CN216923566U - A new type of single interface - Google Patents

Abstract

The utility model provides a novel single interface, which belongs to the technical field of single interfaces and comprises a female port and a male port, wherein a screw arranged on the female port is in threaded connection with a spiral groove arranged on the male port, the female port and the male port can be detachably connected, after the female port and the male port are in butt joint connection, a male joint arranged on the male port is inserted into a locking sleeve of the female port, a middle sleeve of the female port is inserted into the male joint, the middle sleeve realizes compression of a first spring by pushing a first valve sleeve of the male port to retreat, the female port and the male port after connection are in communication with high-pressure oil through an internal oil path of the single interface, and an external oil path is in communication with low-pressure oil. The utility model has simple processing, good sealing effect and more reliable performance, and can effectively reduce the failure rate.

Description

A new type of single interface

technical field

The utility model belongs to the technical field of single interface, in particular to a novel single interface.

Background technique

At present, the commonly used single-port high-pressure oil circuit seal, that is, the seal between the male valve seat and the sealing joint, and the seal between the female valve seat and the ejector rod, are hard seals, that is, metal-to-metal seals. , The sealing effect is poor, and the processing accuracy is also high, and the sealing failure is prone to occur. At the same time, the commonly used single-interface locking sleeve is composed of two parts to fix the screw, which has many parts and complicated processing.

Utility model content

In view of this, the present utility model aims to provide a single interface, which can connect the hydraulic demolition tool and the hydraulic motor pump at one time, so that the high-pressure oil of the hydraulic pump can be smoothly transported into the tool, and meanwhile the sealing is more reliable and the manufacturability is better. .

In order to achieve the above-mentioned purpose, the technical scheme of the present utility model is realized as follows: a novel single port includes a female port and a male port, and is threadedly connected with a screw groove provided on the male port through a screw provided on the female port, and the female port is threaded. The detachable connection can be realized with the male port. After the female port and the male port are butt-connected, the male connector provided on the male port is inserted into the locking sleeve of the female port, and the middle sleeve of the female port is inserted into the male port. In the joint, and the middle sleeve realizes the compression of the first spring by pushing the first valve sleeve of the male port backward, the female port and the male port after connecting, the internal oil circuit of the single port communicates with high-pressure oil, and the external oil circuit communicates with low-pressure oil. .

Further, the male port includes a male valve seat and a male joint, the outer wall of the male joint is provided with a spiral groove incision that is matched and connected with a screw, and the male joint is screwed into the male valve seat, so The inner cavity formed by the male valve seat and the male joint is provided with a sealing joint, an intermediate pipe and a first valve sleeve, and the first valve sleeve is installed at the end of the male joint away from the male valve seat, so the One end of the intermediate pipe is installed in the first valve sleeve, the other end is connected with the sealing joint, the end of the sealing joint away from the intermediate pipe is connected with the male valve seat, and the outer wall of the intermediate pipe is connected with the male valve seat. The upper sleeve is provided with a first spring, one end of the first spring is in contact with the tail end of the intermediate pipe, and the other end is in contact with the first valve sleeve, and the intermediate pipe is away from the inside of one end of the male valve seat A valve nozzle is installed, a pressure relief valve core is installed in the valve nozzle, and a third spring is installed between the pressure relief valve core and the sealing joint.

Further, an O-ring and a polytetrafluoroethylene material are used for sealing between the male valve seat and the sealing joint.

Further, the female port includes a locking sleeve, an intermediate sleeve and a female valve seat, the intermediate sleeve is screwed into the female valve seat, and an inner cavity formed by the intermediate sleeve and the female valve seat is provided. There is an ejector rod, and the top end of the ejector rod penetrates into the third valve sleeve and the second valve sleeve in turn, while the third valve sleeve is screwed on the second valve sleeve, and the outer wall of the ejector rod is sleeved A second spring is provided, the second spring is arranged between the third valve sleeve and the ejector rod, one end of the second spring is in contact with the end cover of the tail end of the ejector rod, and the other end is in contact with the first The three valve sleeves are in contact, the locking sleeve is fixed on the intermediate sleeve and the female valve seat through a spring clip, and screws are radially installed on the locking sleeve.

