CN219570470U - Low-noise plug-in type overflow valve for hydraulic switch machine - Google Patents
Low-noise plug-in type overflow valve for hydraulic switch machine Download PDFInfo
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- CN219570470U CN219570470U CN202221723466.0U CN202221723466U CN219570470U CN 219570470 U CN219570470 U CN 219570470U CN 202221723466 U CN202221723466 U CN 202221723466U CN 219570470 U CN219570470 U CN 219570470U
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- adjusting rod
- buffer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The utility model discloses a low-noise plug-in overflow valve for a hydraulic switch machine, which comprises a main valve body, wherein the main valve body is hollow, the main valve body is provided with a first end and a second end, a buffer component is arranged in the main valve body, a flow regulating component is provided with the first end of the main valve body, one end of the flow regulating component is abutted against one end of the buffer component, an adjusting mechanism is arranged at the second end of the main valve body, the adjusting mechanism comprises an adjusting rod, one end of the adjusting rod, which is close to the main valve body, is abutted against the other end of the buffer component, and a locking component is arranged at one end, which is far away from the main valve body, and can limit and lock an adjusting rod when oil is regulated, so that the condition that the adjusting rod is loosened and falls off under pressure pulse is prevented, the stability of flow regulating flow is facilitated, the adjusting rod can play a protective role, and the service life of the device is prolonged.
Description
Technical Field
The disclosure relates to the technical field of hydraulic control, in particular to a low-noise plug-in type overflow valve for a hydraulic switch machine.
Background
The overflow valve is a hydraulic pressure control valve, and mainly plays roles of constant pressure overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment. When the hydraulic system pressure reaches the valve set-point pressure, the valve will open the spill. The types of relief valves include direct acting relief valves and pilot operated relief valves. The direct type overflow valve has simple structure, strong pollution resistance and more sensitive reaction than the pilot type overflow valve; the pilot relief valve may have a relatively large flow rate, but has a small adjustment pressure deviation.
At present, the plug-in type overflow valve is in actual work due to the reasons of structure, materials and the like, and in the pressure adjusting process, under the action of pressure impact and flow pulse of a hydraulic system, the phenomenon that an adjusting rod in the overflow valve is loosened or even falls off is caused, so that the overflow pressure fluctuation is increased, and the service life of the overflow valve is influenced.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a low noise cartridge overflow valve for a hydraulic switch machine.
In a first aspect, the present utility model provides a low noise cartridge overflow valve for a hydraulic switch machine, comprising:
the main valve body is hollow, the main valve body is provided with a first end and a second end, a buffer assembly is arranged in the main valve body, and the buffer assembly and the main valve body are coaxially arranged;
the flow regulating assembly is arranged at the first end and is abutted against one end of the buffer assembly;
the adjusting mechanism is arranged at the second end and comprises an adjusting rod, the adjusting rod and the main valve body are coaxially arranged, one end of the adjusting rod, which is close to the main valve body, is abutted against the other end of the buffer component, one end, which is far away from the main valve body, of the adjusting rod is provided with a locking component, and the locking component is used for limiting and locking the adjusting rod.
According to the technical scheme provided by the embodiment of the utility model, a blind hole is formed in one end, far away from the main valve body, of the adjusting rod, the locking assembly is provided with a locking cap, the locking cap is provided with a groove, the groove is in threaded connection with the blind hole, the locking cap is also provided with a jack, the jack and the adjusting rod are coaxially arranged, the jack is communicated with the groove, an insert is arranged in the jack, and one end, close to the main valve body, of the insert is inserted into the blind hole;
the locking cap is further provided with a clamping hole perpendicular to the axis of the jack, the clamping hole is communicated with the jack, a clamping piece is arranged in the clamping hole, a clamping groove is formed in the plug-in unit, and one end, close to the plug-in unit, of the clamping piece is inserted into the clamping groove.
According to the technical scheme provided by the embodiment of the utility model, the adjusting mechanism further comprises a positioning piece, the positioning piece is in threaded connection with the second end of the main valve body, and one end, close to the main valve body, of the adjusting rod is in threaded connection with the positioning piece;
the locking assembly is further provided with a locking sleeve which is in threaded connection with the adjusting rod, and the locking sleeve is located between the locating piece and the locking cap.
