CN215805473U - Pressure regulating type relief valve structure of hydraulic pipe fitting machining tool - Google Patents
Pressure regulating type relief valve structure of hydraulic pipe fitting machining tool Download PDFInfo
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- CN215805473U CN215805473U CN202121710911.5U CN202121710911U CN215805473U CN 215805473 U CN215805473 U CN 215805473U CN 202121710911 U CN202121710911 U CN 202121710911U CN 215805473 U CN215805473 U CN 215805473U
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- pressure relief
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Abstract
The utility model discloses a pipe fitting machining tool, and provides a pressure-regulating type pressure relief valve structure of a hydraulic pipe fitting machining tool, which is simple in structure, convenient to assemble and disassemble and reliable in positioning, and can freely adjust the pressure relief value of a pressure relief valve according to use requirements, so that the technical problems that the positioning reliability of the pressure relief valve is poor, the assembly and disassembly are time-consuming and labor-consuming, the pressure relief pressure cannot be adjusted and the like in the prior art are solved.
Description
Technical Field
The utility model relates to a pipe fitting machining tool, in particular to a pressure regulating type pressure release valve structure of a hydraulic pipe fitting machining tool, which is simple in structure, convenient to disassemble and assemble and reliable in positioning and can freely adjust the pressure release value of the pressure release valve according to use requirements.
Background
The pressure relief valve in the existing hydraulic pipe fitting machining tool generally compresses a pressure relief valve sleeve on a pipe fitting machining tool body through the head of a pressure regulating screw, so that the following problems generally exist:
1. the pressure regulating screw is pressed outside the pressure relief valve sleeve on one side, so that the pressure relief valve sleeve is unbalanced in stress and prone to deflection, the pressure relief valve sleeve and a valve core of the pressure relief valve are not coaxial, abrasion is increased, and the performance and the service life of the pressure relief valve are affected.
2. Because the pressure relief valve pocket is tightly matched with the pressure relief valve pocket, the pressure relief valve pocket can only be adjusted in and cannot be adjusted out (the pressure relief valve pocket cannot overcome the friction force and cannot be moved outwards under the action of spring force), and therefore the pressure relief pressure of the pressure relief valve cannot be adjusted.
3. The pressure regulating screw is easy to break and has poor reliability.
4. The relief valve is difficult to disassemble and repair.
Disclosure of Invention
The utility model mainly provides a pressure-regulating type pressure release valve structure of a hydraulic pipe fitting machining tool, which is simple in structure, convenient to assemble and disassemble and reliable in positioning, can freely adjust the pressure release value of the pressure release valve according to use requirements, and solves the technical problems that the pressure release valve in the prior art is poor in positioning reliability, time-consuming and labor-consuming to assemble and disassemble, the pressure release pressure cannot be adjusted and the like.
The technical problem of the utility model is mainly solved by the following technical scheme: the pressure regulating type pressure relief valve structure of the hydraulic pipe machining tool comprises a pressure relief valve in a pressure relief valve cavity on a body, wherein a valve sleeve on the pressure relief valve is screwed in a port of the pressure relief valve cavity, a jacking stud is arranged on the body corresponding to the valve sleeve, and the inner side end of the jacking stud is arranged on the outer annular surface of the valve sleeve. The valve sleeve on the pressure relief valve is screwed and fixed in the cavity of the pressure relief valve through threads, the pressure relief pressure value of the pressure relief valve can be freely adjusted by screwing in or screwing out the valve sleeve, the structure is simple, the dismounting is convenient, the valve sleeve is arranged at the top of the valve sleeve through the jacking stud on the side surface after the valve sleeve is adjusted in place so as to be locked, the valve sleeve is prevented from being loosened, and the positioning is reliable.
Preferably, the valve sleeve comprises a matching section in sealed sliding connection with the cavity of the pressure release valve and a thread section integrally connected with the outer side end of the matching section, and the thread section is screwed and fixed in the port of the cavity of the pressure release valve. The valve sleeve is in airtight sliding connection with the inner ring surface of the pressure release valve cavity through the matching section, is screwed and fixed through the thread section, and is simple in structure and convenient to install.
