A marine oil pressure valve pair with stable oil injection

Abstract

The present invention relates to the technical field of diesel engine accessories, and in particular to a marine oil pressure valve pair with stable fuel injection, comprising an oil pressure valve body whose axis is provided with an axial center hole, an oil pressure valve column installed in the axial center hole of the oil pressure valve body, a valve body cone surface also provided on the oil pressure valve body, the oil pressure valve column and the oil pressure valve body cone surface are fitted together, and multiple backflow blocking mechanisms and oil filtering and cleaning mechanisms are sequentially installed inside the oil pressure valve column, the multiple backflow blocking mechanisms are used for multiple sealing blocking of the liquid inlet end of the oil pressure valve column, and the oil filtering and cleaning mechanism is used for filtering oil. The present application can improve the oil backflow effect, and at the same time filter the oil to improve the stability of oil use.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine accessories, in particular to a marine oil pressure valve pair with stable oil injection. Background Art

[0002] The fuel injection pump is the core component of the diesel engine. Its main function is to supply high-pressure diesel to the injector according to a certain rule to obtain good spray quality. The oil pressure valve is a pair of precision parts in the fuel injection pump, which directly controls the opening and closing of the fuel. Its main function is to supply high-pressure diesel to the injector according to a certain rule to obtain good spray quality.

[0003] For example, Chinese invention patent CN102979653B discloses a marine oil pressure valve pair, including an oil pressure valve pair body, an oil pressure valve pair column, the oil pressure valve pair body is formed with an axial center hole, the oil pressure valve pair column is movably inserted in the axial center hole, and the two can slide up and down relatively to cooperate, and a high-pressure oil pipe is opened on the oil pressure valve pair column, wherein a valve body cone surface is formed on the oil pressure valve pair body, and a valve column cone surface is formed on the oil pressure valve pair column, the valve body cone surface and the valve column cone surface are sealed and pressed, a valve column inner cavity is provided in the oil pressure valve pair column, a valve body through hole passes through the upper part of the valve column inner cavity, a spring is fixed in the oil pressure valve pair body, and the spring is located in the valve column inner cavity, a sealing ball is connected to the upper end of the spring, and the sealing ball presses on the inner cone surface of the valve body through hole under the pressure of the spring, and the sealing ball and the inner cone surface are sealed and cooperated. This technical solution uses an oil backflow prevention device to save fuel and increase diesel injection force, thereby improving the working stability of the oil pressure valve pair. However, long-term use of the spring will cause the elastic force to weaken, which will affect the oil backflow prevention effect. At the same time, the presence of certain impurities in the oil will affect the stability of the diesel engine. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The present invention is aimed at the above-mentioned defects existing in the prior art, and specially proposes a marine oil pressure valve pair with stable oil injection, which solves the problem that the elastic force of the existing products will be weakened after long-term use, affecting the effect of preventing oil backflow, and at the same time solves the problem that the oil pressure valve pair has a poor oil filtering effect.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the present invention provides a marine oil pressure valve pair with stable oil injection, comprising an oil pressure valve body having an axial center hole, an oil pressure valve column installed in the axial center hole of the oil pressure valve body, a valve body cone surface also provided on the oil pressure valve body, the oil pressure valve column and the oil pressure valve body cone surface are fitted, and multiple backflow blocking mechanisms and oil filtering and cleaning mechanisms are sequentially installed inside the oil pressure valve column, the multiple backflow blocking mechanisms are used for multiple sealing blocking of the liquid inlet end of the oil pressure valve column, and the oil filtering and cleaning mechanism is used for filtering oil;

[0008] A first valve post conical surface is provided on the outer side of the oil pressure valve post, an oil inlet circulation hole is provided on the oil pressure valve post, an oil outlet circulation port is provided at one end of the oil pressure valve post away from the oil inlet circulation hole, a first circulation chamber and a second circulation chamber which are interconnected are provided inside the oil pressure valve post, a dividing groove is provided between the first circulation chamber and the second circulation chamber, a first limit groove is provided on the side wall of the oil outlet circulation port, and a first limit clamping ring is installed in the first limit groove.

[0009] Preferably, the first circulation chamber is communicated with the oil inlet circulation hole, and a second valve stem conical surface and a third valve stem conical surface are provided in the first circulation chamber.

