CN221857650U - Adjustable needle-shaped throttle valve device - Google Patents

Abstract

The utility model belongs to the technical field of liquid conveying, and discloses an adjustable needle-shaped throttle valve device; including installing feed liquor pipe and drain pipe in the valve body both sides, feed liquor pipe and drain pipe all link up mutually with the inside of valve body, the outside of feed liquor pipe is provided with expansion mechanism, expansion mechanism is used for the not unidimensional pipeline of adaptation, expansion mechanism includes circular rubber slab, the inside of circular rubber slab and the outside size adaptation of feed liquor pipe, one side rigid coupling that circular rubber slab is close to the valve body has the fixed plate, circular rubber slab sliding connection is in the outside of feed liquor pipe. The device realizes that the diameter of the expansion mechanism can be changed by pushing the round rubber plate through the structural design of the round rubber plate and the expansion mechanism, so that the expansion mechanism can be connected with pipelines with different sizes, the convenience of connection work is improved, and the construction operation of workers is facilitated.

Description

An adjustable needle throttle valve device

Technical Field

The utility model relates to the technical field of liquid transportation, and more specifically, to an adjustable needle throttle valve device.

Background Art

The adjustable needle throttle valve is a special throttle valve with a needle-shaped valve core. The angle of the drive rod can be changed by adjusting the knob, thereby changing the position of the valve core and further changing the opening size of the needle-shaped structure to achieve the purpose of regulating the flow.

Existing adjustable needle throttle valves are mostly composed of a handle, a valve body, a pushing thread, a valve needle, a liquid inlet pipe and a liquid outlet pipe. The handle is installed at the top of the pushing thread, and the valve needle is installed at the bottom of the pushing thread. The pushing thread and the valve needle are both installed inside the valve body. The pushing thread and the valve body are threadedly connected, and the liquid inlet pipe and the liquid outlet pipe are installed on both sides of the valve body. The working principle is as follows: first, the two ends of the liquid inlet pipe and the liquid outlet pipe are connected to the pipeline through threads, and the liquid enters the inside of the liquid inlet pipe from the pipeline, and the liquid flows out of the inside of the valve body from the liquid inlet pipe, and finally flows out of the liquid outlet pipe through the valve body. Turning the handle will drive the pushing thread to move in height, and the pushing thread will then drive the valve needle to move, thereby adjusting the flow of liquid inside the valve body, thereby controlling the liquid flow rate, thereby completing the working process of the adjustable needle throttle valve.

Then, when the existing liquid inlet pipe and liquid outlet pipe are connected to the pipeline, they can only match the specified size. When the sizes of the pipelines are different, special tools such as converters are needed to connect the liquid inlet pipe and liquid outlet pipe to the pipeline, which is relatively cumbersome and brings a certain degree of inconvenience to the installation work of the staff.

Utility Model Content

In order to overcome the above-mentioned defects of the prior art, the utility model proposes an adjustable needle throttle valve device.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable needle throttle valve device, comprising a liquid inlet pipe and a liquid outlet pipe installed on both sides of a valve body, the liquid inlet pipe and the liquid outlet pipe are both connected to the interior of the valve body, an expansion mechanism is arranged on the outside of the liquid inlet pipe, the expansion mechanism is used to adapt to pipes of different sizes, the expansion mechanism comprises a circular rubber plate, the inside of the circular rubber plate is adapted to the size of the outside of the liquid inlet pipe, a fixing plate is fixedly connected to a side of the circular rubber plate close to the valve body, and the circular rubber plate is slidably connected to the outside of the liquid inlet pipe.

Furthermore, the expansion mechanism also includes three groups of arc-shaped contact plates, the outer sides of the three groups of arc-shaped contact plates are fixedly connected to multiple groups of rubber strips, the inner sides of the three groups of arc-shaped contact plates are fixedly connected to first fixing strips, the outer side of the liquid inlet pipe is fixedly connected to three groups of second fixing strips, and a pair of connecting rods are hinged between the three groups of the first fixing strips and the three groups of the second fixing strips.

