothly, and any slight difference may cause production stagnation, product quality decline and other problems, and even serious safety accidents, which may cause great threat to personnel and equipment.

[0003] Through the search CN219345673U discloses a valve limiting mechanism, including valve body, one end of valve body is fixedly connected with water outlet pipe. Through the setting of limiting assembly, valve body and valve core plate and other devices, when need to make valve, only need to press hand wheel, hand wheel drives transmission rod to move downward, drives down pressure ring, down pressure ring drives connecting rod to downward operation ring, operation ring downward extrusion reset spring, drives limiting block to move upward to remove limiting block to the limiting of limiting tooth, simultaneously transmission rod drives the interlocking of card tooth and limiting tooth, rotates hand wheel again drive control rod to rotate, control rod drives valve core plate to rotate to reach the effect of convenient and fast, time-saving and labor-saving, and then through the setting of limiting assembly avoids the valve core plate in the valve interior possibly because the flow of internal fluid causes the rotation of valve core plate and valve rod, then the flow in the valve interior will change, influence the actual flow control condition occurs.

[0004] But through the exploration of the inventor, it is found that the technical scheme still has at least the following defects: the device structure is complex, numerous parts cooperate with each other, which increases the probability of failure, and in the operation process, there is lack of intuitive operation feedback and flow regulation indication, and the operator is difficult to accurately grasp the opening degree and flow size of the valve.

[0005] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0006] In order to solve the problems of complex structure, cooperation of numerous parts, increase of failure probability, lack of intuitive operation feedback and flow regulation indication in the operation process, and difficulty for the operator to accurately grasp the opening degree and flow size of the valve, the basic idea of the technical scheme of the utility model is:

[0007] The utility model provides a valve limiting mechanism, including the valve body, the ball core is rotatably installed in the valve body, the connecting rod is connected on the ball core, the sliding rod is slidably installed on the connecting rod, the sliding rod one end installs the steering wheel, the other end is connected with the connecting ring, four clamping blocks are connected to the connecting ring bottom, the chuck is installed in the valve body, a plurality of clamping grooves are seted up on the chuck, two limit grooves are seted up on the sliding rod inner wall symmetry, the limit block is slidably installed in two limit grooves, the limit block is connected on the connecting rod, the connecting rod is provided with the installation groove between the sliding rod, the spring is installed in the installation groove.

[0008] As a preferred embodiment of the utility model, four clamping blocks are arranged in an annular array at the bottom of the connecting ring, a plurality of clamping grooves are arranged in an annular array on the chuck, and the clamping blocks are clamped in the clamping grooves.

[0009] As a preferred embodiment of the utility model, a plurality of first scale lines are formed on the top of the valve body, and each first scale line is formed above a clamping groove.

[0010] As a preferred embodiment of the utility model, a through hole is formed in the ball core.

[0011] As a preferred embodiment of the utility model, an indicating arrow is arranged on the top of the sliding rod, and the indicating arrow is aligned with the direction of the through hole in the ball core.

[0012] As a preferred embodiment of the utility model, a second scale line is formed on the sliding rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model cooperates the scale line with the indicating arrow to accurately adjust the flow, and the cooperation of the clamping block and the clamping groove ensures stable flow control, enhances the structural reliability, the limit block and the limit groove stabilize the sliding rod movement, the chamfer of the clamping groove facilitates the homing of the clamping block, the second scale line can be observed to quickly judge the valve state, and the simple structure also makes maintenance more convenient.

[0015] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In the drawings:

[0017] Figure 1 It is a three-dimensional view of a valve limiting mechanism;

[0018] Figure 2 It is a partial sectional view of a valve limiting mechanism;

[0019] Figure 3 It is a sectional view of a valve limiting mechanism;

[0020] Figure 4 A valve limiting mechanism Figure 3 Partial enlarged view of the valve body;

[0021] Figure 5 Partial parts schematic view of the valve limiting mechanism.

[0022] In the figure: 1, valve body; 2, ball core; 3, connecting rod; 4, sliding rod; 5, connecting ring; 6, clamping block; 7, chuck; 8, clamping groove; 9, limiting groove; 10, limiting block; 11, mounting groove; 12, spring; 13, rotating disc; 14, through hole; 15, indicating arrow; 16, first scale line; 17, second scale line. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings in the embodiments of the present application, and the following embodiments are used to illustrate the present application.