[0010] Preferably, an outer wall of the second flow chamber is provided with an open groove, an opening surface of the open groove is provided with a first inclined pressing surface, a disassembly block is installed in the open groove, a side of the disassembly block is provided with a second inclined pressing surface, and the disassembly block and the open groove fit together.

[0011] Preferably, the multiple backflow blocking mechanism includes a spring pressure regulating seat installed in the first flow chamber, a ball mounting seat is installed inside the spring pressure regulating seat, a blocking ball is installed on the ball mounting seat, the blocking ball is in contact with the conical surface of the second valve column of the first flow chamber, and a push spring is provided between the ball mounting seat and the spring pressure regulating seat.

[0012] Preferably, a ball mounting groove is provided on the top of the ball mounting seat, a second conical pressing surface is provided on the side of the ball mounting seat, the second conical pressing surface abuts against the third valve column conical surface of the first flow chamber, and a first positioning protrusion is provided on the bottom of the ball mounting seat.

[0013] Preferably, an installation cavity is provided inside the spring pressure regulating seat, a spring pressure block is provided in the installation cavity, a second positioning protrusion is provided on the spring pressure block, a plurality of second limiting grooves are provided on the inner wall of the installation cavity, a second limiting ring is installed in the second limiting groove, and a plurality of second flow holes are provided on the outer wall of the spring pressure regulating seat.

[0014] Preferably, the oil filtering and cleaning mechanism includes a first mounting seat dockedly mounted on the spring pressure regulating seat, the first mounting seat is provided with a first mounting hole, a transmission shaft is installed on the first mounting hole, the transmission shaft passes through a spiral cleaning ring, a filter element mounting frame and a driving ring in sequence, a second mounting seat is provided at the end of the transmission shaft away from the first mounting seat, the second mounting seat is provided with a second mounting hole, the second mounting hole is rotatably connected to the transmission shaft, and a first annular filter element and a second annular filter element are installed on the filter element mounting frame.

[0015] Preferably, a first clamping protrusion is provided on the outer side of the transmission shaft, and a plurality of first clamping grooves are further provided on the outer side of one end of the transmission shaft away from the first clamping protrusion.

[0016] Preferably, a pressure-resistant circulation block is provided at the axial position of the filter element mounting frame, a plurality of liquid outlet holes are provided on the pressure-resistant circulation block, an annular placement frame is provided on the outer side of the pressure-resistant circulation block, a plurality of mounting slots are provided on the annular placement frame, a focusing slope is also provided on the bottom of the filter element mounting frame, a filter element pressing bracket for pressing and fixing the filter element is also installed on the filter element mounting frame, a plurality of limiting rods installed in the mounting slots are provided on the filter element pressing bracket, a first annular pressing bracket which contacts the pressure-resistant circulation block is installed on the limiting rod, and a second annular pressing bracket which contacts the annular placement frame is also installed on the limiting rod.

[0017] Preferably, the spiral cleaning ring includes a first position limiting mounting sleeve installed on the transmission shaft, a plurality of second clamping grooves are provided at the axial center position of the first position limiting mounting sleeve, the second clamping grooves are clamped with the first clamping protrusions of the transmission shaft, and a plurality of spiral strips are provided on the outer side of the first position limiting mounting sleeve.

[0018] Preferably, the drive ring includes a second position limiting mounting sleeve installed on the transmission shaft, a plurality of second snap-in protrusions are provided at the axial center position of the second position limiting mounting sleeve, the second snap-in protrusions are snap-engaged with the first snap-in grooves of the transmission shaft, and a guide vane is installed on the outer side of the second position limiting mounting sleeve.

[0019] 3. Beneficial Effects

[0020] Compared with the prior art, in the oil pressure valve pair of the present invention, when the oil pressure in the pump chamber is greater than the elastic force of the push spring, the oil will push the blocking ball and the ball mounting seat to shrink and move along the spring pressure regulating seat, so that the oil enters the interior of the oil pressure valve column, and the entered oil will sequentially pass through the first flow chamber and the second flow chamber and be sprayed out from the oil outlet. When the oil pressure in the pump chamber is less than the elastic force of the push spring, the push spring will push the blocking ball to contact the conical surface of the second valve column to seal, and at the same time push the ball mounting seat to contact the conical surface of the third valve column to perform secondary sealing, thereby achieving Multiple sealing blockages are performed. The installation cavity in the spring pressure regulating seat is used for limiting the installation of the ball mounting seat and the push spring. The long-term pushing and resetting use of the push spring will cause the push spring to relax, affecting the sealing effect and failing to obtain a good thrust. When maintenance is required, the staff can adjust the second limit clamping ring to the designated second limit clamping groove to displace the spring pressure block. The change in the position of the spring pressure block will cause the extrusion force of the push spring to change accordingly, thereby restoring the pushing force of the push spring and effectively ensuring the sealing effect.