According to the technical scheme provided by the embodiment of the utility model, the buffer assembly comprises a first buffer seat 2 and a second buffer seat 3, wherein the first buffer seat is arranged close to the first end of the main valve body, the second buffer seat 3 is arranged close to the second end of the main valve body, and protruding column heads are arranged on opposite side walls of the first buffer seat 2 and the second buffer seat 3;
the buffer assembly further comprises an elastic piece, and two ends of the elastic piece are respectively sleeved on the two protruding columns.
According to the technical scheme provided by the embodiment of the utility model, the flow regulating assembly comprises a flow regulating seat, a sliding groove is formed in the flow regulating seat, the flow regulating assembly further comprises a flow regulating core, the flow regulating core is positioned between the first buffer seat and the flow regulating seat, and one end, close to the flow regulating seat, of the flow regulating core is arranged in the sliding groove in a sliding manner;
the flow regulating core is in butt joint with the first buffer seat, the side wall of the flow regulating core, which is close to the first buffer seat, is provided with a limiting body, the first buffer seat is provided with a limiting through hole, and the limiting body is inserted into the limiting through hole.
According to the technical scheme provided by the embodiment of the utility model, an oil outlet is formed in the side wall, close to the first end, of the main valve body, the oil outlet is communicated with the inside of the main valve body, an oil inlet is formed in the flow regulating seat, and the sliding groove is communicated with the oil inlet;
the second buffer seat is provided with a first sealing groove, a first sealing piece is arranged in the first sealing groove, the second end of the main valve body is provided with a second sealing groove, and a second sealing piece is arranged in the second sealing groove;
the end of the adjusting rod, which is close to the main valve body, is provided with a clamping groove, and a clamping ring is arranged in the clamping groove.
To sum up, this technical scheme specifically discloses a hydraulic switch machine low noise cartridge formula overflow valve, including the main valve body, the inside cavity of main valve, and the inside buffer module that sets up of main valve body, the main valve body has first end and second end, first end is provided with the flow regulating subassembly, flow regulating subassembly and buffer module one end butt, main valve body second end sets up adjustment mechanism, adjustment mechanism includes the regulation pole, the one end that the regulation pole is close to the main valve body and buffer module other end butt, the one end that the regulation pole kept away from the main valve body is provided with locking subassembly, when adjusting the flow to fluid, locking subassembly can carry out spacing locking to the regulation pole, prevent to adjust the condition that the regulation pole that leads to because of fluid pressure is too big in the flow regulating process becomes flexible drops, be favorable to adjusting the stability of flow, improve device life.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 is a schematic diagram of a low noise cartridge overflow valve for a hydraulic switch machine.
Reference numerals in the drawings: 1. a main valve body; 2. a first buffer seat; 3. a second buffer seat; 4. an elastic member; 5. a flow regulating seat; 6. a flow regulating core; 7. a limiting body; 8. an adjusting rod; 9. a positioning piece; 10. a locking sleeve; 11. a locking cap; 12. an insert; 13. a first seal; 14. a second seal; 15. a collar; 16. a protruding column head; 17. a clamping piece; 18. a clamping hole; 19. a blind hole; 20. an oil outlet; 21. and an oil inlet.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, a low noise plug-in overflow valve for a hydraulic switch machine is shown in the schematic structure of fig. 1, the main valve body 1 is hollow, the main valve body 1 has a first end and a second end, two oil outlets 20 perpendicular to the axis of the main valve body 1 are provided on the side wall of the main valve body 1 near the first end, the two oil outlets 20 are disposed opposite to each other, and the two oil outlets 20 are all connected with the inside of the main valve body 1.
As shown in fig. 1, the buffer assembly is disposed in the main valve body 1, the buffer assembly includes a first buffer seat 2, the first buffer seat 2 is disposed near a first end of the main valve body 1, a protruding column head 16 is disposed on a side wall of the first buffer seat 2 far away from the first end of the main valve body 1, a limiting through hole is disposed on the first buffer seat 2, and the limiting through hole and the main valve body 1 are coaxially disposed;
the buffer assembly further comprises a second buffer seat 3, the second buffer seat 3 is close to the second end of the main valve body 1, and a convex column head 16 is arranged on the side wall of the second buffer seat 3 away from the second end;
the buffer assembly further comprises an elastic piece 4, the elastic piece 4 is arranged between the first buffer seat 2 and the second buffer seat 3, two ends of the elastic piece 4 are respectively sleeved on the two protruding column heads 16, and the elastic piece 4 and the main valve body 1 are coaxially arranged.
