Universal combination joint for hydraulic pipeline

Abstract

The utility model discloses a universal combination joint for a hydraulic pipeline, which relates to the technical field of hydraulic systems and comprises a universal transmission component, the universal transmission component comprises a fixed sleeve and a movable sleeve, and a digital display time controller is fixedly embedded in the center of the top of the fixed sleeve. A buzzer is fixedly installed on the top of the digital display time controller, and an abutting anti-disengaging piece is installed on the inner wall of the fixing sleeve and comprises a fixing ring and a positioning block. The beneficial effects of the utility model are that through the arrangement of the expansion sealing member, the gas transmission detection member, the digital display time controller, the buzzer and the pressing anti-drop member, the gas can be continuously introduced into the gas transmission groove from the gas transmission pipe in cooperation with the opened solenoid valve in the working state of the bidirectional gas pump, and when the inner ring of the rubber ring is excessively damaged, the gas can be prevented from entering the gas transmission groove. As the working time of the two-way air pump goes on, the change of the air pressure value detected by the air pressure sensor is small, which indicates that the phenomenon of air leakage exists.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic system field especially a universal combination joint for hydraulic pipeline. BACKGROUND

[0002] In the hydraulic system pipeline, the universal combination joint is a commonly used component, mainly to realize the flexible movement of equipment, ensure the high pressure stable operation of the system, prevent leakage and pressure loss, and adapt to various working environments and facilitate maintenance. These features make the universal combination joint an indispensable important component in the hydraulic system.

[0003] The basic universal combination joint generally adopts the form of a sealing ring to complete the sealing protection of the fixed part and the movable part, but as the use time increases and the number of joint bending angle changes increases, the simple sealing part is easy to be damaged and lose the sealing protection performance. The staff often regularly carries out leakage detection, but cannot conveniently carry out sealing test, and the additional configuration of detection equipment needs to be carried.

[0004] In view of the above and / or problems existing in the prior art, the utility model is proposed. SUMMARY

[0005] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above and / or problems existing in the prior art, the utility model is proposed.

[0007] Therefore, the technical problem to be solved by the utility model is that the simple sealing part in the basic universal combination joint is easy to be damaged and lose the sealing protection performance. The staff often regularly carries out leakage detection, but cannot conveniently carry out sealing test, and the additional configuration of detection equipment needs to be carried, which has certain restrictive problem.

[0008] To solve the above technical problems, the utility model provides technical scheme as follows: A universal combination joint for hydraulic pipeline, comprising, universal transmission assembly, the universal transmission assembly includes fixed sleeve and movable sleeve, the centre of fixed sleeve top is fixed with digital time controller inlaying, the top of digital time controller is fixedly installed with bee calling organ, the inner wall of fixed sleeve is installed with resist pressing anti -drop part, the resist pressing anti -drop part includes fixed ring and positioning block, the surface of positioning block is penetrated and is connected with resist pressing bolt, the surface of resist pressing bolt is equipped with resist pressing ring, the outside of fixed sleeve inner chamber is provided with expansion sealing piece, the expansion sealing piece includes rubber ring, the inside and outside of expansion sealing piece is equipped with inner ring groove and outer ring groove respectively, the inner ring groove and outer ring groove are equipped with gas conveying groove, the inner wall of gas conveying groove is equipped with expansion groove, the left and right sides of fixed sleeve top are installed with gas conveying detection piece, the gas conveying detection piece includes two -way air pump, the bottom of two -way air pump is connected with gas conveying pipe, the surface of gas conveying pipe is equipped with gas pressure sensor and electromagnetic valve respectively.

[0009] As a preferred scheme of the universal combination joint for hydraulic pipeline, the movable sleeve is located inside the fixed sleeve and is movably connected with the fixed sleeve.

[0010] As a preferred scheme of the universal combination joint for hydraulic pipeline, the outer ring of the movable sleeve is in contact with the inner ring of the rubber ring, and the inner wall of the movable sleeve is provided with screw threads.