[0021] When the oil pressure in the pump chamber is greater than the elastic force of the push spring, the oil will push the blocking ball and the ball mounting seat to shrink and move along the spring pressure regulating seat, so that the oil enters the interior of the oil pressure valve column. The entered oil will pass through the first circulation chamber and the second circulation chamber in turn and be sprayed from the oil outlet. When the oil enters the second circulation chamber, the oil will pass through the spiral cleaning ring, the first annular filter element, the second annular filter element and the driving ring in turn and then be sprayed from the oil outlet. When the oil passes through the first annular filter element and the second annular filter element, the first annular filter element and the second annular filter element can effectively filter impurities. When the circulating oil passes through the driving ring, the driving ring can effectively convert kinetic energy to rotate the transmission shaft. When the transmission shaft rotates, it drives the spiral cleaning ring to rotate synchronously. When the spiral cleaning ring rotates, it will clean the first annular filter element to avoid accumulation of impurities on the first annular filter element, so that the impurities flow to the second annular filter element to avoid blockage. The first annular filter element and the second annular filter element can be used for filtering to effectively ensure the smoothness of the oil injection and the quality of the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a plane cross-sectional view of a pair of marine oil pressure valves with stable oil injection;

[0023] Figure 2 It is a three-dimensional cross-sectional view of a marine oil pressure valve pair with stable oil injection, an oil pressure valve column, a multiple backflow blocking mechanism and an oil filtering and cleaning mechanism;

[0024] Figure 3 It is a plane cross-sectional view of a marine oil pressure valve pair with stable oil injection and an oil pressure valve column;

[0025] Figure 4 It is an exploded view of a marine oil pressure valve pair with stable oil injection, an oil pressure valve column, a multiple backflow blocking mechanism and an oil filtering and cleaning mechanism;

[0026] Figure 5 This is a front view of a multiple backflow blocking mechanism for a marine oil pressure valve pair with stable oil injection;

[0027] Figure 6 yes Figure 5 Sectional view at the middle BB section;

[0028] Figure 7 This is a main view of the oil filtering and cleaning mechanism of a marine oil pressure valve pair with stable oil injection;

[0029] Figure 8 yes Figure 7 Sectional view at the CC section;

[0030] Fig. 9 This is an exploded view of the oil filtering and cleaning mechanism in a marine oil pressure valve pair with stable oil injection.

[0031] Fig.10 It is a three-dimensional schematic diagram of a transmission shaft in a marine oil pressure valve pair with stable oil injection;

[0032] Fig.11 It is a three-dimensional schematic diagram of a filter element mounting frame in a marine oil pressure valve pair with stable oil injection;

[0033] Fig.12 It is a three-dimensional schematic diagram of a spiral cleaning ring in a marine oil pressure valve pair with stable oil injection;

[0034] Fig.13 The present invention is a three-dimensional schematic diagram of a driving ring in a marine oil pressure valve pair with stable oil injection.

[0035] In the figure:

[0036] 1 is the oil pressure valve body;

[0037] 2 is the oil pressure valve column;

[0038] 21 is the first valve stem conical surface; 22 is the oil inlet flow hole; 23 is the first flow chamber; 231 is the second valve stem conical surface; 232 is the third valve stem conical surface; 24 is the second flow chamber; 241 is the opening groove; 242 is the disassembly block; 25 is the dividing groove; 26 is the oil outlet flow port; 27 is the first limit clamping groove; 28 is the first limit clamping ring;

[0039] 3 is a multiple backflow blocking mechanism;

[0040] 31 is a blocking ball; 32 is a ball mounting seat; 321 is a ball mounting groove; 322 is a second conical pressing surface; 323 is a first positioning convex block; 33 is a spring pressure regulating seat; 331 is a second flow hole; 332 is a second limiting groove; 333 is a second limiting snap ring; 334 is a spring pressing block; 335 is a second positioning convex block; 34 is a push spring;

[0041] 4 is an oil filtering and cleaning mechanism;

