CN203570731U - Connecting structure for oil-way block and end cap - Google Patents

Connecting structure for oil-way block and end cap Download PDF

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Publication number
CN203570731U
CN203570731U CN201320732237.XU CN201320732237U CN203570731U CN 203570731 U CN203570731 U CN 203570731U CN 201320732237 U CN201320732237 U CN 201320732237U CN 203570731 U CN203570731 U CN 203570731U
Authority
CN
China
Prior art keywords
seal ring
plug
manifold block
hole
embedded
Prior art date
Application number
CN201320732237.XU
Other languages
Chinese (zh)
Inventor
王惠峰
Original Assignee
无锡市后宅振新机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 无锡市后宅振新机械有限公司 filed Critical 无锡市后宅振新机械有限公司
Priority to CN201320732237.XU priority Critical patent/CN203570731U/en
Application granted granted Critical
Publication of CN203570731U publication Critical patent/CN203570731U/en

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Abstract

The utility model provides a connecting structure for an oil-way block and an end cap. The connecting structure is good in sealing performance and capable of effectively avoiding oil leakage. The connecting structure comprises the oil-way block and the end cap, and an auxiliary hole is formed in the oil-way block. The connecting structure is characterized in that the end cap comprises a head part, a connecting part and a guiding part which are coaxially connected, the auxiliary hole is a step hole, the connecting part and the radial large end of the step hole are in threaded connection through a taper pipe, a first sealing ring is embedded into the radial periphery of the guiding part, a second sealing ring is embedded into the position between the lower end face of the connecting part and the step face of the auxiliary hole, and a third sealing ring is embedded into the position between the lower end face of the head of the end cap and the upper end face of the oil-way block.

Description

The linkage structure of a kind of manifold block and plug
Technical field
The utility model relates to electrohydraulic servo system technical field, relates in particular to the manifold block of controlling hydraulic working oil, is specially the linkage structure of a kind of manifold block and plug.
Background technique
The surface of manifold block is provided with mounting hole and auxiliary hole, and the internal hydraulic pressure pipeline of mounting hole UNICOM manifold block, for connecting each plate type hydraulic valve; Auxiliary hole is the through hole arranging for reducing its difficulty of processing in the processing of manifold block, and after manifold block machine shaping, auxiliary hole need be used plug plug dress, sealing.Existing plug is threaded with auxiliary hole and is wound around raw meal belt and improves its sealability.But raw meal belt is under high-pressure situations, and sealability is poor, the joint easy oil leakage of manifold block and plug.
Model utility content
For the problems referred to above, the utility model provides the linkage structure of a kind of manifold block and plug, and its good seal performance can effectively be avoided leakage of oil.
Its technological scheme is such, the linkage structure of a kind of manifold block and plug, it comprises manifold block and plug, described manifold block is provided with auxiliary hole, it is characterized in that: described plug comprises the head of coaxial connection, joint and guide portion, described auxiliary hole is step hole, described joint is connected by taper pipe thread with the radially larger end of described step hole, the outer radial periphery of described guide portion is embedded with seal ring one, between the lower end surface of described joint and the step surface of described auxiliary hole, be embedded with seal ring two, between the lower end surface of the head of described plug and the upper-end surface of manifold block, be embedded with seal ring three.
It is further characterized in that:
Described seal ring one is y-type seal ring, and along the opening direction of epipharynx and outer lip, described seal ring one is coated with the elastic skeleton of V-type;
The outer radial periphery of described seal ring one root is provided with the flange of 1~3 loop.
Adopt after structure of the present utility model, the joint of plug adopts taper pipe thread to be connected with the auxiliary hole of manifold block, the good airproof performance of connection; The outer radial periphery of guide portion is embedded with seal ring one, between the lower end surface of joint and the step surface of step hole, be embedded with seal ring two, between the lower end surface of the head of plug and the upper-end surface of manifold block, be embedded with seal ring three, can further strengthen the sealing that plug is connected with manifold block; Seal ring one is y-type seal ring, opening direction along epipharynx and outer lip, seal ring one is coated with the elastic skeleton of V-type, and epipharynx, outer lip are fitted with step hole, guide portion respectively under the elastic acting force of V-type elastic skeleton, further strengthen the sealing that plug is connected with manifold block.In sum, structure of the present utility model, its good seal performance, can effectively avoid leakage of oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation in the cross section of seal ring one of the present utility model.
Embodiment
As Fig. 1, shown in Fig. 2, the linkage structure of a kind of manifold block and plug, it comprises manifold block 5 and plug 1, manifold block 5 is provided with auxiliary hole 6, plug 1 comprises the head 2 of coaxial connection, joint 3 and guide portion 4, auxiliary hole 6 is step hole, joint 3 is connected by taper pipe thread with the radially larger end of step hole, and joint 3, the outer radial periphery of guide portion 4 is embedded with seal ring 1, between the lower end surface of joint 3 and the step surface of auxiliary hole, be embedded with seal ring two, between the lower end surface of the head 2 of plug 1 and the upper-end surface of manifold block 5, be embedded with seal ring 39, seal ring 1 is y-type seal ring, the opening direction along epipharynx 10 with outer lip 11, and seal ring 1 is coated with the elastic skeleton 13 of V-type, the outer radial periphery of seal ring one 7 roots is provided with the flange 12 of 3 loops.
As shown in Figure 1, the radially larger end of joint and step hole is taper.