Furthermore, two groups of the expansion mechanisms are provided, and the two groups of the expansion mechanisms are respectively provided on the outside of the liquid inlet pipe and the liquid outlet pipe.

Furthermore, thread grooves are provided on the outside of the liquid inlet pipe and the liquid outlet pipe, and a turntable is threadedly connected to the outside of the thread groove. Multiple groups of fixing rods are fixedly connected to the outside of the turntable, and the multiple groups of fixing rods are evenly distributed on the outside of the turntable. A transmission tube is fixedly connected to one end of the fixing plate close to the turntable, and the end of the transmission tube away from the fixing plate is rotatably connected to the turntable.

Furthermore, a locking mechanism is provided on the outer side of the turntable, the locking mechanism is used to limit the movement of the turntable, the locking mechanism comprises a locking rod and a locking groove, the locking rod is provided between a pair of fixing rods, and the locking groove is opened on the outer side of the valve body.

Furthermore, the locking mechanism also includes a connecting plate, which is arranged inside the slot, and a pair of limiting rods penetrate the inside of the connecting plate. The limiting rods are fixedly connected to the inner wall of the slot, and a spring is fixedly connected between the connecting plate and the slot.

The technical effects and advantages of the adjustable needle throttle valve device of the utility model are as follows:

Through the structural design of the circular rubber plate and the expansion mechanism, it is achieved that the diameter of the expansion mechanism can be changed by pushing the circular rubber plate, so that the expansion mechanism can be connected to pipes of different sizes, thereby improving the convenience of the connection work and facilitating the construction work of the staff.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the structure of the first fixing bar, the second fixing bar and the connecting rod in the present invention.

FIG3 is a cross-sectional schematic diagram of the circular rubber plate and the transmission tube in the present invention.

FIG. 4 is an enlarged structural schematic diagram of point A in FIG. 1 of the present invention.

FIG. 5 is a schematic diagram of the limit rod and spring structure in the utility model.

In the figure:

1. Valve body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Round rubber plate; 5. First fixing bar; 6. Second fixing bar; 7. Connecting rod; 8. Turntable; 9. Threaded groove; 10. Fixing rod; 11. Transmission pipe; 12. Clamping rod; 13. Clamping groove; 14. Connecting plate; 15. Limiting rod; 16. Spring; 40. Fixing plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 and 2, an adjustable needle throttle valve device includes a liquid inlet pipe 2 and a liquid outlet pipe 3 installed on both sides of a valve body 1, the liquid inlet pipe 2 and the liquid outlet pipe 3 are both connected to the interior of the valve body 1, an expansion mechanism is provided on the outside of the liquid inlet pipe 2, the expansion mechanism is used to adapt to pipes of different sizes, the expansion mechanism includes a circular rubber plate 4, the inside of the circular rubber plate 4 is adapted to the size of the outside of the liquid inlet pipe 2, a fixing plate 40 is fixedly connected to the side of the circular rubber plate 4 close to the valve body 1, and the circular rubber plate 4 is slidably connected to the outside of the liquid inlet pipe 2.

The two ends of the existing liquid inlet pipe 2 and the liquid outlet pipe 3 are connected to the pipeline by threads, the liquid enters the interior of the liquid inlet pipe 2 from the pipeline, the liquid then flows out of the interior of the valve body 1 from the liquid inlet pipe 2, and finally flows out of the liquid outlet pipe 3 through the valve body. Turning the handle will drive the advancement thread to move in height, and the advancement thread will then drive the valve needle to move, adjust the flow of liquid inside the valve body, thereby controlling the liquid flow rate. Then, the existing liquid inlet pipe 2 and the liquid outlet pipe 3 can only match the specified size when connected to the pipeline. When the sizes of the pipelines are different, it is necessary to use special tools such as converters to connect the liquid inlet pipe 2 and the liquid outlet pipe 3 to the pipeline, which is relatively cumbersome and brings a certain degree of inconvenience to the installation work of the staff. In order to solve the above problems, The above problem is solved. When it is necessary to adjust according to the size of the pipeline, the circular rubber plate 4 is moved toward the expansion mechanism by moving the fixing plate. The circular rubber plate 4 will drive the expansion mechanism to move outward. The moving distance depends on the actual situation. At this time, the outer edge of the expansion mechanism is in contact with the inner wall of the pipeline. It should be noted that when the pipeline is connected to the expansion mechanism, the pipeline needs to fit tightly with the side of the circular rubber plate 4 close to the expansion mechanism. The circular rubber plate 4 is made of rubber, which ensures that when the pipeline is fitted with the circular rubber plate 4, the liquid will not flow out along the connection between the circular rubber plate 4 and the pipeline, and the fixing plate 40 supports one side of the circular rubber plate 4 to ensure the sealing during the connection.

