阅读说明：本技术 电液复合管 (Electrohydraulic composite pipe ) 是由 李海 张文亮 马平安 曾庆威 于 2019-08-29 设计创作，主要内容包括：本发明公开了一种电液复合管,属于液压技术领域。包括管道本体、第一接线螺栓和第二接线螺栓,管道本体用于传输液压油,管道本体的管壁上设有至少一个电解液腔体,电解液腔体内充满电解液且每个电解液腔体均为密封腔体；每个电解液腔体的一端均开设有第一接口,第一接口内设有第一接线螺栓,第一接线螺栓的一端位于电解液腔体内,另一端用于与接线盒电连接；每个电解液腔体的另一端均开设有第二接口,第二接口内设有第二接线螺栓,第二接线螺栓的一端位于电解液腔体内,另一端用于与传感器电连接。采用该电液复合管,节省了敷设信号电缆所需的时间,减少了施工量,提高了施工效率。(The invention discloses an electro-hydraulic composite pipe, and belongs to the technical field of hydraulic pressure. The hydraulic oil pipeline comprises a pipeline body, a first wiring bolt and a second wiring bolt, wherein the pipeline body is used for transmitting hydraulic oil, at least one electrolyte cavity is arranged on the pipe wall of the pipeline body, the electrolyte cavity is filled with electrolyte, and each electrolyte cavity is a sealed cavity; one end of each electrolyte cavity is provided with a first interface, a first wiring bolt is arranged in each first interface, one end of each first wiring bolt is positioned in each electrolyte cavity, and the other end of each first wiring bolt is electrically connected with a wiring box; the other end of each electrolyte cavity is provided with a second interface, a second wiring bolt is arranged in each second interface, one end of each second wiring bolt is located in each electrolyte cavity, and the other end of each second wiring bolt is electrically connected with the corresponding sensor. By adopting the electro-hydraulic composite pipe, the time for laying signal cables is saved, the construction amount is reduced, and the construction efficiency is improved.)

1. The electro-hydraulic composite pipe is characterized in that the electro-hydraulic composite pipe (100) comprises a pipeline body (10), at least one first wiring bolt (30) and at least one second wiring bolt (40), the pipeline body (10) is used for transmitting hydraulic oil, at least one electrolyte cavity (20) arranged along the length direction of the pipeline body (10) is arranged on the pipe wall of the pipeline body (10), the electrolyte cavity (20) is filled with electrolyte, and each electrolyte cavity (20) is a sealed cavity;

one end of each electrolyte cavity (20) is provided with a first interface (21), the first interface (21) is internally provided with a first wiring bolt (30), one end of the first wiring bolt (30) is positioned in the electrolyte cavity (20), the other end of the first wiring bolt (30) is used for being electrically connected with a junction box (200), and the first wiring bolt (30) is hermetically connected with the first interface (21);

every a second interface (22) has all been seted up to the other end of electrolyte cavity (20), be equipped with in second interface (22) second wiring bolt (40), the one end of second wiring bolt (40) is located in electrolyte cavity (20), the other end of second wiring bolt (40) is used for being connected with sensor (300) electricity, second wiring bolt (40) with second interface (22) sealing connection.

2. The electrohydraulic composite pipe according to claim 1, wherein sealing plugs (50) are arranged at two ends of the electrolyte cavity (20), the diameter of each sealing plug (50) is matched with that of the electrolyte cavity (20), external threads are arranged on the outer surface of each sealing plug (50), and internal threads matched with the external threads are arranged on the inner wall of each electrolyte cavity (20).

3. The electrohydraulic composite pipe according to claim 1, wherein the first wiring bolt (30) comprises a first screw rod (31) and a first nut (32) sleeved on the first screw rod (31), threads are arranged at two ends of the first screw rod (31), one end of the first screw rod (31) penetrates through the first interface (21) and is arranged in the electrolyte cavity (20), the first screw rod (31) is in threaded sealing connection with the first interface (21), and the first nut (32) is sleeved outside the other end of the first screw rod (31).

