CN215762135U

CN215762135U - Air valve of air compressor

Info

Publication number: CN215762135U
Application number: CN202121553360.6U
Authority: CN
Inventors: 朱恩慰; 向先锋
Original assignee: Wenzhou Dongyi Machinery Manufacturing Co ltd
Current assignee: Wenzhou Dongyi Machinery Manufacturing Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-02-08
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses an air valve of an air compressor, which comprises a valve body, an adjusting screw rod and a nut, wherein the top of the adjusting screw rod is detachably connected with a hand wheel, the air valve also comprises a sealing device, the sealing device comprises a sleeve which is connected to the adjusting screw rod in a sliding manner along the axial direction of the adjusting screw rod, the top of the sleeve is provided with a through hole for the adjusting screw rod to pass through, and the inner peripheral surface of the through hole is provided with a first sealing ring; the top of the valve body is provided with an annular groove for the sleeve to be inserted, the circumferential surface of the sleeve is provided with a second sealing ring, and the circumferential surface of the second sealing ring can be abutted against the inner circumferential surface of the annular groove. The utility model can reduce the possibility of corrosion at the joint of the adjusting screw and the nut.

Description

Air valve of air compressor

Technical Field

The utility model relates to the technical field of air compressors, in particular to an air valve of an air compressor.

Background

Currently, an air compressor is a device for compressing gas. The air compressor is constructed similarly to a water pump. Most air compressors are of the reciprocating piston type.

In the prior art, reference can be made to a Chinese utility model patent with an authorization publication number of CN210423790U, which discloses an air valve adjusting device of an air compressor, comprising a valve body and an adjusting screw rod; the valve body is internally provided with a communicated cavity, the top of the cavity is provided with a pressure regulating spring for regulating air pressure, the top of the pressure regulating spring is connected with a regulating screw rod, the lower end of the cavity is formed with a diaphragm air chamber, the middle end of the diaphragm air chamber is horizontally provided with a diaphragm, the top end of the diaphragm is connected with the pressure regulating spring, the middle ends of the diaphragms are all formed with overflow holes, and the bottom ends of the overflow holes are provided with overflow valve seats for conduction; a valve body inlet and a valve body outlet are arranged below the diaphragm air chamber, the valve core cavity is communicated with the valve body inlet and the valve body outlet, a damping pipe for communicating is arranged between the valve core cavity and the diaphragm air chamber, and the top of the valve core extends into the diaphragm air chamber; and a nut for adjusting and locking is nested at the joint of the tail end of the adjusting screw rod and the top of the valve body.

However, the joint of the adjusting screw and the nut is exposed, which easily causes the joint of the adjusting screw and the nut to be rusted, thereby causing inconvenience for an operator to drive the adjusting screw to rotate.

SUMMERY OF THE UTILITY MODEL

The application provides an air compressor machine pneumatic valve can reduce the possibility that the junction of adjusting screw and nut takes place the corrosion.

The application provides a pair of air compressor machine pneumatic valve adopts following technical scheme:

an air valve of an air compressor comprises a valve body, an adjusting screw rod and a nut, wherein the top of the adjusting screw rod is detachably connected with a hand wheel, the air valve also comprises a sealing device, the sealing device comprises a sleeve which is connected to the adjusting screw rod in a sliding manner along the axial direction of the adjusting screw rod, the top of the sleeve is provided with a through hole for the adjusting screw rod to pass through, and the inner peripheral surface of the through hole is provided with a first sealing ring; the top of the valve body is provided with an annular groove for the sleeve to be inserted, the circumferential surface of the sleeve is provided with a second sealing ring, and the circumferential surface of the second sealing ring can be abutted against the inner circumferential surface of the annular groove.

Through adopting above-mentioned technical scheme, make telescopic bottom and ring channel peg graft through the removal sleeve, at this moment under the effect of sleeve, first sealing ring and second sealing ring, can seal the junction of adjusting screw and nut to can reduce the possibility that the corrosion takes place in the junction of adjusting screw and nut.