[0042] 41 is the first mounting seat; 42 is the transmission shaft; 421 is the first snap-fitting protrusion; 422 is the first snap-fitting groove; 43 is the filter element mounting frame; 431 is the pressure-resistant circulation block; 4311 is the liquid outlet through hole; 432 is the annular placement frame; 4321 is the mounting slot; 433 is the focusing slope; 434 is the filter element pressing bracket; 4341 is the limiting plug rod; 4342 is the first annular pressing frame; 4343 is the second annular pressing frame; 44 is the first annular filter element; 45 is the second annular filter element; 46 is the spiral cleaning ring; 461 is the first limiting mounting sleeve; 4611 is the second snap-fitting groove; 462 is the spiral strip; 47 is the driving ring; 471 is the second limiting mounting sleeve; 4711 is the second snap-fitting protrusion; 472 is the guide vane; 48 is the second mounting seat. DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] Embodiment 1:

[0045] like Figures 1 to 13 As shown, the marine oil pressure valve pair with stable oil injection in this embodiment includes an oil pressure valve body 1 whose axis is provided with an axial center hole, an oil pressure valve column 2 is installed in the axial center hole of the oil pressure valve body 1, and a valve body cone surface is also provided on the oil pressure valve body 1. The oil pressure valve column 2 fits with the valve body cone surface of the oil pressure valve body 1, and multiple backflow blocking mechanisms 3 and oil filtering and cleaning mechanisms 4 are installed in the oil pressure valve column 2 in sequence. The multiple backflow blocking mechanisms 3 are used for multiple sealing blocking of the liquid inlet end of the oil pressure valve body 1, and the oil filtering and cleaning mechanisms 4 are used for filtering oil.

[0046] The pump chamber is connected with the liquid inlet end of the oil pressure valve column 2. When the oil pressure in the pump chamber is greater than the blocking push of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will shrink toward the inside of the oil pressure valve column 2, and the oil inside the pump chamber enters the inside from the liquid inlet end of the oil pressure valve column 2. The entered oil will quickly pass through the oil filtering and cleaning mechanism 4 and then be sprayed out from the liquid outlet end of the oil pressure valve column 2. When the oil is filtered and cleaned by the cleaning mechanism, the filtering and cleaning mechanism will filter the oil to keep the oil pure and free of impurities, effectively improving the stability of the sprayed oil during use. When the oil pressure in the pump chamber is less than the blocking thrust of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will reset, and the multiple backflow blocking mechanism 3 will block the liquid inlet end of the oil pressure valve column 2 to avoid oil backflow.

[0047] like Figure 2 and Figure 3 As shown, a first valve stem conical surface 21 is provided on the outer side of the oil pressure valve stem 2, an oil inlet flow hole 22 is provided on the oil pressure valve stem 2, an oil outlet flow port 26 is provided at one end of the oil pressure valve stem 2 away from the oil inlet flow hole 22, a first flow chamber 23 and a second flow chamber 24 which are interconnected are provided inside the oil pressure valve stem 2, a dividing groove 25 is provided between the first flow chamber 23 and the second flow chamber 24, a first limit groove 27 is provided on the side wall of the oil outlet flow port 26, and a first limit retaining ring 28 is installed in the first limit groove 27.

[0048] The oil pressure valve column 2 is installed in the axial hole of the oil pressure valve body 1. The first valve column conical surface 21 is used to abut against the valve body conical surface, which is convenient for the oil pressure valve column 2 to be inserted in a limited position. The oil flow hole of the oil pressure valve column 2 is used to connect the pump chamber. The first flow chamber 23 inside the oil pressure valve column 2 is used to install the multiple backflow blocking mechanism 3. The second flow chamber 24 inside the oil pressure valve column 2 is used to install the oil filter cleaning mechanism 4. A dividing groove 25 is provided between the first flow chamber 23 and the second flow chamber 24 for limiting the installation of the oil filter cleaning mechanism 4. The multiple backflow blocking mechanism 3 and the oil filter cleaning mechanism 4 are sequentially connected. After the structure 4 is installed inside the oil pressure valve column 2, the assembler can clamp the first limit clamping ring 28 into the first limit clamping groove 27 to clamp and fix the multiple backflow blocking mechanism 3 and the oil filtering and cleaning mechanism 4. When the oil pressure in the pump chamber is greater than the blocking push of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will shrink toward the inside of the oil pressure valve column 2, and the oil inside the pump chamber will enter the inside of the oil pressure valve column 2 from the oil inlet circulation hole 22 of the oil pressure valve column 2, and the entered oil will pass through the first circulation chamber 23 and the second circulation chamber 24 in turn and spray out from the oil outlet circulation port 26.

