CN210637656U - Leakage-proof hydraulic joint for lifting adjustment - Google Patents

Abstract

The utility model discloses a leak protection type hydraulic joint for lifting adjustment, the fixed casing top cup joints the end cover, the fixed slot has been seted up to the end cover inside, the fastening cover has been cup jointed with the fixed casing junction to the end cover, the location section of thick bamboo is installed to the end cover bottom, the draw-in groove has evenly been seted up to end cover bottom edge, the welding of fixed casing top has a solid fixed ring, the fastening cover bottom corresponds the draw-in groove department and installs the fixture block, the utility model has the advantages of scientific and reasonable structure, convenient use, being provided with end cover, fastening cover and solid fixed ring, can shelter from the end cover bottom and seal, effectively improve the sealing performance inside the hydraulic joint, avoid gas emergence leakage, be provided with location section of thick bamboo, thread groove, draw-in groove and fixture block, improve the fastness of end cover installation, can dismantle the end cover, the gas hose is convenient to install in the fixed shell.

Description

Leakage-proof hydraulic joint for lifting adjustment

Technical Field

The utility model relates to a hydraulic joint technical field specifically is a leak protection type hydraulic joint for lifting adjusting.

Background

The hydraulic joint device is used for connecting hydraulic cylinders forming a hydraulic system or parts used for connecting various mechanical equipment and pipelines, is usually installed in a clamping sleeve type, a thin pipe flaring type and a welding type, clamps pipes by utilizing the deformation of the clamping sleeve and seals the pipes, has advanced structure and good performance, and is widely applied to a hydraulic lifting adjusting system;

however, the existing anti-leakage hydraulic joint for lifting adjustment has poor sealing performance inside the hydraulic joint, which easily causes gas leakage and poor firmness of the installation of the sealing end cover at the fixed shell, and the sealing end cover is troublesome to disassemble, so that the installation of the gas hose inside the fixed shell is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a leak protection type hydraulic joint for lift adjustment can effectively solve the current leak protection type hydraulic joint for lift adjustment who proposes in the above-mentioned background art and exist when using, and the inside sealing performance of hydraulic joint is relatively poor, leads to gaseous emergence to reveal easily and the fastness of end cover in the installation of fixed casing department is relatively poor, and the dismantlement of end cover is comparatively troublesome, is not convenient for the gas hose at the inside problem of installing of fixed casing.

In order to achieve the above object, the utility model provides a following technical scheme: a leak protection type hydraulic joint for lift adjustment, including fixed casing, the end cover is cup jointed on fixed casing top, flange has been cup jointed to fixed casing bottom, the inside fixed slot that has seted up of end cover, the end cover has cup jointed the fastening cover with fixed casing junction, a location section of thick bamboo is installed to the end cover bottom, the subsides of location section of thick bamboo bottom have covered first rubber packing ring, draw-in groove has evenly been seted up to end cover bottom edge, the spacing groove has been seted up to draw-in groove inner wall one side, the welding of fixed casing top has solid fixed ring, the fastening cover bottom corresponds draw-in groove department and installs the fixture block, the stopper is installed to fixture block one side, fastening cover bottom surface subsides have covered the second rubber packing.

Preferably, the bottom end in the fixing ring is provided with a retaining ring through a fixing nut.

Preferably, the outer diameter of the positioning cylinder is equal to the inner diameter of the fixing ring, and the positioning cylinder is connected with the fixing ring through a thread groove in a split mode.

Preferably, an air inlet is formed in one side inside the fixed shell, an air exhaust groove is formed in the other side inside the fixed shell, a supporting plate is arranged inside the air exhaust groove, an adjusting valve is arranged on one side of the supporting plate, a fixing rod is arranged at the bottom end of the adjusting valve, and the fixing rod is fixedly connected with the supporting plate through a compression spring.

Preferably, the exhaust groove is in a circular truncated cone shape, and the inner diameter of the exhaust groove is gradually enlarged from the middle part to one side.

Preferably, screw holes are uniformly formed in the connecting flange, and the surface of the connecting flange is uniformly coated with anti-rust paint.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. be provided with end cover, fastening cover, solid fixed ring, first rubber packing ring and second rubber packing ring, can be connected fixedly between end cover and the solid fixed ring through the fastening cover to the first rubber packing ring of cooperation location section of thick bamboo bottom and the second rubber packing ring of fastening cover bottom shelter from the sealing end cover bottom respectively and seal, thereby have effectively improved the inside sealing performance of hydraulic joint, have avoided gaseous emergence to reveal.