Preferably, a plurality of groups of fixing mechanisms for fixing the sleeve are mounted on the side wall of the annular groove, each group of fixing mechanisms comprises an inserting rod, a sliding groove is formed in the side wall of the annular groove, a jack is formed in the outer peripheral surface of the sleeve, one end of the inserting rod penetrates through the sliding groove and is close to one end of the sleeve to be inserted into the jack, the other end of the inserting rod penetrates through the sliding groove and is far away from one end of the sleeve to be arranged in a plugging mode, and a handle is fixedly connected to the other end of the inserting rod; the inserted link is fixedly connected with a sliding sleeve, and the sliding sleeve is connected with the sliding groove in a sliding manner; the inserted bar is sleeved with a first spring, one end of the first spring is fixedly connected to the inner wall of one end, close to the handle, of the sliding groove, and the other end of the first spring is fixedly connected to one side, far away from the sleeve, of the sliding sleeve.

By adopting the technical scheme, when the sleeve needs to be moved upwards, the inserting rod is pulled by the handle to separate the inserting rod from the inserting hole, then the sleeve can be moved, the inserting rod moves to drive the sliding sleeve to move, the sliding sleeve moves to press the first spring, and the first spring is in a compressed state; when the sleeve needs to be fixed, the sleeve is firstly inserted into the annular groove by moving the sleeve, then the handle is loosened, and the sliding sleeve drives the insertion rod to be inserted into the insertion hole under the action of the first spring, so that the sleeve can be fixed.

Preferably, the side wall of the valve body is connected with a limiting rod in a sliding manner along the axial direction of the adjusting screw rod, and a through hole for inserting the limiting rod is formed in the inserted rod.

Through adopting above-mentioned technical scheme, when needs removal sleeve, through the handle removal inserted bar to the perforation is aimed at to the bottom of gag lever post, then makes the bottom and the perforation of gag lever post peg graft through removing the gag lever post to alright carry on spacingly to the inserted bar, therefore be convenient for remove the sleeve.

Preferably, one end of the limiting rod is fixedly connected with a first dovetail block, and a first dovetail groove for the first dovetail block to slide is formed in the side wall of the valve body.

Through adopting above-mentioned technical scheme, the first dovetail piece and the first dovetail that set up are convenient for lead the gag lever post.

Preferably, the top of the sleeve is fixedly connected with a plurality of inserting blocks, the bottom of the hand wheel is provided with a plurality of inserting slots, and the inserting blocks are correspondingly inserted into the inserting slots one by one; and a fixing component for fixing the insertion block is arranged in the slot.

Through adopting above-mentioned technical scheme, when adjusting screw was rotated to needs, make inserted block and slot peg graft through the removal sleeve, then fix the inserted block through fixed subassembly to can install the bottom of hand wheel with the sleeve, when rotating adjusting screw like this, can drive the sleeve and rotate together, thereby can avoid first sealing ring and adjusting screw to produce violent friction, therefore can prolong the life of first sealing ring.

Preferably, the fixing component comprises an abutting block connected to the side wall of the slot in a sliding manner and a second spring fixedly connected to one side of the abutting block; the opposite inner sides of the abutting block and the inserting block are respectively provided with an inclined surface, and the two inclined surfaces are matched; one end of the second spring, which is far away from the abutting block, is fixedly connected to the inner wall of one side of the slot, which is far away from the inserting block.

By adopting the technical scheme, when the insertion block is inserted into the slot, the insertion block drives the abutting block to move under the action of the inclined surface, the abutting block moves to abut against the second spring, and the second spring is in a compressed state; when the insertion block is inserted into the slot, the abutting block can fix the insertion block under the action of the second spring; through setting up fixed subassembly, be convenient for fix the inserted block.

Preferably, one side of the abutting block is fixedly connected with a second dovetail block, and the side wall of the slot is provided with a second dovetail groove for the second dovetail block to slide.

Through adopting above-mentioned technical scheme, the second dovetail piece and the second dovetail that set up are convenient for lead and spacing to the butt joint piece.

Preferably, a connecting assembly for connecting a hand wheel is mounted at the top of the adjusting screw, and the connecting assembly comprises a threaded rod fixedly connected to the top of the adjusting screw and a nut in threaded connection with the threaded rod; the hand wheel cup joints in the threaded rod, the nut can the butt in the top of hand wheel.

Through adopting above-mentioned technical scheme, the threaded rod and the nut of setting are convenient for install the hand wheel.