The elastic member 4 is of the type: and (3) a spring.
As shown in fig. 1, the flow regulating assembly is disposed at the first end of the main valve body 1, the flow regulating assembly includes a flow regulating seat 5, the flow regulating seat 5 is inserted at the first end of the main valve body 1, and the flow regulating seat 5 and the main valve body 1 are assembled by interference, so that tight connection between the flow regulating seat 5 and the main valve body 1 is facilitated, and the flow regulating seat 5 can be prevented from falling off.
As shown in fig. 1, the chute is formed inside the flow regulating seat 5, the flow regulating core 6 is disposed between the first buffer seat 2 and the flow regulating seat 5, one end of the flow regulating core 6, which is close to the flow regulating seat 5, is slidably disposed in the chute, the limiting body 7 is disposed on the sidewall of the flow regulating core 6, which is close to the first buffer seat 2, and the flow regulating core 6 is abutted against the first buffer seat 2, and the limiting body 7 is inserted into the limiting through hole of the first buffer seat 2.
The two oil inlets 21 are arranged on the flow regulating seat 5 along the direction perpendicular to the axis of the main valve body 1, the two oil inlets 21 are oppositely arranged, the two oil inlets 21 are communicated with the chute of the flow regulating seat 5, when the device is in a first state, oil enters the chute of the flow regulating seat 5 from the oil inlets 21, then the flow regulating core 6 is extruded along the axis direction of the main valve body 1, the flow regulating core 6 pushes the first buffer seat 2 to be far away from the flow regulating seat 5, oil can enter the main valve body 1 from the chute and flow out from the oil outlet 20, so that a flow regulating passage is formed, the overflow purpose is achieved, when the oil pushes the flow regulating core 6, the oil is shunted through the inclined surface structure of the flow regulating core 6, the impact force of the oil on the flow regulating core 6 can be reduced, the side wall width of the flow regulating core 6, which is close to the first buffer seat 2, is larger than the diameter of the limiting through hole, the stress area between the flow regulating core 6 and the first buffer seat 2 can be increased, the structural fit between the limiting through hole and the limiting body 7 can prevent the main valve core 6 from generating the noise perpendicular to the axis direction of the main valve body 1, thereby prolonging the service life of the flow regulating core 6;
the two oil outlets 20 on the main valve body 1 are correspondingly arranged, the top and bottom inclined planes of the flow regulating core 6 are symmetrically arranged about the axis, so that the buffer effect of the flow regulating core 6 on high-pressure oil can be improved, the side walls of the two inclined planes of the flow regulating core 6 can be subjected to equal high-pressure oil impact force, the shaking probability of the flow regulating core 6 is reduced, the buffered high-pressure oil can overflow from the two oil outlets 20, the overflow efficiency is improved, and the flow state of oil output is stable.
As shown in fig. 1, the first seal groove is circumferentially provided on the surface of the second damper seat 3, and the first seal 13 is provided in the first seal groove, whereby oil leakage can be prevented from occurring in the first state.
As shown in fig. 1, the second sealing groove is formed at the second end of the main valve body 1, and the second sealing element 14 is arranged in the second sealing groove, so that oil leakage can be further prevented.
As shown in fig. 1, a first positioning thread is formed at the second end of the main valve body 1, the first positioning thread is positioned between the second sealing groove and the second buffer seat 3, an adjusting mechanism is arranged at the second end of the main valve body 1, the adjusting mechanism comprises a positioning piece 9, a second positioning thread corresponding to the first positioning thread is circumferentially formed on the outer wall of the positioning piece 9, and the second end of the main valve body 1 is in threaded connection with the positioning piece 9 through the first positioning thread and the second positioning thread;
the through hole is arranged on the locating piece 9 along the axis direction of the main valve body 1, the through hole comprises a first through hole and a second through hole with different diameters, the diameter of the first through hole is smaller than that of the second through hole, the first adjusting screw thread is arranged on the inner wall of the first through hole, and the second adjusting screw thread is arranged on the inner wall of the second through hole.
