Combined pneumatic valve

Abstract

The utility model relates to the technical field of pneumatic valves, and discloses a combined pneumatic valve which comprises a gas circuit board, a main valve body and a branch valve body are fixed on the gas circuit board, a valve element is arranged in the main valve body in a sliding mode, a first gas circuit is arranged in the gas circuit board, symmetrically-distributed gas holes are formed in the main valve body, a first through hole is formed in one side of the main valve body, and a second through hole is formed in the other side of the main valve body. The valve element is provided with two annular grooves, distance rings are arranged on the valve element in an array mode, the distance rings are connected with the valve element in a sliding mode, supporting rods are fixedly connected between every two adjacent distance rings in an array mode, a through groove is formed between the supporting rods, and the first through hole and the air hole are located on the two sides of the distance rings; the first through hole communicates with the air hole through the annular groove. The gas circuit board bears the main valve body and the branch valve bodies to form a modularized pneumatic valve structure, the main valve body controls the on-off of the gas circuit board so as to generally control the gas source supply of each branch valve body, and the modularized structure is convenient to produce and simple and convenient to assemble and operate.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic valve technical field, concretely is a combined pneumatic valve. BACKGROUND

[0002] Pneumatic valve is the control valve of the piston movement in the actuator that is promoted by the supply of compressed air.

[0003] In prior art, such as the high pressure pneumatic valve group structure mentioned in the application number CN201920785616.2, is formed by a plurality of pneumatic valve sets in series, wherein the pneumatic valve set includes pneumatic valve, valve block assembly and hollow bolt, the hollow bolt passes through the valve block assembly and is fixedly connected with the pneumatic valve.

[0004] But in prior art, such as the high pressure pneumatic valve group structure mentioned in the application number, the production preparation cost is higher, and the preparation process is complex, and at the same time, the high pressure pneumatic valve group lacks safety protection structure, and when the actual valve uses pressure is too large, the valve and pneumatic actuator are damaged. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a combined pneumatic valve to solve the problems in prior art.

[0006] The utility model can be realized by the following technical scheme:

[0007] A combined pneumatic valve, including gas circuit board, the gas circuit board is fixed with main valve body and branch valve body, the main valve body is slidably provided with valve core, and the gas circuit board is provided with gas circuit one and gas circuit two.

[0008] The main valve body is provided with symmetrically distributed air holes, one side of the main valve body is provided with through hole one and through hole two, and the through hole one, the through hole two and the air hole are communicated with the inner cavity of the main valve body, and the through hole one, the through hole two and the air hole are arranged in a staggered manner.

[0009] Two annular grooves are arranged on the valve core, and the valve core is arrayed with a spacer ring, the spacer ring is slidably connected with the valve core, and a support rod is fixedly connected between the adjacent two spacer rings, a through groove is formed between the support rods, and the spacer ring is arranged between the through hole one, the through hole two and the air hole, and the through hole one is communicated with the air hole through the annular groove.

[0010] Further, a plurality of gas grooves are symmetrically arranged on the gas circuit board, the gas grooves are communicated with the gas circuit one and the gas circuit two, and the air hole is communicated with the gas groove.

[0011] Further, the pressure sensing piece is provided between the sub valve body and the main valve body, an opening slot is arranged on the pressure sensing piece, an indicating rod is slidably arranged in the opening slot, one end of the indicating rod is slidably connected with the pressure sensing piece, the other end of the indicating rod is slidably provided with a blocking sleeve, the blocking sleeve is threadedly connected with the pressure sensing piece, and an indicating line for pressure warning is arranged on the outer side of the indicating rod.

[0012] Further, a pipeline is arranged in the pressure sensing piece, one end of the pipeline is located at one end of the indicating rod, and the other end of the pipeline is in communication with a gas groove on the gas circuit board.

[0013] Further, a threaded hole is arranged on the main valve body, the threaded hole is connected with an external gas source, and the threaded hole is in communication with the inner cavity of the main valve body.

[0014] Further, a bottom plate for mounting is fixed to the bottom of the gas circuit board.

[0015] The utility model discloses a beneficial effect:

[0016] 1, the utility model discloses a combined pneumatic valve, and the gas circuit board bears the main valve body and a plurality of sub valve bodies, forms the modularization pneumatic valve structure, controls the on-off of the gas circuit board through the main valve body, and the total control of the gas supply of each sub valve body can realize the safety protection function of the valve, improves the safety of the pneumatic valve.

[0017] 2, the utility model discloses a combined pneumatic valve, simple structure, and the modularization structure is convenient for production, saves production cost, and the assembly operation is simple, and simultaneously, the assembly flexibility of the pneumatic valve is high, is suitable for a variety of pneumatic control environment, and has the indication function, can indicate the safe pressure of the pneumatic valve. ACCURACY OF DRAWINGS

[0018] The utility model makes further explanation in combination with the drawings.