[0049] like Figure 3 As shown, the first circulation chamber 23 is communicated with the oil inlet circulation hole 22 , and a second valve stem conical surface 231 and a third valve stem conical surface 232 are provided in the first circulation chamber 23 .

[0050] The first flow chamber 23 is provided with a second valve stem cone and a third valve stem cone surface 232 for cooperating with the multiple backflow blocking mechanism 3 for sealing.

[0051] An outer wall of the second flow chamber 24 is provided with an opening groove 241 , an opening surface of the opening groove 241 is provided with a first inclined pressing surface, a disassembly block 242 is installed in the opening groove 241 , a side portion of the disassembly block 242 is provided with a second inclined pressing surface, and the disassembly block 242 and the opening groove 241 fit together.

[0052] When the oil pressure in the pump chamber is greater than the blocking push of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will shrink toward the inside of the oil pressure valve column 2, and the oil inside the pump chamber enters the inside of the oil pressure valve column 2 from the oil inlet circulation hole 22 of the oil pressure valve column 2, and the entered oil will pass through the first circulation chamber 23 and the second circulation chamber 24 in turn and be sprayed out from the oil outlet circulation port 26. When the oil passes through the oil filter cleaning mechanism 4 in the second circulation chamber 24, the oil filter cleaning mechanism 4 will filter and collect impurities in the oil. The oil filter cleaning mechanism 4 will filter and collect impurities in the oil for a long time if it filters the oil. In order to avoid blockage, the staff needs to regularly remove the oil pressure valve column 2 from the oil pressure valve body 1, and open the disassembly block 242 on the side of the second circulation chamber 24 to open the opening groove 241 of the first inclined pressure surface. The staff can quickly contact the oil filter cleaning mechanism 4 through the opening groove 241, and quickly clean the impurities on the oil filter cleaning mechanism 4 by flushing.

[0053] like Figure 5 and 6 As shown, the multiple backflow blocking mechanism 3 includes a spring pressure regulating seat 33 installed in the first circulation chamber 23, a ball mounting seat 32 is installed inside the spring pressure regulating seat 33, a blocking ball 31 is installed on the ball mounting seat 32, the blocking ball 31 is in contact with the second valve column conical surface 231 of the first circulation chamber 23, and a push spring 34 is provided between the ball mounting seat 32 and the spring pressure regulating seat 33.

[0054] When the oil pressure in the pump chamber is greater than the elastic force of the push spring 34, the oil will push the blocking ball 31 and the ball mounting seat 32 to shrink and move along the spring pressure regulating seat 33, so that the oil enters the interior of the oil pressure valve column 2. The entered oil will pass through the first flow chamber 23 and the second flow chamber 24 in turn and be ejected from the oil outlet port 26. When the oil pressure in the pump chamber is less than the elastic force of the push spring 34, the push spring 34 will push the blocking ball 31 to contact the conical surface 231 of the second valve column for sealing, and at the same time push the ball mounting seat 32 to contact the conical surface 232 of the third valve column for secondary sealing, thereby effectively implementing multiple sealing blockages.

[0055] A ball mounting groove 321 is provided at the top of the ball mounting seat 32 , a second conical pressing surface 322 is provided at the side of the ball mounting seat 32 , and the second conical pressing surface 322 abuts against the third valve column conical surface 232 of the first flow chamber 23 , and a first positioning protrusion 323 is provided at the bottom of the ball mounting seat 32 .

[0056] The ball installation groove 321 of the ball installation seat 32 is used to limit the installation of the blocking ball 31, and the second conical pressing surface 322 on the ball installation seat 32 is used to resist the third valve column conical surface 232 to achieve a tight layer. The first positioning protrusion 323 of the ball installation seat 32 is used to limit the installation position of the push spring 34.

[0057] A mounting cavity is provided inside the spring pressure regulating seat 33, and a spring pressing block 334 is provided in the mounting cavity. A second positioning protrusion 335 is provided on the spring pressing block 334, and a plurality of second limiting grooves 332 are provided on the inner wall of the mounting cavity. A second limiting snap ring 333 is installed in the second limiting groove 332, and a plurality of second flow holes 331 are provided on the outer wall of the spring pressure regulating seat 33.

