Firing pin for pneumatic valve

Abstract

The utility model discloses a firing pin for a pneumatic valve, which comprises a firing pin component, a top cover arranged on the firing pin component and a follow-up tray arranged below the top cover, the firing pin component comprises an upper pin body and a lower pin body fixed below the upper pin body, and a firing head is arranged below the lower pin body. The follow-up tray comprises a lower tray body and an upper tray body fixed to the upper end face of the lower tray body, a containing groove is formed in the lower tray body, a touch assembly is arranged in the containing groove, a sliding groove is formed in the upper tray body, a sealing assembly is arranged in the sliding groove, and the sliding groove communicates with the containing groove. The touch assembly comprises a touch block, a sliding plate and a first spring, according to the firing pin for the pneumatic valve, through cooperation of the touch assembly and the sealing assembly, the sealing gasket is moved, so that the sealing gasket is tightly attached to the position between the firing pin and the valve, and the sealing gasket plays a better sealing role between the firing pin and the inner wall of the valve.

Description

Technical Field

[0001] The utility model relates to a striker, in particular to a striker used for a pneumatic valve. Background Art

[0002] When the pneumatic valve is working, compressed air is used to push the multiple groups of pneumatic pistons in the actuator to move, and the force is transmitted to the characteristics of the crossbeam and the inner curved track, driving the striker to rotate. The compressed air disc is sent to each cylinder, changing the inlet and outlet positions to change the direction of spindle rotation. According to the rotational torque requirements of the load (valve), the number of cylinder combinations can be adjusted to drive the load (valve) to work.

[0003] The sealing structure of the striker in the pneumatic valve is usually not self-adjustable, which may cause the sealing structure to loosen after a long period of use, resulting in a decrease in sealing performance. Utility Model Content

[0004] The purpose of the utility model is to provide a striker for a pneumatic valve, which moves the sealing gasket by cooperating with a trigger component and a sealing component, so that the sealing gasket fits tightly between the striker and the valve, so that the sealing gasket plays a better sealing role between the striker and the inner wall of the valve.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a striker for a pneumatic valve, comprising a striker assembly, a top cover arranged on the striker assembly and a follower tray arranged below the top cover, the striker assembly comprising an upper needle body and a lower needle body fixed below the upper needle body, a striker head is arranged below the lower needle body, the follower tray comprises a lower disc body and an upper disc body fixed to the upper end surface of the lower disc body, a receiving groove is arranged inside the lower disc body, a touch assembly is arranged in the receiving groove, a sliding groove is arranged inside the upper disc body, a sealing assembly is arranged in the sliding groove, and a sliding The groove is communicated with the accommodating groove, the touch assembly includes a touch block and a slide plate and a first spring respectively connected to the two ends of the touch block, the touch block is fitted with the inner wall of the accommodating groove, and an inner sliding rod is also fixed on the touch block, and a connecting seat is fixed at one end of the inner sliding rod away from the touch block, the sealing assembly includes a second spring and a rebound seat and an airbag respectively arranged at both ends of the second spring, the rebound seat is close to the connecting seat, and the rebound seat is fixedly connected to the second spring, and both ends of the airbag are fixed with fitting sheets, one of which is fixedly connected to the second spring, and a sealing gasket is fixedly connected to the other fitting sheet.

[0006] Preferably, the trigger block and the slide plate are both annular in design, and a plurality of the first springs, the inner slide rod and the connecting seat are provided, and the plurality of first springs are distributed on the circumference of the trigger block.

[0007] Preferably, the top of the first spring is fixedly connected to a support plate, which is fixed in the receiving groove; so that the first spring can drive the trigger block and the slide plate to extend and retract under the support of the support plate.

[0008] Preferably, one end of the slide plate is located in the accommodating groove, and the other end thereof extends from the accommodating groove, and the end of the slide plate extending from the accommodating groove is located below the lower plate body.

[0009] Preferably, the inner sliding rod passes through the interior of the first spring, and the top of the inner sliding rod passes through the support plate.

[0010] Preferably, the connecting seat has a first inclined surface.

[0011] Preferably, the rebound seat fits against the inner wall of the sliding groove, and the rebound seat has a second inclined surface; when the connecting seat gradually rises and drives the first inclined surface to contact the second inclined surface, the connecting seat can squeeze the rebound seat.

[0012] Preferably, the airbag is a hollow cavity structure with an inert gas disposed therein; and the air pressure inside the airbag is greater than or equal to a standard atmospheric pressure.

