CN214404997U - Locking-free hydraulic connector suitable for short-time connection - Google Patents
Locking-free hydraulic connector suitable for short-time connection Download PDFInfo
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- CN214404997U CN214404997U CN202023143761.2U CN202023143761U CN214404997U CN 214404997 U CN214404997 U CN 214404997U CN 202023143761 U CN202023143761 U CN 202023143761U CN 214404997 U CN214404997 U CN 214404997U
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Abstract
The utility model discloses a locking-free hydraulic joint suitable for short-time connection, which comprises a joint main body, an oil port self-pressing sleeve, a radial sealing element and an oil port sealing element; the joint main body comprises a first cylinder, a second cylinder and a third cylinder which are integrally connected; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; the extending end part of the first column body is provided with an oil port which is communicated with the middle oil duct; a sealing ring groove is formed in the peripheral surface of the second cylinder, a pressure containing cavity is formed between the second cylinder and the third cylinder, and the pressure containing cavity is communicated with the middle oil duct; the outer peripheral surface of the third cylinder is provided with an external thread; the oil port self-pressing sleeve is sleeved on the second column body, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second column body; the radial sealing element is arranged in the sealing ring groove; a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve and the hydraulic workpiece; the oil port sealing piece is arranged in the sealing ring groove. The utility model discloses practice thrift experimental preparation man-hour, alleviate operator intensity of labour.
Description
Technical Field
The utility model relates to a hydraulic pressure work piece test equipment technical field that dispatches from factory, more specifically the locking-free hydraulic joint who relates to that says so is applicable to the short-time connection.
Background
Hydraulic workpiece products such as hydraulic pumps, hydraulic motors, hydraulic valves, hydraulic oil cylinders and the like need to be subjected to performance tests before leaving factories to confirm that various performance indexes are qualified. The delivery test of the hydraulic workpiece is usually carried out on a special delivery test bed, each oil port of the hydraulic workpiece is connected to the test bed through a pipeline, and the hydraulic workpiece runs under a specified working condition, detects parameters such as pressure and flow and makes qualified interpretation.
For the hydraulic workpieces produced in large quantities, in order to improve the test efficiency, a special or general tool is generally required besides the optimization of the test flow, so that the hydraulic workpieces to be tested can be quickly clamped and disassembled on the test bed.
In the factory test of hydraulic products, hydraulic quick-change connectors are widely adopted. Hydraulic quick-change couplings have a male end and a female end, and are generally used by: the tail end of the test bed hydraulic oil pipe is installed with the female end of the quick-change connector in advance; before a tested product is transported to a test bed, a male end of a quick-change connector is mounted on a hydraulic oil port of the tested product in advance; after the tested product is transported to the test bed, the female end of the quick-change connector on the hydraulic oil pipe is inserted into the male end of the quick-change connector installed on the oil port of the tested product in a butt joint mode, and then the connection work of the tested product and the oil pipe of the test bed can be completed (in practical application, the installation positions of the male end and the female end of the quick-change connector can be exchanged, namely the male end of the quick-change connector can be installed at the tail end of the hydraulic oil pipe of the test bed in advance, and the female end of the quick-change connector is installed on the oil port of the tested product in advance). When the hydraulic workpiece is connected to the oil circuit in a short time, the quick-change connector is required to be connected with the oil pipe, and a transition connector is also required between the quick-change connector and the hydraulic workpiece to adapt to connecting oil ports of different types on different hydraulic workpieces.
As mentioned above, before a tested product is loaded on a test bench, a male end of a quick-change connector needs to be mounted on an oil port of the tested product in advance, a transition connector needs to be mounted on the male end of the quick-change connector in advance and locked, the male end of the quick-change connector and the transition connector are integrated into a whole (hereinafter, the whole is simply referred to as a quick-change connector assembly), and the whole is generally not disassembled (unless the model of the tested product changes, the transition connector needs to be replaced), and the whole is mounted on the oil port of the tested product before a test. In order to ensure reliable sealing between the transition joint and the oil port, the transition joint is tightly locked by applying a proper tightening torque when being installed on the oil port of a tested product.
In order to apply a tightening torque when installing the quick-change connector assembly and a loosening torque when removing the quick-change connector assembly, the test product needs to be clamped and fixed in advance before assembly and disassembly, and in order to control the magnitude of the tightening torque, a manually or automatically adjusted torque limiting device needs to be used. Thus, in addition to the installation and removal work on the test stand, each product to be tested also needs to perform such operations before and after the test: clamping and fixing a tested product → installing a quick-change connector assembly on each hydraulic oil port → applying a tightening torque to all the quick-change connector assemblies → loosening and clamping the tested product → enabling the tested product to flow into a test bed → enabling the tested product to flow out of the test bed → clamping and fixing the tested product → disassembling all the quick-change connector assemblies. Therefore, the existing scheme only improves the utilization rate of the test bed, and the total workload required by a single product test is not reduced, but the labor intensity of an operator is increased.
