CN212004458U

CN212004458U - Check valve convenient to maintain for air compressor

Info

Publication number: CN212004458U
Application number: CN201922472512.9U
Authority: CN
Inventors: 陆嘉峰; 刘湖; 吴俊�
Original assignee: Shanghai Stable Electromechanical Equipment Co ltd
Current assignee: Shanghai sitanbo fluid control Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-24
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a check valve for air compressor machine convenient to maintenance, including the check valve body, the fixed surface welding of the left and right sides of check valve body has the connecting plate, and the fixed surface welding that the connecting plate is close to one side of check valve body has stop gear, stop gear's the fixed welding in top has the second connecting rod, and the fixed welding in top left side of second connecting rod has the movable rod. The utility model discloses a be provided with the screw rod, through the screw thread auto-lock of screw rod self, the fixed plate of being convenient for is in the same place the connecting plate is fixed with the flange, quick dismantlement gets off on the flange when making things convenient for check valve body maintenance, the device is through being provided with second rubber pad and third rubber pad, be convenient for guarantee the leakproofness between check valve body and the flange, through being provided with the stopper, the fixed second connecting rod of being convenient for, the expansion force through spring self is convenient for support the stopper in the inside of rotating-ring, so prevent that the second connecting rod from rotating.

Description

Check valve convenient to maintain for air compressor

Technical Field

The utility model relates to a check valve technical field specifically is a check valve for air compressor machine convenient to maintenance.

Background

The check valve is a valve with a round valve clack and acts by self weight and medium pressure to block medium backflow, and the working principle of the check valve is similar to that of a lifting check valve. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water.

However, the existing check valve is fixedly connected with the flange through a plurality of groups of bolts, and is troublesome to disassemble during maintenance, so that a check valve for an air compressor, which is convenient to maintain, is urgently needed to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve for air compressor machine convenient to maintenance to current check valve that proposes in solving above-mentioned background art all is through multiunit bolt and flange fixed connection, dismantles more troublesome problem during the maintenance.

In order to achieve the above object, the utility model provides a following technical scheme: a check valve for an air compressor convenient to maintain comprises a check valve body, wherein connecting plates are fixedly welded on the surfaces of the left side and the right side of the check valve body, a limiting mechanism is fixedly welded on the surface of one side, close to the check valve body, of each connecting plate, a second connecting rod is fixedly welded on the top end of each limiting mechanism, a movable rod is fixedly welded on the left side of the top end of each second connecting rod, a screw rod is inserted into each movable rod, a sliding block is sleeved on the surface of one end, far away from the inside of each movable rod, the sliding block is connected with the corresponding movable rod through an inserting rod, a fixed plate is fixedly welded at the bottom end of each sliding block, a first rubber pad is glued on one side, close to the corresponding movable rod, of each first rubber pad, a flange is abutted on one side, far away from the fixed plate, of each flange is glued with, and a connecting plate is glued on one side of the third rubber pad far away from the second rubber pad.

Preferably, stop gear is including head rod, bracing piece, rectangle frame, spring, slide bar, stopper, rotating ring, the head rod is provided with two sets ofly, and passes through bracing piece fixed connection between two sets of head rods, the surface cover of bracing piece is equipped with the rotating ring, the rectangular channel has been seted up to the inside of bracing piece, and the inside fixed mounting of rectangular channel has the rectangle frame, the inside fixed mounting of rectangle frame has the spring, and the spring keeps away from the fixed welding of the inside one end of rectangle frame and has the slide bar, the fixed welding of one end that the spring was kept away from to the slide bar has the stopper.

Preferably, one end, far away from the sliding rod, of the limiting block is abutted to the rotating ring, the surface of the rotating ring is an arc surface, and a clamping groove matched with the limiting block is formed in the rotating ring.

