Pneumatic valve with butt joint protection structure

Abstract

The utility model relates to the technical field of pneumatic valves, and provides a pneumatic valve with a butt joint protection structure, which comprises a pneumatic valve body, flanges connected with a pipeline are fixedly connected to two ends of the pneumatic valve body, a protection mechanism is arranged on the outer sides of the flanges, and the protection mechanism comprises two semicircular protection plates sleeved on the outer sides of the flanges. One ends of the two semicircular protection plates are hinged to each other, the other ends of the two semicircular protection plates are fixedly connected with connecting blocks, the outer side of one semicircular protection plate is fixedly connected with an air leakage detector, and the outer side of the pneumatic valve body is provided with an installation mechanism used for fixing the two semicircular protection plates to the outer side of a flange. The two semicircular protection plates are spliced into a complete circular ring structure to protect the joint of the flange and the pipeline, so that the problem that rainwater or dust blown from the side surface enters the joint of the flange and the pipeline to enter the pneumatic valve body to damage an actuating mechanism is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic valves, and in particular to a pneumatic valve with a docking protection structure. Background Art

[0002] Pneumatic valves are valves driven by compressed air. When purchasing pneumatic valves, it is sufficient to specify the specifications, categories, and working pressure to meet the purchasing requirements. Pneumatic valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

[0003] After searching, the Chinese patent publication number CN205298810U discloses "a protective device for a pneumatic valve, comprising: a protective body, one end of the protective body being an air inlet, and the other end being an air outlet, the air inlet and the air outlet being connected via an air guide pipe; the air inlet on the protective body being connected to the exhaust hole of the pneumatic valve; the air guide pipe on the protective body being bent in a downward direction toward the horizontal plane, and the outlet of the air outlet being directed downward toward the horizontal plane, the protective device also comprising a connecting structure, one end of the connecting structure being connected to one end of the protective body provided with the air inlet, and the other end of the connecting structure being used for sealing connection with the exhaust hole of the pneumatic valve".

[0004] The exhaust port of the exhaust channel of the above-mentioned patent is located on the side of the connecting part, which makes it easy for rainwater or dust to be blown into the exhaust port by the wind from the side, and enter the exhaust hole along the exhaust channel, and then enter the interior of the actuator, which is easy to damage the actuator. At the same time, during normal use, it is difficult to judge whether the pneumatic valve is leaking. In view of this, the utility model proposes a pneumatic valve with a docking protection structure. Utility Model Content

[0005] The utility model provides a pneumatic valve with a docking protection structure, which solves the problem that rainwater or dust etc. are easily blown into the exhaust port by wind from the side, causing damage to the actuator.

[0006] The technical solution of the utility model is as follows: a pneumatic valve with a docking protection structure, comprising a pneumatic valve body, both ends of the pneumatic valve body are fixedly connected with flanges connected to the pipeline, a protection mechanism is arranged on the outside of the flange, the protection mechanism comprises two semicircular protection plates sleeved on the outside of the flange, one ends of the two semicircular protection plates are hinged to each other, the other ends of the two semicircular protection plates are fixedly connected with connecting blocks, the outside of one of the semicircular protection plates is fixedly connected with a leakage detector for detecting whether there is leakage at the connection between the flange and the pipeline, and an installation mechanism for fixing the two semicircular protection plates to the outside of the flange is arranged on the outside of the pneumatic valve body.

[0007] Preferably, the inner sides of the two semicircular protective plates are fixedly connected with a plurality of spring plates, and the plurality of spring plates are evenly distributed along the inner walls of the corresponding semicircular protective plates. The inner sides of the two semicircular protective plates are concentrically provided with arc-shaped clamping plates, and the outer sides of the two arc-shaped clamping plates are fixedly connected with the corresponding spring plates.

[0008] Preferably, the radius of the arc-shaped clamping plate is smaller than the radius of the semicircular protection plate, and the radius of the arc-shaped clamping plate is the same as the outer diameter of the flange.

