CN218670042U - Transition joint structure for oil cylinder - Google Patents
Transition joint structure for oil cylinder Download PDFInfo
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- CN218670042U CN218670042U CN202223243779.9U CN202223243779U CN218670042U CN 218670042 U CN218670042 U CN 218670042U CN 202223243779 U CN202223243779 U CN 202223243779U CN 218670042 U CN218670042 U CN 218670042U
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- oil cylinder
- hydraulic lock
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Abstract
The utility model relates to a transition joint structure for an oil cylinder, which is an integrated structure and comprises a first unit and a second unit, wherein a first cylindrical hollow structure is arranged in the first unit, a second cylindrical hollow structure is arranged in the second unit, and the first hollow structure and the second hollow structure are coaxial structures; the inner side surface of the first unit is provided with threads, and the outer side surface of the second unit is of a cylindrical structure and is provided with threads; the first unit is connected with a screw of the hydraulic lock through a thread arranged on the inner side surface, and the second unit is connected with the step surface of the oil cylinder through a thread arranged on the outer side surface. The transitional joint structure is applied to a luffing cylinder of a 14-meter overhead working truck, can solve the problem of connection interference in the installation and connection process of a hydraulic lock and the cylinder, and can realize smooth matching of the hydraulic lock with any size of connection surface and the cylinder.
Description
Technical Field
The utility model relates to a special-purpose vehicle makes technical field, especially relates to a transition joint design for hydro-cylinder.
Background
At present, in the technical field of special vehicle manufacturing, a hydraulic transmission mechanism is generally used, and an oil cylinder is used as a most main execution mechanism, and is used together with a hydraulic lock or a balance valve on occasions with large load bearing and high safety coefficient, so that a cylinder rod is prevented from retracting after pressure oil stops being supplied. However, in the prior art, the hydraulic lock and the oil cylinder are connected in a plate mode, and the connecting surface is compressed by an O-shaped ring to be sealed. The phenomenon that the mesa size and the mesa degree of depth can't be taken into account can appear when the hydro-cylinder step face mills, promptly on the cylinder, in order to guarantee enough big plane, must increase and mill the degree of depth, and the degree of depth increases the back, must cause the step too high, easily interferes with the hydraulic pressure lock, makes the unable O type circle that compresses tightly of sealed terminal surface.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a transition joint design for hydro-cylinder proposes to solve hydraulic pressure lock and is connected the problem of interference in the hydro-cylinder erection joint process.
In order to achieve the above object, the utility model discloses the technical scheme who adopts includes:
a transition joint structure for an oil cylinder is an integrally formed structure and comprises a first unit and a second unit, wherein a first cylindrical hollow structure is arranged in the first unit, a second cylindrical hollow structure is arranged in the second unit, and the first hollow structure and the second hollow structure are coaxial structures; the inner side surface of the first unit is provided with threads, and the outer side surface of the second unit is of a cylindrical structure and is provided with threads; the first unit is connected with a screw of the hydraulic lock through a thread arranged on the inner side surface, and the second unit is connected with the step surface of the oil cylinder through a thread arranged on the outer side surface.
Further, the outer diameter of the first hollow structure is slightly larger than that of the second hollow structure, and the first hollow structure and the second hollow structure are connected through a circular table top.
Further, the length of the first hollow structure is greater than the depth of the screw of the hydraulic lock inserted into the first hollow structure.
Further, the height difference of the bottom of the hole of the first hollow structure from the root of the screw of the hydraulic lock is at least 5mm.
Further, the outer side surface structure of the first unit is a cylindrical structure or a hexagonal prism structure with a symmetrical tangent plane.
Further, the joint of the lower surface of the first unit and the upper surface of the second unit is provided with a chamfer structure.
Furthermore, the upper surface of the first unit is a smooth table surface, and a sealing structure is formed by the upper surface of the first unit and an O-shaped ring of the hydraulic lock.