Further, an O-ring and a polytetrafluoroethylene material are used for sealing between the female valve seat and the ejector rod.

Further, the sealing between the intermediate sleeve and the locking sleeve and the second valve sleeve, the sealing between the intermediate sleeve and the female valve seat, and the sealing between the second valve sleeve and the third valve sleeve are all Sealed with O-ring and Teflon material.

Further, the seal between the male connector and the locking sleeve, and the seal between the first valve sleeve and the valve nozzle and the male connector are all sealed with O-rings and PTFE materials.

Compared with the prior art, the novel single port of the present invention has the following advantages: the novel single port is suitable for the hydraulic connection of any hydraulic breaking tool and the oil pump to carry out rescue work. The single interface can be equipped with fire brigades, armed police forces, highways, quick response rescue teams, industrial enterprises, etc.

(1) The single interface is sealed with a combination of O-ring and PTFE, so that the sealing effect is good;

(2) Due to the combination of O-ring and PTFE sealing, the processing is simpler;

(3) Due to the use of O-ring and PTFE combined sealing, the performance is more reliable and the failure rate is reduced;

(4) The connection of yin and yang ports adopts screw connection, which is convenient and quick;

(5) The female connection sleeve is simplified, and the locking sleeve is changed from two parts into one part, which makes the processing easier.

Description of drawings

The accompanying drawings that constitute a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the mutual insertion structure diagram of the female mouth and male mouth described in the embodiment of the utility model;

Fig. 2 is the structural representation of the female mouth according to the embodiment of the present utility model;

Fig. 3 is the exploded schematic diagram of the assembly of the female mouth according to the embodiment of the present utility model;

Fig. 4 is the structural schematic diagram of the male mouth according to the embodiment of the present utility model;

FIG. 5 is an exploded schematic diagram of the assembly of the male port according to the embodiment of the present invention.

Description of reference numbers:

1. Male valve seat; 2. Sealing joint; 3. Intermediate pipe; 4. First spring; 5. Male joint; 6. Screw; 7. Locking sleeve; 8. Intermediate sleeve; 9. Second spring; 10 , female valve seat; 11, third spring; 12, pressure relief valve core; 13, valve nozzle; 14, first valve sleeve; 15, ejector rod; 16, second valve sleeve; 17, third valve sleeve.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Fig. 1-Fig. 5, the utility model is a novel single port, including a female port and a male port, when the female port and the male port are connected, the screw 6 provided on the female port and the spiral groove provided on the male port are used for threading The female port and the male port can be detachably connected. After the male port and the female port are butted and connected, the ejector rod 15 in the female port extends into the male port, and at the same time, the small platform at the top of the ejector rod 15 pushes back the pressure relief valve core. 12. The third spring 11 behind the pressure relief valve core 12 is compressed by force. At this time, the seal between the pressure relief valve core 12 and the valve nozzle 13 is opened, and the high-pressure oil and low-pressure oil circuit of the male core portion pass through the valve nozzle 13 The gaps between the middle hole, the middle pipe 3 and the middle sleeve 8 are communicated in advance, and the oil pressure in the single port drops rapidly to achieve the purpose of plugging and pulling under pressure.