[0009] Preferably, the mounting mechanism includes a clamping block fixedly connected to the outside of the pneumatic valve body, one end of the clamping block is slidably fitted with a positioning piece, one side of the positioning piece is fixedly connected to a mounting block, and one end of the mounting block is provided with a clamping piece for clamping and fixing the two connecting blocks.

[0010] Preferably, the positioning member includes a socket slidably matched with the card block, the top of the card block is slidably connected to a positioning rod penetrating the top wall of the card block, the bottom end of the positioning rod slidably matches the card block, and the top of the positioning rod is fixedly connected to a pull block.

[0011] Preferably, a through positioning groove is provided in the middle of the clamping block, and the positioning rod is slidably matched with the positioning groove.

[0012] Preferably, the positioning member also includes a limit block, which is fixedly connected to the middle part of the positioning rod, and the inner wall of the socket is provided with a mounting groove matching the limit block, and the positioning rod is sleeved with a spring, the bottom end of the spring is in contact with the limit block, and the top end of the spring is in contact with the inner wall of the mounting groove.

[0013] Preferably, the clamping member includes two clamping rods rotatably connected to the two ends of the mounting block, the middle part of the mounting block is rotatably connected to a screw rod that passes through the mounting block, one end of the screw rod is fixedly connected to a rotating cap, and the other end of the screw rod is rotatably connected to a double-sided rack, one end of the two clamping rods are coaxially fixedly connected to gears, the two gears are respectively meshed with the two ends of the double-sided racks, and the other ends of the two clamping rods can press and fix the two connecting blocks by rotating towards each other.

[0014] The working principle and beneficial effects of the utility model are as follows: by sleeve-arranging two semicircular protection plates on the outer side of the flange, and then fixing the two semicircular protection plates on the outer side of the flange through a mounting mechanism, the two semicircular protection plates are spliced ​​into a complete circular ring structure and the connection between the flange and the pipeline is protected, thereby preventing rain or dust blown from the side from entering the connection between the flange and the pipeline and entering the pneumatic valve body to cause damage to the actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a structural schematic diagram of a pneumatic valve with a docking protection structure of the utility model;

[0017] Figure 2 The structure diagram of the protection mechanism of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 3 The structure diagram of the protection mechanism of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 4 It is a structural schematic diagram of the installation mechanism of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the positioning member of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the pressing member of the utility model;.

[0022] In the figure: 1. pneumatic valve body; 2. flange; 3. pipeline; 4. protection mechanism; 41. semicircular protection plate; 42. connecting block; 43. leakage detector; 44. arc clamping plate; 45. spring; 5. mounting mechanism; 51. mounting block; 52. clamping block; 53. positioning groove; 54. positioning piece; 541. clamping seat; 542. positioning rod; 543. pulling block; 544. limiting block; 545. mounting groove; 546. spring; 55. pressing piece; 551. clamping rod; 552. screw; 553. rotating cap; 554. double-sided rack; 555. gear. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 to Figure 6As shown, this embodiment proposes a pneumatic valve with a docking protection structure, including a pneumatic valve body 1, both ends of the pneumatic valve body 1 are fixedly connected with flanges 2 connected to a pipeline 3, and a protection mechanism 4 is arranged on the outer side of the flange 2. The protection mechanism 4 includes two semicircular protection plates 41 sleeved on the outer side of the flange 2, one end of the two semicircular protection plates 41 is hinged to each other, and the other ends of the two semicircular protection plates 41 are fixedly connected with a connecting block 42, and the inner sides of the two semicircular protection plates 41 are fixedly connected with a plurality of spring pieces 45, and the plurality of spring pieces 45 are evenly distributed along the inner walls of the corresponding semicircular protection plates 41, and the inner sides of the two semicircular protection plates 41 are concentrically provided with arc clamping plates 44, and the outer sides of the two arc clamping plates 44 are It is fixedly connected to the corresponding spring piece 45, the radius of the arc clamping plate 44 is smaller than the radius of the semicircular protection plate 41, and the radius of the arc clamping plate 44 is the same as the outer diameter of the flange 2. The outer side of one of the semicircular protection plates 41 is fixedly connected with a leakage detector 43 for detecting whether there is leakage at the connection between the flange 2 and the pipeline 3. The outer side of the pneumatic valve body 1 is provided with a mounting mechanism 5 for fixing the two semicircular protection plates 41 on the outer side of the flange 2; the spring piece 45 can make the arc clamping plate 44 fit tightly with the flange 2, so that the semicircular protection plate 41 and the flange 2 remain stable; the leakage detector 43 is used to detect whether there is leakage at the connection between the flange 2 and the pipeline 3, so that maintenance can be carried out in time when the pneumatic valve body 1 leaks.