Further, the lower surface of the second unit and the oil cylinder step surface form a sealing structure through a combined gasket.
The utility model has the advantages that:
adopt the transitional joint structure for the hydro-cylinder, through the inside first hollow structure of columniform that is provided with of first unit, the inside columniform second hollow structure that is provided with of second unit, first hollow structure with second hollow structure is coaxial structure, the inboard surface of first unit is provided with the screw thread, the second unit outside surface is cylindrical structure and is provided with the screw thread, the screw thread that first unit set up through the inboard surface is connected with the screw of hydraulic pressure lock, the screw thread that the second unit set up through the outside surface is connected with hydro-cylinder step face. The transitional joint structure is applied to a luffing cylinder of a 14-meter overhead working truck, can solve the problem of connection interference in the installation and connection process of a hydraulic lock and the cylinder, and can realize smooth matching of the hydraulic lock with any size of connection surface and the cylinder.
Drawings
Fig. 1 is a schematic sectional view of a transition joint structure for an oil cylinder provided by an embodiment of the present invention.
Fig. 2 is a schematic front view of a transition joint structure for an oil cylinder provided by the embodiment of the utility model.
Fig. 3 is a schematic top view of a transitional joint structure for an oil cylinder provided in the embodiment of the present invention.
Fig. 4 is a side view schematic diagram of a transition joint structure for an oil cylinder provided by the embodiment of the utility model.
Fig. 5 is a front view schematic diagram of the assembly of the transition joint structure for the oil cylinder provided by the embodiment of the present invention.
Fig. 6 is a side view schematic diagram of the assembly of the transitional joint structure for the oil cylinder provided by the embodiment of the utility model.
Description of the figure numbering: 1-a transition joint structure for an oil cylinder, 2-a first unit, 3-a second unit, 4-a first hollow structure, 5-a second hollow structure, 6-an oil cylinder step surface, 7-a combined pad, 8-a hydraulic lock O-shaped surface, 9-a hydraulic lock, 10-a hydraulic lock screw, 11-a chamfer structure, 12-a circular table surface and 13-an interference step surface.
Detailed Description
For a clearer understanding of the present invention, reference will be made to the following detailed description of the embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the invention.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, 2, 3, and 4, a transition joint structure for an oil cylinder is schematically illustrated, where the transition joint structure 1 for an oil cylinder is an integrally formed structure, and includes a first unit 2 and a second unit 3, a first cylindrical hollow structure 4 is disposed inside the first unit 2, a height of the first hollow structure 4 is slightly smaller than a height of the first unit 2, a second cylindrical hollow structure 5 is disposed inside the second unit 3, a height of the second hollow structure 4 is slightly larger than a height of the second unit 2, and the first hollow structure 4 and the second hollow structure 5 are coaxial structures; the outer diameter of the first hollow structure 4 is slightly larger than that of the second hollow structure 5, and the first hollow structure 4 is connected with the second hollow structure 5 through a circular table top; the outer side surface structure of the first unit 2 is a cylindrical structure with a symmetrical tangent plane, the cylindrical structure with the symmetrical tangent plane is convenient to process and convenient to install and operate, the inner side surface of the first unit 2 is provided with threads, and the outer side surface of the second unit 3 is a cylindrical structure and is provided with threads; the outer diameter of the first unit 2 is larger than that of the second unit 3, the first unit 2 is connected with a screw 10 of a hydraulic lock through a thread arranged on the inner side surface, so that the first unit 2 is tightly connected with the hydraulic lock 9, and the second unit 3 is connected with an oil cylinder step surface 6 through a thread arranged on the outer side surface.