4. The electrohydraulic composite tube according to claim 3, characterized in that the first and second terminal bolts (30, 40) are identical in construction.

5. The electrohydraulic composite tube according to claim 3, characterized in that the electrohydraulic composite tube (100) further comprises at least one first lead (60), one end of the at least one first lead (60) is electrically connected with the junction box (200), and the other end of the at least one first lead (60) is crimped to the other end of the first screw (31) through the first nut (32).

6. The electro-hydraulic composite pipe of claim 1, further comprising at least one electrolyte compensation assembly (70), the electrolyte compensation assembly (70) comprising an electrolyte compensation pipe (71) and an electrolyte compensator (72);

every electrolyte compensation interface (23) have all been seted up on electrolyte cavity (20), the one end of electrolyte compensating pipe (71) with electrolyte compensation interface (23) intercommunication, the other end of electrolyte compensating pipe (71) with electrolyte compensator (72) intercommunication, electrolyte compensator (72) be used for to carry electrolyte in electrolyte cavity (20).

7. The electrohydraulic composite tube according to claim 6, wherein the electrolyte compensator (72) comprises a housing (721), and a piston (722) and a spring (723) which are arranged in the housing (721), the piston (722) divides the interior of the housing (721) into a first cavity (S1) and a second cavity (S2), the first cavity (S1) and the second cavity (S2) are not communicated with each other, the spring (723) is arranged in the first cavity (S1), one end of the spring (723) is fixedly connected with the housing (721), the other end of the spring (723) is fixedly connected with the piston (722), the second cavity (S2) is used for storing electrolyte, and an electrolyte output interface (721a) communicated with the second cavity (S2) is arranged on the housing (721).

8. The electrohydraulic composite tube of claim 6, wherein the electrolyte compensating assemblies (70) are disposed in one-to-one correspondence with the electrolyte chambers (20).

9. The electro-hydraulic composite pipe of claim 1, wherein the sensor (300) is at least one of a temperature sensor, a flow sensor, or a pressure sensor.

10. The electrohydraulic composite tube of claim 1, wherein the electrolyte is a sodium hydroxide solution.

Technical Field

The invention relates to the technical field of hydraulic systems, in particular to an electro-hydraulic composite pipe.

Background

At present, when a hydraulic system is designed, sensors such as pressure, flow and temperature are usually arranged at the middle section of a pipeline aiming at a pipeline body with a long distance, so that the real-time monitoring of the state in the pipeline body is realized. Therefore, in construction, a signal cable is usually laid along the direction of the pipeline body to realize the electrical signal transmission between the pump station side electrical control system and the on-pipeline sensor.

However, in the process of laying the signal cables, the wall needs to be penetrated again for punching, so that the signal cables can be laid along the direction of the pipeline body, the construction amount is increased, and time and labor are wasted. And for the pipeline body with a longer distance, the construction amount is larger, and the construction time is longer.

Disclosure of Invention

The embodiment of the invention provides an electro-hydraulic composite pipe, which saves the time required by laying signal cables, reduces the construction amount and improves the construction efficiency. The technical scheme is as follows:

the invention provides an electro-hydraulic composite pipe which comprises a pipeline body, at least one first wiring bolt and at least one second wiring bolt, wherein the pipeline body is used for transmitting hydraulic oil, at least one electrolyte cavity arranged along the length direction of the pipeline body is arranged on the pipe wall of the pipeline body, electrolyte is filled in the electrolyte cavity, and each electrolyte cavity is a sealed cavity;

one end of each electrolyte cavity is provided with a first interface, the first interface is internally provided with the first wiring bolt, one end of the first wiring bolt is positioned in the electrolyte cavity, the other end of the first wiring bolt is used for being electrically connected with a wiring box, and the first wiring bolt is hermetically connected with the first interface;

every a second interface has all been seted up to the other end of electrolyte cavity, be equipped with in the second interface second wiring bolt, the one end of second wiring bolt is located in the electrolyte cavity, the other end of second wiring bolt is used for being connected with the sensor electricity, second wiring bolt with second interface sealing connection.