After the female port and the male port are connected, the male connector 5 provided on the male port is inserted into the locking sleeve 7 of the female port, and the middle sleeve 8 of the female port is inserted into the male connector 5, and the middle sleeve 8 is inserted into the male connector 5. The sleeve 8 realizes the compression of the first spring 4 by pushing the first valve sleeve 14 of the male port backward. At this time, the high pressure oil passes through the inner hole of the male valve seat 1, the inner hole of the sealing joint 2, the inner hole of the intermediate pipe 3, The inner hole of the ejector rod 15 and the inner hole of the female valve seat 10 flow; on the contrary, the high pressure oil flows through the inner hole of the female valve seat 10 , ejector rod 15 , intermediate pipe 3 , sealing joint 2 and male valve seat 1 . The low pressure oil flows through the male valve seat 1, the male joint 5, the groove at the end of the first valve sleeve 14, the middle sleeve 8, and the inner hole of the female valve seat 10; otherwise, the low pressure oil passes through the female valve seat 10, the middle The sleeve 8, the groove at the end of the valve sleeve, the male joint 5, and the inner hole of the male valve seat 1 circulate. After connecting the female and male ports, the internal oil circuit of the single port communicates with high pressure oil, and the external oil circuit communicates with low pressure oil.

The male port includes a male valve seat 1 and a male joint 5. The outer wall of the male joint 5 is provided with a spiral groove incision that is matched and connected with a screw 6, and the male joint 5 is screwed on the male valve seat 1. Inside, the inner cavity formed by the male valve seat 1 and the male joint 5 is provided with a sealing joint 2, an intermediate pipe 3 and a first valve sleeve 14, and the first valve sleeve 14 is installed on the male joint 5 away from One end of the male valve seat 1 and one end of the intermediate pipe 3 are installed in the first valve sleeve 14 , and the other end is connected to the sealing joint 2 , and the sealing joint 2 is far away from the middle pipe 3 . One end is connected to the male valve seat 1, the outer wall of the intermediate pipe 3 is sleeved with a first spring 4, one end of the first spring 4 is in contact with the rear end of the intermediate pipe 3, and the other end is in contact with the The first valve sleeve 14 is in contact with the first valve sleeve 14, and a valve nozzle 13 is installed inside the end of the intermediate pipe 3 away from the male valve seat 1, and a pressure relief valve core 12 is installed in the valve nozzle 13, and the pressure relief valve core is installed. A third spring 11 is installed between 12 and the sealing joint 2 . In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for description purposes, and should not be interpreted as indicating or implying relative importance or implicitly indicating the indicated technical features. quantity. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature.

Between the male valve seat 1 and the sealing joint 2, an O-ring and a polytetrafluoroethylene material are used for sealing, so that the sealing is more reliable.

The female port includes a locking sleeve 7, an intermediate sleeve 8 and a female valve seat 10, the intermediate sleeve 8 is screwed into the female valve seat 10, and the intermediate sleeve 8 and the female valve seat 10 are formed. An ejector rod 15 is arranged in the inner cavity, and the top end of the ejector rod 15 penetrates into the third valve sleeve 17 and the second valve sleeve 16 in turn, while the third valve sleeve 17 is screwed on the second valve sleeve. 16, the outer wall of the ejector rod 15 is sleeved with a second spring 9, the second spring 9 is arranged between the third valve sleeve 17 and the ejector rod 15, and one end of the second spring 9 It is in contact with the end cover of the tail end of the ejector rod 15, and the other end is in contact with the third valve sleeve 17. The locking sleeve 7 is fixed on the intermediate sleeve 8 and the female valve seat 10 through a spring clip, and at the same time Screws 6 are radially installed on the locking sleeve 7 .

Between the female valve seat 10 and the ejector rod 15, an O-ring and a polytetrafluoroethylene material are used for sealing, so that the sealing is more reliable.

The sealing between the intermediate sleeve 8 and the locking sleeve 7 and the second valve sleeve 16, the sealing between the intermediate sleeve 8 and the female valve seat 10, and the sealing between the second valve sleeve 16 and the third valve sleeve 17 The seals between the parts are sealed with O-rings and PTFE materials. The soft seal of this rubber part is more reliable than the hard seal between metal parts, and the processing is simpler.

The seal between the male joint 5 and the locking sleeve 7, and the seal between the first valve sleeve 14 and the valve nozzle 13 and the male joint 5 are all sealed with O-rings and PTFE materials. The soft seal of rubber parts is more reliable than the hard seal between metal parts, and the processing is simpler.

