Stop valve

Abstract

The utility model discloses a stop valve which comprises a valve body, a mounting block is arranged on the valve body through a mounting groove, a rotating handle is arranged on the mounting block, a synchronous handle is arranged in the rotating handle, the rotating handle and the synchronous handle are matched through a coincidence mechanism, a movable cavity is formed in the mounting block, and the synchronous handle is arranged in the movable cavity. A movable block is arranged in the movable cavity through a first elastic mechanism, the synchronous handle is connected with the movable block through a dragging rod, and a plurality of positioning rods are arranged on the mounting block in a sliding and penetrating mode. Through the arrangement of the mounting block, the rotating handle, the positioning block, the synchronous handle and the movable block, the mounting block can rotate relative to the valve body by means of the components, opening and closing operation is achieved by matching with rotation of the control panel, the synchronous handle can rotate only after being lifted, the function of preventing mistaken opening is achieved, overall operation is convenient, and the device is simple in structure and convenient to use. And the practicability of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a stop valve. Background Art

[0002] The stop valve is a commonly used valve that can be used to cut off or adjust the gas flow in the pipeline. Its working principle is to control the passage or cutoff of gas through the opening and closing components. When the valve stem rotates, the control component will rotate accordingly, thereby changing the channel size between the control component and the valve body, thereby achieving control of the gas flow.

[0003] The problem with the stop valve is that it is easy to be opened by accident, so corresponding measures are provided to reduce the probability of accidental opening. Common measures are: 1. Labels and warnings: set obvious labels or warning signs around the stop valve to remind people not to touch it by mistake. 2. Protective cover: install a protective cover on the stop valve to prevent unnecessary contact. 3. Locking device: use a lock or other locking device to lock the stop valve in the closed position, and only authorized personnel can unlock and operate it. 4. Training and education: train relevant personnel to let them understand the importance of the stop valve and the correct operation method to reduce the possibility of accidental touch. Among them, labels and warnings, training and education cannot fundamentally solve the problem of accidental touch. The protective cover takes up a large space, and the locking device cannot be opened when the authorized personnel are not there. In summary, it still needs to be improved, so a stop valve is proposed here. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and provides a stop valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stop valve comprises a valve body, a mounting block is provided on the valve body through a mounting groove, a rotating handle is provided on the mounting block, a synchronous handle is provided inside the rotating handle, the rotating handle and the synchronous handle cooperate with each other through an overlap mechanism, an active cavity is provided inside the mounting block, a movable block is provided in the active cavity through a first elastic mechanism, the synchronous handle is connected to the movable block through a drag rod, a plurality of positioning rods are slidably penetrated on the mounting block, a plurality of positioning holes are provided on the arc-shaped inner wall of the mounting groove, a plurality of the positioning rods are connected to the movable block through a contact mechanism, a sliding rod is provided on the plurality of positioning rods through an opening, a fixing rod is slidably sleeved on the sliding rod through a second elastic mechanism, and both ends of the fixing rod are fixedly connected to the upper and lower inner walls of the active cavity respectively.

[0007] Preferably, the overlap mechanism comprises an overlap groove provided on the rotating handle and cooperating with the synchronous handle, the rotating handle is provided with a rotating hole penetrating the overlap groove, and the synchronous handle is provided with an overlap hole.

[0008] Preferably, the first elastic mechanism comprises a vertical spring arranged in the movable cavity, and two ends of the vertical spring are elastically connected to the inner wall of the movable cavity and the outer wall of the movable block respectively.

[0009] Preferably, the contact mechanism comprises a contact wheel disposed in the movable cavity and in contact with the movable block, and the contact wheel is rotatably connected to the positioning rod.

[0010] Preferably, the elastic mechanism comprises a transverse spring sleeved on the outside of the sliding rod, and two ends of the transverse spring are elastically connected to the outer wall of the fixing rod and the inner wall of the opening respectively.

[0011] Preferably, a stabilizing rod is fixedly provided on the bottom wall of the movable cavity, and a stabilizing groove corresponding to the stabilizing rod is provided on the bottom wall of the movable block.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting the mounting block, rotating handle, positioning block, synchronous handle and movable block, the mounting block can be rotated relative to the valve body with the help of the above components, and the opening and closing operations can be realized by cooperating with the rotation of the control panel. The valve can only be rotated after the synchronous handle is lifted, which has the function of preventing accidental opening. The overall operation is convenient and the device structure is simple, which ensures the practicability of the device.