As shown in fig. 1, the adjusting mechanism further comprises an adjusting rod 8, the adjusting rod 8 and the main valve body 1 are coaxially arranged, the adjusting rod 8 is provided with a first section and a second section with different diameters, the first section diameter corresponds to the first through hole diameter, the second section diameter corresponds to the second through hole diameter, a third adjusting thread corresponding to the first adjusting thread is circumferentially arranged on the surface of the first section, a fourth adjusting thread corresponding to the second adjusting thread is circumferentially arranged on the surface of the second section, the first section and the first through hole are in threaded connection with each other through the first adjusting thread and the third adjusting thread, and the second section and the second through hole are in threaded connection with each other through the second adjusting thread and the fourth adjusting thread, so that the adjusting rod 8 can be in threaded connection in the positioning piece 9, and the adjusting rod 8 is in butt joint with the second buffer seat 3;
the blind hole 19 is formed in one end, far away from the first section, of the second section, the clamping groove is formed in one end, far away from the blind hole 19, of the first section of the adjusting rod 8, the clamping ring 15 is arranged in the clamping groove, after the adjusting rod 8 is screwed into the positioning piece 9, when one end, far away from the blind hole 19, of the first section of the adjusting rod 8 extends out of the positioning piece 9, the clamping ring 15 is placed in the clamping groove, and therefore the adjusting rod 8 can be limited, and the adjusting rod 8 is prevented from falling reversely.
As shown in fig. 1, the locking assembly is arranged on the second section, the locking assembly comprises a locking sleeve 10, locking threads corresponding to the fourth adjusting threads are circumferentially arranged on the inner wall of the locking sleeve 10, the locking sleeve 10 is in threaded connection with the second section of the adjusting rod 8 through the locking threads and the fourth adjusting threads, and the locking sleeve 10 is arranged close to the positioning piece 9;
the locking assembly further comprises a locking cap 11, a groove corresponding to the diameter of the second section of the adjusting rod 8 is formed in the locking cap 11, locking threads corresponding to fourth adjusting threads are circumferentially formed in the inner wall of the groove, therefore, the groove is sleeved on the blind hole 19, the locking cap 11 is in threaded connection with the second section of the adjusting rod 8 through the locking threads and the fourth adjusting threads, and the locking cap 11 is arranged on one side, far away from the locating piece 9, of the locking sleeve 10.
As shown in fig. 1, the insertion hole is formed in the locking cap 11 along the axial direction of the main valve body 1, the insertion hole is communicated with the groove, the plug-in unit 12 is arranged in the insertion hole, and one end of the plug-in unit 12 close to the main valve body penetrates through the insertion hole to be inserted into the blind hole 19 in a size and clearance fit with the appearance of the plug-in unit 12.
The types of the insert 12 are, for example: and (5) hexagonal pin.
As shown in fig. 1, a clamping hole 18 is formed in the locking cap 11 along the direction perpendicular to the axis of the main valve body 1, the clamping hole 18 is communicated with the insertion hole, and a clamping piece 17 is arranged in the clamping hole 18;
the clamping groove is formed in the plug-in 12, the size of the clamping groove corresponds to the shape of the clamping piece 17, and one end, close to the plug-in 12, of the clamping piece 17 is inserted into the clamping groove, so that the movement of the plug-in 12 can be limited.
The type of the clamping member 17 is, for example: and positioning the glass beads.
As shown in fig. 1, the main valve body 1 is provided with a clearance groove at a position close to the positioning piece 9 and a position close to the first through hole of the second through hole in the positioning piece 9, and the positioning piece 9 and the main valve body 1 and the positioning piece 9 and the adjusting rod 8 are assembled more tightly.