[0011] As a preferred scheme of the universal combination joint for hydraulic pipeline, the number of the positioning blocks is two and they are circumferentially distributed inside the fixed sleeve, and the connection between the positioning blocks and the fixed sleeve and the connection between the fixed ring and the fixed sleeve are fixedly connected.

[0012] As a preferred scheme of the universal combination joint for hydraulic pipeline, one side of the rubber ring is in contact with the surface of the fixed ring, and the other side of the rubber ring is in contact with the surface of the resist pressing ring.

[0013] As a preferred scheme of the universal combination joint for hydraulic pipeline, the outer ring of the rubber ring is in contact with the inner wall of the fixed sleeve, and the outer ring groove, the gas conveying groove and the inner ring groove are in communication.

[0014] As a preferred scheme of the universal combination joint for hydraulic pipeline, the number of the gas conveying grooves and the expansion grooves is several and they are circumferentially distributed inside the rubber ring.

[0015] As a preferred scheme of the universal combination joint for hydraulic pipeline, the top of the fixed sleeve is fixedly connected with a protruding block, and the surface of the bidirectional air pump is fixedly installed on the protruding block through screws.

[0016] As a preferred scheme of the universal combination joint for hydraulic pipeline, the bottom end of the gas conveying pipe penetrates the outer ring groove and extends to the inner cavity of the gas conveying groove, and the gas pressure sensor and the electromagnetic valve are located in the gas conveying groove.

[0017] As a preferred scheme of the universal combination joint for hydraulic pipeline, the inner ring groove is located at the center of the inner ring of the rubber ring, and the end of the abutting bolt away from the abutting ring is fixedly connected with a torsion block.

[0018] The universal combination joint for hydraulic pipeline has the advantages of convenient detection, can continuously convey gas into the gas conveying groove through the gas conveying pipe under the working state of the bidirectional air pump in cooperation with the opened electromagnetic valve, and can discharge the gas between the rubber ring and the movable sleeve when the inner ring of the rubber ring is excessively damaged, and the gas pressure sensor detects that the gas pressure value changes slightly with the lapse of the working time of the bidirectional air pump, indicating that there is a gas leakage phenomenon, and the buzzer can be controlled to work to complete the buzzer warning. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0020] Figure 1 It is a three-dimensional schematic view of the structure of the present application;

[0021] Figure 2 It is a sectional view of the structure of the present application;

[0022] Figure 3 It is a sectional view of the structure of the present application when the local structure is separated;

[0023] Figure 4 It is a three-dimensional schematic view of the present application; Figure 3

[0024] Figure 5 It is a three-dimensional schematic view of the present application; Figure 3

[0025] Figure 6 It is a three-dimensional schematic view of the gas conveying detection member of the present application. ​​DETAILED DESCRIPTION

[0026] In order to make the above objectives, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0028] Secondly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the cross-sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in the actual manufacture.

[0029] Thirdly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics contained in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figures 1-6This embodiment provides a universal joint for hydraulic pipelines, including a universal transmission assembly 100. The universal transmission assembly 100 includes a fixed sleeve 101 and a movable sleeve 102. A digital display time controller 101c is fixedly embedded at the center of the top of the fixed sleeve 101. A buzzer 101c-1 is fixedly installed on the top of the digital display time controller 101c. A pressure-resistant anti-detachment component 101d is installed on the inner wall of the fixed sleeve 101. The pressure-resistant anti-detachment component 101d includes a fixed ring 101d-1 and a positioning block 101d-2. A pressure bolt 101d-2a is threaded through the surface of the positioning block 101d-2. A pressure ring 101d-2b is sleeved on the surface of the pressure bolt 101d-2a. An expansion joint is provided on the outer side of the inner cavity of the fixed sleeve 101. The sealing element 101a includes a rubber ring 101a-1. An inner ring groove 101a-1d and an outer ring groove 101a-1a are respectively opened on the inner and outer sides of the sealing element 101a. An air delivery groove 101a-1b is opened between the inner ring groove 101a-1d and the outer ring groove 101a-1a. An expansion groove 101a-1c is opened on the inner wall of the air delivery groove 101a-1b. Air delivery detection elements 101b are installed on the left and right sides of the top of the fixed sleeve 101. The air delivery detection element 101b includes a bidirectional air pump 101b-1. The bottom end of the bidirectional air pump 101b-1 is connected to an air delivery pipe 101b-2. A pressure sensor 101b-2a and a solenoid valve 101b-2b are respectively sleeved and installed on the surface of the air delivery pipe 101b-2.