[0025] By sleeved two semicircular protection plates 41 on the outside of the flange 2, and then fixing the two semicircular protection plates 41 on the outside of the flange 2 through the mounting mechanism 5, the two semicircular protection plates 41 are spliced ​​into a complete circular ring structure and the connection between the flange 2 and the pipe 3 is protected, thereby preventing rain or dust blown from the side from entering the connection between the flange 2 and the pipe 3 and entering the pneumatic valve body 1 to cause damage to the actuator.

[0026] Furthermore, the mounting mechanism 5 includes a block 52 fixedly connected to the outside of the pneumatic valve body 1, one end of the block 52 is slidably matched with a positioning member 54, one side of the positioning member 54 is fixedly connected to the mounting block 51, the positioning member 54 includes a seat 541 slidably matched with the block 52, the top of the block 52 is slidably connected with a positioning rod 542 that passes through the top wall of the block 52, the bottom end of the positioning rod 542 is slidably matched with the block 52, the top of the positioning rod 542 is fixedly connected with a pull block 543, and the middle of the block 52 A through positioning groove 53 is provided, and the positioning rod 542 is slidably matched with the positioning groove 53. The middle part of the positioning rod 542 is fixedly connected to the limiting block 544. The inner wall of the holder 541 is provided with a mounting groove 545 matching the limiting block 544. A spring 546 is sleeved on the positioning rod 542, and the bottom end of the spring 546 abuts against the limiting block 544, and the top end of the spring 546 abuts against the inner wall of the mounting groove 545. One end of the mounting block 51 is provided with a clamping member 55 for clamping and fixing the two connecting blocks 42.

[0027] During installation, the pull block 543 is pulled upward to make the positioning rod 542 slide completely into the installation groove 545. At this time, the spring 546 is squeezed by the limit block 544 to accumulate potential energy, and then the socket 541 and the block 52 are slidably matched, and then the pull block 543 is released. At this time, the spring 546 releases the potential energy, so that the limit block 544 drives the positioning rod 542 to slide downward and cooperate with the positioning groove 53 on the block 52, which makes the block 52 and the socket 541 remain fixed, thereby realizing the rapid installation of the installation block 51 and the clamping piece 55, which is convenient for the rapid fixation of the two semicircular protection plates 41.

[0028] Furthermore, the clamping member 55 includes two clamping rods 551 rotatably connected to the two ends of the mounting block 51, the middle part of the mounting block 51 is rotatably connected to a screw rod 552 that passes through the mounting block 51, one end of the screw rod 552 is fixedly connected to a rotating cap 553, and the other end of the screw rod 552 is rotatably connected to a double-sided rack 554, one end of the two clamping rods 551 are coaxially fixedly connected to a gear 555, the two gears 555 are respectively meshed with the two ends of the double-sided rack 554, and the other ends of the two clamping rods 551 can press and fix the two connecting blocks 42 by rotating towards each other.

