CN204358230U - A kind of can thickness adjust adjustment mechanism for valve - Google Patents

Abstract

The utility model discloses a valve adjusting device capable of coarse and fine adjustment, which comprises an outer shell, a hand wheel, a hollow round rod I, a round rod I, a round rod II and a hollow round rod II; In the compressed state, the gear Ⅰ and gear Ⅱ are completely separated, the prism at the upper end of the round rod Ⅰ is located in the prism hole Ⅱ, and the prism at the lower end of the handwheel and the prism at the upper end of the hollow round rod Ⅱ are matched by the prism at the same time; When the spring is in a natural state, the gear Ⅰ and the gear Ⅱ are fully matched, and the prisms at the upper end of the round rod Ⅰ are all located in the circular holes, which still ensures that the prisms at the lower end of the handwheel and the prisms at the upper end of the hollow round rod Ⅱ are matched at the same time. After the valve adjusting device is connected with the valve adjusting rod, the coarse or fine adjustment of the valve can be realized only by pressing down or pressing down the hand wheel, and the adjustment is convenient.

Description

A coarse and fine adjustment valve adjustment device

technical field

The utility model belongs to the field of valves, in particular to a valve adjusting device capable of coarse and fine adjustment.

Background technique

In some pipelines, the flow rate is often controlled by adjusting the valve. Generally, the ordinary valve is manually operated, and the adjustment rod is driven by the hand wheel. The method of rough adjustment (fast adjustment) and then fine adjustment (slow adjustment) Adjustment; and in the fine adjustment, not only the efficiency is low, the adjustment is inconvenient, and often encounter the situation of excessive adjustment, but also call back, which is troublesome to operate.

Utility model content

The purpose of the utility model is to provide a high-efficiency, easy-to-adjust valve adjustment device that can be coarsely and finely adjusted, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A valve adjustment device capable of coarse and fine adjustment, including an outer shell, a hand wheel, a hollow round rod I, a round rod I, a round rod II and a hollow round rod II; the hollow round rod I is installed in the outer shell through a thread I, and the hollow The upper part of the central hole of the round rod I is a ribbed hole I, and the lower part is a circular hole circumscribed with the ribbed hole I, and the lower end of the hand wheel is a prism matching the ribbed hole I, and the hollow round rod II is located in the hollow round rod I. And the upper end is also a prism matching with the prismatic hole I; the upper end of the central hole of the hollow round rod II is a prism hole II, and the lower part is also a round hole circumscribing the prismatic hole II, and the round rod I is located in the hollow round rod II, And the upper end is a prism matching with the prism hole II; the lower end of the hollow round rod I is provided with a gear II outside, the lower end of the round rod I is provided with a thread II, and a return spring is arranged between the top of the thread II and the gear II, and the thread The bottom of II is connected with the valve adjustment rod; the round rod II is arranged parallel to the round rod I, and is rotatably installed in the outer casing. Thread III; the upper end of the round rod II is provided with a gear I fixedly connected with it; when the hand wheel is pressed down, the return spring is in a compressed state, the gear I and the gear II are completely separated, and the prism at the upper end of the round rod I is located in the rib hole II. Hole Ⅰ cooperates with the prism at the lower end of the handwheel and the prism at the upper end of the hollow round rod II at the same time; if the handwheel is not pressed down, when the return spring is in the natural state, the gear Ⅰ and gear Ⅱ are fully matched, and the prisms at the upper end of the round rod Ⅰ are all located in the round hole Inside, it is still ensured that the prismatic hole I cooperates with the prism at the lower end of the handwheel and the prism at the upper end of the hollow rod II at the same time.

As a further solution of the present invention: the height of the rib hole I is greater than the thickness of the gear I, and the length of the return spring in the natural state is greater than the height of the rib hole II.

Compared with the prior art, the beneficial effect of the utility model is that: after the valve adjusting device is connected with the valve adjusting rod, the coarse or fine adjustment of the valve can be realized only by pressing down or pressing down the hand wheel, and the adjustment is convenient.

Description of drawings

Fig. 1 is a schematic structural diagram of a valve regulating device capable of coarse and fine adjustment.

In the figure: 1-outer shell, 2-hand wheel, 3-prismatic hole Ⅰ, 4-thread Ⅰ, 5-hollow round rod Ⅰ, 6-prismatic hole Ⅱ, 7-round hole, 8-gear Ⅰ, 9-gear Ⅱ, 10-thread II, 11-thread III, 12-cylinder, 13-round rod I, 14-round rod II, 15-hollow round rod II.