Preferably, the screw rod is transversely inserted into the movable rod and the sliding block, one end of the screw rod inserted into the movable rod is installed on the inner wall of the movable rod through the bearing seat, and internal threads matched with the surface of the screw rod are formed in the inner surfaces of the sliding block and the movable rod.

Preferably, the inserted bar is of a rectangular structure, and a clamping groove matched with the inserted bar is formed in the movable bar.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a be provided with the screw rod, through the screw thread auto-lock of screw rod self, the fixed plate of being convenient for is together fixed with connecting plate and flange, quick dismantlement on the flange get off when making things convenient for check valve body maintenance.

The device is convenient for guarantee the leakproofness between check valve body and the flange through being provided with second rubber pad and third rubber pad, through being provided with the stopper, is convenient for fix the second connecting rod, is convenient for support the stopper in the inside of rotating-ring through the expansion force of spring self, so prevent that the second connecting rod from rotating.

Drawings

Fig. 1 is a front view schematically illustrating the present invention;

fig. 2 is a schematic front sectional view of the present invention;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 2 according to the present invention.

In the figure: 1. a check valve body; 2. a connecting plate; 3. a limiting mechanism; 31. a first connecting rod; 32. a support bar; 33. a rectangular frame; 34. a spring; 35. a slide bar; 36. a limiting block; 37. a rotating ring; 4. a second connecting rod; 5. a movable rod; 6. a screw; 7. a slider; 8. a fixing plate; 9. a first rubber pad; 10. a flange; 11. a second rubber pad; 12. a third rubber pad; 13. and (4) inserting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment:

a check valve for an air compressor convenient to maintain comprises a check valve body 1, connecting plates 2 are fixedly welded on the surfaces of the left side and the right side of the check valve body 1, limiting mechanisms 3 are fixedly welded on the surfaces of the connecting plates 2 close to one side of the check valve body 1, each limiting mechanism 3 comprises a first connecting rod 31, a supporting rod 32, a rectangular frame 33, a spring 34, a sliding rod 35, a limiting block 36 and a rotating ring 37, the first connecting rods 31 are provided with two groups, the two groups of first connecting rods 31 are fixedly connected through the supporting rods 32, the rotating rings 37 are sleeved on the surfaces of the supporting rods 32, rectangular grooves are formed in the supporting rods 32, the rectangular frames 33 are fixedly installed in the rectangular grooves, the springs 34 are fixedly installed in the rectangular frames 33, the sliding rods 35 are fixedly welded at one ends, far away from the rectangular frames 33, the limiting blocks 36 are fixedly welded at one ends, far, stopper 36 keeps away from the one end of slide bar 35 and looks inconsistent with swivel becket 37, and swivel becket 37's surface is the cambered surface, swivel becket 37's inside seted up with stopper 36 assorted draw-in groove, the expansion force through spring 34 self is convenient for support stopper 36 in swivel becket 37's inside, prevent so rotation of second connecting rod 4, be convenient for fix second connecting rod 4 on the surface of head rod 31, the fixed welding in top of stop gear 3 has second connecting rod 4, and the fixed welding in top left side of second connecting rod 4 has movable rod 5, the inside of movable rod 5 is inserted and is equipped with screw rod 6.

The screw rod 6 is transversely inserted into the movable rod 5 and the sliding block 7, one end of the screw rod 6 inserted into the movable rod 5 is arranged on the inner wall of the movable rod 5 through a bearing seat, the inner surfaces of the sliding block 7 and the movable rod 5 are provided with inner threads matched with the surface of the screw rod 6, the surface of one end of the movable rod 5 away from the inner part of the movable rod 5 is sleeved with the sliding block 7, the sliding block 7 is connected with the movable rod 5 through an inserting rod 13, the inserting rod 13 is of a rectangular structure, the inner part of the movable rod 5 is provided with a clamping groove matched with the inserting rod 13, when the screw rod 6 is prevented from rotating, the fixed plate 8 is driven to rotate, the bottom end of the sliding block 7 is fixedly welded with the fixed plate 8, one side of the fixed plate 8 close to the movable rod 5 is glued with a first rubber pad 9, one side of the first rubber pad 9 away from the fixed, one side of the second rubber pad 11 far from the flange 10 is abutted with a third rubber pad 12, and one side of the third rubber pad 12 far from the second rubber pad 11 is glued with a connecting plate 2.