More preferably, a counter bore is arranged at the port of the pressure relief valve cavity corresponding to the threaded section, and the threaded section is screwed on the inner ring surface of the counter bore. The thread section is screwed on the inner ring surface of the counter bore, so that the valve sleeve and the pressure relief valve cavity are conveniently processed in a thread fit mode.
More preferably, an O-ring seal is interposed between an outer annular surface of the fitting section and an inner wall surface of the relief valve chamber. The matching section is in sealed sliding connection with the inner wall surface of the pressure relief valve cavity through the O-shaped sealing ring, and the matching section is simple and reliable.
Preferably, the inner side end of the jacking stud is vertically overhead on a valve sleeve thread ring surface matched with the pressure relief valve cavity. The inner side end of the jacking stud is vertically arranged on the threaded ring surface of the valve sleeve in an overhead mode, so that the hole position where the jacking stud is located is convenient to machine, the contact area between the jacking stud and the valve sleeve is large, friction force is large, and the anti-loosening effect is good.
Preferably, an auxiliary mounting hole is provided on an outer end surface of the valve sleeve. The valve sleeve is convenient to disassemble and assemble through the auxiliary mounting hole.
Preferably, the auxiliary clamping part is formed by extending outwards the corresponding valve sleeve in the auxiliary mounting hole. The clamping part is convenient to be assembled and disassembled by a clamping tool.
Preferably, the pressure relief valve comprises a valve seat fixed at the bottom of the pressure relief valve cavity and a valve core mutually plugged on a port of the valve seat, a valve sleeve is sleeved and fixed at the outer end of the valve core, a compression spring is sleeved on the valve core corresponding to the inner side of the valve sleeve, and the compression spring is clamped between the inner end of the valve core and the valve sleeve.
Therefore, the pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool has the following advantages: the valve sleeve is screwed and fixed in the pressure relief valve cavity through threads, the free adjustment of the pressure relief pressure value of the pressure relief valve can be realized by screwing in or screwing out the valve sleeve, the structure is simple, the pressure relief valve is convenient to disassemble and assemble, the valve sleeve is prevented from loosening and being positioned reliably by jacking the screw bolt overhead valve sleeve after the adjustment is in place.
Description of the drawings:
FIG. 1 is a schematic structural view of a first embodiment of the present invention;
fig. 2 is a schematic structural view of a second embodiment of the present invention.
The specific implementation mode is as follows:
the technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1, the pressure-regulating type pressure-relief valve structure of the hydraulic pipe processing tool of the present invention includes a pressure-relief valve cavity 2 on a body 1 of the hydraulic pipe processing tool, a pressure-relief valve 3 is installed in the pressure-relief valve cavity 2, the pressure-relief valve 3 includes a valve seat 32 fixed at the bottom of the pressure-relief valve cavity 2 and a valve core 33 mutually sealed and plugged at a port of the valve seat 32, a valve sleeve 31 is fixed on an outer end of the valve core 33 in a sleeved manner, a compression spring 34 is sleeved on the corresponding valve core 33 on an inner side of the valve sleeve 31, and the compression spring 34 is clamped between an inner end of the valve core 33 and the valve sleeve 31. The valve sleeve 31 comprises a matching section 311 and a thread section 312 coaxially and integrally connected to the outer side end of the matching section 311, the matching section 311 is slidably connected in the pressure relief valve cavity 2, an O-shaped sealing ring 35 is clamped between the outer annular surface of the matching section 311 and the inner wall surface of the pressure relief valve cavity 2, the O-shaped sealing ring 35 is embedded in an annular groove corresponding to the outer annular surface of the matching section 311, a counter bore 21 is arranged at the port of the pressure relief valve cavity 2, and the thread section 312 is mutually matched and screwed on the inner annular surface of the counter bore 21. The body 1 corresponding to the thread section 312 is screwed with the jacking stud 4, and the inner side end of the jacking stud 4 is vertically arranged on the outer ring surface of the thread section 312. In order to facilitate the disassembly and assembly of the pressure relief valve 3, two auxiliary mounting holes 5 are formed in the outer end face of the threaded section 312, and a connecting line of the two auxiliary mounting holes 5 passes through the center of the threaded section 312.