[0024] As Figures 1 to 5As shown, a valve limiting mechanism includes a valve body 1, a ball core 2 rotatably mounted in the valve body 1, a connecting rod 3 connected to the ball core 2, a slide rod 4 slidably mounted on the connecting rod 3, a turntable 13 mounted at one end of the slide rod 4, a connecting ring 5 connected to the other end, four locking blocks 6 connected to the bottom of the connecting ring 5, a chuck 7 mounted in the valve body 1, a plurality of locking grooves 8 opened on the chuck 7, two limiting grooves 9 symmetrically opened on the inner wall of the slide rod 4, a limiting block 10 slidably mounted in each of the two limiting grooves 9, the limiting block 10 being connected to the connecting rod 3, and an installation groove 11 provided between the connecting rod 3 and the slide rod 4, a spring 12 installed in the installation groove 11. In this configuration, valve body 1 forms the basic framework of the entire valve limiting mechanism, while ball core 2 is the core component for controlling water flow. By rotating, it changes the relative position of the through-hole 14 and the pipe, thus enabling the valve to open, close, and adjust the flow rate. Connecting rod 3 connects to ball core 2 on one hand and provides a sliding track for slide rod 4 on the other. Slide rod 4 is connected to turntable 13. Chuck 7 is installed in valve body 1, and its slot 8 engages with locking block 6 to lock and unlock ball core 2. When turntable 13 is pulled upwards, locking block 6 moves with slide rod 4, disengaging from slot 8 and allowing ball core 2 to rotate. When the ball core 2 is adjusted to the appropriate position, under the elastic force of the spring 12 and the force of gravity, the locking block 6 re-engages into the locking groove 8, firmly locking the ball core 2 to prevent accidental rotation and ensure stable operation of the valve in the set state. The limiting groove 9 is opened on the inner wall of the slide rod 4 and cooperates with the limiting block 10 to restrict the movement direction of the slide rod 4, ensuring that the slide rod 4 can only move in a specific direction. At the same time, when the slide rod 4 rotates, the connecting rod 3 and the ball core 2 are driven to rotate synchronously through this cooperation mechanism. The mounting groove 11 is located between the connecting rod 3 and the slide rod 4, providing installation space for the spring 12 and ensuring that the spring 12 can work normally.

[0025] like Figures 1 to 5 As shown, in a specific embodiment, four locking blocks 6 are arranged in a circular array at the bottom of the connecting ring 5, and several locking slots 8 are arranged in a circular array on the chuck 7, with the locking blocks 6 locked in the slots 8. In this configuration, the slots 8 are arranged in a circular array to provide different locking positions for the locking blocks 6 to adapt to different flow adjustment requirements. The specially designed chamfers of the slots 8 play a good guiding role during the reset process of the locking blocks 6, ensuring that the locking blocks 6 can return to their original positions smoothly.

[0026] like Figures 1 to 5 As shown, furthermore, the top of the valve body 1 is provided with several first scale lines 16, each of which is located above the slot 8. In this configuration, the first scale lines 16 are used to indicate the opening degree of the through hole 14 of the ball core 2, which helps the operator to intuitively understand the flow regulation of the valve and facilitates the insertion of the locking block 6 into the slot 8.

[0027] like Figures 1 to 5As shown, a through hole 14 is provided on the ball core 2. In this configuration, the through hole 14 is provided on the ball core 2. By rotating the ball core 2, the relative position of the through hole 14 and the inner channel of the valve body 1 is changed, thereby realizing the flow or cut-off of fluid and the regulation of flow rate.

[0028] like Figures 1 to 5 As shown, an indicator arrow 15 is provided on the top of the slide bar 4, and the direction of the indicator arrow 15 is consistent with that of the through hole 14 on the ball core 2. In this configuration, the operator can intuitively know the opening degree of the ball core 2 by observing the corresponding position of the indicator arrow 15 and the first scale line 16, thereby accurately adjusting the flow rate.