[0058] The second flow hole 331 on the side wall of the spring pressure regulating seat 33 is convenient for the circulation of oil. The installation cavity in the spring pressure regulating seat 33 is used for limiting the installation of the ball mounting seat 32 and the push spring 34. The push spring 34 will become loose after long-term pushing and resetting use, affecting the sealing effect and failing to obtain a good thrust. When maintenance is required, the staff can adjust the second limit clamping ring 333 to connect it to the designated second limit clamping groove 332 to displace the spring pressure block 334. The change in the position of the spring pressure block 334 will cause the extrusion force of the push spring 34 to change accordingly, thereby restoring the pushing force of the push spring 34 and effectively ensuring the sealing effect.

[0059] like Figures 7 to 9 As shown, the oil filtering and cleaning mechanism 4 includes a first mounting seat 41 docked and mounted on the spring pressure regulating seat 33, a first mounting hole is provided on the first mounting seat 41, a transmission shaft 42 is installed on the first mounting hole, the transmission shaft 42 passes through a spiral cleaning ring 46, a filter element mounting frame 43 and a driving ring 47 in sequence, a second mounting seat 48 is provided at the end of the transmission shaft 42 away from the first mounting seat 41, a second mounting seat 48 is provided with a second mounting hole, the second mounting hole is rotatably connected to the transmission shaft 42, and a first annular filter element 44 and a second annular filter element 45 are installed on the filter element mounting frame 43.

[0060] The first mounting seat 41 and the second mounting seat 48 cooperate to limit the position of the transmission shaft 42, and the filter element mounting frame 43 is used to position and install the first annular filter element 44 and the second annular filter element 45. When the oil pressure in the pump chamber is greater than the elastic force of the push spring 34, the oil will push the blocking ball 31 and the ball mounting seat 32 to shrink and move along the spring pressure regulating seat 33, so that the oil enters the interior of the oil pressure valve column 2. The entered oil will pass through the first circulation chamber 23 and the second circulation chamber 24 in turn and be sprayed out from the oil outlet circulation port 26. When the oil enters the second circulation chamber 24, the oil will pass through the spiral cleaning ring 46, the first annular filter element 44 and the first annular filter element 45 in turn. The second annular filter element 45 and the drive ring 47 are then sprayed out from the oil outlet 26. When the oil passes through the first annular filter element 44 and the second annular filter element 45, the first annular filter element 44 and the second annular filter element 45 can effectively filter impurities. When the circulating oil passes through the drive ring 47, the drive ring 47 can effectively convert kinetic energy to rotate the transmission shaft 42. When the transmission shaft 42 rotates, it drives the spiral cleaning ring 46 to rotate synchronously. When the spiral cleaning ring 46 rotates, it will clean the first annular filter element 44 to avoid the accumulation of impurities on the first annular filter element 44, so that the impurities flow to the second annular filter element 45 to avoid blockage. The first annular filter element 44 and the second annular filter element 45 cooperate to filter and effectively ensure the smoothness of the oil injection, while ensuring the quality of the oil.

[0061] like Fig. 9 and Fig.10 As shown:

[0062] A first clamping protrusion 421 is disposed on the outer side of the transmission shaft 42 , and a plurality of first clamping grooves 422 are disposed on the outer side of one end of the transmission shaft 42 away from the first clamping protrusion 421 .

[0063] The first engaging protrusion 421 of the transmission shaft 42 is used to engage and fix the spiral cleaning ring 46 , and the first engaging groove 422 on the transmission shaft 42 is used to engage and fix the driving ring 47 . When the driving ring 47 rotates, the transmission shaft 42 can effectively drive the spiral cleaning ring 46 to rotate synchronously.

[0064] like Fig. 9 and Fig.11 As shown:

[0065] A pressure-resistant circulation block 431 is provided at the axial position of the filter element mounting frame 43, and a plurality of liquid outlet holes 4311 are provided on the pressure-resistant circulation block 431. An annular placement frame 432 is provided on the outer side of the pressure-resistant circulation block 431, and a plurality of mounting slots 4321 are provided on the annular placement frame 432. A focusing slope 433 is also provided at the bottom of the filter element mounting frame 43. A filter element pressing bracket 434 for pressing and fixing the filter element is also installed on the filter element mounting frame 43. The filter element pressing bracket 434 is provided with a plurality of limiting rods 4341 installed in the mounting slots 4321. A first annular pressing bracket 4342 that contacts the pressure-resistant circulation block 431 is installed on the limiting rod 4341, and a second annular pressing bracket 4343 that contacts the annular placement frame 432 is also installed on the limiting rod 4341.