Therefore, it is an urgent problem to provide a lock-free hydraulic connector suitable for short-time connection.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a locking-free hydraulic joint suitable for connect for a short time can avoid applying big moment locking, has reduced experimental preparation time, has alleviateed operator intensity of labour.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a locking-free hydraulic joint suitable for short-time connection comprises a joint main body, an oil port self-pressing sleeve, a radial sealing piece and an oil port sealing piece;
the joint main body comprises a first cylinder, a second cylinder and a third cylinder which are integrally connected in sequence; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a sealing ring groove is formed in the peripheral surface of the second cylinder, a pressure containing cavity is formed between the second cylinder and the third cylinder, and the pressure containing cavity is communicated with the intermediate oil duct; the outer peripheral surface of the third cylinder is provided with an external thread which is matched and connected with an oil port of a hydraulic workpiece;
the oil port self-pressing sleeve is sleeved on the second cylinder and the third cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder and the outer wall of the third cylinder respectively;
the radial sealing element is arranged in the sealing ring groove;
a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve and the hydraulic workpiece; the oil port sealing piece is arranged in the sealing ring groove.
Through taking above scheme, the beneficial effects of the utility model are that:
the utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Furthermore, the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 is larger than D1.
A locking-free hydraulic joint suitable for short-time connection comprises a joint main body, an oil port self-pressing sleeve, a first radial sealing element, a second radial sealing element, an oil port sealing element and a gasket;
the joint main body comprises a first cylinder, a second cylinder and a third cylinder which are integrally connected in sequence; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a pressure containing cavity is formed between the second cylinder and the third cylinder and is communicated with the intermediate oil duct; the peripheral surface of the second cylinder is provided with a first sealing ring groove, the peripheral surface of the third cylinder is provided with a second sealing ring groove, and the first sealing ring groove and the second sealing ring groove are respectively arranged on two sides of the pressure containing cavity; the outer peripheral surface of the third cylinder is provided with an external thread which is matched and connected with an oil port of a hydraulic workpiece;
the oil port self-pressing sleeve is sleeved on the second cylinder and the third cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder and the outer wall of the third cylinder respectively;
the first radial seal is disposed within the first seal ring groove; the second radial seal is disposed within the second seal ring groove;
the oil port sealing piece is sleeved at the top of the third column body;
the gasket is arranged between the oil port self-pressing sleeve and the oil port sealing piece.
Through taking above scheme, the beneficial effects of the utility model are that:
the utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Further, the outer diameter of the first sealing ring groove is D2, the outer diameter of the hydraulic workpiece oil port is D1, and D2 is larger than D1.
A locking-free hydraulic joint suitable for short-time connection comprises a joint main body, an oil port self-pressing sleeve, a radial sealing piece, an oil port sealing piece and a plurality of bolts;
the joint main body comprises a first cylinder and a second cylinder which are integrally connected; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a sealing ring groove is formed in the peripheral surface of the second cylinder, a pressure containing cavity is formed between the second cylinder and the oil port self-pressing sleeve, and the pressure containing cavity is communicated with the intermediate oil duct;
the oil port self-pressing sleeve is sleeved on the second cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder;
the radial sealing element is arranged in the sealing ring groove;
a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve and the hydraulic workpiece; the oil port sealing element is arranged in the sealing ring groove;
the bolt penetrates through the first cylinder and the oil port self-pressing sleeve in sequence to be connected with a hydraulic workpiece.
Through taking above scheme, the beneficial effects of the utility model are that:
the utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Furthermore, the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 is larger than D1.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lock-free hydraulic connector suitable for short-time connection according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an oil port of a hydraulic workpiece according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a lock-free hydraulic connector suitable for short-time connection according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of an oil port of a hydraulic workpiece according to embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of a lock-free hydraulic connector suitable for short-time connection according to embodiment 3 of the present invention;
fig. 6 is a schematic diagram of a hydraulic workpiece oil port structure in embodiment 3 provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
the locking-free hydraulic joint suitable for short-time connection of the embodiment is suitable for a threaded oil port for plane sealing of a hydraulic workpiece (as shown in fig. 2).