[0029] like Figures 1 to 5 As shown, a second scale line 17 is provided on the slide bar 4. In this configuration, the second scale line 17 is used to determine whether the card block 6 has been successfully inserted into the card slot 8. When the second scale line 17 is fully visible, it indicates that the card block 6 has been disengaged from the card slot 8; when the second scale line 17 is completely invisible, it indicates that the card block 6 has been successfully inserted into the card slot 8.

[0030] The implementation principle of a valve limiting mechanism in this embodiment is as follows: When it is necessary to open or close the valve body or adjust the flow rate, first pull the turntable 13 upward. This action will cause the slide rod 4 to move synchronously with the turntable 13. During this process, the slide rod 4 slides smoothly along the connecting rod 3, while the spring 12 is compressed and produces elastic deformation. The limiting block 10 slides smoothly in the limiting groove 9. The connecting ring 5 and the locking block 6 will also move together with the slide rod 4. During the lifting action, the operator needs to observe the second scale line 17. When the second scale line 17 is fully visible, it clearly indicates that the locking block 6 has completely broken free from the restraint of the slot 8. Once the locking block 6 is freed, the turntable 13 can be rotated. When the turntable 13 rotates, it will drive the sliding rod 4 to rotate as well. Thanks to the precise cooperation mechanism between the limiting block 10 and the limiting groove 9, the connecting rod 3 and the ball core 2 will also start to rotate under the drive of the sliding rod 4. It should be emphasized here that the direction of the indicator arrow 15 is always consistent with that of the through hole 14 on the ball core 2, and each first scale line 16 is precisely set above the slot 8. In addition, the slot 8 is specially designed with a chamfer, which can be used during the reset process of the locking block 6. The middle part plays a good guiding role, ensuring that the locking block 6 can return to its position smoothly. Therefore, the operator only needs to observe the indicator arrow 15 and roughly align it with the first scale line 16. At this time, under the action of the elastic force of the spring 12 and gravity, the locking block 6 will re-lock into the slot 8. Once the locking block 6 is successfully locked in, the ball core 2 is firmly locked. The method to judge whether the locking block 6 has been successfully locked into the slot 8 is very simple. The operator only needs to observe the second scale line 17. If the second scale line 17 is not visible at all, it undoubtedly indicates that the locking block 6 has been successfully locked in. At this time, the ball core 2 is in a stable locked state, and the operation and adjustment of the valve body are completed.

Claims

1. A valve stop mechanism comprising a valve body (1), characterised in that, The valve body (1) is provided with a ball core (2) rotatably installed therein, a connecting rod (3) connected to the ball core (2), a sliding rod (4) slidably installed on the connecting rod (3), a rotating disc (13) installed at one end of the sliding rod (4), a connecting ring (5) connected to the other end of the sliding rod (4), four clamping blocks (6) connected to the bottom of the connecting ring (5), a chuck (7) installed in the valve body (1), a plurality of clamping grooves (8) formed in the chuck (7), two limiting grooves (9) symmetrically formed in the inner wall of the sliding rod (4), a limiting block (10) slidably installed in each of the limiting grooves (9), the limiting block (10) connected to the connecting rod (3), an installation groove (11) formed between the connecting rod (3) and the sliding rod (4), and a spring (12) installed in the installation groove (11).

2. A valve stop mechanism according to claim 1, wherein The four clamping blocks (6) are arranged in an annular array at the bottom of the connecting ring (5), the plurality of clamping grooves (8) are arranged in an annular array on the chuck (7), and the clamping blocks (6) are clamped in the clamping grooves (8).

3. A valve stop mechanism according to either of claims 1 or 2, wherein The valve body (1) is provided with a plurality of first scale lines (16) formed at the top thereof, and each first scale line (16) is formed above the clamping groove (8).

4. A valve stop mechanism according to claim 1, wherein The ball core (2) is provided with a through hole (14).

5. A valve stopper mechanism according to any one of claims 1, 4, characterized in that The sliding rod (4) is provided with an indicating arrow (15) at the top thereof, and the indicating arrow (15) is in the same direction as the through hole (14) on the ball core (2).

6. A valve stop mechanism according to claim 1, wherein The sliding rod (4) is provided with a second scale line (17).

Images