[0032] Furthermore, the movable sleeve 102 is located inside the fixed sleeve 101 and is movably connected to the fixed sleeve 101.

[0033] Furthermore, the outer ring of the movable sleeve 102 contacts the inner ring of the rubber ring 101a-1, and the inner wall of the movable sleeve 102 is provided with threads 102a.

[0034] Furthermore, there are two positioning blocks 101d-2, which are circumferentially distributed inside the fixed sleeve 101. The connection between the positioning blocks 101d-2 and the fixed sleeve 101, and the connection between the fixed ring 101d-1 and the fixed sleeve 101 are all fixedly connected.

[0035] Furthermore, one side of the rubber ring 101a-1 contacts the surface of the fixing ring 101d-1, and the other side of the rubber ring 101a-1 contacts the surface of the pressure ring 101d-2b.

[0036] Furthermore, the outer ring of the rubber ring 101a-1 contacts the inner wall of the fixed sleeve 101, and the outer ring groove 101a-1a, the air delivery groove 101a-1b, and the inner ring groove 101a-1d are in a connected state.

[0037] Further, the number of the air conveying grooves 101a-1b and the expansion grooves 101a-1c is several and they are circumferentially distributed inside the rubber ring 101a-1.

[0038] Further, the top of the fixed sleeve 101 is fixedly connected with a protruding block, and the surface of the bidirectional air pump 101b-1 is fixedly installed on the protruding block through screws.

[0039] Further, the bottom end of the air conveying pipe 101b-2 penetrates the outer ring groove 101a-1a and extends to the inner cavity of the air conveying groove 101a-1b, and the air pressure sensor 101b-2a and the electromagnetic valve 101b-2b are both located in the air conveying groove 101a-1b.

[0040] Further, the inner ring groove 101a-1d is located at the center of the inner circle of the rubber ring 101a-1, and the end of the abutting bolt 101d-2a away from the abutting ring 101d-2b is fixedly connected with a torsion block.

[0041] It should be noted that by setting the rubber ring 101a-1, it can be installed between the abutting ring 101d-2b and the fixed ring 101d-1, and then the sealing protection is completed by the contact between the inner circle and the movable sleeve 102. By setting the expansion groove 101a-1c, the excess gas can be temporarily stored in the expansion groove 101a-1c when the sealing performance of the rubber ring 101a-1 is good, and the rubber ring 101a-1 can be elastically expanded to have better sealing between the movable sleeve 102. By setting the buzzer 101c-1, a buzzing sound can be generated in the working state to remind the staff to come over for maintenance in time. By setting the fixed ring 101d-1 and the abutting ring 101d-2b, the positioning and clamping of the rubber ring 101a-1 can be completed in the installed state. By setting the positioning block 101d-2 and the abutting bolt 101d-2a, the function of screw transmission can be achieved. When the abutting bolt 101d-2a is driven to rotate, the abutting bolt 101d-2a will also displace, thereby adjusting the position of the abutting ring 101d-2b. By setting the screw thread 102a, it can be well screwed with the external pipeline.

[0042] In actual application, one end of the abutting bolt 101d-2a located inside the abutting ring 101d-2b is designed to be smooth, and the smooth surface is movably connected with the abutting ring 101d-2b through a bearing, so as to make the abutting ring 101d-2b displace synchronously with the abutting bolt 101d-2a.