As shown in fig. 1, the embodiment of the utility model discloses a locking-free hydraulic connector suitable for short-time connection, which comprises a connector main body 1, an oil port self-pressing sleeve 2, a radial sealing element 3 and an oil port sealing element 4;
the joint main body 1 comprises a first cylinder 11, a second cylinder 12 and a third cylinder 13 which are integrally connected in sequence; the joint main body 1 has an intermediate oil passage 14 axially penetrating therethrough; the extending end part of the first column 11 is provided with an oil port 111 which is in matched connection with the quick-change connector, and the oil port 111 is communicated with the middle oil duct 14; a sealing ring groove is formed in the peripheral surface of the second cylinder 12, a pressure containing cavity 121 is formed between the second cylinder 12 and the third cylinder 13, and the pressure containing cavity 121 is communicated with the intermediate oil duct 14; the outer peripheral surface of the third cylinder 13 is provided with an external thread 131 which is matched and connected with the hydraulic workpiece oil port;
the oil port self-pressing sleeve 2 is sleeved on the second cylinder 12 and the third cylinder 13, and the inner wall of the oil port self-pressing sleeve 2 is in clearance fit with the outer wall of the second cylinder 12 and the outer wall of the third cylinder 13 respectively;
the radial sealing element 3 is arranged in the sealing ring groove;
a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve 2 and the hydraulic workpiece; the oil port sealing piece 4 is arranged in the sealing ring groove.
The utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Specifically, the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 is larger than D1.
The utility model discloses a theory of operation: before the hydraulic workpiece is connected, the oil port 111 is connected with the male end of the quick-change connector and locked to form a component, after the hydraulic workpiece is clamped on the test bed, the external thread 131 is screwed into the oil port of the hydraulic workpiece, the hydraulic workpiece is manually screwed, a special tool is not needed to perform locking operation according to locking torque, the hydraulic workpiece is manually disassembled, and the assembling and disassembling time on the test bed is saved.
The oil port self-pressing sleeve 2 is matched with the joint main body 1 through the radial sealing piece 3 to prevent oil from leaking from the pressure containing cavity 121, and the contact surface of the oil port sealing piece 4 and the hydraulic workpiece is pressed to be sealed at the oil port of the hydraulic workpiece through the hydraulic pressure of the pressure containing cavity 121; the outer diameter D2 of the seal ring groove is larger than the outer diameter D1 of the seal ring groove, so that hydraulic pressure which is larger than the cavity where the oil port seal 4 is compressed can be formed at the pressure cavity 121, and the hydraulic pressure is automatically pressed on a hydraulic workpiece.
Hydraulic oil enters the internal middle oil duct 14 through the oil port 111 or the third cylinder 13 and fills the containing cavity, the hydraulic oil transmits pressure to all contact surfaces, and as the area of the contact surface at the pressure containing cavity 121 is larger than that of the containing cavity where the oil port sealing element 4 is compressed, according to the pascal principle, the hydraulic pressure generated at the pressure containing cavity 121 is larger than that generated at the sealing element 4, so as to form pressure difference, generate hydraulic pressing force in the axial direction from the pressure containing cavity 121 to the direction of the external thread 131 of the third cylinder 13, and press the joint and a hydraulic workpiece by using the pressing force, so that leakage of the hydraulic oil is prevented.
Example 2:
the locking-free hydraulic joint suitable for short-time connection of the embodiment is suitable for a threaded oil port for sealing the conical surface of a hydraulic workpiece (as shown in fig. 4).
As shown in fig. 3, the embodiment of the utility model discloses a locking-free hydraulic connector suitable for short-time connection, including connector main body 1, hydraulic fluid port self-compressing sleeve 2, first radial seal member 3, second radial seal member 4, hydraulic fluid port seal member 5 and gasket 6;
the joint main body 1 comprises a first cylinder 11, a second cylinder 12 and a third cylinder 13 which are integrally connected in sequence; the joint main body 1 has an intermediate oil passage 14 axially penetrating therethrough; the extending end part of the first column 11 is provided with an oil port 111 which is in matched connection with the quick-change connector, and the oil port 111 is communicated with the middle oil duct 14; a pressure containing cavity 121 is formed between the second cylinder 12 and the third cylinder 13, and the pressure containing cavity 121 is communicated with the intermediate oil duct 14; the peripheral surface of the second cylinder 12 is provided with a first sealing ring groove, the peripheral surface of the third cylinder 13 is provided with a second sealing ring groove, and the first sealing ring groove and the second sealing ring groove are respectively arranged at two sides of the pressure containing cavity 121; the outer peripheral surface of the third cylinder 13 is provided with an external thread 131 which is matched and connected with the hydraulic workpiece oil port;
the oil port self-pressing sleeve 2 is sleeved on the second cylinder 12 and the third cylinder 13, and the inner wall of the oil port self-pressing sleeve 2 is in clearance fit with the outer wall of the second cylinder 12 and the outer wall of the third cylinder 13 respectively;
the first radial seal member 3 is disposed in the first seal ring groove; the second radial seal 4 is arranged in the second seal ring groove;
the oil port sealing piece 5 is sleeved at the top of the third column body 13;
the gasket 6 is disposed between the port self-compressing sleeve 2 and the port sealing member 5.
The utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Specifically, the outer diameter of the first sealing ring groove is D2, the outer diameter of the hydraulic workpiece oil port is D1, and D2 is larger than D1.
The utility model discloses a theory of operation: before the hydraulic workpiece is connected, the oil port 111 is connected with the male end of the quick-change connector and locked to form a component, after the hydraulic workpiece is clamped on the test bed, the external thread 131 is screwed into the oil port of the hydraulic workpiece, the hydraulic workpiece is manually screwed, a special tool is not needed to perform locking operation according to locking torque, the hydraulic workpiece is manually disassembled, and the assembling and disassembling time on the test bed is saved.
The oil port self-pressing sleeve 2 is matched with the joint main body 1 through the first radial sealing element 3 and the second radial sealing element 4 to prevent oil from leaking from the pressure containing cavity, particularly, the second radial sealing element 4 can prevent the oil from leaking from the end face of the oil port self-pressing sleeve 2 through the oil port self-pressing sleeve, and the contact surface of the oil port sealing element 5 and the conical hole of the oil port of the hydraulic workpiece is pressed to achieve sealing at the oil port of the hydraulic workpiece through the hydraulic pressure of the pressure containing cavity 121; the outer diameter D2 of the first sealing ring groove is larger than the outer diameter D1 of the hydraulic workpiece oil port so as to form self-pressing force of joint connection.
Example 3:
the locking-free hydraulic connector suitable for short-time connection of the embodiment is suitable for a flange oil port of a hydraulic workpiece for plane sealing (as shown in fig. 6).
As shown in fig. 5, the embodiment of the present invention discloses a locking-free hydraulic connector suitable for short-time connection, which comprises a connector main body 1, an oil port self-pressing sleeve 2, a radial sealing member 3, an oil port sealing member 4 and a plurality of bolts 5;
the joint body 1 comprises a first cylinder 11 and a second cylinder 12 which are integrally connected; the joint main body 1 has an intermediate oil passage 13 axially penetrating therethrough; the extending end part of the first column 11 is provided with an oil port 111 which is connected with the quick-change connector in a matching manner, and the oil port 111 is communicated with the middle oil duct 13; a sealing ring groove is formed in the peripheral surface of the second cylinder 12, a pressure cavity 121 is formed between the second cylinder 12 and the oil port self-pressing sleeve 2, and the pressure cavity 121 is communicated with the intermediate oil duct 13;
the oil port self-pressing sleeve 2 is sleeved on the second column body 12, and the inner wall of the oil port self-pressing sleeve 2 is in clearance fit with the outer wall of the second column body 12;
the radial sealing element 3 is arranged in the sealing ring groove;
a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve 2 and the hydraulic workpiece; the oil port sealing element 4 is arranged in the sealing ring groove;
the bolt 5 penetrates through the first cylinder 11 and the oil port self-pressing sleeve 2 in sequence to be connected with the hydraulic workpiece.
The utility model discloses use with the quick change coupler cooperation, be the transition joint between connection hydraulic pressure work piece and the quick change coupler, realize being exempted from to lock the dismouting fast by examination product hydraulic pressure connector, practice thrift experimental preparation man-hour, simplify experimental preparation station, alleviate operator intensity of labour.
Specifically, the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 is larger than D1.
The utility model discloses a theory of operation: before the hydraulic workpiece is connected, the oil port 111 is connected with the male end of the quick-change connector and locked to form an assembly, after the hydraulic workpiece is clamped on the test bed, the connector main body 1 is connected with the hydraulic workpiece through the bolt 5, a special tool is not needed to perform locking operation according to locking torque, only manual operation is needed during disassembly, and the assembly and disassembly time on the test bed is saved.
