Hydraulic pipe joint with decompression self-locking function

Abstract

The utility model relates to the technical field of connectors, in particular to a hydraulic pipe joint with a pressure loss self-locking function, which comprises a connector, a conveying mechanism is mounted on the connector and comprises two conveying grooves, the two conveying grooves are communicated through a plurality of connecting grooves respectively, a leather plug is slidably connected in one conveying groove, and the other leather plug is slidably connected in the other conveying groove. A control mechanism is installed on the outer side of the connector and comprises electric push rods, the two electric push rods are installed on the outer side of the connector, a controller is installed in the connector, a pressure sensor is installed on the controller, and the bottom of the pressure sensor extends into the conveying groove. A push plate is slidably connected to the center line of the connector through a movable groove, output shafts of the two electric push rods are perpendicularly connected with the two ends of the push plate, and the leather plug is connected with the push plate. And detection can be carried out when the oil pressure is not stable, so that the connector is locked and blocked, and equipment is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to a hydraulic pipe joint, specifically a hydraulic pipe joint with a self-locking function in case of pressure loss, belonging to the field of connector technology. Background Technology

[0002] Hydraulic pipe fittings and hose assemblies are the weakest link in the entire hydraulic system. In high-temperature, high-pressure and other continuous production applications, if the hydraulic hose assembly leaks or bursts, it will cause serious problems such as equipment malfunction, water leakage, and the leaking oil burning when exposed to high temperatures.

[0003] However, traditional connectors lack locking and protection components. When the oil pressure changes, the oil can still be delivered. When the pressure is insufficient to lift the hydraulic cylinder, the equipment may fall, thus causing a safety accident. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic pipe joint with a pressure loss self-locking function to solve the above problems. It can control the unidirectional flow of the connector and detect when the oil pressure is unstable, thereby locking and blocking the connector to prevent oil backflow from causing equipment damage.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a hydraulic pipe connector with a pressure loss self-locking function, comprising a connector, a conveying mechanism installed on the connector, the conveying mechanism including a conveying groove, conveying grooves provided inside both ends of the connector, the two conveying grooves being connected through multiple connecting grooves respectively, a rubber plug slidably connected inside one of the conveying grooves, a control mechanism installed on the outside of the connector, the control mechanism including electric push rods, two electric push rods installed on the outside of the connector, a controller installed inside the connector, a pressure sensor installed on the controller, the bottom of the pressure sensor extending into the conveying groove, a push plate slidably connected at the centerline of the connector through a movable groove, the output shafts of the two electric push rods being perpendicularly connected to both ends of the push plate, and the rubber plug being connected to the push plate.

[0006] Preferably, a slide rod is installed at the center of the connector, and the slide rod is slidably connected to the center of the connector via a compression spring. One end of the slide rod is perpendicularly connected to the center of one side of the rubber plug, and the center of the push plate is perpendicularly connected to the slide rod.

[0007] Preferably, the slide rod has a cylindrical "+" shaped structure, and the rubber stopper has a frustum-shaped structure.

[0008] Preferably, two sealing sleeves are installed at the center of the connector, and the slide rod is slidably connected to the two sealing sleeves.

[0009] Preferably, the two conveying grooves are in a "convex" shape structure, and the two conveying grooves are symmetrically distributed at both ends inside the connecting head.

[0010] Preferably, a protection mechanism is installed on the connecting head. The protection mechanism includes a toothed ring, and toothed rings are symmetrically installed on the outer sides of both ends of the connecting head.

[0011] Preferably, one end of the toothed ring extends into the connecting head, and a plurality of abutting springs are connected between the side wall of one end of the toothed ring and the inside of the connecting head and are evenly distributed in a ring shape. The toothed ring is slidably connected to the inside of the connecting head through the abutting springs.

[0012] Preferably, a plurality of bolts are vertically threadedly connected to the outer side walls of both ends of the connecting head, and one end of each of the plurality of bolts extends to the inside of the connecting head and abuts against the side wall of the toothed ring.

[0013] Preferably, the edges at both ends of the connecting head have a certain angle, and the outer side walls at both ends of the connecting head are in a hexagonal structure.

[0014] The beneficial effects of the present utility model are as follows: By installing the connecting head, the connection of the external oil pipe is realized. With the cooperation of the two conveying grooves and the connecting groove, it is beneficial for oil liquid transportation. Through the sliding connection of the leather plug, it is beneficial for the oil liquid to only flow in one direction and prevent the oil liquid from flowing back. At the same time, through the monitoring of the pressure sensor, when the oil pressure changes, the controller pulls the electric push rod, and then the push plate pulls the leather plug, and the leather plug blocks the conveying groove, making the oil liquid unable to be transported, reducing the occurrence of accidents. On the contrary, the electric push rod cannot control the push plate, and the leather plug can move freely, facilitating the one-way transportation of the oil liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the connection structure between the leather plug and the connecting head of the present utility model;

[0017] Figure 3 is a schematic diagram of the connection structure between the sliding rod and the leather plug of the present utility model;

[0018] Figure 4 is a schematic diagram of the connection structure between the toothed ring and the abutting spring of the present utility model.