Furthermore, both ends of the electrolyte cavity are provided with sealed plugs, the outer surface of each sealed plug is provided with an external thread, and the inner wall of the electrolyte cavity is provided with an internal thread matched with the external thread.

Further the first wiring bolt comprises a first screw rod and a first nut, the first screw rod is sleeved with the first nut, threads are arranged at two ends of the first screw rod, one end of the first screw rod penetrates through the first interface and is arranged in the electrolyte cavity, the first screw rod is in threaded sealing connection with the first interface, and the first nut is sleeved outside the other end of the first screw rod.

Further, the first and second binding bolts have the same structure.

The electro-hydraulic composite pipe further comprises at least one first lead, one end of the at least one first lead is electrically connected with the junction box, and the other end of the at least one first lead is in crimping connection with the other end of the first screw through the first nut.

The electrolyte composite pipe further comprises at least one electrolyte compensation component, and the electrolyte compensation component comprises an electrolyte compensation pipe and an electrolyte compensator;

every all seted up an electrolyte compensation interface on the electrolyte cavity, the one end of electrolyte compensating pipe with electrolyte compensation interface intercommunication, the other end of electrolyte compensating pipe with electrolyte compensator intercommunication, electrolyte compensator be used for to carry electrolyte in the electrolyte cavity.

The electrolyte compensator further comprises a shell, a piston and a spring, wherein the piston and the spring are arranged in the shell, the piston divides the shell into a first cavity and a second cavity, the first cavity and the second cavity are not communicated with each other, the spring is arranged in the first cavity, one end of the spring is fixedly connected with the shell, the other end of the spring is fixedly connected with the piston, the second cavity is used for storing electrolyte, and an electrolyte output interface communicated with the second cavity is formed in the shell.

And furthermore, the number of the electrolyte compensation assemblies is in one-to-one correspondence with the electrolyte cavities.

Further the sensor is at least one of a temperature sensor, a flow sensor or a pressure sensor.

Further, the electrolyte is a sodium hydroxide solution.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

through this internal transmission hydraulic oil of pipeline at the compound pipeline of electricity liquid, open at least one electrolyte cavity simultaneously on the pipe wall of pipeline body, be full of electrolyte in the electrolyte cavity, and the one end of first wiring bolt and second wiring bolt all is located the electrolyte cavity, with the electrolyte contact, electrolyte can play electrically conductive effect for first wiring bolt and second wiring bolt electrically switch on, every electrolyte cavity is equivalent to a signal cable. Through the other end and the terminal box electricity with first wiring bolt to be connected sensor and second wiring bolt's the other end electricity, can detect the signal with the sensor and send to the terminal box side through the compound pipe of electricity liquid, realize detecting the this internal state of pipeline, in order to replace traditional signal cable. Therefore, the signal cable does not need to be laid independently again, the time for laying the signal cable is saved, the construction amount is reduced, and the construction efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a partial structural sectional view of an electro-hydraulic composite pipe provided by an embodiment of the invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a schematic diagram of an electro-hydraulic composite pipe according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of portion B of FIG. 1;

FIG. 5 is a schematic structural view of a second terminal stud according to an embodiment of the present invention;

FIG. 6 is a partial schematic structural view of another electro-hydraulic composite pipe provided by the embodiment of the invention;

fig. 7 is a schematic structural diagram of an electrolyte compensator according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a partial structural sectional view of an electro-hydraulic composite pipe according to an embodiment of the present invention, and fig. 2 is a view taken along the direction a of fig. 1, and as shown in fig. 1 and 2, the electro-hydraulic composite pipe 100 includes a pipe body 10, at least one first terminal bolt 30, and at least one second terminal bolt 40. The inner cavity 10a of the pipeline body 10 is used for transmitting hydraulic oil, at least one electrolyte cavity 20 arranged along the length direction of the pipeline body 10 is arranged on the pipe wall of the pipeline body 10, the electrolyte cavity 20 is filled with electrolyte, and each electrolyte cavity 20 is a sealed cavity.