[0066] When the first annular filter element 44 and the second annular filter element 45 need to be installed, the staff places the first annular filter element 44 on the pressure-resistant circulation block 431, and then places the second annular filter element 45 on the annular placement frame 432. After the placement is completed, the staff then uses the limiting plug rod 4341 on the filter element pressing bracket 434 to enter and exit the installation groove 4321, so that the filter element pressing bracket 434 slides along the installation groove 4321, and the first annular pressing frame 4342 of the filter element pressing bracket 434 is used to press and fix the first annular filter element 44, and the second annular pressing frame 4343 is used to press and fix the second annular filter element 45, so that the first annular The filter element 44 and the second annular filter element 45 are positioned. When the oil passes through the filter element mounting frame 43, the converging slope 433 on the filter element mounting frame 43 will guide the oil to flow toward the driving ring 47. The filter element mounting frame 43 can effectively limit the installation of the first annular filter element 44 and the second annular filter element 45 through the filter element mounting frame 43. When the oil circulates, it will pass through the first annular filter element 44 in a concentrated manner. The pressure-resistant circulation block 431 can effectively increase the pressure resistance of the first annular filter element 44. The liquid outlet through hole 4311 on the pressure-resistant circulation block 431 is used to circulate the oil, which effectively avoids damage to the first annular filter element 44 caused by excessive oil pressure.

[0067] In this embodiment, the pump chamber is connected to the liquid inlet end of the oil pressure valve column 2. When the oil pressure in the pump chamber is greater than the blocking push of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will shrink toward the inside of the oil pressure valve column 2, and the oil inside the pump chamber enters the interior from the liquid inlet end of the oil pressure valve column 2. The entered oil will quickly pass through the oil filtering and cleaning mechanism 4 and then be sprayed out from the liquid outlet end of the oil pressure valve column 2. When the oil is filtered and cleaned by the filtering and cleaning mechanism, the filtering and cleaning mechanism will filter the oil to keep the oil pure and free of impurities, effectively improving the stability of the sprayed oil during use. When the oil pressure in the pump chamber is less than the blocking thrust of the multiple backflow blocking mechanism 3, the multiple backflow blocking mechanism 3 will reset, and the multiple backflow blocking mechanism 3 will block the liquid inlet end of the oil pressure valve column 2 to avoid oil backflow.

[0068] Embodiment 2:

[0069] like Fig. 9 and Fig.12 As shown, on the basis of Example 1, the spiral cleaning ring 46 includes a first position limiting mounting sleeve 461 installed on the transmission shaft 42, and a plurality of second clamping grooves 4611 are provided at the axial position of the first position limiting mounting sleeve 461, and the second clamping grooves 4611 are clamped with the first clamping protrusions 421 of the transmission shaft 42, and a plurality of spiral strips 462 are provided on the outer side of the first position limiting mounting sleeve 461.

[0070] When the oil passes through the drive ring 47, the drive ring 47 will drive the transmission shaft 42 to rotate synchronously. When the transmission shaft 42 rotates, it will drive the first limit mounting sleeve 461 to rotate. When the first limit mounting sleeve 461 rotates, it will drive the spiral bar 462 to rotate. When the spiral bar 462 rotates, it will rotate and clean the first annular filter element 44, effectively preventing impurities from remaining on the first annular filter element 44.

[0071] like Fig. 9 and Fig.13 As shown: the driving ring 47 includes a second limiting mounting sleeve 471 installed on the transmission shaft 42, and a plurality of second clamping protrusions 4711 are provided at the axial position of the second limiting mounting sleeve 471, and the second clamping protrusions 4711 are clamped with the first clamping grooves 422 of the transmission shaft 42, and a guide blade 472 is installed on the outer side of the second limiting mounting sleeve 471.

[0072] When the oil passes through the guide vane 472, the guide vane 472 will be guided by the oil to rotate. When the guide vane 472 rotates, it drives the second limit mounting sleeve 471 to rotate synchronously. When the second limit mounting sleeve 471 rotates, it drives the transmission shaft 42 to rotate, effectively converting kinetic energy for reasonable utilization.