2. Be provided with a location section of thick bamboo, thread groove, draw-in groove, spacing groove and fixture block, carry out preliminary fixed connection through the thread groove to a location section of thick bamboo and solid fixed ring to the draw-in groove and the spacing groove of cooperation end cover bottom are fixed the fixture block on fastening cover top, thereby improve the fastness of end cover in the installation of fixed casing department, can dismantle end cover simultaneously, are convenient for install gas hose at fixed casing inside.

3. Be provided with air discharge duct, governing valve, dead lever and compression spring, when the inside different positions of air discharge duct through the governing valve, can change the internal diameter of air discharge duct, be convenient for according to actual hydraulic equipment's user state, carry out the throttle to the gas of fixed casing inside.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the sealing end cap of the present invention;

FIG. 3 is a schematic view of the internal structure of the fastening cover of the present invention;

fig. 4 is a schematic view of the installation structure of the regulating valve of the present invention.

Reference numbers in the figures: 1. a stationary housing; 2. sealing the end cap; 3. fixing grooves; 4. a fastening cover; 5. a connecting flange; 6. a positioning cylinder; 7. a thread groove; 8. a first rubber gasket; 9. a card slot; 10. a limiting groove; 11. a fixing ring; 12. a baffle ring; 13. a second rubber gasket; 14. a clamping block; 15. a limiting block; 16. an air inlet; 17. an exhaust groove; 18. adjusting a valve; 19. fixing the rod; 20. a compression spring; 21. and a support plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a leakage-proof hydraulic joint for lifting adjustment, which comprises a fixed casing 1, a sealing end cap 2 is sleeved on the top end of the fixed casing 1, a connecting flange 5 is sleeved on the bottom end of the fixed casing 1 and is arranged inside a screw hole through a fixing bolt, the connecting flange 5 can be connected with hydraulic equipment, the corrosion resistance of the connecting flange 5 is improved through antirust paint, the connecting flange 5 is prevented from being corroded and damaged after long-term use, the actual service life of the connecting flange 5 is prolonged, the screw hole is uniformly arranged inside the connecting flange 5, the antirust paint is uniformly coated on the surface of the connecting flange 5, a fixing groove 3 is arranged inside the sealing end cap 2, a fastening cover 4 is sleeved on the joint of the sealing end cap 2 and the fixed casing 1, a positioning cylinder 6 is arranged at the bottom end of the sealing end cap 2, a first rubber gasket 8 is adhered on the bottom end of the positioning, the bottom edge of the sealing end cover 2 is evenly provided with a clamping groove 9, a limiting groove 10 is formed in one side of the inner wall of the clamping groove 9, and a fixing ring 11 is welded at the top end of the fixing shell 1.

The bottom end in the fixing ring 11 is provided with a baffle ring 12 through a fixing nut, the positioning cylinder 6 can be supported at the bottom end of the fixing ring 11 through the baffle ring 12, the connection tightness between the positioning cylinder 6 and the fixing ring 11 is increased, the generation of a gap between the positioning cylinder 6 and the bottom end of the fixing ring 11 to cause gas leakage is avoided, the outer diameter of the positioning cylinder 6 is equal to the inner diameter of the fixing ring 11, the positioning cylinder 6 is connected with the fixing ring 11 through a thread groove 7 in a cracking way, the positioning cylinder 6 is firmly fixed through the thread groove 7 in the fixing ring 11, the firmness of the installation of the sealing end cover 2 at the top end of the fixed shell 1 is improved, meanwhile, the sealing end cover 2 can be disassembled, the air hose is fixedly installed, a clamping block 14 is installed at the bottom end of the fastening cover 4 corresponding to the clamping groove 9, a limiting block 15 is installed on one side of the clamping block 14, and a second rubber gasket 13 is attached to the surface of the bottom end of the fastening cover 4.

Air inlet 16 has been seted up to the inside one side of fixed casing 1, exhaust duct 17 has been seted up to the inside opposite side of fixed casing 1, be convenient for governing valve 18 when the inside different positions of exhaust duct 17, can change the internal diameter of exhaust duct 17, be convenient for according to actual hydraulic equipment user state, throttle the inside gas of fixed casing 1, the shape of exhaust duct 17 is the round platform shape, exhaust duct 17 internal diameter is progressively enlarged to one side by the middle part, exhaust duct 17 internally mounted has backup pad 21, governing valve 18 is installed to backup pad 21 one side, dead lever 19 is installed to governing valve 18 bottom, through compression spring 20 fixed connection between dead lever 19 and the backup pad 21.