The technical scheme discloses a low-noise plug-in type overflow valve for a hydraulic switch machine, which is closely arranged in structure, when each part is installed, a flow regulating seat 5 and a first end of a main valve body 1 are firstly assembled in a plug-in manner, then a flow regulating core 6, a first buffer seat 2 and an elastic piece 4 can be sequentially installed in the main valve body 1 from a second end of the main valve body 1, a limit body 7 of the flow regulating core 6 is ensured to be inserted in a limit through hole of the first buffer seat 2, one end of the elastic piece 4 is sleeved on a raised column head 16 of the first buffer seat 2, then a second buffer seat 3 with a first sealing piece 13 installed is installed in the main valve body 1 from a second end of the main valve body 1, and the other end of the elastic piece 4 is sleeved on the raised column head 16 of the second buffer seat 3;
the second sealing element 14 is arranged in the second sealing groove, then one end of the adjusting rod 8 far away from the blind hole 19 is screwed into the positioning element 9, when one end of the adjusting rod 8 far away from the blind hole 19 stretches out of the positioning element 9, the clamping ring 15 is arranged in a clamping groove of the adjusting rod 8, and then the positioning element 9 is connected to the second end of the main valve body 1 in a threaded manner through the matching of the first positioning thread and the second positioning thread;
the second section of the adjusting rod 8 is sequentially connected with the locking sleeve 10 and the locking cap 11 in a screwed mode, the locking sleeve 10 is in contact with the positioning piece 9, the position of the positioning piece 9 is locked, the locking cap 11 is sleeved on the blind hole 19, the plug-in unit 12 is placed in the jack, the clamping piece 17 is placed in the clamping hole 18, when one end of the plug-in unit 12 stretches into the blind hole 19, one end, close to the plug-in unit 12, of the clamping piece 17 is inserted in the clamping groove, the whole structure is tightly connected, and structural assembly of the device is completed.
When the device is in a first state, the device overflows and regulates oil, the oil flows into a chute of the flow regulating seat 5 from the oil inlet 21, and pushes the flow regulating core 6, so that the flow regulating core 6 is far away from the flow regulating seat 5, the flow regulating core 6 pushes the first buffer seat 2 to be far away from the flow regulating seat 5, the oil flows into the main valve body 1 from the chute and flows out from the oil outlet 20, thereby forming a flow regulating passage, and the impact of high-pressure oil is buffered under the action of the inclined surface structure of the flow regulating core 6, the matching structure between the limiting body 7 and the limiting through hole and the elastic piece 4;
the thickness dimension range of the first buffer seat 2 is 2.5mm-3.5mm, so that the first buffer seat 2 can be ensured to stably move in the main valve body 1 towards the direction far away from the first end of the main valve body 1, the buffer effect of the flow regulating core 6 is improved, and the flow regulating core 6 is prevented from shaking.
The side wall of the second buffer seat 3, which is far away from the first buffer seat 2, is abutted against one end of the adjusting rod 8, which is close to the main valve body 1, so that the buffer stroke of the buffer assembly can be limited, and the first adjusting screw thread in the positioning piece 9 is matched with the third adjusting screw thread on the adjusting rod 8, so that the adjusting rod 8 can rotate, thereby changing the stroke of the adjusting rod 8 in the axial direction of the main valve body 1, enabling the second buffer seat 3 to move in the main valve body 1, and further changing the buffer stroke of the buffer assembly on high-pressure oil;
after the stroke of the adjusting rod 8 is adjusted, the locking sleeve 10 can fix the screwing-in position of the adjusting rod 8, the plug-in part 12 can be inserted into the jack of the locking cap 11, when one end of the plug-in part 12 close to the adjusting rod 8 is inserted into the blind hole 19, the clamping piece 17 stretches out from the clamping hole 18 to be inserted into the clamping groove, and the movement of the plug-in part 12 can be limited, so that the adjusting rod 8 is fixed in position, the condition that the adjusting rod 8 falls off is prevented, meanwhile, the locking cap 11 also plays a role in preventing collision with the adjusting rod 8, and the service life of the adjusting rod 8 is prolonged.
When the device is in the second state, the second buffer seat 3 is abutted with the adjusting rod 8 under the action of the elastic piece 4, the first buffer seat 2 is abutted with the flow regulating core 6, and two inclined plane side walls of the flow regulating core 6 are abutted with the edge walls of the sliding groove of the flow regulating seat 5, so that the flow regulating passage is cut off, and the device does not overflow.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.
Claims (6)
1. A low noise cartridge overflow valve for a hydraulic switch machine, comprising:
the main valve comprises a main valve body (1), wherein the main valve body (1) is hollow, the main valve body (1) is provided with a first end and a second end, a buffer assembly is arranged in the main valve body (1), and the buffer assembly and the main valve body (1) are coaxially arranged;
the flow regulating assembly is arranged at the first end and is abutted against one end of the buffer assembly;
the adjusting mechanism is arranged at the second end and comprises an adjusting rod (8), the adjusting rod (8) and the main valve body (1) are coaxially arranged, the adjusting rod (8) is close to one end of the main valve body (1) and the other end of the buffer component are in butt joint, one end of the adjusting rod (8) away from the main valve body (1) is provided with a locking component, and the locking component is used for limiting and locking the adjusting rod (8).
