CN213711453U - Guide and positioning structure arranged on middle end cover - Google Patents
Guide and positioning structure arranged on middle end cover Download PDFInfo
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- CN213711453U CN213711453U CN202022632639.5U CN202022632639U CN213711453U CN 213711453 U CN213711453 U CN 213711453U CN 202022632639 U CN202022632639 U CN 202022632639U CN 213711453 U CN213711453 U CN 213711453U
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- end cover
- axial hole
- positioning sleeve
- middle end
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Abstract
The utility model belongs to the technical field of gas-liquid pressure cylinder, in particular to a guiding and positioning structure arranged on a middle end cover, which comprises a middle end cover and a positioning sleeve, wherein the positioning sleeve is formed by integrally molding a bottom plate, a first step part arranged on the bottom plate and a boss arranged on the first step part; be equipped with the axial hole in the well end cover, the axial hole is including the cavity of installation sealing washer and the section that holds that is used for holding first step portion, hold section and cavity intercommunication, the boss is located a cavity tip. By adopting the structure, the guiding and positioning functions can be realized by arranging the positioning sleeve, and the cost is low.
Description
Technical Field
The utility model relates to a gas-liquid pressurized cylinder technical field specifically indicates a direction and location structure that is used for gas-liquid pressurized cylinder's well end cover to go up.
Background
The gas-liquid pressure cylinder comprises a middle end cover, wherein an axial hole for the pressure rod to pass through is formed in the middle end cover, in order to ensure that the free end of the pressure rod is quickly and accurately inserted into the axial hole, a structure for guiding needs to be arranged at the opening of the axial hole, a through hole coaxial with the axial hole is formed in the guiding structure, the through hole is communicated with the axial hole, meanwhile, a sealing ring is arranged in the axial hole, axial positioning needs to be carried out, and the sealing ring is prevented from moving in the axial hole.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a guide and positioning structure for guiding a pressurizing rod and positioning a seal ring.
In order to achieve the above object, the utility model adopts the following technical scheme: a guiding and positioning structure arranged on a middle end cover comprises the middle end cover and a positioning sleeve, wherein the positioning sleeve is formed by integrally molding a bottom plate, a first step part arranged on the bottom plate and a boss arranged on the first step part; be equipped with the axial hole in the well end cover, the axial hole is including the cavity of installation sealing washer and the section that holds that is used for holding first step portion, hold section and cavity intercommunication, the boss is located a cavity tip. The positioning sleeve is assembled at one end part of the middle end cover, the free end of the pressurizing rod is inserted into a through hole of the positioning sleeve, the through hole is coaxial with and communicated with the axial hole of the middle end cover, so that the pressurizing rod can be conveniently guided to be inserted into the axial hole, the boss is positioned in the end part of the cavity, the sealing ring in the cavity can be axially positioned, and the sealing ring is prevented from moving along the axial hole in the cavity; therefore, the guiding and positioning functions can be realized by arranging the positioning sleeve.
Specifically, when the assembly, it is coaxial with the axial hole to perforate, and the outer wall and the cavity inner wall of boss are laminated mutually, first step portion outer wall with hold a section inner wall and laminate mutually.
In order to reduce the cost, the positioning sleeve is made of stainless steel on the premise of meeting the use requirement.
The beneficial technical effects are as follows: a positioning sleeve is arranged at one end part of the middle end cover, the free end of the pressurizing rod is inserted into a through hole of the positioning sleeve, the through hole is coaxial with and communicated with the axial hole of the middle end cover, so that the pressurizing rod can be conveniently guided to be inserted into the axial hole, and the boss is positioned in the end part of the cavity and can axially position the sealing ring in the cavity to prevent the sealing ring from moving along the axial hole in the cavity; therefore, the positioning sleeve can realize the functions of guiding and positioning, and the cost is low.
Drawings
Fig. 1 is a sectional view of the middle end cap and the sealing ring according to the embodiment of the present invention after being assembled;
FIG. 2 is a diagram illustrating a usage status of an embodiment of the present invention;
fig. 3 is a partially enlarged view of fig. 2.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-3, the embodiment of the present invention provides a guiding and positioning structure disposed on a middle end cap, which includes a middle end cap 1, wherein one end of the middle end cap is connected to a pressurizing cylinder 2, and the other end is connected to a pressurizing cylinder 3.