The joint of the lower surface of the first unit 2 and the upper surface of the second unit 3 is provided with a chamfer structure 11; the upper surface of the first unit 2 is a smooth table surface, a sealing structure is formed by the upper surface of the first unit and the O-shaped ring 8 of the hydraulic lock, and the outer diameter of the first unit is larger than that of the O-shaped ring 8 of the hydraulic lock; the lower surface of the second unit 3 and the oil cylinder step surface 6 form a sealing structure through a combined pad 7, and the outer diameter of the second unit 3 is larger than that of the combined pad 7. The transition joint structure 1 for the oil cylinder is made of common metal materials.
As shown in fig. 5, the length of the first hollow structure 4 is greater than the depth of the screw 10 of the hydraulic lock inserted into the first hollow structure 4, preferably, the height difference between the bottom of the hole of the first hollow structure 4 and the root of the screw 10 of the hydraulic lock is at least 5mm, which can prevent the transitional joint structure 1 for the oil cylinder from being damaged during installation.
In this embodiment, preferably, the outer diameter of the first unit 2 is 39mm, the outer diameter of the second unit 3 is 18mm, the height of the transitional joint structure 1 for the oil cylinder is 47mm, the height of the first unit 2 is 30mm, the height of the second unit 3 is 17mm, the height of the first hollow structure 4 is 24mm, and the depth of the screw 10 of the hydraulic lock inserted into the first hollow structure 4 is 17mm.
The transitional joint structure of the embodiment is applied to a luffing cylinder of a 14-meter overhead working truck, can solve the problem of connection interference in the installation and connection process of a hydraulic lock and the cylinder, and can realize smooth matching of the hydraulic lock with any size of connection surface and the cylinder.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A transition joint structure for an oil cylinder is an integrally formed structure and is characterized by comprising a first unit and a second unit, wherein a cylindrical first hollow structure is arranged in the first unit, a cylindrical second hollow structure is arranged in the second unit, and the first hollow structure and the second hollow structure are coaxial structures; the inner side surface of the first unit is provided with threads, and the outer side surface of the second unit is of a cylindrical structure and is provided with threads; the first unit is connected with a screw of the hydraulic lock through a thread arranged on the inner side surface, and the second unit is connected with the step surface of the oil cylinder through a thread arranged on the outer side surface.
2. A transition joint structure for an oil cylinder according to claim 1, wherein an outer diameter of the first hollow structure is slightly larger than an outer diameter of the second hollow structure, and the first hollow structure and the second hollow structure are connected by a round table surface.
3. The transitional joint structure for the oil cylinder according to any one of claims 1 or 2, characterized in that the length of the first hollow structure is greater than the depth of the screw of the hydraulic lock inserted into the first hollow structure.
4. The transitional joint structure for oil cylinders of claim 3, characterized in that the hole bottom of the first hollow structure has a height difference of at least 5mm from the root of the screw of the hydraulic lock.
5. The transitional joint structure for a cylinder according to claim 1, wherein the outer side surface structure of the first unit is a cylindrical structure or a hexagonal prism structure with a symmetrical section.
6. The transitional joint structure for an oil cylinder of claim 1, wherein a junction between the lower surface of the first unit and the upper surface of the second unit is provided with a chamfer structure.
7. The transitional joint structure for a cylinder according to claim 1, wherein the upper surface of the first unit is a smooth table surface, and forms a sealing structure with the O-ring of the hydraulic lock.
8. A transitional joint structure for a cylinder as claimed in claim 1, wherein the lower surface of the second unit forms a sealing structure with the stepped surface of the cylinder through a combination pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223243779.9U CN218670042U (en) | 2022-12-05 | 2022-12-05 | Transition joint structure for oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223243779.9U CN218670042U (en) | 2022-12-05 | 2022-12-05 | Transition joint structure for oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670042U true CN218670042U (en) | 2023-03-21 |
Family
ID=85548275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223243779.9U Active CN218670042U (en) | 2022-12-05 | 2022-12-05 | Transition joint structure for oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218670042U (en) |
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2022
- 2022-12-05 CN CN202223243779.9U patent/CN218670042U/en active Active
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