As shown in Figures 1 and 2, the expansion mechanism also includes three groups of arc-shaped contact plates, the outer sides of the three groups of arc-shaped contact plates are fixedly connected to multiple groups of rubber strips, the inner sides of the three groups of arc-shaped contact plates are fixedly connected to first fixing strips 5, the outer side of the liquid inlet pipe 2 is fixedly connected to three groups of second fixing strips 6, and a pair of connecting rods 7 are hinged between the three groups of the first fixing strips 5 and the three groups of the second fixing strips 6.

When the circular rubber plate 4 is pushed toward the arc-shaped resistance plate by the fixing plate 40, the circular rubber plate 4 will squeeze the arc-shaped resistance plate, and the arc-shaped resistance plate will be subjected to force to drive the first fixing strip 5 to move. Since the first fixing strip 5 is restricted by the connecting rod 7, the three groups of arc-shaped resistance plates will fit the circular rubber plate 4 and expand in the direction away from the liquid inlet pipe 2. When the circular rubber plate 4 moves to the inner wall of the resistance pipe and stops, the movement of the three groups of arc-shaped resistance plates ends. At this time, the inner wall of the pipe is limited by the arc-shaped resistance plate and cannot move. Multiple groups of rubber strips can also increase the friction between the arc-shaped resistance plate and the inner wall of the pipe. The top end of the pipe is sealed against the circular rubber plate 4, so that the liquid inlet pipe 2 can be installed to fit pipes of different sizes.

As shown in FIG. 1 and FIG. 2 , two groups of the expansion mechanisms are provided, and the two groups of the expansion mechanisms are respectively provided on the outside of the liquid inlet pipe 2 and the liquid outlet pipe 3 .

Two groups of expansion mechanisms are provided, so that both the liquid inlet pipe 2 and the liquid outlet pipe 3 can be adapted to pipes of different sizes, thereby improving the practicability of the device.

As shown in Figures 3 and 4, the outer sides of the liquid inlet pipe 2 and the liquid outlet pipe 3 are both provided with a threaded groove 9, and the outer side of the threaded groove 9 is threadedly connected to a turntable 8. The outer side of the turntable 8 is fixedly connected with multiple groups of fixing rods 10, and the multiple groups of fixing rods 10 are evenly distributed on the outer side of the turntable 8. The end of the fixed plate 40 close to the turntable 8 is fixedly connected with a transmission tube 11, and the end of the transmission tube 11 away from the fixed plate 40 is rotatably connected to the turntable 8.

In order to facilitate the movement of the circular rubber plate 4, when this embodiment is used, the fixing rod 10 is rotated, and the fixing rod 10 drives the turntable 8 to rotate. Since the turntable 8 and the thread groove 9 are threadedly connected, when the turntable 8 rotates, it moves along the thread groove 9. The turntable 8 moves and then squeezes the fixing plate 40 through the transmission tube 11, and the fixing plate 40 drives the circular rubber plate 4 to move.

As shown in Figures 1 and 4, a locking mechanism is provided on the outer side of the turntable 8, and the locking mechanism is used to limit the movement of the turntable 8. The locking mechanism includes a locking rod 12 and a locking groove 13. The locking rod 12 is arranged between a pair of fixed rods 10, and the locking groove 13 is opened on the outer side of the valve body 1.