The utility model discloses a theory of operation and use flow: in the process of using the anti-leakage hydraulic joint for lifting adjustment, firstly, a gas hose is connected to one side inside a fixed shell 1 through a sealing end cover 2, the other side of the fixed shell 1 is connected and fixed with hydraulic equipment for lifting adjustment through a connecting flange 5, a positioning cylinder 6 is screwed into a fixed ring 11 through a threaded groove 7, and a clamping block 14 at the top end of a fastening cover 4 is fixed by matching with a clamping groove 9 and a limiting groove 10 at the bottom end of the sealing end cover 2, so that the firmness of the installation of the sealing end cover 2 at the fixed shell 1 is improved, meanwhile, the sealing end cover 2 can be disassembled, and the gas hose is convenient to install inside the fixed shell 1;

then, the sealing end cover 2 and the fixing ring 11 can be connected and fixed through the fastening cover 4, and the bottom end of the sealing end cover 2 is respectively shielded and sealed by matching with the first rubber gasket 8 at the bottom end of the positioning cylinder 6 and the second rubber gasket 13 at the bottom end of the fastening cover 4, so that the sealing performance in the hydraulic joint is effectively improved, and gas leakage is avoided;

finally, carry compressed gas in fixed casing 1 inside through air inlet 16, when the compressed gas velocity of flow is great, compressed gas promotes governing valve 18 and removes left, stretch compression spring 20 through dead lever 19, and when the compressed gas velocity of flow is less, reset, when the governing valve 18 is in the inside different positions of exhaust duct 17, can change the internal diameter of exhaust duct 17, thereby be convenient for according to actual hydraulic equipment's for lift adjustment user state, carry out the throttle to the inside gas of fixed casing 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A leak protection type hydraulic joint for lifting adjusting, including fixed casing (1), its characterized in that: the top end of the fixed shell (1) is sleeved with a sealing end cover (2), the bottom end of the fixed shell (1) is sleeved with a connecting flange (5), a fixing groove (3) is arranged in the sealing end cover (2), a fastening cover (4) is sleeved at the joint of the sealing end cover (2) and the fixing shell (1), the bottom end of the sealing end cover (2) is provided with a positioning cylinder (6), the bottom end of the positioning cylinder (6) is coated with a first rubber gasket (8), the edge of the bottom end of the sealing end cover (2) is uniformly provided with clamping grooves (9), a limiting groove (10) is formed in one side of the inner wall of the clamping groove (9), a fixing ring (11) is welded at the top end of the fixing shell (1), a clamping block (14) is arranged at the bottom end of the fastening cover (4) corresponding to the clamping groove (9), a limiting block (15) is installed on one side of the clamping block (14), and a second rubber gasket (13) is attached to the surface of the bottom end of the fastening cover (4).

2. The leak-proof hydraulic joint for elevation adjustment according to claim 1, wherein: the bottom end in the fixing ring (11) is provided with a baffle ring (12) through a fixing nut.

3. The leak-proof hydraulic joint for elevation adjustment according to claim 1, wherein: the external diameter of a location section of thick bamboo (6) equals the internal diameter of solid fixed ring (11), through thread groove (7) fracture connection between a location section of thick bamboo (6) and solid fixed ring (11).

4. The leak-proof hydraulic joint for elevation adjustment according to claim 1, wherein: air inlet (16) have been seted up to inside one side of fixed casing (1), exhaust duct (17) have been seted up to the inside opposite side of fixed casing (1), exhaust duct (17) internally mounted has backup pad (21), governing valve (18) are installed to backup pad (21) one side, dead lever (19) are installed to governing valve (18) bottom, through compression spring (20) fixed connection between dead lever (19) and backup pad (21).

5. The leak-proof hydraulic joint for elevation adjustment according to claim 4, wherein: the exhaust groove (17) is in a circular truncated cone shape, and the inner diameter of the exhaust groove (17) is gradually enlarged from the middle part to one side.

6. The leak-proof hydraulic joint for elevation adjustment according to claim 1, wherein: screw holes are uniformly formed in the connecting flange (5), and antirust paint is uniformly coated on the surface of the connecting flange (5).

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