[0013] Preferably, the airbag and the sealing pad are both in contact with the inner wall of the sliding groove, so that a good sealing effect is achieved in the accommodating groove and the sliding groove.

[0014] Preferably, there are multiple rebound seats and second springs, the airbag and the sealing pad are both annular in design, and multiple rebound seats are distributed on the circumference of the airbag. The number of rebound seats is equal to the number of connecting seats, and the connecting seats correspond to the rebound seats one by one.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, a follower tray is provided on the needle body. When the striker assembly brings the follower tray into contact with the inner wall of the valve body of the pneumatic valve, the trigger block is squeezed and retracted into the accommodating groove, driving the connecting seat to squeeze the rebound seat, so that the second spring connected to the rebound seat generates pressure on the airbag, the fitting sheet and the sealing gasket, so that the sealing gasket moves toward the outside and fits with the inner wall of the valve body, thereby achieving a better sealing effect, enabling the sealing assembly to better seal between the needle body and the valve body, and ensuring the sealing performance of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model;

[0017] Figure 2 This is a second schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 For the utility model Figure 1 Schematic diagram of the cross section in the AA direction;

[0019] Figure 4 For the utility model Figure 3 A magnified view of the structure at point B in the middle;

[0020] Figure 5 For the utility model Figure 3 Enlarged view of the structure at point C in the middle.

[0021] The reference numerals and names in the figure are as follows: 1. striker assembly; 11. upper needle body; 12. lower needle body; 13. striker; 2. top cover; 3. follower tray; 31. lower plate body; 32. upper plate body; 33. accommodating groove; 34. sliding groove; 4. trigger assembly; 41. trigger block; 42. slide plate; 43. first spring; 44. support plate; 45. inner slide rod; 46. connecting seat; 461. first inclined surface; 5. sealing assembly; 51. rebound seat; 511. second inclined surface; 52. second spring; 53. airbag; 54. fitting sheet; 55. sealing gasket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0025] See also Figures 1 to 5 The utility model provides an embodiment: a striker for a pneumatic valve, comprising a striker assembly 1, a top cover 2 arranged on the striker assembly 1 and a follower tray 3 arranged below the top cover 2, the striker assembly 1 comprises an upper needle body 11 and a lower needle body 12 fixed below the upper needle body 11, a striker 13 is arranged below the lower needle body 12, the follower tray 3 comprises a lower plate body 31 and an upper plate body 32 fixed to the upper end surface of the lower plate body 31, a receiving groove 33 is arranged inside the lower plate body 31, a touch assembly 4 is arranged in the receiving groove 33, a sliding groove 34 is arranged inside the upper plate body 32, a sealing assembly 5 is arranged in the sliding groove 34, and the sliding groove 34 is communicated with the receiving groove 33, the touch assembly 4 comprises a touch block 41 and a slide plate 42 and a first spring 43 respectively connected to the two ends of the touch block 41, the touch block 41 and the slide plate 42 are both annular in design, the slide plate 4 The cam 42 is fixed to the bottom of the bottom plate 31 and the cam 43 is fixed to the bottom plate 31. The cam 42 is fixed to the bottom plate 31 and the cam 43 is fixed to the bottom plate 31.

[0026] The sealing assembly 5 includes a second spring 52 and a rebound seat 51 and an airbag 53 respectively arranged at both ends of the second spring 52. The rebound seat 51 and the second spring 52 are both provided with multiple, the rebound seat 51 is in contact with the inner wall of the sliding groove 34, and the rebound seat 51 has a second inclined surface 511. When the connecting seat 46 gradually rises and drives the first inclined surface 461 to contact the second inclined surface 511, the connecting seat 46 can squeeze the rebound seat 51, and the rebound seat 51 is close to the connecting seat 46, and the rebound seat 51 is fixedly connected to the second spring 52. The airbag 53 is a hollow cavity structure with inert gas provided inside. The air pressure value in the airbag 53 is greater than or equal to the value of a standard atmospheric pressure. A fitting piece 54 is fixed at both ends of the airbag 53, one of the fitting pieces 54 is fixedly connected to the second spring 52, and a sealing gasket 55 is fixedly connected to the other fitting piece 54. The airbag 53 and the sealing gasket 55 are both fitted with the inner wall of the sliding groove 34, so that the accommodating groove 33 and the sliding groove 34 have a good sealing effect. The airbag 53 and the sealing gasket 55 are both annular in design, and multiple rebound seats 51 are distributed on the circumference of the airbag 53. The number of rebound seats 51 is equal to the number of connecting seats 46, and the connecting seats 46 correspond one-to-one to the rebound seats 51.