Detailed ways

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

Please refer to Fig. 1, a valve adjustment device that can be coarsely and finely adjusted, including an outer shell 1, a hand wheel 2, a hollow round rod I5, a round rod I13, a round rod II14 and a hollow round rod II15; the hollow round rod I5 is threaded Ⅰ4 is installed in the outer casing 1, the upper part of the central hole of the hollow round rod Ⅰ5 is a prismatic hole Ⅰ3, the lower part is a round hole circumscribing the prismatic hole Ⅰ3, the lower end of the hand wheel 2 is a prism matching the prismatic hole Ⅰ3, the hollow The round rod II15 is located in the hollow round rod I5, and the upper end is also a prism matching the ribbed hole I3; the upper end of the central hole of the hollow round rod II15 is the ribbed hole II6, and the lower part is also a circular hole 7 circumscribing the ribbed hole II6, so The round rod I13 is located in the hollow round rod II15, and the upper end is a prism matching the prism hole II6; the lower end of the hollow round rod I5 is provided with a gear II9 outside, and the lower end of the round rod I13 is provided with a thread II10, and the top of the thread II10 There is a return spring between the gear II9 (easy to understand, so it is not shown in the figure), and the bottom of the thread II10 is connected to the valve adjustment rod; the round rod II14 is arranged in parallel with the round rod I13, and is rotatably installed in the outer casing 1 , the lower end of the round rod II14 is provided with a cylinder 12 fixedly connected with it, and the cylinder 12 is provided with a thread III11 cooperating with the thread II10; the upper end of the round rod II14 is provided with a gear I8 fixedly connected with it; the height of the rib hole I3 is b It is greater than the thickness of the gear I8, and the length of the return spring is greater than the height a of the rib hole II6 when it is in a natural state.

The working principle of the utility model is:

When the handwheel 2 is pressed down, the return spring is in a compressed state, the gear I8 is completely separated from the gear II9, the prism at the upper end of the round rod I13 is located in the rib hole II6, and the rib hole I3 is simultaneously connected with the prism at the lower end of the handwheel 2 and the hollow round rod II15 The prism at the upper end cooperates; at this time, rotating the hand wheel 2 drives the hollow round rod I5 to rotate, the hollow round rod I5 drives the hollow round rod II15 to rotate, and the hollow round rod II15 drives the round rod I13 to rotate, because the lead of the thread II10 is smaller than the thread I4 The lead, so the round rod Ⅰ13 drives the valve adjustment rod to rotate to realize the coarse adjustment of the valve.

Without pressing down on the handwheel 2, when the return spring is in a natural state, the gear I8 and the gear II9 are fully matched, and the prisms at the upper end of the round rod I13 are all located in the round hole 7, and it is still guaranteed that the prisms at the lower end of the handwheel 2 and the hollow prism at the same time. The prism at the upper end of the round rod II15 cooperates; at this time, rotating the hand wheel 2 drives the rotation of the hollow round rod I5, and the hollow round rod I5 drives the rotation of the hollow round rod II15, but at this time, the hollow round rod II15 does not directly drive the rotation of the round rod I13, but passes through The gear II9 drives the gear I8 to rotate, and then drives the round rod I13 to rotate through the threads III11 and II10; since the lead of the thread II10 is smaller than the lead of the thread I4, the round rod I13 drives the valve adjustment rod to realize the fine adjustment of the valve.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation, and within the knowledge of those of ordinary skill in the art, it can also be made without departing from the purpose of this patent. Variations.

Claims (3)

1. A valve adjustment device that can be finely adjusted, including an outer shell (1), a hand wheel (2), a hollow round rod I (5), a round rod I (13), a round rod II (14) and a hollow round rod II (15); it is characterized in that the hollow round rod I (5) is installed in the outer casing (1) through the thread I (4), and the upper part of the center hole of the hollow round rod I (5) is a ribbed hole I (3 ), the lower part is a circular hole circumscribing the prismatic hole Ⅰ (3), the lower end of the handwheel (2) is a prism matching the prismatic hole Ⅰ (3), and the hollow round rod II ( 15 ) is located on the hollow round rod Ⅰ (5), and the upper end is also a prism matching with the prismatic hole I (3); the upper end of the center hole of the hollow round rod II (15) is the prismatic hole II (6), and the lower part is also the circumscribed prismatic hole II (6 ), the round rod I (13) is located in the hollow round rod II (15), and the upper end is a prism matching the prismatic hole II (6); the lower end of the hollow round rod I (5) Gear II (9) is provided on the outside, thread II (10) is provided at the lower end of the round rod I (13), and a return spring is provided between the top of thread II (10) and gear II (9), and thread II (10) ) bottom is connected with the valve adjustment rod; the round rod II (14) is arranged in parallel with the round rod I (13), and is rotatably installed in the outer shell (1), and the lower end of the round rod II (14) is provided with a fixed connection Cylinder (12), cylinder (12) is provided with screw thread III (11) that cooperates with screw thread II (10); the upper end of round rod II (14) is provided with gear I (8) that is fixedly connected with it; When turning the wheel (2), the return spring is in a compressed state, the gear I (8) is completely separated from the gear II (9), the prism at the upper end of the round rod I (13) is located in the rib hole II (6), and the rib hole I (3 ) at the same time cooperate with the prism at the lower end of the handwheel (2) and the prism at the upper end of the hollow rod II (15); if the handwheel (2) is not pressed down, when the return spring is in the natural state, the gear I (8) and the gear II (9) ) are fully matched, and all the prisms on the upper end of the round rod I (13) are located in the round hole (7), still ensuring that the prisms on the lower end of the handwheel (2) and the upper end of the hollow round rod II (15) Prism fit. 2. The valve adjustment device capable of coarse and fine adjustment according to claim 1, characterized in that, the height (b) of the prismatic hole I (3) is greater than the thickness of the gear I (8). 3. The coarsely and finely adjustable valve adjusting device according to claim 1 or 2, characterized in that the length of the return spring in the natural state is greater than the height (a) of the rib hole II (6).