2. The low-noise plug-in overflow valve for the hydraulic switch machine according to claim 1, characterized in that a blind hole (19) is formed in one end, far away from the main valve body (1), of the adjusting rod (8), the locking assembly is provided with a locking cap (11), the locking cap (11) is provided with a groove, the groove is screwed on the blind hole (19), a jack is further formed in the locking cap (11), the jack and the adjusting rod (8) are coaxially arranged, the jack is communicated with the groove, an insert (12) is arranged in the jack, and one end, close to the main valve body (1), of the insert (12) is inserted into the blind hole (19);
the locking cap (11) is further provided with a clamping hole (18) perpendicular to the axis of the jack, the clamping hole (18) is communicated with the jack, a clamping piece (17) is arranged in the clamping hole (18), the plug-in piece (12) is provided with a clamping groove, and one end, close to the plug-in piece (12), of the clamping piece (17) is inserted into the clamping groove.
3. The low-noise plug-in overflow valve for the hydraulic switch machine according to claim 2, characterized in that the adjusting mechanism further comprises a positioning piece (9), the positioning piece (9) is screwed at the second end of the main valve body (1), and one end of the adjusting rod (8) close to the main valve body (1) is screwed in the positioning piece (9);
the locking assembly is further provided with a locking sleeve (10), the locking sleeve (10) is in threaded connection with the adjusting rod (8), and the locking sleeve (10) is located between the locating piece (9) and the locking cap (11).
4. A low noise cartridge overflow valve for a hydraulic switch machine according to claim 3, characterized in that the buffer assembly comprises a first buffer seat (2) and a second buffer seat (3), the first buffer seat (2) being arranged close to the first end of the main valve body (1), the second buffer seat (3) being arranged close to the second end of the main valve body (1), the opposite side walls of the first buffer seat (2) and the second buffer seat (3) being provided with protruding studs (16);
the buffer assembly further comprises an elastic piece (4), and two ends of the elastic piece (4) are respectively sleeved on the two protruding column heads (16).
5. The low-noise plug-in overflow valve for the hydraulic switch machine according to claim 4, wherein the flow regulating assembly comprises a flow regulating seat (5), a sliding groove is formed in the flow regulating seat (5), the flow regulating assembly further comprises a flow regulating core (6), the flow regulating core (6) is positioned between the first buffer seat (2) and the flow regulating seat (5), and one end, close to the flow regulating seat (5), of the flow regulating core (6) is arranged in the sliding groove in a sliding manner;
the flow regulating core (6) is abutted to the first buffer seat (2), a limiting body (7) is arranged on the side wall, close to the first buffer seat (2), of the flow regulating core (6), a limiting through hole is formed in the first buffer seat (2), and the limiting body (7) is inserted into the limiting through hole.
6. The low-noise plug-in overflow valve for the hydraulic switch machine according to claim 5, wherein an oil outlet (20) is formed in the side wall, close to the first end, of the main valve body (1), the oil outlet (20) is communicated with the inside of the main valve body (1), an oil inlet (21) is formed in the flow regulating seat (5), and the sliding groove is communicated with the oil inlet (21);
a first sealing groove is formed in the second buffer seat (3), a first sealing piece (13) is arranged in the first sealing groove, a second sealing groove is formed in the second end of the main valve body (1), and a second sealing piece (14) is arranged in the second sealing groove;
one end of the adjusting rod (8) close to the main valve body (1) is provided with a clamping groove, and a clamping ring (15) is arranged in the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221723466.0U CN219570470U (en) | 2022-07-06 | 2022-07-06 | Low-noise plug-in type overflow valve for hydraulic switch machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221723466.0U CN219570470U (en) | 2022-07-06 | 2022-07-06 | Low-noise plug-in type overflow valve for hydraulic switch machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570470U true CN219570470U (en) | 2023-08-22 |
Family
ID=87658018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221723466.0U Active CN219570470U (en) | 2022-07-06 | 2022-07-06 | Low-noise plug-in type overflow valve for hydraulic switch machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570470U (en) |
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2022
- 2022-07-06 CN CN202221723466.0U patent/CN219570470U/en active Active
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