[0019] Figure 1 It is the structure schematic diagram of the pneumatic valve of the utility model;

[0020] Figure 2 It is the structure schematic diagram of the pneumatic valve of the utility model;

[0021] Figure 3 It is the cross section structure schematic diagram of the pneumatic valve of the utility model;

[0022] Figure 4 It is the cross section structure schematic diagram of the main valve body of the pneumatic valve of the utility model;

[0023] Figure 5 It is the partial structure schematic diagram of the pneumatic valve of the utility model;

[0024] Figure 6 It is the structure schematic diagram of the pneumatic valve in the embodiment 2 of the utility model.

[0025] The attached diagram is described below:

[0026] 1. Air circuit board; 2. Main valve body; 3. Sub-valve body; 4. Pressure sensor; 5. Valve core; 6. Base plate; 7. Through hole one; 8. Through hole two; 11. Air circuit one; 12. Air circuit two; 13. Air groove; 22. Air hole; 23. Threaded hole; 42. Pipeline; 43. Sealing sleeve; 44. Indicator rod; 45. Opening groove; 51. Ring groove; 52. Spacer ring; 53. Support rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] A type of combined pneumatic valve, such as Figure 1 As shown, the combined pneumatic valve includes a pneumatic circuit board 1, on which a main valve body 2 and a branch valve body 3 are fixedly mounted. A pressure sensing element 4 is provided between the branch valve body 3 and the main valve body 2. The main valve body 2 and the branch valve body 3 adopt a modular structure and are fixedly connected to the pneumatic circuit board 1 by bolts. A valve core 5 is installed in each valve body, and the valve core 5 is slidably installed in the main valve body 2 and the branch valve body 3.

[0030] like Figure 2 , Figure 3 As shown, the air circuit board 1 is provided with air circuit 11 and air circuit 2 12. Air circuit 11 and air circuit 2 12 are used for air intake and air exhaust, respectively. The pressure sensor 4 is provided with an opening groove 45. An indicator rod 44 is slidably provided in the opening groove 45. One end of the indicator rod 44 is slidably connected to the pressure sensor 4, and the other end is slidably connected to the sealing sleeve 43. The sealing sleeve 43 is threaded to one side of the pressure sensor 4, and the sealing sleeve 43 is slidably sleeved on the indicator rod 44. A pressure cavity is formed between the sealing sleeve 43 and the end of the pressure sensor 4, and an indicator line is provided on the outside of the indicator rod 44.

[0031] When the gas in the pressure chamber is within the normal pressure range, the gas pressure in the gas path is in line with the equipment load pressure. The indicator line on the indicator rod 44 does not move or moves only a small range. When the pressure in the gas path is too high, the gas pressure of the equipment load is too high. The indicator rod 44 moves into the sealing sleeve 43, and the indicator line moves a large range. At this time, the staff can observe the degree of deviation of the indicator line to know the situation of excessive gas pressure.

[0032] A plurality of air grooves 13 are formed on the air path plate 1, two air grooves 13 are respectively arranged on the air path one 11 and the air path two 12, and are respectively communicated with the air path one 11 and the air path two 12, a pipeline 42 is arranged in the pressure sensing part 4, one end of the pipeline 42 is located at the end of the indicating rod 44 away from the sealing sleeve 43, the other end is communicated with one air groove 13 on the air path plate 1, so as to transmit the gas pressure in the air path two 12 to the indicating rod 44.

[0033] The air holes 22 are symmetrically arranged in the main valve body 2, the air holes 22 are communicated with the air grooves 13, and the gas in the main valve body 2 is discharged into the air path two 12, a through hole one 7 is arranged on one side of the main valve body 2, the main gas pipe is connected to the main valve body 2, so that the gas in the main gas pipe is supplied into the main valve body 2, the through hole one 7 and the air hole 22 are communicated with the inner cavity of the main valve body 2, and the through hole one 7 is arranged opposite to the air hole 22.

[0034] The through hole two 8 is communicated with the air path one 11 through the air hole 22 and the air groove 13, the through hole two 8 is arranged opposite to the air hole 22, and the through hole one 7 and the through hole two 8 are controlled to be connected or disconnected with the corresponding air path structure.

[0035] The valve core 5 is sleeved with an array of separation rings 52, the separation rings 52 are slidably connected with the valve core 5, and an array of support rods 53 is fixedly arranged between the adjacent two separation rings 52, the support rods 53 form a through groove therebetween, and the through hole one 7 and the air hole 22 are respectively located on the two sides of a separation ring 52, when the valve core 5 is located at the separation ring 52, the separation ring 52 is sealed, and the gas transmission is blocked.