[0019] In the figure: 1, connecting head; 2, conveying mechanism; 201, conveying groove; 202, leather plug; 203, sliding rod; 204, sealing sleeve; 205, compression spring; 206, connecting groove; 3, control mechanism; 301, electric push rod; 302, moving groove; 303, controller; 304, pressure sensor; 305, push plate; 4, protection mechanism; 401, bolt; 402, toothed ring; 403, abutting spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 As shown, a hydraulic pipe connector with a pressure loss self-locking function includes a connector 1, a conveying mechanism 2 mounted on the connector 1, the conveying mechanism 2 including a conveying groove 201, and conveying grooves 201 inside both ends of the connector 1. The two conveying grooves 201 are connected by multiple connecting grooves 206. A piston plug 202 is slidably connected inside one of the conveying grooves 201. A control mechanism 3 is mounted on the outside of the connector 1. The control mechanism 3 includes electric push rods 301. Two electric push rods 301 are mounted on the outside of the connector 1. A controller 303 is mounted inside the connector 1. A pressure sensor 304 is mounted on the controller 303. The bottom of the pressure sensor 304 extends into the conveying groove 201. A push plate 305 is slidably connected to the centerline of the connector 1 through a movable groove 302. The output shafts of the two electric push rods 301 are perpendicularly connected to both ends of the push plate 305. The piston plug 202 is connected to the push plate 305.

[0022] As a technical optimization of this utility model, a slide rod 203 is installed at the center of the connector 1. The slide rod 203 is slidably connected to the center of the connector 1 through a compression spring 205. One end of the slide rod 203 is perpendicularly connected to the center of one side of the plug 202. The center of the push plate 305 is perpendicularly connected to the slide rod 203. The cooperation between the compression spring 205 and the slide rod 203 facilitates the slide rod 203 to slide telescopically inside the connector 1, always maintaining contact with the plug 202, and enables the push plate 305 to drive and control the slide rod 203.

[0023] As a technical optimization of this utility model, the slide bar 203 is a cylindrical "+" shaped structure, and the plug 202 is a frustum-shaped structure, which facilitates the control of the sliding distance of the slide bar 203 and prevents it from slipping off. At the same time, the plug 202 seals the conveying groove 201 tightly and is not easily deformed.

[0024] As a technical optimization solution of the present utility model, two sealing sleeves 204 are installed at the center inside the connector 1, and the sliding rod 203 is slidably connected to the two sealing sleeves 204. By installing the sealing sleeves 204, it is beneficial to seal the sliding of the sliding rod 203, so that the hydraulic oil will not enter the compression spring 205 and the inner part of the movable groove 302.

[0025] As a technical optimization solution of the present utility model, the two conveying grooves 201 are in a "convex" shape structure, and the two conveying grooves 201 are symmetrically distributed at both ends inside the connector 1, which is beneficial to make the leather plug 202 block the conveying grooves 201 tightly, and after the leather plug 202 slides, the hydraulic oil can enter and be exported into the plurality of connecting grooves 206.

[0026] As a technical optimization solution of the present utility model, a protection mechanism 4 is installed on the connector 1. The protection mechanism 4 includes a toothed ring 402. Symmetrically distributed toothed rings 402 are respectively installed on the outer sides of both ends of the connector 1. By installing the toothed ring 402, it is beneficial for the connector 1 to be threadedly connected to the device. The toothed ring 402 abuts against the device, playing a role in increasing friction and preventing loosening.

[0027] As a technical optimization solution of the present utility model, one end of the toothed ring 402 extends into the connector 1, and a plurality of abutting springs 403 distributed at equal intervals in a ring shape are connected between the side wall of one end of the toothed ring 402 and the inside of the connector 1. The toothed ring 402 is slidably connected to the inside of the connector 1 through the abutting springs 403. By installing the plurality of abutting springs 403, it is beneficial for the toothed ring 402 to slide with elasticity, so that the toothed ring 402 always abuts against the device, and at the same time, the wear is reduced.

[0028] As a technical optimization solution of the present utility model, a plurality of bolts 401 are vertically threadedly connected to the outer side walls of both ends of the connector 1. One ends of the plurality of bolts 401 extend to the inside of the connector 1 and abut against the side wall of the toothed ring 402. By installing the bolts 401, it is beneficial to abut and limit the toothed ring 402, and after the connector 1 is stably connected, the toothed ring 402 is limited, so that the toothed ring 402 abuts against the device tightly and will not loosen.