In order to realize the function of limiting the movement of the fixing rod 10, when the fixing rod 10 needs to be rotated, the locking mechanism is first pushed to move toward the inside of the locking groove 13. The movement of the locking mechanism drives the locking rod 12 to disengage from the locking between the pair of fixing rods 10. Only then can the fixing rod 10 be rotated. When the rotation of the fixing rod 10 is completed, the locking mechanism is released, and the locking mechanism instantly drives the locking rod 12 to reset and lock between the pair of fixing rods 10 again. The fixing rod 10 cannot move, which prevents the fixing rod 10 from driving the turntable 8 to rotate when shaking, thereby improving the stability of the device.

As shown in Figures 1 and 4, the locking mechanism also includes a connecting plate 14, which is arranged inside the slot 13. A pair of limiting rods 15 pass through the connecting plate 14. The limiting rods 15 are fixedly connected to the inner wall of the slot 13, and a spring 16 is fixedly connected between the connecting plate 14 and the slot 13.

When the connecting plate 14 is pushed to move toward the inside of the card slot 13, the connecting plate 14 will squeeze the spring 16, causing the spring 16 to deform and generate elastic potential energy. The movement of the connecting plate 14 will also drive the card rod 12 to disengage from between the pair of fixed rods 10, and the fixed rod 10 can move at this time. When the connecting plate 14 is released, the force on the spring 16 ends, and the elastic potential energy is released instantly, pushing the connecting plate 14 to move along the limit rod 15. The movement of the connecting plate 14 further drives the card rod 12 to be engaged between the pair of fixed rods 10, and the fixed rod 10 cannot move further.

Working principle: Both ends of the existing liquid inlet pipe 2 and liquid outlet pipe 3 are connected to the pipeline through threads, and the liquid enters the interior of the liquid inlet pipe 2 from the pipeline, and the liquid then flows out of the interior of the valve body 1 from the liquid inlet pipe 2, and finally flows out of the liquid outlet pipe 3 through the valve body. Turning the handle will drive the advancement thread to move in height, and the advancement thread will then drive the valve needle to move, adjusting the flow of liquid inside the valve body, thereby controlling the liquid flow rate. Then, the existing liquid inlet pipe 2 and liquid outlet pipe 3 can only match the specified size when connected to the pipeline. When the sizes of the pipelines are different, it is necessary to use special tools such as converters to connect the liquid inlet pipe 2 and liquid outlet pipe 3 to the pipeline, which is relatively cumbersome and brings a certain degree of inconvenience to the installation work of the staff. In order to solve the above problem, when it is necessary to adjust according to the size of the pipeline, the circular rubber plate 4 is moved toward the direction of the expansion mechanism by moving the fixed plate, and the circular rubber plate 4 will drive the expansion mechanism to move outward. The moving distance depends on the actual situation. At this time, the outer side of the expansion mechanism contacts the inner wall of the pipe. It should be noted that when the pipe is connected to the expansion mechanism, the pipe needs to fit tightly with the side of the circular rubber plate 4 close to the expansion mechanism. The circular rubber plate 4 is made of rubber material, which ensures that when the pipe and the circular rubber plate 4 are in contact, the liquid will not flow out along the connection between the circular rubber plate 4 and the pipe, and the fixing plate 40 supports one side of the circular rubber plate 4 to ensure the sealing during the connection. When the circular rubber plate 4 is pushed toward the arc-shaped contact plate by the fixing plate 40, the circular rubber plate 4 will squeeze the arc-shaped contact plate, and the arc-shaped contact plate will be forced to move the first fixing bar 5. Since the first fixing bar 5 is restricted by the connecting rod 7, the three groups of arc-shaped contact plates will fit the circular rubber plate 4 and expand in the direction away from the liquid inlet pipe 2. When the circular rubber plate 4 moves to contact the inner wall of the pipe, it stops. , the three groups of arc-shaped resistance plates move and then end. At this time, the inner wall of the pipe is limited by the arc-shaped resistance plates and cannot move. Multiple groups of rubber strips can also increase the friction between the arc-shaped resistance plates and the inner wall of the pipe, and the top of the pipe contacts and seals with the circular rubber plate 4, so that the liquid inlet pipe 2 can be adapted to pipes of different sizes for installation. Two groups of expansion mechanisms are provided, so that the liquid inlet pipe 2 and the liquid outlet pipe 3 can be adapted to pipes of different sizes, thereby improving the practicality of the device. In order to facilitate the movement of the circular rubber plate 4, when this embodiment is in use, the fixing rod 10 is rotated, and the fixing rod 10 will drive the turntable 8 to rotate. Since the turntable 8 and the threaded groove 9 are threadedly connected, when the turntable 8 rotates, it will move along the threaded groove 9. The turntable 8 moves and then squeezes the fixing plate 40 through the transmission tube 11, and the fixing plate 40 then drives the circular rubber plate 4 to move. In order to realize the function of limiting the movement of the fixing rod 10, when it is necessary to rotate the fixing rod 10, The spring 16 is then released, and the spring 16 is forced to stop, and the spring 16 is released instantly, pushing the connecting plate 14 to move along the limit rod 15, and the connecting plate 14 moves, thereby driving the connecting plate 14 to be engaged between the pair of fixing rods 10, and the fixing rod 10 can no longer move.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (6)