A first interface 21 is provided at one end of each electrolyte cavity 20, a first connection bolt 30 is provided in the first interface 21, one end of the first connection bolt 30 is located in the electrolyte cavity 20, and the first connection bolt 30 is connected with the first interface 21 in a sealing manner.

A second interface 22 is opened at the other end of each electrolyte cavity 20, a second connection bolt 40 is arranged in the second interface 22, one end of the second connection bolt 40 is located in the electrolyte cavity 20, and the second connection bolt 40 is connected with the second interface 22 in a sealing mode.

Fig. 3 is a schematic use view of an electro-hydraulic composite pipe according to an embodiment of the present invention, as shown in fig. 3, in conjunction with fig. 1, the other end of the first connection bolt 30 is used to electrically connect with the junction box 200, the other end of the second connection bolt 40 is used to electrically connect with the sensor 300, and one end of the pipeline body 10 is communicated with the pump station 400.

According to the embodiment of the invention, hydraulic oil is transmitted in the pipeline body of the electro-hydraulic composite pipeline, at least one electrolyte cavity is formed in the pipe wall of the pipeline body, the electrolyte cavity is filled with electrolyte, one end of each of the first wiring bolt and the second wiring bolt is positioned in the electrolyte cavity and is in contact with the electrolyte, the electrolyte can play a role in conducting electricity, so that the first wiring bolt and the second wiring bolt are electrically conducted, and each electrolyte cavity is equivalent to one signal cable. Through the other end and the terminal box electricity with first wiring bolt to be connected sensor and second wiring bolt's the other end electricity, can detect the signal with the sensor and send to the terminal box side through the compound pipe of electricity liquid, realize detecting the this internal state of pipeline, in order to replace traditional signal cable. Therefore, the signal cable does not need to be laid independently again, the time for laying the signal cable is saved, the construction amount is reduced, and the construction efficiency is improved.

In the present embodiment, the duct body 10 may be a hose.

Alternatively, the electrolyte may be a sodium hydroxide solution.

In other implementations of the present invention, the electrolyte may be other solutions capable of conducting electricity, which is not limited in the present invention.

Further, the sensor 300 is at least one of a temperature sensor, a flow sensor, or a pressure sensor.

When the sensor 300 is a temperature sensor, it can be used to detect the temperature of the hydraulic oil in the pipe body 10. When the sensor 300 is a flow sensor, it can be used to detect the flow of the hydraulic oil in the pipe body 10, and when the sensor 300 is a pressure sensor, it can be used to detect the pressure in the hydraulic oil in the pipe body 10.

In a specific test, the sensor 300 may communicate with the inside of the pipe body 10.

Further, referring to fig. 1, both ends of the electrolyte cavity 20 are provided with sealing plugs 50, the outer surface of each sealing plug 50 is provided with an external thread, and the inner wall of the electrolyte cavity 20 is provided with an internal thread matched with the external thread and is connected with the external thread through a thread, so that sealing is realized.

Wherein, the diameter of the sealing plug 50 is matched with the diameter of the electrolyte cavity 20.

Fig. 4 is an enlarged view of part B of fig. 1, and as shown in fig. 4, the first terminal bolt 30 includes a first screw 31 and a first nut 32 fitted over the first screw 31. Both ends of first screw rod 31 all are equipped with the screw thread, and first interface 21 setting is passed to the one end of first screw rod 31 in electrolyte cavity 20, and first screw rod 31 and first interface 21 thread sealing connection, and first nut 32 cover is established outside the other end of first screw rod 31, realizes sealedly through threaded connection.

Further, referring to fig. 3, the electrohydraulic composite tube further includes at least one first conductive wire 60, and one end of the at least one first conductive wire 60 is electrically connected to the terminal box 200. The other end of the at least one first wire 60 is pressed against the other end of the first screw 31 by the first nut 32, so that the first terminal bolt 30 is electrically connected to the terminal box 200.

In the present embodiment, the first conductive wires 60 are disposed in one-to-one correspondence with the first terminal bolts 30.