[0029] After the two semicircular protection plates 41 are sleeved on the outer side of the flange 2, the screw 552 is rotated by rotating the rotating cap 553, so that the double-sided rack 554 can be moved closer to the mounting block 51. Since the double-sided rack 554 is meshed with the two gears 555, the gears 555 rotate in opposite directions, so that the two connecting blocks 42 rotate in opposite directions and the two connecting blocks 42 are pressed and fixed, so that the two semicircular protection plates 41 are fixed on the outer side of the flange 2. This method can realize the rapid fixation of the semicircular protection plates 41, thereby improving the installation efficiency of the entire structure.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic valve with a docking protection structure, comprising a pneumatic valve body (1), both ends of the pneumatic valve body (1) being fixedly connected to flanges (2) connected to a pipeline (3), characterized in that: A protection mechanism (4) is arranged on the outer side of the flange (2), and the protection mechanism (4) comprises two semicircular protection plates (41) sleeved on the outer side of the flange (2), one end of the two semicircular protection plates (41) being hinged to each other, and the other end of the two semicircular protection plates (41) being fixedly connected to a connection block (42), wherein a gas leakage detector (43) for detecting whether there is gas leakage at the connection between the flange (2) and the pipeline (3) is fixedly connected to the outer side of one of the semicircular protection plates (41), and a mounting mechanism (5) for fixing the two semicircular protection plates (41) on the outer side of the flange (2) is arranged on the outer side of the pneumatic valve body (1).

2. A pneumatic valve with a docking protection structure according to claim 1, characterized in that: A plurality of spring sheets (45) are fixedly connected to the inner sides of the two semicircular protection plates (41), and the plurality of spring sheets (45) are evenly distributed along the inner walls of the corresponding semicircular protection plates (41). An arc-shaped clamping plate (44) is concentrically arranged on the inner sides of the two semicircular protection plates (41), and the outer sides of the two arc-shaped clamping plates (44) are fixedly connected to the corresponding spring sheets (45).

3. The pneumatic valve with a docking protection structure according to claim 2, characterized in that: The radius of the arc-shaped clamping plate (44) is smaller than the radius of the semicircular protection plate (41), and the radius of the arc-shaped clamping plate (44) is the same as the outer diameter of the flange (2).

4. The pneumatic valve with a docking protection structure according to claim 1, characterized in that: The mounting mechanism (5) comprises a clamping block (52) fixedly connected to the outside of the pneumatic valve body (1); one end of the clamping block (52) is slidably fitted with a positioning member (54); one side of the positioning member (54) is fixedly connected to a mounting block (51); and one end of the mounting block (51) is provided with a pressing member (55) for pressing and fixing the two connecting blocks (42).

5. The pneumatic valve with a docking protection structure according to claim 4, characterized in that: The positioning member (54) comprises a holder (541) slidably engaged with the block (52); the top end of the block (52) is slidably connected to a positioning rod (542) penetrating the top wall of the block (52); the bottom end of the positioning rod (542) is slidably engaged with the block (52); and the top end of the positioning rod (542) is fixedly connected to a pull block (543).

6. The pneumatic valve with a docking protection structure according to claim 5, characterized in that: A through positioning groove (53) is provided in the middle of the clamping block (52), and the positioning rod (542) is slidably engaged with the positioning groove (53).

7. The pneumatic valve with a docking protection structure according to claim 5, characterized in that: The positioning member (54) further comprises a limit block (544), wherein the limit block (544) is fixedly connected to the middle part of the positioning rod (542), and an installation groove (545) matching the limit block (544) is provided on the inner wall of the clamping seat (541), and a spring (546) is sleeved on the positioning rod (542), wherein the bottom end of the spring (546) contacts the limit block (544), and the top end of the spring (546) contacts the inner wall of the installation groove (545).

8. The pneumatic valve with a docking protection structure according to claim 4, characterized in that: The clamping member (55) comprises two clamping rods (551) rotatably connected to the two ends of the mounting block (51); a screw rod (552) penetrating the mounting block (51) is rotatably connected to the middle part of the mounting block (51); one end of the screw rod (552) is fixedly connected to a rotating cap (553); the other end of the screw rod (552) is rotatably connected to a double-sided rack (554); one end of the two clamping rods (551) is coaxially fixedly connected to a gear (555); the two gears (555) are respectively meshed with the two ends of the double-sided rack (554); the other ends of the two clamping rods (551) can press and fix the two connecting blocks (42) by rotating towards each other.

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