The positioning sleeve is characterized by further comprising a positioning sleeve 4, wherein the positioning sleeve is formed by integrally molding a base plate 401, a first step part 402 arranged on the base plate and a boss 403 arranged on the first step part, and a through hole 4a penetrating through the base plate, the first step part and the boss is formed in the positioning sleeve 4 along the axial direction of the positioning sleeve; be equipped with axial hole 101 in the well end cover, the axial hole is including the cavity 101a of installation sealing washer 5 and the section that holds that is used for holding first step portion 402, hold section and cavity 101a intercommunication, the boss is located a cavity 101a tip. That is, the receiving section and the cavity 101a are part of the axial hole 101, but have different inner diameters due to their different functions.
The axial hole 101 is a cylindrical hole, and therefore, the bottom plate 401, the first step 402, and the boss 403 are all circular.
The positioning sleeve 4 is assembled at one end part of the middle end cover 1, the free end of a pressurizing rod 6 movably arranged in the pressurizing cylinder body 2 is inserted into a through hole 4a of the positioning sleeve, the through hole is coaxial with and communicated with the axial hole 101 of the middle end cover, so that the pressurizing rod 6 is conveniently guided to be inserted into the axial hole, the boss 403 is positioned in the end part of the cavity 101a, two sealing rings 5 which are arranged back to back in the cavity can be axially positioned, in the dynamic pressurizing process, the sealing rings 5 are prevented from moving along the axial hole 101 in the cavity, and the service life of the sealing rings 5 can be further prolonged; thus, the positioning sleeve 4 can realize the functions of guiding and positioning.
The positioning sleeve 4 is adopted to fix the two sealing rings 5 which are arranged back to back, the cavity 101a which is used for installing the sealing rings 5 in the middle end cover 1 can adopt an open structure, the cavity 101a adopts the open structure, the processing is convenient, and the cavity 101a can be bored by a boring cutter during the processing; the existing common sealing ring mounting cavity is of a semi-closed structure, and a hook groove cutter is needed for processing when the mounting cavity is processed, so that the defects that the processing size precision is low, the surface smoothness is not high, the processing speed is low, and metal chips are inconvenient to remove, and the service life of the sealing ring is shortened. The cavity 101a is of an open structure and is machined by a boring cutter, and the tool has the advantages of being beneficial to improving the size precision, the smoothness of the inner wall of the cavity and the machining efficiency, being convenient to remove metal chips, assembling, maintaining and replacing the sealing ring and prolonging the service life of the sealing ring.
Specifically, during assembly, the through hole 4a is coaxial with the axial hole 101, the outer wall of the boss 403 is attached to the inner wall of the cavity 101a, and the outer wall of the first step portion 402 is attached to the inner wall of the accommodating section.
In order to reduce the cost, the positioning sleeve 4 is made of engineering plastics, such as ABS, on the premise of meeting the use requirement.
In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.
It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all embodiments, and that the appended drawings illustrate preferred embodiments of the present invention, but do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.
Claims (2)
1. A guiding and positioning structure arranged on a middle end cover comprises the middle end cover and is characterized by also comprising a positioning sleeve, wherein the positioning sleeve is formed by integrally molding a bottom plate, a first step part arranged on the bottom plate and a boss arranged on the first step part; be equipped with the axial hole in the well end cover, the axial hole is including the cavity of installation sealing washer and the section that holds that is used for holding first step portion, hold section and cavity intercommunication, the boss is located a cavity tip.
2. The structure of claim 1, wherein the through hole is coaxial with the axial hole, the outer wall of the boss is attached to the inner wall of the cavity, and the outer wall of the first step portion is attached to the inner wall of the accommodating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022632639.5U CN213711453U (en) | 2020-11-13 | 2020-11-13 | Guide and positioning structure arranged on middle end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022632639.5U CN213711453U (en) | 2020-11-13 | 2020-11-13 | Guide and positioning structure arranged on middle end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213711453U true CN213711453U (en) | 2021-07-16 |
Family
ID=76805467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022632639.5U Active CN213711453U (en) | 2020-11-13 | 2020-11-13 | Guide and positioning structure arranged on middle end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213711453U (en) |
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2020
- 2020-11-13 CN CN202022632639.5U patent/CN213711453U/en active Active
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