The oil port self-pressing sleeve 2 is matched with the joint main body 1 through the radial sealing piece 3 to prevent oil from leaking from the pressure containing cavity 121, and the oil port sealing piece 4 is pressed against the contact surface of the oil port of the hydraulic workpiece to achieve sealing through the hydraulic pressure of the pressure containing cavity 121 at the oil port of the hydraulic workpiece; the outer diameter D2 of the seal ring groove is greater than the outer diameter D1 of the seal ring groove to create a self-tightening force for the joint connection.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A locking-free hydraulic connector suitable for short-time connection is characterized by comprising a connector main body, an oil port self-pressing sleeve, a radial sealing element and an oil port sealing element;
the joint main body comprises a first cylinder, a second cylinder and a third cylinder which are integrally connected in sequence; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a sealing ring groove is formed in the peripheral surface of the second cylinder, a pressure containing cavity is formed between the second cylinder and the third cylinder, and the pressure containing cavity is communicated with the intermediate oil duct; the outer peripheral surface of the third cylinder is provided with an external thread which is matched and connected with an oil port of a hydraulic workpiece;
the oil port self-pressing sleeve is sleeved on the second cylinder and the third cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder and the outer wall of the third cylinder respectively;
the radial sealing element is arranged in the sealing ring groove;
a sealing ring groove is formed in the contact end of the oil port self-pressing sleeve and the hydraulic workpiece; the oil port sealing piece is arranged in the sealing ring groove.
2. The lock-free hydraulic connector suitable for short-time connection of claim 1, wherein the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 > D1.
3. A locking-free hydraulic connector suitable for short-time connection is characterized by comprising a connector main body, an oil port self-pressing sleeve, a first radial sealing element, a second radial sealing element, an oil port sealing element and a gasket;
the joint main body comprises a first cylinder, a second cylinder and a third cylinder which are integrally connected in sequence; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a pressure containing cavity is formed between the second cylinder and the third cylinder and is communicated with the intermediate oil duct; the peripheral surface of the second cylinder is provided with a first sealing ring groove, the peripheral surface of the third cylinder is provided with a second sealing ring groove, and the first sealing ring groove and the second sealing ring groove are respectively arranged on two sides of the pressure containing cavity; the outer peripheral surface of the third cylinder is provided with an external thread which is matched and connected with an oil port of a hydraulic workpiece;
the oil port self-pressing sleeve is sleeved on the second cylinder and the third cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder and the outer wall of the third cylinder respectively;
the first radial seal is disposed within the first seal ring groove; the second radial seal is disposed within the second seal ring groove;
the oil port sealing piece is sleeved at the top of the third column body;
the gasket is arranged between the oil port self-pressing sleeve and the oil port sealing piece.
4. The lock-free hydraulic joint suitable for short-time connection according to claim 3, wherein the outer diameter of the first sealing ring groove is D2, the outer diameter of the hydraulic workpiece oil port is D1, and D2 > D1.
5. A locking-free hydraulic connector suitable for short-time connection is characterized by comprising a connector main body, an oil port self-pressing sleeve, a radial sealing element, an oil port sealing element and a plurality of bolts;
the joint main body comprises a first cylinder and a second cylinder which are integrally connected; the joint main body is provided with an intermediate oil passage axially penetrating through the joint main body; an oil port which is connected with the quick-change connector in a matching manner is formed in the extending end part of the first column body, and the oil port is communicated with the middle oil duct; a sealing ring groove is formed in the peripheral surface of the second cylinder, a pressure containing cavity is formed between the second cylinder and the oil port self-pressing sleeve, and the pressure containing cavity is communicated with the intermediate oil duct;
the oil port self-pressing sleeve is sleeved on the second cylinder, and the inner wall of the oil port self-pressing sleeve is in clearance fit with the outer wall of the second cylinder;
the radial sealing element is arranged in the sealing ring groove;
the contact end of the oil port self-pressing sleeve and the hydraulic workpiece is provided with a sealing ring groove; the oil port sealing element is arranged in the sealing ring groove;
the bolt penetrates through the first cylinder and the oil port self-pressing sleeve in sequence to be connected with the hydraulic workpiece.
6. The lock-free hydraulic joint suitable for short-time connection of claim 5, wherein the outer diameter of the sealing ring groove is D2, the outer diameter of the sealing ring groove is D1, and D2 > D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143761.2U CN214404997U (en) | 2020-12-23 | 2020-12-23 | Locking-free hydraulic connector suitable for short-time connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143761.2U CN214404997U (en) | 2020-12-23 | 2020-12-23 | Locking-free hydraulic connector suitable for short-time connection |
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| Publication Number | Publication Date |
|---|---|
| CN214404997U true CN214404997U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023143761.2U Active CN214404997U (en) | 2020-12-23 | 2020-12-23 | Locking-free hydraulic connector suitable for short-time connection |
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| Country | Link |
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| CN (1) | CN214404997U (en) |
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2020
- 2020-12-23 CN CN202023143761.2U patent/CN214404997U/en active Active
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