[0027] During operation of the present invention, when the striker assembly 1 moves in the inner chamber of the valve body of the pneumatic valve, it drives the follower tray 3 to move accordingly. When the striker assembly 1 moves to the specified position, it drives the slide plate 42 to contact the inside of the valve body, and can squeeze the slide plate 42 back into the accommodating groove 33, so that the first spring 43 is compressed and drives the inner slide rod 45 and the connecting seat 46 to rise, so that the first inclined surface 461 contacts the second inclined surface 511, thereby making the connecting seat 46 contact with the rebound seat 51, squeezing the rebound seat 51, compressing the second spring 52 and squeezing the airbag 53 and the sealing gasket 55, and finally making the sealing gasket 55 move away from the connecting seat 46, and the sealing gasket 55 fits tightly against the inner wall of the valve body, thereby playing a good sealing role, and there is no need to worry about the problem of self-contraction of the sealing gasket 55.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A striker for a pneumatic valve, comprising a striker assembly (1), a top cover (2) disposed on the striker assembly (1), and a follower tray (3) disposed below the top cover (2), characterized in that: The striker assembly (1) comprises an upper needle body (11) and a lower needle body (12) fixed below the upper needle body (11), a striker (13) is provided below the lower needle body (12), the follower tray (3) comprises a lower plate body (31) and an upper plate body (32) fixed to the upper end surface of the lower plate body (31), a receiving groove (33) is provided inside the lower plate body (31), a touch assembly (4) is provided inside the receiving groove (33), a sliding groove (34) is provided inside the upper plate body (32), a sealing assembly (5) is provided in the sliding groove (34), and the sliding groove (34) is communicated with the receiving groove (33), the touch assembly (4) comprises a touch block (41) and a plurality of contact members (5) connected to the touch block (41) and a plurality of contact members (5) connected to the touch block (41) respectively. ) at both ends of the second spring (52) and the first spring (43), the touch block (41) is fitted with the inner wall of the accommodating groove (33), and an inner slide rod (45) is fixed on the touch block (41), and a connecting seat (46) is fixed on the end of the inner slide rod (45) away from the touch block (41), the sealing assembly (5) includes a second spring (52) and a rebound seat (51) and an air bag (53) respectively arranged at both ends of the second spring (52), the rebound seat (51) is fixedly connected to the second spring (52), and both ends of the air bag (53) are fixed with a fitting sheet (54), one of the fitting sheets (54) is fixedly connected to the second spring (52), and the other fitting sheet (54) is fixedly connected to a sealing gasket (55).

2. The striker for a pneumatic valve according to claim 1, characterized in that: The trigger block (41) and the slide plate (42) are both annular in design, and a plurality of the first springs (43), the inner slide rod (45) and the connecting seat (46) are provided, and the plurality of first springs (43) are distributed on the circumference of the trigger block (41).

3. The striker for a pneumatic valve according to claim 1, characterized in that: A support plate (44) is fixedly connected to the top of the first spring (43), and the support plate (44) is fixed in the accommodating groove (33).

4. The striker for a pneumatic valve according to claim 1, characterized in that: One end of the slide plate (42) is located in the receiving groove (33), and the other end thereof extends from the receiving groove (33). The end of the slide plate (42) extending from the receiving groove (33) is located below the lower plate (31).

5. The striker for a pneumatic valve according to claim 1, characterized in that: The inner sliding rod (45) passes through the interior of the first spring (43), and the top of the inner sliding rod (45) passes through the support plate (44).

6. The striker for a pneumatic valve according to claim 1, characterized in that: The connecting seat (46) has a first inclined surface (461).

7. The striker for a pneumatic valve according to claim 1, characterized in that: The rebound seat (51) is in contact with the inner wall of the sliding groove (34), and the rebound seat (51) has a second inclined surface (511).

8. The striker for a pneumatic valve according to claim 1, characterized in that: The airbag (53) is a hollow cavity structure, and an inert gas is provided inside the airbag.

9. The striker for a pneumatic valve according to claim 1, characterized in that: The airbag (53) and the sealing pad (55) are both in contact with the inner wall of the sliding groove (34).

10. The striker for a pneumatic valve according to claim 1, characterized in that: The rebound seat (51) and the second spring (52) are both provided in plurality, the airbag (53) and the sealing pad (55) are both annular in design, and the plurality of rebound seats (51) are distributed on the circumference of the airbag (53).

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