Claims (3)

1. the linkage structure of a manifold block and plug, it comprises manifold block and plug, described manifold block is provided with auxiliary hole, it is characterized in that: described plug comprises the head of coaxial connection, joint and guide portion, described auxiliary hole is step hole, described joint is connected by taper pipe thread with the radially larger end of described step hole, the outer radial periphery of described guide portion is embedded with seal ring one, between the lower end surface of described joint and the step surface of described auxiliary hole, be embedded with seal ring two, between the lower end surface of the head of described plug and the upper-end surface of manifold block, be embedded with seal ring three.
2. the linkage structure of a kind of manifold block according to claim 1 and plug, is characterized in that: described seal ring one is y-type seal ring, and along the opening direction of epipharynx and outer lip, described seal ring one is coated with the elastic skeleton of V-type.
3. the linkage structure of a kind of manifold block according to claim 2 and plug, is characterized in that: the outer radial periphery of described seal ring one root is provided with the flange of 1~3 loop.
CN201320732237.XU 2013-11-20 2013-11-20 Connecting structure for oil-way block and end cap CN203570731U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320732237.XU CN203570731U (en) 2013-11-20 2013-11-20 Connecting structure for oil-way block and end cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320732237.XU CN203570731U (en) 2013-11-20 2013-11-20 Connecting structure for oil-way block and end cap

Publications (1)

Publication Number Publication Date
CN203570731U true CN203570731U (en) 2014-04-30

Family

ID=50538464

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320732237.XU CN203570731U (en) 2013-11-20 2013-11-20 Connecting structure for oil-way block and end cap

Country Status (1)

Country Link
CN (1) CN203570731U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100401A (en) * 2014-07-07 2014-10-15 广西玉柴机器股份有限公司 Auxiliary hole plug of engine
CN108506281A (en) * 2017-02-25 2018-09-07 天津移山工程机械有限公司 A kind of hydraulic unit matches deblocking technology
CN109178631A (en) * 2018-09-29 2019-01-11 杭州科百特过滤器材有限公司 Twoport bucket with multi-sealing structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100401A (en) * 2014-07-07 2014-10-15 广西玉柴机器股份有限公司 Auxiliary hole plug of engine
CN108506281A (en) * 2017-02-25 2018-09-07 天津移山工程机械有限公司 A kind of hydraulic unit matches deblocking technology
CN109178631A (en) * 2018-09-29 2019-01-11 杭州科百特过滤器材有限公司 Twoport bucket with multi-sealing structure

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140430

Termination date: 20141120