In summary, the present application has the following beneficial effects:

1. the bottom of the sleeve is inserted into the annular groove by moving the sleeve, and the joint of the adjusting screw rod and the nut can be sealed under the action of the sleeve, the first sealing ring and the second sealing ring, so that the possibility of rusting at the joint of the adjusting screw rod and the nut can be reduced;

2. when the sleeve needs to be moved upwards, the inserting rod is pulled through the handle to separate the inserting rod from the jack, then the sleeve can be moved, the inserting rod moves to drive the sliding sleeve to move, the sliding sleeve moves to press the first spring, and the first spring is in a compressed state; when the sleeve needs to be fixed, the sleeve is firstly inserted into the annular groove by moving the sleeve, then the handle is loosened, and the sliding sleeve drives the insertion rod to be inserted into the insertion hole under the action of the first spring, so that the sleeve can be fixed;

3. the threaded rod and the nut are convenient to install the hand wheel.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a highlighted seal in an embodiment of the application;

FIG. 3 is a partial cross-sectional view of a highlighted securing mechanism in an embodiment of the present application.

Description of reference numerals: 1. a valve body; 11. adjusting the screw rod; 12. a nut; 13. a hand wheel; 131. connecting holes; 132. a slot; 133. a second dovetail groove; 14. an annular groove; 15. a chute; 16. a first dovetail groove; 2. a connecting assembly; 21. a threaded rod; 22. a nut; 3. a sealing device; 31. a sleeve; 311. a through hole; 312. inserting a block; 313. a jack; 32. a first seal ring; 33. a second seal ring; 4. a fixing mechanism; 41. inserting a rod; 411. perforating; 42. a handle; 43. a sliding sleeve; 44. a first spring; 45. a limiting rod; 451. a first dovetail block; 5. a fixing assembly; 51. a butting block; 511. a second dovetail block; 52. a second spring; 53. a bevel.

Detailed Description

The utility model discloses an air valve of an air compressor, which comprises a valve body 1, an adjusting screw rod 11 vertically arranged on the valve body 1 and a nut 12 arranged at the top of the valve body 1, wherein the adjusting screw rod is arranged on the valve body 1; the adjusting screw 11 is in threaded connection with the nut 12, the top of the adjusting screw 11 is detachably connected with the hand wheel 13, the top of the adjusting screw 11 is provided with a connecting component 2 for connecting the hand wheel 13, and the connecting component 2 comprises a threaded rod 21 vertically and fixedly connected to the top of the adjusting screw 11 and a nut 22 in threaded connection with the threaded rod 21; the centre of a circle department of hand wheel 13 has seted up connecting hole 131, and hand wheel 13 cup joints in threaded rod 21 through connecting hole 131, and nut 22 can the butt in the top of hand wheel 13.

As shown in fig. 1 and 2, the air valve of the air compressor further includes a sealing device 3, the sealing device 3 includes a sleeve 31 slidably connected to the adjusting screw 11 along the axial direction of the adjusting screw 11, the outer side wall of the sleeve 31 is fixedly connected with two handles, the sleeve 31 is vertically arranged, the top of the sleeve 31 is provided with a through hole 311 for the adjusting screw 11 to pass through, the through hole 311 is cylindrical, the inner circumferential surface of the through hole 311 is fixedly connected with a first sealing ring 32, and the first sealing ring 32 can be a rubber ring; the top of the valve body 1 is provided with an annular groove 14 for the bottom of the sleeve 31 to be inserted, the inner circumferential surface of the sleeve 31 is fixedly connected with a second sealing ring 33, the second sealing ring 33 can be a rubber ring, and the inner circumferential surface of the second sealing ring 33 can abut against the inner circumferential surface of the annular groove 14. The bottom of the sleeve 31 is inserted into the annular groove 14 by moving the sleeve 31, and at this time, the joint of the adjusting screw 11 and the nut 12 can be sealed under the action of the sleeve 31, the first sealing ring 32 and the second sealing ring 33, so that the possibility of corrosion at the joint of the adjusting screw 11 and the nut 12 can be reduced.

