Reversing type pneumatic valve

Abstract

The utility model discloses a reversing type pneumatic valve which comprises a pneumatic actuator, a connecting nut is installed on the lower surface of the pneumatic actuator, a reversing valve is installed below the connecting nut, a flange plate is installed on the reversing valve, a fixed clamping block is installed on the flange plate, a bolt hole is formed in the fixed clamping block, and the bolt hole is connected with the pneumatic actuator. Springs are installed on the upper surfaces and the lower surfaces of the fixing clamping blocks, spring clamping blocks are installed on the springs, a plurality of holes are formed in the flange plate, the holes are evenly distributed in the flange plate, the two fixing clamping blocks are distributed on the flange plate in an axial symmetry mode, and the inner surfaces of the fixing clamping blocks are designed to be cambered surfaces. The fixed clamping block, the fixed clamping block and the connecting rod are arranged, the situation that the connecting nut and the reversing valve are prone to loosening can be prevented, the overall stability is improved, and meanwhile when loosening occurs, an alarm can be given out in time, and loosening aggravation is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic valve device field, especially switching type pneumatic valve. BACKGROUND

[0002] Pneumatic switching valve is a kind of equipment for controlling gas flow, also called switching type pneumatic valve, mainly used for gas path conversion in the automatic control system in industrial production to realize the automatic operation of machine or system, and pneumatic switching valve can change the gas flow from one pipeline to another, thereby controlling the action of mechanical device;

[0003] Pneumatic switching valve is composed of pneumatic actuator and switching valve, and is usually divided into straight-through single seat type and straight-through double seat type, the latter has the characteristics of large flow capacity, small unbalanced force and stable operation, so it is usually especially suitable for occasions with large flow, high pressure drop and less leakage;

[0004] At present, the pneumatic actuator and the switching valve are connected by connecting nut, and the connecting nut and the switching valve are prone to looseness due to the lack of auxiliary clamping function, thereby reducing the stability of the connection between the pneumatic actuator and the switching valve, which is not convenient for the pneumatic actuator to control the switching valve, and there is no alarm mechanism after loosening, which is easy to cause safety hazard.

[0005] Therefore, it is necessary to provide a new switching type pneumatic valve to solve the above problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a switching type pneumatic valve to solve the problem that the traditional pneumatic actuator and switching valve are connected by connecting nut due to the lack of auxiliary clamping function, which causes the connecting nut and the switching valve to be prone to looseness, thereby reducing the stability of the connection between the pneumatic actuator and the switching valve, which is not convenient for the pneumatic actuator to control the switching valve, and there is no alarm mechanism after loosening, which is easy to cause safety hazard.

[0007] To achieve the above object, the utility model provides the following technical scheme: a switching type pneumatic valve, comprising a pneumatic actuator, the lower surface of the pneumatic actuator is provided with a connecting nut, the lower side of the connecting nut is provided with a switching valve, and the switching valve is provided with a flange plate.

[0008] The flange plate is provided with a fixed clamp block, the fixed clamp block is provided with a bolt hole, the upper surface and the lower surface of the fixed clamp block are both provided with a spring, and the spring is provided with a spring clamp block.

[0009] The flange plate is provided with a hole, and the hole has a plurality of holes, which are evenly distributed on the flange plate.

[0010] Preferably, the fixed clamping block has two, axisymmetric distribution on the flange plate, the fixed clamping block inner surface is arc surface design.

[0011] Preferably, the bolt hole has two, axisymmetric distribution on the fixed clamping block, the bolt hole forms connecting rod passage.

[0012] Preferably, the spring clamping block is provided with connecting rod hole, the connecting rod hole is provided with connecting rod, the connecting rod is located in the connecting rod passage.

[0013] Preferably, the connecting rod upper end position is provided with fixed clamping block, the fixed clamping block is V-shaped design, the fixed clamping block is in contact with connecting nut, the connecting rod lower end position is provided with fastening nut.

[0014] Preferably, the bolt hole is provided with fixed bolt, the fixed bolt is in screw connection with the bolt hole, the fixed bolt penetrates the bolt hole and is in contact with the inner surface of the flange plate.

[0015] Preferably, the connecting rod lower side is provided with alarm box, the alarm box upper surface is provided with upper cover plate, the upper cover plate is provided with movable slot.

[0016] Preferably, the alarm box is provided with touch switch, the touch switch has two, and is located in the direction of the connecting rod two sides, the touch switch front is provided with buzzer.

[0017] Preferably, the touch switch is electrically connected with the buzzer through wire.