Further, the first and second binding bolts 30 and 40 have the same structure.

Fig. 5 is a schematic structural diagram of a second terminal bolt according to an embodiment of the present invention, and as shown in fig. 5, the second terminal bolt 40 includes a second screw 41 and a second nut 42 sleeved on the second screw 41.

In the present embodiment, the number of the electrolyte chambers 20, the first terminal bolts 30 and the second terminal bolts 40 may be set according to the type and number of the sensors.

Alternatively, the sensor 300 includes three types of two-wire, three-wire, and four-wire. For example, when sensor 300 is a three-wire system, sensor 300 includes three terminals. At this time, three electrolyte chambers 20, three first terminal bolts 30, and three second terminal bolts 40 may be provided. Three terminals of the sensor 300 are respectively connected with three second terminal bolts 40 by using wires, and the wires are pressed on the second screw rods 41 by second nuts 42 so as to realize the electrical connection between the sensor 300 and the second terminal bolts 40. Signals from the three terminals of the sensor 300 are transmitted to the three first terminal bolts 30 through the electrolyte and then transmitted to the terminal block terminals through the three first conductive wires 60, respectively.

Fig. 6 is a partial structural schematic diagram of another electro-hydraulic composite pipe provided by an embodiment of the invention, and as shown in fig. 6, the electro-hydraulic composite pipe 100 further includes at least one electrolyte compensation assembly 70, and the electrolyte compensation assembly 70 includes an electrolyte compensation pipe 71 and an electrolyte compensator 72. Electrolyte compensation assembly 70 may replenish electrolyte chamber 20 with electrolyte when a leak develops in electrolyte chamber 20.

At least one electrolyte compensation interface 23 (see fig. 1) is arranged on each electrolyte cavity 20, one end of an electrolyte compensation pipe 71 is communicated with the electrolyte compensation interface 23, the other end of the electrolyte compensation pipe 71 is communicated with an electrolyte compensator 72, and the electrolyte compensator 72 is used for conveying electrolyte into the electrolyte cavity 20.

Fig. 7 is a schematic structural diagram of an electrolyte compensator according to an embodiment of the present invention, and as shown in fig. 7, the electrolyte compensator 72 includes a housing 721, and a piston 722 and a spring 723 which are disposed in the housing 721. The piston 722 divides the inside of the housing 721 into a first chamber S1 and a second chamber S2. The first cavity S1 and the second cavity S2 are not communicated with each other, the spring 723 is disposed in the first cavity S1, one end of the spring 723 is fixedly connected to the housing 721, the other end of the spring 723 is fixedly connected to the piston 722, the second cavity S2 is used for storing electrolyte, and the housing 721 is provided with an electrolyte output port 721a communicated with the second cavity S2.

The other end of the electrolyte compensation pipe 71 communicates with the electrolyte output port 721 a.

When the electrolyte compensator is used specifically, the electrolyte may be injected into the electrolyte cavity 20 through the electrolyte compensation interface 23, and then the electrolyte may be injected into the second cavity S2 of the electrolyte compensator 72 through the electrolyte output interface 721a, so that the spring 723 is in a compressed state. The electrolyte compensation port 23 is then communicated with the electrolyte outlet port 721a by the electrolyte compensation pipe 71. When the electrolyte in the electrolyte chamber 20 leaks, under the elastic force of the spring 723, the piston 722 presses the electrolyte in the second chamber S2, so that the electrolyte in the second chamber S2 is output from the electrolyte output port 721a, passes through the electrolyte compensation pipe 71 and the electrolyte compensation port 23, and is injected into the electrolyte chamber 20.

Optionally, the electrolyte compensation assemblies 70 are disposed in one-to-one correspondence with the electrolyte cavities 20.

As shown in fig. 1 and 6, in the present embodiment, the electrohydraulic composite tube 100 includes two electrolyte chambers 20 and at least two sets of electrolyte compensation assemblies 70, and each set of electrolyte compensation assembly 70 is used for compensating electrolyte in one electrolyte chamber 20.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.