The working principle is as follows: during the use, when need press maintenance check valve body 1, according to figure 1 and figure 4, manual anticlockwise rotation screw rod 6, screw rod 6 rotates sliding block 7 and slides on the surface of screw rod 6, and the surface of flange 10 is kept away from to first rubber pad 9, breaks away from with flange 10, according to figure 2, clockwise rotation movable rod 5 opens movable rod 5, dismantles check valve body 1 from flange 10, the quick dismantlement check valve body 1 maintenance of being convenient for, the operation is accomplished, above does all theory of operation of the utility.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a check valve for air compressor machine convenient to maintenance, includes check valve body (1), its characterized in that: the surface fixing welding of the left and right sides of the check valve body (1) has a connecting plate (2), and the fixed surface welding of the connecting plate (2) near one side of the check valve body (1) has a limiting mechanism (3), the top fixing welding of the limiting mechanism (3) has a second connecting rod (4), and the fixed welding of the top left side of the second connecting rod (4) has a movable rod (5), the inside of the movable rod (5) is inserted with a screw rod (6), and the surface cover of the movable rod (5) far away from one end inside the movable rod (5) is provided with a sliding block (7), and the sliding block (7) is connected with the movable rod (5) through an inserting rod (13), the bottom fixing welding of the sliding block (7) has a fixing plate (8), and one side of the fixing plate (8) near the movable rod (5) is glued with a first rubber pad (9), one side of the first rubber pad (9) far away from the fixing plate (8), and a second rubber pad (11) is glued on one side, far away from the first rubber pad (9), of the flange (10), a third rubber pad (12) is abutted on one side, far away from the flange (10), of the second rubber pad (11), and a connecting plate (2) is glued on one side, far away from the second rubber pad (11), of the third rubber pad (12).

2. The check valve for air compressor convenient for maintenance according to claim 1, characterized in that: stop gear (3) are including head rod (31), bracing piece (32), rectangle frame (33), spring (34), slide bar (35), stopper (36), swivel becket (37), head rod (31) are provided with two sets ofly, and pass through bracing piece (32) fixed connection between two sets of head rod (31), the surface cover of bracing piece (32) is equipped with swivel becket (37), the rectangular channel has been seted up to the inside of bracing piece (32), and the inside fixed mounting of rectangular channel has rectangle frame (33), the inside fixed mounting of rectangle frame (33) has spring (34), and spring (34) keep away from the fixed welding of the inside one end of rectangle frame (33) and have slide bar (35), the fixed welding of the one end that spring (34) were kept away from in slide bar (35) has stopper (36).

3. The check valve for air compressor convenient for maintenance according to claim 2, characterized in that: the end, far away from the sliding rod (35), of the limiting block (36) is abutted to the rotating ring (37), the surface of the rotating ring (37) is an arc surface, and a clamping groove matched with the limiting block (36) is formed in the rotating ring (37).

4. The check valve for air compressor convenient for maintenance according to claim 1, characterized in that: the screw rod (6) is transversely inserted into the movable rod (5) and the sliding block (7), one end of the screw rod (6) inserted into the movable rod (5) is installed on the inner wall of the movable rod (5) through a bearing seat, and internal threads matched with the surface of the screw rod (6) are formed in the inner surfaces of the sliding block (7) and the movable rod (5).

5. The check valve for air compressor convenient for maintenance according to claim 1, characterized in that: the inserted bar (13) is of a rectangular structure, and a clamping groove matched with the inserted bar (13) is formed in the movable bar (5).