1. An adjustable needle throttle valve device, comprising a liquid inlet pipe (2) and a liquid outlet pipe (3) installed on both sides of a valve body (1), wherein the liquid inlet pipe (2) and the liquid outlet pipe (3) are both connected to the interior of the valve body (1), and characterized in that: an expansion mechanism is arranged on the outer side of the liquid inlet pipe (2), and the expansion mechanism is used to adapt to pipes of different sizes, and the expansion mechanism comprises a circular rubber plate (4), the inner side of the circular rubber plate (4) is adapted to the size of the outer side of the liquid inlet pipe (2), a fixing plate (40) is fixedly connected to the side of the circular rubber plate (4) close to the valve body (1), and the circular rubber plate (4) is slidably connected to the outer side of the liquid inlet pipe (2). 2. The adjustable needle throttle valve device according to claim 1 is characterized in that the expansion mechanism also includes three groups of arc-shaped contact plates, the outer sides of the three groups of arc-shaped contact plates are fixedly connected to multiple groups of rubber strips, the inner sides of the three groups of arc-shaped contact plates are fixedly connected to first fixing strips (5), the outer side of the liquid inlet pipe (2) is fixedly connected to three groups of second fixing strips (6), and a pair of connecting rods (7) are hinged between the three groups of the first fixing strips (5) and the three groups of the second fixing strips (6). 3. The adjustable needle throttle valve device according to claim 2 is characterized in that the expansion mechanism is provided in two groups, and the two groups of expansion mechanisms are respectively arranged on the outside of the liquid inlet pipe (2) and the liquid outlet pipe (3). 4. The adjustable needle throttle valve device according to claim 3 is characterized in that the outer sides of the liquid inlet pipe (2) and the liquid outlet pipe (3) are both provided with a threaded groove (9), the outer side of the threaded groove (9) is threadedly connected to a turntable (8), the outer side of the turntable (8) is fixedly connected with multiple groups of fixing rods (10), and the multiple groups of fixing rods (10) are evenly distributed on the outer side of the turntable (8), and the end of the fixing plate (40) close to the turntable (8) is fixedly connected with a transmission tube (11), and the end of the transmission tube (11) away from the fixing plate (40) is rotatably connected to the turntable (8). 5. The adjustable needle throttle valve device according to claim 4 is characterized in that a locking mechanism is arranged on the outer side of the turntable (8), and the locking mechanism is used to limit the movement of the turntable (8), and the locking mechanism includes a locking rod (12) and a locking groove (13), and the locking rod (12) is arranged between a pair of fixed rods (10), and the locking groove (13) is opened on the outer side of the valve body (1). 6. The adjustable needle throttle valve device according to claim 5 is characterized in that the locking mechanism also includes a connecting plate (14), the connecting plate (14) is arranged inside the slot (13), a pair of limiting rods (15) pass through the inside of the connecting plate (14), the limiting rods (15) are fixedly connected to the inner wall of the slot (13), and a spring (16) is fixedly connected between the connecting plate (14) and the slot (13).