[0043] In actual application, the bidirectional air pump 101b-1, the air pressure sensor 101b-2a, the electromagnetic valve 101b-2b and the buzzer 101c-1 are electrically connected with the digital time controller 101c, and the digital time controller 101c is built-in with a storage battery.

[0044] In use, each component is in the initial state, first press the rubber ring 101a-1 elastic deformation, and placed in the fixed ring 101d-1 and 101d-2b, then the rubber ring 101a-1 stretch, its outer wall and fixed sleeve 101 inner contact, inner wall and the surface of the movable sleeve 102 contact, then turn the pressure bolt 101d-2a, under the threaded drive, can make the pressure bolt 101d-2a rotation and displacement at the same time, the pressure ring 101d-2b gradually move and press the rubber ring 101a-1, complete the tight pressure of the rubber ring 101a-1, ensure the stability of the rubber ring 101a-1 installation, the staff according to the actual demand, can preset digital time controller 101c on the intermittent time and working time of the two-way air pump 101b-1, and set the gas pressure sensor 101b-2a detection gas pressure value, after the intermittent time reaches the digital time controller 101c automatic control two-way air pump 101b-1 work and electromagnetic valve 101b-2b open, so that the gas transmission through the gas pipe 101b-2 into the gas groove 101a-1b, when the rubber ring 101a-1 good sealing performance, the gas can not be discharged and temporarily stored in the expansion groove 101a-1c, the rubber ring 101a-1 elastic expansion, until the working time, digital time controller 101c automatic control two-way air pump 101b-1 stop working and electromagnetic valve 101b-2b closed, at this time the gas pressure sensor 101b-2a detection gas pressure value will increase, and with the increase of detection times, when the gas pressure sensor 101b-2a detection gas pressure value is higher than the preset value, the gas pressure sensor 101b-2a sends a signal to the digital time controller 101c, the digital time controller 101c automatic control buzzer 101c-1 work warning, the staff need to come to the initiative to carry out pressure relief operation, to avoid the rubber ring 101a-1 over expansion and damage, it is obvious that the gas pressure sensor 101b-2a has not detected the pressure rise when the rubber ring 101a-1 has been damaged, the gas pressure sensor 101b-2a sends a signal to make the buzzer 101c-1 work warning, similarly, the staff in the initiative detection, the rubber ring 101a-1 is in damaged state, the two-way air pump 101b-1 work when the excess gas will be discharged through the rubber ring 101a-1 and movable sleeve 102 between the gas pressure sensor 101b-2a does not detect the pressure rise, can control the buzzer 101c-1 work warning.

[0045] In summary, by setting the expansion sealing piece 101a, the gas delivery detection piece 101b, the digital display time controller 101c, the buzzer 101c-1 and the pressure resistance anti-dropping piece 101d, in the working state of the bidirectional air pump 101b-1, the electromagnetic valve 101b-2b is opened, the gas is continuously delivered into the gas delivery groove 101a-1b through the gas delivery pipe 101b-2, when the inner ring of the rubber ring 101a-1 is excessively damaged, the gas will be discharged between the rubber ring 101a-1 and the movable sleeve 102, and as the working time of the bidirectional air pump 101b-1 elapses, the gas pressure sensor 101b-2a detects that the gas pressure value changes slightly, indicating that there is a gas leakage phenomenon, and the buzzer 101c-1 can be controlled to work to complete the buzzer warning.

[0046] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the subject matter. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to the scope of the appended claims.

[0047] Furthermore, in an effort to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the best mode of practicing the present application, or those unrelated to enabling the claimed application).