[0036] Two ring grooves 51 are formed on the valve core 5, one ring groove 51 is communicated with the through grooves on the two sides of the separation ring 52 when the valve core 5 moves to the separation ring 52, so that the gas supplied by the through hole one 7 is transmitted through the separation ring 52 and then supplied into the air path plate 1 through the air hole 22, a threaded hole 23 is formed on the main valve body 2, the threaded hole 23 is connected with an external gas source, and the threaded hole 23 is communicated with the inner cavity of the main valve body 2.

[0037] The other ring groove 51 is close to the button of the valve core 5, the ring groove 51 is slidably arranged in a separation ring 52, and one end of the ring groove 51 close to the button is communicated with the threaded hole 23, when automatic control is needed, the external gas source can be connected, and then the gas is supplied into the threaded hole 23 by using the external gas source, the gas pushes the ring groove 51, so that the valve core 5 is automatically moved.

[0038] In the embodiment, the sub-valve body 3 has the same structure as the main valve body 2.

[0039] If the main valve body 2 is closed, the gas in the main valve body 2 is blocked, the gas in the air path one 11 is blocked, and the gas transmission in the sub-valve body 3 is stopped, if the main valve body 2 is opened, the sub-valve body 3 can be opened, and the total control function of the main valve body 2 is realized.

[0040] For the convenience of installation, the bottom plate 6 can be fixed at the bottom of the gas circuit board 1.

[0041] Embodiment 2

[0042] The single main valve body 2 and the plurality of sub valve bodies 3 are installed on the same gas circuit board 1, and the plurality of sub valve bodies 3 realize the shunt control of a plurality of devices.

[0043] The working principle is as follows:

[0044] The main valve body 2 and the sub valve body 3 are fixedly installed on the gas circuit board 1, the gas supply circuit is connected on the main valve body 2, the gas into the gas circuit board 1 is controlled, then the overall on-off of the gas circuit board 1 is controlled by the main valve body 2, the centralized control is realized, then the gas enters into each sub valve body 3, the specific on-off of the sub valve body 3 is controlled by the movement of the valve core 5 on the sub valve body 3, the control of a plurality of devices is realized, and the safety is high.

[0045] And a plurality of sub valve bodies 3 can be arranged on the gas circuit board 1, a plurality of devices are simultaneously controlled, the control does not interfere with each other, only one gas circuit board 1 is needed to supply the gas in the gas circuit, the structure is simplified, the operation control is simple, and the utility model is suitable for the use of pneumatic devices.

[0046] The basic principle, main features and advantages of the utility model are shown and described above. The technical personnel in the industry should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall into the scope of the utility model to be protected.

Claims

1. A combined pneumatic valve comprising a gas path plate (1), characterized in that, The gas path plate (1) is fixed with a main valve body (2) and a sub valve body (3), the main valve body (2) is slidably provided with a valve core (5), and the gas path plate (1) is provided with a gas path one (11) and a gas path two (12); The main valve body (2) is provided with symmetrically distributed air holes (22), one side of the main valve body (2) is provided with a through hole one (7) and a through hole two (8), the through hole one (7), the through hole two (8) and the air hole (22) are in communication with the inner cavity of the main valve body (2), and the through hole one (7), the through hole two (8) and the air hole (22) are arranged in a staggered manner; The valve core (5) is provided with two ring grooves (51), and the valve core (5) is arrayed with a partition ring (52), the partition ring (52) is slidably connected with the valve core (5), and the adjacent two partition rings (52) are arrayed and fixedly connected with a support rod (53), the support rod (53) forms a through groove, and the through hole one (7), the through hole two (8) and the air hole (22) are provided with the partition ring (52), and the through hole one (7) and the air hole (22) are communicated through the ring groove (51).

2. A combination pneumatic valve according to claim 1, wherein The gas path plate (1) is provided with a plurality of gas grooves (13) symmetrically distributed, the gas grooves (13) are communicated on the gas path one (11) and the gas path two (12), and the air hole (22) is communicated with the gas groove (13).

3. A combination pneumatic valve according to claim 1, wherein The pressure sensing piece (4) is provided with an opening groove (45), and the opening groove (45) is slidably provided with an indicating rod (44), one end of the indicating rod (44) is slidably connected with the pressure sensing piece (4), the other end is slidably provided with a plugging sleeve (43), the plugging sleeve (43) is threadedly connected with the pressure sensing piece (4), and the outer side of the indicating rod (44) is provided with an indicating line for pressure warning.

4. A combination pneumatic valve according to claim 3, wherein, The pressure sensing piece (4) is provided with a pipeline (42), one end of the pipeline (42) is located at one end of the indicating rod (44), and the other end is communicated with the gas groove (13) on the gas path plate (1).

5. A combination pneumatic valve according to claim 1, wherein, The main valve body (2) is provided with a threaded hole (23), the threaded hole (23) is connected with an external gas source, and the threaded hole (23) is communicated with the inner cavity of the main valve body (2).

6. A combination pneumatic valve according to claim 1, wherein, The bottom of the gas path plate (1) is fixed with a bottom plate (6) for installation.

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