Example 2:
as shown in fig. 2, the fitting section 311 and the threaded section 312 in this embodiment are of a split structure, and both may adopt a connection manner such as interference fit or welding, a tightening stud 4 is screwed on the body 1 corresponding to the fitting section 311, an inner side end of the tightening stud 4 is vertically arranged on an outer annular surface of the fitting section 311 close to the threaded section 312, the auxiliary mounting hole 5 is located on an outer end surface of the threaded section 312, and the fitting section 311 fitted with the threaded section 312 extends outwards to form the auxiliary clamping portion 6. The rest is exactly the same as in example 1.
The specific embodiments described herein are merely illustrative of the principles of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (8)
1. The utility model provides a pressure regulating formula relief valve structure of hydraulic pipe fitting machining tool, includes relief valve (3) in pressure relief valve chamber (2) on body (1), its characterized in that: the valve sleeve (31) on the pressure relief valve (3) is screwed in a port of the pressure relief valve cavity (2), a jacking stud (4) is arranged on the body (1) corresponding to the valve sleeve (31), and the inner side end of the jacking stud (4) is arranged on the outer annular surface of the valve sleeve (31).
2. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 1, characterized in that: the valve sleeve (31) comprises a matching section (311) which is connected in the pressure relief valve cavity (2) in a sealed sliding mode and a thread section (312) which is connected to the outer side end of the matching section (311) in an integrated mode, and the thread section (312) is connected and fixed in a port of the pressure relief valve cavity (2) in a screwing mode.
3. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 2, characterized in that: the port of the pressure relief valve cavity (2) corresponding to the thread section (312) is provided with a counter bore (21), and the thread section (312) is screwed on the inner ring surface of the counter bore (21).
4. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 2, characterized in that: an O-shaped sealing ring (35) is clamped between the outer ring surface of the matching section (311) and the inner wall surface of the pressure relief valve cavity (2).
5. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 1, characterized in that: the inner side end of the jacking stud (4) is vertically overhead on the thread ring surface of a valve sleeve (31) matched with the pressure relief valve cavity (2).
6. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 1, characterized in that: and an auxiliary mounting hole (5) is formed in the outer end face of the valve sleeve (31).
7. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 6, characterized in that: and the corresponding valve sleeve (31) in the auxiliary mounting hole (5) extends outwards to form an auxiliary clamping part (6).
8. The pressure regulating type pressure relief valve structure of the hydraulic pipe fitting machining tool according to claim 1, characterized in that: the pressure relief valve (3) comprises a valve seat (32) fixed at the bottom of the pressure relief valve cavity (2) and a valve core (33) mutually plugged on the port of the valve seat (32), a valve sleeve (31) is sleeved and fixed at the outer side end of the valve core (33), a compression spring (34) is sleeved on the valve core (33) corresponding to the inner side of the valve sleeve (31), and the compression spring (34) is clamped between the inner side end of the valve core (33) and the valve sleeve (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121710911.5U CN215805473U (en) | 2021-07-26 | 2021-07-26 | Pressure regulating type relief valve structure of hydraulic pipe fitting machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121710911.5U CN215805473U (en) | 2021-07-26 | 2021-07-26 | Pressure regulating type relief valve structure of hydraulic pipe fitting machining tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805473U true CN215805473U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121710911.5U Active CN215805473U (en) | 2021-07-26 | 2021-07-26 | Pressure regulating type relief valve structure of hydraulic pipe fitting machining tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805473U (en) |
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2021
- 2021-07-26 CN CN202121710911.5U patent/CN215805473U/en active Active
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