[0048] It should be understood that numerous specific implementations can be made within the scope of the present application without departing from the spirit of the application. For example, although specific configurations of the various components have been described, other configurations of the components can also be used. Moreover, certain terminology has been used to describe embodiments of the application. It is to be understood that such terminology is for convenience only and should be given a broad interpretation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A universal combination joint for hydraulic lines, characterized in that: Comprising, The universal transmission assembly (100) comprises a fixed sleeve (101) and a movable sleeve (102), a digital time controller (101c) is fixedly embedded at the center of the top of the fixed sleeve (101), a buzzer (101c-1) is fixedly installed at the top of the digital time controller (101c), a pressing anti-falling piece (101d) is installed on the inner wall of the fixed sleeve (101), the pressing anti-falling piece (101d) comprises a fixed ring (101d-1) and a positioning block (101d-2), a pressing bolt (101d-2a) is threadedly connected through the surface of the positioning block (101d-2), a pressing ring (101d-2b) is installed on the surface of the pressing bolt (101d-2a), a supporting sealing piece (101a) is arranged outside the inner cavity of the fixed sleeve (101), the supporting sealing piece (101a) comprises a rubber ring (101a-1), an inner ring groove (101a-1d) and an outer ring groove (101a-1a) are respectively formed on the inner side and the outer side of the supporting sealing piece (101a), a gas conveying groove (101a-1b) is formed between the inner ring groove (101a-1d) and the outer ring groove (101a-1a), a supporting groove (101a-1c) is formed on the inner wall of the gas conveying groove (101a-1b), a gas conveying detection piece (101b) is installed on the left side and the right side of the top of the fixed sleeve (101), the gas conveying detection piece (101b) comprises a bidirectional air pump (101b-1), the bottom end of the bidirectional air pump (101b-1) is communicated with a gas conveying pipe (101b-2), a gas pressure sensor (101b-2a) and an electromagnetic valve (101b-2b) are respectively installed on the surface of the gas conveying pipe (101b-2).

2. The universal combination joint for hydraulic lines according to claim 1, characterized in that: The movable sleeve (102) is located inside the fixed sleeve (101) and is movably connected with the fixed sleeve (101).

3. The universal combination joint for hydraulic lines according to claim 1 or 2, characterized in that: The outer ring of the movable sleeve (102) is in contact with the inner ring of the rubber ring (101a-1), and the inner wall of the movable sleeve (102) is provided with a screw thread (102a).

4. The universal combination joint for hydraulic lines according to claim 3, characterized in that: The number of the positioning blocks (101d-2) is two and they are circumferentially distributed in the fixed sleeve (101), and the connection between the positioning blocks (101d-2) and the fixed sleeve (101) and the connection between the fixed ring (101d-1) and the fixed sleeve (101) are all fixedly connected.

5. The universal combination joint for hydraulic lines according to claim 4, characterized in that: One side of the rubber ring (101a-1) is in contact with the surface of the fixed ring (101d-1), and the other side of the rubber ring (101a-1) is in contact with the surface of the pressing ring (101d-2b).

6. The universal combination joint for hydraulic lines according to claim 5, characterized in that: The outer ring of the rubber ring (101a-1) is in contact with the inner wall of the fixed sleeve (101), and the outer ring groove (101a-1a), the gas conveying groove (101a-1b) and the inner ring groove (101a-1d) are in communication.

7. The universal coupling joint for hydraulic lines according to any one of claims 4 to 6, characterized in that: The number of the gas conveying grooves (101a-1b) and the supporting grooves (101a-1c) is several and they are circumferentially distributed inside the rubber ring (101a-1).

8. The universal combination joint for hydraulic lines according to claim 7, characterized in that: The top of the fixed sleeve (101) is fixedly connected with a protrusion, and the surface of the bidirectional air pump (101b-1) is fixedly installed on the protrusion through screws.

9. The universal combination joint for hydraulic lines according to claim 8, characterized in that: The bottom end of the gas conveying pipe (101b-2) penetrates the outer ring groove (101a-1a) and extends to the inner cavity of the gas conveying groove (101a-1b), and the gas pressure sensor (101b-2a) and the electromagnetic valve (101b-2b) are both located in the gas conveying groove (101a-1b).

10. The universal combination joint for hydraulic lines according to claim 9, characterized in that: The inner ring groove (101a-1d) is located at the center of the inner ring of the rubber ring (101a-1), and the end, away from the pressing ring (101d-2b), of the pressing bolt (101d-2a) is fixedly connected with a torsion block.

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