[0018] Preferably, the reversing valve is provided with conveying pipeline, and the alarm box is located on the conveying pipeline.

[0019] The technical effect of the utility model lies in:

[0020] The fixed clamping block, the fixed clamping block and the connecting rod are arranged in the utility model, in the use process, the fixed clamping block on the connecting rod is in contact with the connecting nut, the fixed clamping block is connected with the flange plate, so that a stable whole is formed, which is beneficial to the fixation between the connecting nut and the reversing valve, and the fixed bolt can limit the connecting rod when loosening, prevent the loosening from aggravating, solve the problem that the traditional pneumatic actuator and the reversing valve are connected through the connecting nut, the connecting nut and the reversing valve are prone to loosening due to the lack of auxiliary clamping function, and the stability of the connection between the pneumatic actuator and the reversing valve is reduced.

[0021] The utility model discloses a connecting rod, touch switch and buzzer are set, when the connecting nut is loose, will drive the fixed clamping block and the deviation of connecting rod, thereby make the lower end of connecting rod contact touch switch, and further trigger the buzzer, remind staff to overhaul in time, the problem that the existing reversing valve has no alarm mechanism after loosening, and the security hidden danger is easy to produce is solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is whole structure schematic diagram of the utility model reversing pneumatic valve;

[0023] Figure 2 It is fixed clamping block split view of the utility model reversing pneumatic valve;

[0024] Figure 3 It is alarm box split view of the utility model reversing pneumatic valve;

[0025] Figure 4 It is fixed clamping block schematic diagram of the utility model reversing pneumatic valve;

[0026] In the drawing: 1, pneumatic actuator;2, reversing valve;3, connecting nut;4, flange plate;5, fixed clamping block;6, connecting rod;7, conveying pipeline;8, fixed clamping block;9, alarm box;10, hole;11, fastening nut;12, spring clamping block;13, spring;14, bolt hole;15, fixed bolt;16, upper cover plate;17, movable slot;18, touch switch;19, buzzer;20, connecting rod passage;21, connecting rod hole. DETAILED DESCRIPTION

[0027] As Figures 1-4 Shown, the utility model provides a kind of reversing pneumatic valve, including pneumatic actuator 1, connecting nut 3 is installed in the lower surface of pneumatic actuator 1, reversing valve 2 is arranged below connecting nut 3, and flange plate 4 is installed on reversing valve 2.

[0028] Fixed clamping block 8 is arranged on flange plate 4, bolt hole 14 is formed in fixed clamping block 8, spring 13 is installed on the upper surface and the lower surface of fixed clamping block 8, spring clamping block 12 is installed on spring 13, by the cooperation of spring 13 and spring clamping block 12, fixed clamping block 8 can be suitable for flange plate 4 of different height, increase the applicability of device.

[0029] Hole 10 is formed on flange plate 4, hole 10 is multiple, evenly distributed on flange plate 4, and hole 10 can be fixed in multiple directions for fixed clamping block 8.

[0030] The fixed clamping block 8 has two, axisymmetric distribution on the flange plate 4, the inner surface of the fixed clamping block 8 is arc surface design, arc surface design can make the fixed clamping block 8 more fit the outer surface of the flange plate 4, thereby improving the fastening degree.

[0031] The bolt hole 14 has two, axisymmetric distribution on the fixed clamping block 8, the bolt hole 14 forms a connecting rod passage 20.

[0032] The spring clamping block 12 is provided with a connecting rod hole 21, the connecting rod hole 21 is provided with a connecting rod 6, the connecting rod 6 is located in the connecting rod passage 20, when loosening, the fixed bolt 15 and the connecting rod passage 20 will limit the connecting rod 6, thereby preventing the loosening from aggravating.

[0033] The connecting rod 6 is provided with a fixed clamping block 5 at the upper end position, the fixed clamping block 5 is designed as V-shaped, so that the fixed clamping block 5 and the connecting nut 3 are more closely contacted, the fixed clamping block 5 and the connecting nut 3 are contacted, the connecting rod 6 is provided with a fastening nut 11 at the lower end position, the fastening nut 11 plays a vertical fixing role on the fixed clamping block 8.

[0034] Further, the bolt hole 14 is provided with a fixed bolt 15, the fixed bolt 15 is screw connected with the bolt hole 14, the fixed bolt 15 penetrates through the bolt hole 14 and is contacted with the inner surface of the flange plate 4.

[0035] The connecting rod 6 is provided with an alarm box 9 below, the alarm box 9 is provided with an upper cover plate 16 on the upper surface, the upper cover plate 16 is provided with a movable slot 17.