In the actual working process, when the male and female ports are connected, the screw 6 on the female port locking sleeve 7 is screwed with the spiral groove on the male connector 5, so that the female port and the male port are connected. After the male port and the female port are butted and connected, the ejector rod 15 in the female port extends into the male port, and at the same time, the small platform at the top of the ejector rod 15 pushes back the pressure relief valve core 12, and the third spring 11 behind the pressure relief valve core 12 is compressed by force. , at this time, the seal between the pressure relief valve core 12 and the valve nozzle 13 is opened, and the high-pressure oil and the low-pressure oil circuit of the male core are communicated in advance through the gap between the middle hole of the valve nozzle 13, the intermediate pipe 3 and the intermediate sleeve 8 , the oil pressure in the single port drops rapidly to achieve the purpose of plugging under pressure.

After the male and female ports are connected, the male connector 5 is inserted into the locking sleeve 7, the middle sleeve 8 is inserted into the male connector 5, the middle sleeve 8 pushes the first valve sleeve 14 back, and the first spring 4 is compressed by force. At this time, the high-pressure oil circulates through the inner hole of the male valve seat 1, the inner hole of the sealing joint 2, the inner hole of the intermediate pipe 3, the inner hole of the ejector rod 15, and the inner hole of the female valve seat 10; Flow through the inner hole of the female valve seat 10 , the ejector rod 15 , the intermediate pipe 3 , the sealing joint 2 , and the male valve seat 1 . The low pressure oil flows through the male valve seat 1, the male joint 5, the groove at the end of the first valve sleeve 14, the middle sleeve 8, and the inner hole of the female valve seat 10; otherwise, the low pressure oil passes through the female valve seat 10, the middle The sleeve 8 , the groove at the end of the first valve sleeve 14 , the male joint 5 , and the inner hole of the male valve seat 1 communicate with each other.

The axial position of the movement of the internal parts of the female port and the male port is limited by the intermediate pipe 3 and the intermediate sleeve 8, so that the processing is simple, the oil passage is smooth, and the structure is reliable. After the female port and the male port are connected, the first valve sleeve 14 of the male port moves backward, the first spring 4 is compressed by force, and the compression distance is limited by the length of the intermediate sleeve 8 . Likewise, the second valve sleeve 16 of the female port is pressed back, the second spring 9 is compressed, and the compressed distance is limited by the length of the intermediate pipe 3 . This limitation allows accurate positioning of the movement of the first valve sleeve 14 and the second valve sleeve 16 .

Rotate the locking sleeve 7 in the opposite direction, so that the screw 6 on it is loosened along the spiral groove on the male connector 5, that is, the connection of the male and female ports can be separated.

After the female port is separated, the second spring 9 of the female port pushes the second valve sleeve 16 and the third valve sleeve 17 forward, and the O-ring on the outer circle of the second valve sleeve 16 connects the second valve sleeve 16 and the middle sleeve. 8. Sealing; the combined seal on the inner hole of the second valve sleeve 16 seals the second valve sleeve 16 and the ejector rod 15, so that the hydraulic oil in the female port will not leak after the female port and the male port are separated.

After the male port is separated, the first spring 4 pushes the first valve sleeve 14 forward until the O-ring on the first valve sleeve 14 fits and seals with the inner cone hole of the male joint 5; the third spring 11 pushes the pressure relief valve core 12 Valve, the pressure relief valve core 12 pushes the valve nozzle 13, the PTFE material in the valve nozzle 13 seals the valve nozzle 13 and the pressure relief valve core 12, and the combined seal in the intermediate pipe 3 makes the intermediate pipe 3 and the valve nozzle 13 sealed It is sealed between the yin and yang ports, so that the hydraulic oil will not leak after the yin and yang ports are separated.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (7)