[0029] As a technical optimization solution of the present utility model, both ends of the connector 1 have a certain angle at the edges, and the outer side walls of both ends of the connector 1 are in a hexagonal structure, which is beneficial for the connector 1 to be smoothly inserted and connected to the oil hole of the external device, and is convenient for a wrench to drive and control the connector 1.

[0030] In use, this invention first connects one end of the connector 1 to the hydraulic equipment via a thread, and then connects the pipe to the other end of the connector 1 via a thread. With the cooperation of the two conveying grooves 201 and the connecting groove 206, oil conveying is achieved. The toothed rings 402 at both ends of the connector 1 abut against the equipment and the side walls of the pipe. Then, by rotating multiple bolts 401, the bolts 401 abut against and limit the toothed rings 402, thereby causing the toothed rings 402 to abut against the equipment casing and the outside of the pipe, increasing friction and preventing the connector 1 from loosening and rotating. Under the pressure of the compression spring 205, the slide rod 203 drives the plug 202 to block the inside of the conveying groove 201, preventing oil backflow. When the oil is conveyed… Under certain pressure, the oil pushes the piston plug 202, which drives the slide rod 203 to slide free from the elastic force of the compression spring 205, allowing the oil to enter the connecting groove 206 and another conveying groove 201 for transportation. When the pressure sensor 304 detects no abnormality in the oil pressure, the output shafts of the two electric push rods 301 are in a free sliding state. When the oil pressure is abnormal, the controller 303 detects the signal and drives the two electric push rods 301 synchronously. The two electric push rods 301 pull the push plate 305, which causes the push plate 305 to drive the slide rod 203 to abut against the piston plug 202, thus blocking the inside of the conveying groove 201 and preventing the oil from being transported, thus playing a safety protection role.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic pipe fitting with a pressure loss self-locking function, comprising a connector (1), characterized in that: A conveying mechanism (2) is installed on the connector (1). The conveying mechanism (2) includes a conveying groove (201). The connector (1) has conveying grooves (201) inside both ends. The two conveying grooves (201) are connected by multiple connecting grooves (206). A rubber stopper (202) is slidably connected inside one of the conveying grooves (201). A control mechanism (3) is installed on the outside of the connector (1). The control mechanism (3) includes an electric push rod (301). There are two electric push rods (301), a controller (303) is installed inside the connector (1), a pressure sensor (304) is installed on the controller (303), the bottom of the pressure sensor (304) extends into the conveying groove (201), a push plate (305) is slidably connected to the center line of the connector (1) through the movable groove (302), the output shafts of the two electric push rods (301) are perpendicularly connected to both ends of the push plate (305), and the plug (202) is connected to the push plate (305).

2. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 1, characterized in that: A slide rod (203) is installed at the center of the connector (1). The slide rod (203) is slidably connected to the center of the connector (1) via a compression spring (205). One end of the slide rod (203) is perpendicularly connected to the center of one side of the rubber plug (202). The center of the push plate (305) is perpendicularly connected to the slide rod (203).

3. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 2, characterized in that: The slide bar (203) has a cylindrical "+" shaped structure, and the rubber stopper (202) has a frustum-shaped structure.

4. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 3, characterized in that: Two sealing sleeves (204) are installed at the center of the connector (1), and the slide rod (203) is slidably connected to the two sealing sleeves (204).

5. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 1, characterized in that: The two conveying channels (201) are convex in shape and are symmetrically distributed at both ends inside the connector (1).

6. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 1, characterized in that: A protective mechanism (4) is installed on the connector (1). The protective mechanism (4) includes a toothed ring (402). A symmetrically distributed toothed ring (402) is installed on the outer sides of both ends of the connector (1).

7. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 6, characterized in that: One end of the toothed ring (402) extends into the interior of the connector (1). A plurality of annularly distributed abutment springs (403) are connected between the side wall of one end of the toothed ring (402) and the interior of the connector (1). The toothed ring (402) is slidably connected to the interior of the connector (1) through the abutment springs (403).

8. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 7, characterized in that: Multiple bolts (401) are vertically threaded onto the outer walls of both ends of the connector (1), and one end of each bolt (401) extends to the inner side of the connector (1) and abuts against the side wall of the toothed ring (402).

9. A hydraulic pipe joint with a self-locking function in case of pressure loss as described in claim 1, characterized in that: The connector (1) has a certain angle at both ends of its edges, and the outer walls of both ends of the connector (1) are hexagonal structures.

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