[0036] The alarm box 9 is provided with a touch switch 18 inside, the touch switch 18 has two, which are located on both sides of the connecting rod 6, the touch switch 18 and the connecting rod 6 are provided with a 1CM reserved space, which prevents false alarm caused by false touch or slight vibration, the touch switch 18 is provided with a buzzer 19 in front.

[0037] The touch switch 18 is electrically connected with the buzzer 19 through wires.

[0038] The reversing valve 2 is provided with a conveying pipeline 7, and the alarm box 9 is located on the conveying pipeline 7.

[0039] In use, first pull up the spring clamp block 12, clamped on the flange 4, preliminary positioning and fixing, then the connecting rod 6 in turn through the connecting rod hole 21 and hole 10, then the fastening nut 11 from the connecting rod 6 lower end into, fixed clamp block 8 firmly fixed on the flange 4, finally the fixed bolt 15 from the bolt hole 14 into, through the connecting rod 6 on the fixed block 5 and connecting nut 3 with resistance, fixed clamp block 8 and flange 4 connected, so that it forms a stable whole, is conducive to the fixed connecting nut 3 and reversing valve 2 between, at the same time fixed bolt 15 can be loosened, using the connecting rod channel 20, connecting rod 6 limiting, prevent loose aggravation, solve the traditional pneumatic actuator and reversing valve 2 between through the connecting nut 3 connection, because of lack of auxiliary clamping function, cause the connecting nut 3 and reversing valve 2 between prone to loose situation, and then reduce the stability of the pneumatic actuator and reversing valve 2 between the connection problem, at the same time when the connecting nut 3 loose, will drive the fixed block 5 and connecting rod 6 offset, so that the lower end of the connecting rod 6 contact touch switch 18, and then trigger the buzzer 19, so as to remind the staff timely maintenance, solve the existing reversing valve 2 after the loose without alarm mechanism, prone to safety problem.

Claims

1. A reversing pneumatic valve, characterized by It include pneumatic actuator (1), the lower surface of pneumatic actuator (1) is installed with connecting nut (3), the lower side of connecting nut (3) is equipped with reversing valve (2), the upper surface of reversing valve (2) is installed with flange plate (4);The upper surface and the lower surface of the fixed clamping block (8) are equipped with spring (13), and the spring (13) is installed with spring clamping block (12);The flange plate (4) is provided with a plurality of holes (10), which are evenly distributed on the flange plate (4).

2. The reversing pneumatic valve according to claim 1, characterized in that: The fixed clamping block (8) is axially symmetrically distributed on the flange plate (4), and the inner surface of the fixed clamping block (8) is arc-shaped.

3. The reversing pneumatic valve according to claim 2, characterized in that: The bolt hole (14) has two, which are axially symmetrically distributed on the fixed clamping block (8), and the bolt hole (14) forms a connecting rod channel (20) between them.

4. The reversing pneumatic valve according to claim 3, characterized in that: The spring clamping block (12) is provided with a connecting rod hole (21), and the connecting rod hole (21) is equipped with a connecting rod (6), and the connecting rod (6) is located in the connecting rod channel (20).

5. The shuttle valve according to claim 4, characterized in that: The connecting rod (6) is provided with a fixed clamping block (5) at the upper end position, the fixed clamping block (5) is V-shaped design, the fixed clamping block (5) is in contact with the connecting nut (3), and the connecting rod (6) is provided with a fastening nut (11) at the lower end position.

6. The shuttle valve according to claim 5, characterized in that: The bolt hole (14) is equipped with a fixed bolt (15), the fixed bolt (15) is screwed with the bolt hole (14), and the fixed bolt (15) penetrates the bolt hole (14) and is in contact with the inner surface of the flange plate (4).

7. The shuttle valve according to claim 6, characterized in that: The lower side of the connecting rod (6) is equipped with an alarm box (9), and the upper surface of the alarm box (9) is installed with an upper cover plate (16), and the upper cover plate (16) is provided with a movable slot (17).

8. The shuttle valve according to claim 7, characterized in that: The inside of the alarm box (9) is provided with a touch switch (18), the touch switch (18) has two, which are respectively located on the both sides of the connecting rod (6), and the front of the touch switch (18) is provided with a buzzer (19).

9. The shuttle valve according to claim 8, characterized in that: The touch switch (18) is electrically connected with the buzzer (19) through a wire.

10. The shuttle valve according to claim 9, characterized in that: The reversing valve (2) is provided with a conveying pipeline (7), and the alarm box (9) is located on the conveying pipeline (7).

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