1. A novel single interface is characterized in that: including cloudy mouth and positive mouth, screw (6) through setting up on the cloudy mouth and the positive mouth carry out threaded connection through the helicla flute that sets up on the screw (6) that sets up on the cloudy mouth, cloudy mouth and positive mouth can realize dismantling the connection, after cloudy mouth and positive mouth butt joint, positive joint (5) that set up on the positive mouth insert in the lock sleeve (7) of cloudy mouth, simultaneously cover (8) insert in the middle of the cloudy mouth in positive joint (5), just cover (8) in the middle retreat through first valve barrel (14) that promote positive mouth realize the compression of first spring (4), cloudy mouth and positive mouth after the connection, the inside oil circuit of single-interface communicates high pressure oil, and the outside oil circuit communicates low pressure oil.

2. The novel single interface of claim 1, wherein: the male opening comprises a male opening valve seat (1) and a male connector (5), a spiral groove notch which is connected with a screw (6) in a matched mode is formed in the outer wall of the male connector (5), the male connector (5) is screwed in the male opening valve seat (1), a sealing connector (2), a middle pipe (3) and a first valve sleeve (14) are arranged in an inner cavity formed by the male opening valve seat (1) and the male connector (5), the first valve sleeve (14) is installed at one end, far away from the male opening valve seat (1), of the male connector (5), one end of the middle pipe (3) is installed in the first valve sleeve (14), the other end of the middle pipe is connected with the sealing connector (2), one end, far away from the middle pipe (3), of the sealing connector (2) is connected with the male opening valve seat (1), and a first spring (4) is sleeved on the outer wall of the middle pipe (3), one end of the first spring (4) is in contact with the tail end of the middle pipe (3), the other end of the first spring is in contact with the first valve sleeve (14), the middle pipe (3) is far away from the inner part of one end of the male valve seat (1) and is provided with a valve nozzle (13), a pressure relief valve core (12) is installed in the valve nozzle (13), and a third spring (11) is installed between the pressure relief valve core (12) and the sealing joint (2).

3. The novel single interface of claim 2, wherein: the male valve seat (1) and the sealing joint (2) are sealed by adopting an O-shaped ring and polytetrafluoroethylene materials.

4. The novel single interface of claim 2, wherein: the female port comprises a locking sleeve (7), a middle sleeve (8) and a female port valve seat (10), the middle sleeve (8) is sleeved and screwed in the female port valve seat (10), a push rod (15) is arranged in an inner cavity formed by the middle sleeve (8) and the female port valve seat (10), the top end of the push rod (15) sequentially penetrates into a third valve sleeve (17) and a second valve sleeve (16), meanwhile, the third valve sleeve (17) is screwed on the second valve sleeve (16), a second spring (9) is sleeved on the outer wall of the push rod (15), the second spring (9) is arranged between the third valve sleeve (17) and the push rod (15), one end of the second spring (9) is in contact with an end cover at the tail end of the push rod (15), the other end of the second spring is in contact with the third valve sleeve (17), the locking sleeve (7) is fixed on the middle sleeve (8) and the female port valve seat (10) through a clamping ring, and meanwhile, a screw (6) is radially arranged on the locking sleeve (7).

5. The novel single interface of claim 4, wherein: and an O-shaped ring and polytetrafluoroethylene materials are adopted for sealing between the female valve seat (10) and the ejector rod (15).

6. The novel single interface of claim 4, wherein: the sealing between the middle sleeve (8) and the locking sleeve (7) and the second valve sleeve (16), the sealing between the middle sleeve (8) and the female valve seat (10), and the sealing between the second valve sleeve (16) and the third valve sleeve (17) are all sealed by adopting O-shaped rings and polytetrafluoroethylene materials.

7. The novel single interface of claim 4, wherein: the sealing between the male joint (5) and the locking sleeve (7) and the sealing between the first valve sleeve (14) and the valve nozzle (13) and the male joint (5) are sealed by adopting O-shaped rings and polytetrafluoroethylene materials.

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