[0014] 2. By arranging a contact wheel and a stabilizing rod on the end of the positioning rod, the smoothness of the horizontal movement of the positioning rod is ensured during the lifting of the movable block, and the stability of the lifting of the movable block in the movable cavity is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a stop valve proposed by the utility model;

[0016] Figure 2 A schematic diagram of the vertical anatomical structure of the mounting block and other components;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at B.

[0019] In the figure: 1 valve body, 2 mounting groove, 3 mounting block, 4 rotating handle, 5 synchronous handle, 6 overlap hole, 7 control board, 8 drag rod, 9 overlap groove, 10 rotating hole, 11 movable cavity, 12 stabilizing rod, 13 movable block, 14 vertical spring, 15 positioning rod, 16 contact wheel, 17 opening, 18 sliding rod, 19 fixing rod, 20 transverse spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A stop valve comprises a valve body 1, a mounting block 3 is arranged on the valve body 1 through a mounting groove 2, and a control board 7 connected to the mounting block 3 is also arranged in the valve body 1. The opening and closing operation of the valve body 1 is realized by rotating the control board 7.

[0022] A rotating handle 4 is provided on the mounting block 3, a synchronous handle 5 is provided inside the rotating handle 4, the rotating handle 4 and the synchronous handle 5 cooperate with each other through an overlap mechanism, an active cavity 11 is provided inside the mounting block 3, and an active block 13 is provided in the active cavity 11 through a first elastic mechanism. As shown in the figure, the vertical section of the active block 13 is trapezoidal, and its outer wall is in an inclined state.

[0023] The synchronous handle 5 is connected to the movable block 13 through the drag rod 8. A plurality of positioning rods 15 are slidably penetrated on the mounting block 3. A plurality of positioning holes are provided on the arc-shaped inner wall of the mounting groove 2. As shown in the figure, there are four positioning rods 15, and four or more positioning holes can be provided to achieve full opening or closing, or to achieve multi-angle opening of the control panel 7, so as to control the gas flow. The specific method can be determined according to the actual situation.

[0024] The plurality of positioning rods 15 are connected to the movable block 13 through a contact mechanism, and a sliding rod 18 is provided on the plurality of positioning rods 15 through an opening 17. A fixing rod 19 is provided on the sliding rod 18 through a second elastic mechanism sliding sleeve, and both ends of the fixing rod 19 are fixedly connected to the upper and lower inner walls of the movable cavity 11 respectively.

[0025] The overlap mechanism includes an overlap groove 9 arranged on the rotating handle 4 and cooperating with the synchronous handle 5. The rotating handle 4 is provided with a rotating hole 10 that passes through the overlap groove 9, and the synchronous handle 5 is provided with an overlap hole 6. When the synchronous handle 5 is in the overlap groove 9 and the rotating hole 10 overlaps with the overlap hole 6, the rotating handle 4 can be driven to rotate by passing through the round rod, thereby driving the control board 7 to rotate by means of the mounting block 3.

[0026] The first elastic mechanism includes a vertical spring 14 disposed in the active cavity 11, and the two ends of the vertical spring 14 are elastically connected to the inner wall of the active cavity 11 and the outer wall of the active block 13, respectively. The vertical spring 14 ensures that the active block 13 is stable in the position of the active cavity 11. Figure 2 The movable block 13 is in an initial state, and is closer to the bottom wall of the movable chamber 11 .

[0027] The contact mechanism includes a contact wheel 16 arranged in the movable cavity 11 and in contact with the movable block 13. The contact wheel 16 is rotatably connected to the positioning rod 15. When the movable block 13 is raised and lowered in the movable cavity 11, the contact wheel 16 can be used to achieve horizontal movement of the positioning rod 15, thereby realizing insertion and disengagement operations with the positioning hole.

[0028] The elastic mechanism includes a transverse spring 20 sleeved on the outside of the sliding rod 18, and the two ends of the transverse spring 20 are elastically connected to the outer wall of the fixed rod 19 and the inner wall of the opening 17 respectively. During the rising process of the movable block 13, the elastic potential energy provided by the transverse spring 20 can drive the positioning rod 15 to move close to the outer wall of the movable block 13 and the other end to disengage from the positioning hole.