As shown in fig. 2 and 3, a plurality of sets of fixing mechanisms 4 for fixing the sleeve 31 are installed on the side wall of the annular groove 14, each set of fixing mechanisms 4 includes an insertion rod 41, the insertion rod 41 is arranged along the radial direction of the sleeve 31, the side wall of the annular groove 14 is provided with a sliding groove 15, the sliding groove 15 extends along the radial direction of the sleeve 31, the outer circumferential surface of the sleeve 31 is provided with an insertion hole 313, one end of the insertion rod 41 penetrates through one end of the sliding groove 15 close to the sleeve 31 to be inserted into the insertion hole 313, the other end penetrates through one end of the sliding groove 15 far away from the sleeve 31 and is provided with a handle 42 fixedly connected thereto, and the handle 42 protrudes out of the outer side wall of the valve body 1; a sliding sleeve 43 is fixedly sleeved on the side wall of the inserted rod 41, and the sliding sleeve 43 is connected to the sliding groove 15 in a sliding manner along the radial direction of the sleeve 31; the insert rod 41 is sleeved with a first spring 44, the first spring 44 is horizontally arranged, one end of the first spring 44 is fixedly connected to the inner wall of the sliding groove 15 close to the handle 42, and the other end of the first spring is fixedly connected to one side of the sliding sleeve 43 away from the sleeve 31. When the sleeve 31 needs to be moved upwards, the handle 42 pulls the insert rod 41 to separate the insert rod 41 from the insert hole 313, then the sleeve 31 can be moved, furthermore, the insert rod 41 moves to drive the sliding sleeve 43 to move, the sliding sleeve 43 moves to press the first spring 44, and at this time, the first spring 44 is in a compressed state; when the sleeve 31 needs to be fixed, the sleeve 31 is firstly inserted into the annular groove 14 by moving the sleeve 31, then the handle 42 is released, and the sliding sleeve 43 drives the insertion rod 41 to be inserted into the insertion hole 313 under the action of the first spring 44, so that the sleeve 31 can be fixed.

As shown in fig. 2 and 3, the side wall of the valve body 1 is connected with a limiting rod 45 along the vertical sliding direction, one end of the limiting rod 45 close to the valve body 1 is fixedly connected with a first dovetail block 451, and the side wall of the valve body 1 is provided with a first dovetail groove 16 for the first dovetail block 451 to slide along the vertical direction; the insertion rod 41 is provided with a through hole 411 for inserting the limiting rod 45. When the sleeve 31 needs to be moved, the inserting rod 41 is moved by the handle 42 until the bottom of the limiting rod 45 is aligned with the through hole 411, and then the limiting rod 45 is moved to enable the bottom of the limiting rod 45 to be inserted into the through hole 411, so that the inserting rod 41 can be limited, and the sleeve 31 is convenient to move.

As shown in fig. 1 and 2, two insertion blocks 312 are fixedly connected to the top of the sleeve 31, two insertion slots 132 are formed in the bottom of the hand wheel 13, and the two insertion blocks 312 are respectively inserted into the two insertion slots 132; the fixing member 5 for fixing the insert block 312 is installed in the insertion groove 132. When the adjusting screw 11 needs to be rotated, the inserting block 312 is inserted into the inserting groove 132 by moving the sleeve 31, and then the inserting block 312 is fixed by the fixing component 5, so that the sleeve 31 can be installed at the bottom of the hand wheel 13, and when the adjusting screw 11 is rotated, the sleeve 31 can be driven to rotate together, so that severe friction between the first sealing ring 32 and the adjusting screw 11 can be avoided, and the service life of the first sealing ring 32 can be prolonged.

As shown in fig. 1 and 2, the fixing assembly 5 includes an abutting block 51 slidably connected to the sidewall of the slot 132 along the radial direction of the hand wheel 13, and a second spring 52 fixedly connected to one side of the abutting block 51; the top of the abutting block 51 is fixedly connected with a second dovetail block 511, and the side wall of the slot 132 is provided with a second dovetail groove 133 for the second dovetail block 511 to slide along the radial direction of the hand wheel 13; the opposite inner sides of the abutting block 51 and the inserting block 312 are respectively provided with an inclined surface 53, and the two inclined surfaces 53 are matched; the end of the second spring 52 away from the abutting block 51 is fixed to the inner wall of the slot 132 away from the insertion block 312. When the insertion block 312 is inserted into the insertion slot 132, the insertion block 312 drives the abutting block 51 to move under the action of the inclined surface 53, the abutting block 51 moves to abut against the second spring 52, and the second spring 52 is in a compressed state; when the insertion block 312 is inserted into the insertion slot 132, the abutting block 51 can fix the insertion block 312 under the action of the second spring 52; through setting up fixed subassembly 5, be convenient for fix the inserted block 312.