[0029] A stabilizing rod 12 is fixedly provided on the bottom wall of the movable chamber 11 , and a stabilizing groove corresponding to the stabilizing rod 12 is provided on the bottom wall of the movable block 13 . The stabilizing rod 12 and the stabilizing groove ensure the stability of the movable block 13 during the lifting process in the movable chamber 11 .

[0030] When the utility model is used, Figure 2 As shown, in this state, the control plate 7 realizes the closing operation of the valve body 1. When the control plate 7 needs to be rotated to open the valve body 1, the synchronous handle 5 is lifted to enter the overlap groove 9, and the rotating hole 10 overlaps with the overlap hole 6. At the same time, the synchronous handle 5 drives the movable block 13 to rise in the movable cavity 11 with the help of the drag rod 8. Due to the inclined setting of the outer wall of the movable block 13, combined with the reset and contraction trend of the transverse spring 20, the positioning rod 15 and the contact wheel 16 can be driven to move horizontally to ensure that the contact wheel 16 is always in contact with the outer wall of the movable block 13. At this time, the positioning rod 15 will be in contact with the positioning rod on the arc-shaped inner wall of the mounting groove 2 The hole is disengaged, and the fixed installation of the mounting block 3 in the mounting groove 2 is immediately released. The round rod is used to insert it into the overlapping hole 6 and the rotating hole 10, and then the handle 4 is rotated with the help of the round rod to drive the mounting block 3 to rotate in the mounting groove 2. After it rotates 90 degrees, the round rod is pulled out. At this time, under the action of the vertical spring 14 (the elastic potential energy of the vertical spring 14 is greater than the horizontal spring 20), the movable block 13 descends and resets, and the positioning rod 15 moves and resets, and is reinserted into the positioning hole on the arc-shaped inner wall of the mounting groove 2, so that the mounting block 3 and the control board 7 and other components are rotated and then fixed. At this time, the valve body 1 is in the open state.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stop valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a mounting block (3) through a mounting groove (2), a rotating handle (4) is provided on the mounting block (3), a synchronous handle (5) is provided inside the rotating handle (4), the rotating handle (4) and the synchronous handle (5) are matched through a coincidence mechanism, an active cavity (11) is provided inside the mounting block (3), a movable block (13) is provided in the movable cavity (11) through a first elastic mechanism, the synchronous handle (5) is connected to the movable block (13) through a drag rod (8), a plurality of positioning rods (15) are slidably penetrated on the mounting block (3), a plurality of positioning holes are provided on the arc-shaped inner wall of the mounting groove (2), the plurality of positioning rods (15) are connected to the movable block (13) through a contact mechanism, a sliding rod (18) is provided on the plurality of positioning rods (15) through an opening (17), a fixing rod (19) is slidably sleeved on the fixing rod (18) through a second elastic mechanism, and two ends of the fixing rod (19) are respectively fixedly connected to the upper and lower inner walls of the active cavity (11).

2. A stop valve according to claim 1, characterized in that: The overlap mechanism comprises an overlap groove (9) provided on the rotating handle (4) and cooperating with the synchronous handle (5); the rotating handle (4) is provided with a rotating hole (10) penetrating the overlap groove (9); and the synchronous handle (5) is provided with an overlap hole (6).

3. A stop valve according to claim 2, characterized in that: The first elastic mechanism comprises a vertical spring (14) arranged in the movable chamber (11), and two ends of the vertical spring (14) are elastically connected to the inner wall of the movable chamber (11) and the outer wall of the movable block (13) respectively.

4. A stop valve according to claim 3, characterized in that: The contact mechanism comprises a contact wheel (16) disposed in the movable cavity (11) and in contact with the movable block (13); the contact wheel (16) is rotatably connected to the positioning rod (15).

5. A stop valve according to claim 4, characterized in that: The elastic mechanism comprises a transverse spring (20) sleeved on the outside of the slide rod (18), and two ends of the transverse spring (20) are elastically connected to the outer wall of the fixing rod (19) and the inner wall of the opening (17) respectively.

6. A stop valve according to claim 5, characterized in that: A stabilizing rod (12) is fixedly provided on the inner bottom wall of the movable cavity (11), and a stabilizing groove corresponding to the stabilizing rod (12) is provided on the bottom wall of the movable block (13).

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