The working principle is as follows: the inserted rod 41 is pulled by the handle 42 to move the inserted rod 41 in a direction away from the adjusting screw 11, then the bottom of the sleeve 31 is inserted into the annular groove 14 by moving the sleeve 31, and furthermore, the inserted rod 41 moves to drive the sliding sleeve 43 to move, the sliding sleeve 43 moves to press the first spring 44, and at the moment, the first spring 44 is in a compressed state; when the sleeve 31 needs to be fixed, the handle 42 is loosened, the sliding sleeve 43 drives the insertion rod 41 to be inserted into the insertion hole 313 under the action of the first spring 44, so that the sleeve 31 can be fixed, and the joint of the adjusting screw 11 and the nut 12 can be sealed under the action of the sleeve 31, the first sealing ring 32 and the second sealing ring 33, so that the possibility of rusting at the joint of the adjusting screw 11 and the nut 12 can be reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an air compressor machine pneumatic valve, includes valve body (1), adjusting screw (11) and nut (12), the top of adjusting screw (11) can be dismantled and be connected with hand wheel (13), its characterized in that: the sealing device (3) comprises a sleeve (31) connected to the adjusting screw rod (11) in a sliding mode along the axial direction of the adjusting screw rod (11), a through hole (311) used for allowing the adjusting screw rod (11) to pass through is formed in the top of the sleeve (31), and a first sealing ring (32) is arranged on the inner circumferential surface of the through hole (311); the top of the valve body (1) is provided with an annular groove (14) for the sleeve (31) to be inserted, the circumferential surface of the sleeve (31) is provided with a second sealing ring (33), and the circumferential surface of the second sealing ring (33) can abut against the inner circumferential surface of the annular groove (14).

2. The air compressor air valve as claimed in claim 1, wherein: a plurality of groups of fixing mechanisms (4) for fixing the sleeve (31) are mounted on the side wall of the annular groove (14), each group of fixing mechanisms (4) comprises an inserting rod (41), a sliding groove (15) is formed in the side wall of the annular groove (14), inserting holes (313) are formed in the peripheral surface of the sleeve (31), one end of each inserting rod (41) penetrates through the sliding groove (15), is close to one end of the sleeve (31), is inserted into the corresponding inserting hole (313), and the other end of each inserting rod penetrates through the sliding groove (15), is arranged at one end, far away from the sleeve (31), and is fixedly connected with a handle (42); a sliding sleeve (43) is fixedly connected to the inserted rod (41), and the sliding sleeve (43) is connected to the sliding groove (15) in a sliding manner; the inserted bar (41) is sleeved with a first spring (44), one end of the first spring (44) is fixedly connected to the inner wall of one end, close to the handle (42), of the sliding groove (15), and the other end of the first spring is fixedly connected to one side, far away from the sleeve (31), of the sliding sleeve (43).

3. The air compressor air valve as claimed in claim 2, wherein: the lateral wall of valve body (1) slides along the axial of adjusting screw (11) and is connected with gag lever post (45), offer on inserted bar (41) and be used for supplying perforation (411) that gag lever post (45) pegged graft.

4. The air compressor valve as claimed in claim 3, wherein: one end of the limiting rod (45) is fixedly connected with a first dovetail block (451), and a first dovetail groove (16) for the first dovetail block (451) to slide is formed in the side wall of the valve body (1).

5. The air compressor air valve as claimed in claim 1, wherein: the top of the sleeve (31) is fixedly connected with a plurality of inserting blocks (312), the bottom of the hand wheel (13) is provided with a plurality of inserting grooves (132), and the inserting blocks (312) are correspondingly inserted into the inserting grooves (132) one by one; and a fixing component (5) for fixing the insert block (312) is arranged in the slot (132).

6. The air compressor valve as claimed in claim 5, wherein: the fixing component (5) comprises an abutting block (51) connected to the side wall of the slot (132) in a sliding mode and a second spring (52) fixedly connected to one side of the abutting block (51); inclined planes (53) are respectively arranged on the opposite inner sides of the abutting block (51) and the inserting block (312), and the two inclined planes (53) are matched; one end of the second spring (52) far away from the abutting block (51) is fixedly connected to the inner wall of one side of the slot (132) far away from the inserting block (312).

7. The air compressor valve as claimed in claim 6, wherein: one side rigid coupling of butt joint piece (51) has second dovetail block (511), the lateral wall of slot (132) is seted up and is used for supplying second dovetail block (511) second dovetail groove (133) that slide.

8. The air compressor air valve as claimed in claim 1, wherein: the top of the adjusting screw rod (11) is provided with a connecting component (2) for connecting a hand wheel (13), and the connecting component (2) comprises a threaded rod (21) fixedly connected to the top of the adjusting screw rod (11) and a nut (22) in threaded connection with the threaded rod (21); the hand wheel (13) is sleeved on the threaded rod (21), and the nut (22) can abut against the top of the hand wheel (13).