[0073] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A marine oil pressure valve pair with stable oil injection, characterized in that: The oil injection stable marine oil pressure valve pair comprises an oil pressure valve body, the axis of the oil pressure valve body is provided with an axis hole, an oil pressure valve column is installed in the axis hole of the oil pressure valve body, the oil pressure valve body is also provided with a valve body cone surface, the oil pressure valve column is fitted with the valve body cone surface of the oil pressure valve body, and multiple backflow blocking mechanisms and oil filtering and cleaning mechanisms are sequentially installed inside the oil pressure valve column, the multiple backflow blocking mechanisms are used for multiple sealing blocking of the liquid inlet end of the oil pressure valve column, and the oil filtering and cleaning mechanism is used for filtering oil; A first valve stem conical surface is provided on the outer side of the oil pressure valve stem, an oil inlet flow hole is provided on the oil pressure valve stem, an oil outlet flow port is provided at one end of the oil pressure valve stem away from the oil inlet flow hole, a first flow chamber and a second flow chamber are provided inside the oil pressure valve stem, which are interconnected, a dividing groove is provided between the first flow chamber and the second flow chamber, a first limit clamping groove is provided on the side wall of the oil outlet flow port, and a first limit clamping ring is installed in the first limit clamping groove; The first flow chamber is communicated with the oil inlet flow hole, and a second valve stem conical surface and a third valve stem conical surface are provided in the first flow chamber; The multiple backflow blocking mechanism comprises a spring pressure regulating seat installed in the first flow chamber, a ball mounting seat is installed inside the spring pressure regulating seat, a blocking ball is installed on the ball mounting seat, the blocking ball abuts against the conical surface of the second valve column of the first flow chamber, and a push spring is provided between the ball mounting seat and the spring pressure regulating seat; A ball mounting groove is provided on the top of the ball mounting seat, a second conical pressing surface is provided on the side of the ball mounting seat, the second conical pressing surface abuts against the conical surface of the third valve column of the first flow chamber, and a first positioning protrusion is provided on the bottom of the ball mounting seat; The spring pressure regulating seat is provided with an installation cavity inside, the installation cavity is provided with a spring pressing block, the spring pressing block is provided with a second positioning protrusion, the inner wall of the installation cavity is provided with a plurality of second limit slots, a second limit snap ring is installed in the second limit slot, and the outer wall of the spring pressure regulating seat is provided with a plurality of second flow holes; The oil filtering and cleaning mechanism includes a first mounting seat dockedly mounted on the spring pressure regulating seat, the first mounting seat is provided with a first mounting hole, a transmission shaft is installed on the first mounting hole, the transmission shaft passes through a spiral cleaning ring, a filter element mounting frame and a driving ring in sequence, a second mounting seat is provided at the end of the transmission shaft away from the first mounting seat, the second mounting seat is provided with a second mounting hole, the second mounting hole is rotatably connected to the transmission shaft, and a first annular filter element and a second annular filter element are installed on the filter element mounting frame.

2. A marine oil pressure valve assembly with stable oil injection according to claim 1, characterized in that: An outer wall of the second flow chamber is provided with an open groove, an opening surface of the open groove is provided with a first inclined pressing surface, a disassembly block is installed in the open groove, a side of the disassembly block is provided with a second inclined pressing surface, and the disassembly block and the open groove fit each other.

3. A marine oil pressure valve assembly with stable oil injection according to claim 1, characterized in that: A first clamping protrusion is arranged on the outer side of the transmission shaft, and a plurality of first clamping grooves are arranged on the outer side of one end of the transmission shaft away from the first clamping protrusion.

4. A marine oil pressure valve assembly with stable oil injection according to claim 3, characterized in that: A pressure-resistant circulation block is provided at the axial position of the filter element mounting frame, a plurality of liquid outlet holes are provided on the pressure-resistant circulation block, an annular placement frame is provided on the outer side of the pressure-resistant circulation block, a plurality of mounting slots are provided on the annular placement frame, a focusing slope is also provided on the bottom of the filter element mounting frame, a filter element pressing bracket for pressing and fixing the filter element is also installed on the filter element mounting frame, a plurality of limiting plugs installed in the mounting slots are provided on the filter element pressing bracket, a first annular pressing bracket which contacts the pressure-resistant circulation block is installed on the limiting plug, and a second annular pressing bracket which contacts the annular placement frame is also installed on the limiting plug.

5. A marine oil pressure valve assembly with stable oil injection according to claim 4, characterized in that: The spiral cleaning ring includes a first limiting mounting sleeve installed on the transmission shaft. The first limiting mounting sleeve is provided with a plurality of second clamping grooves at the axial center position. The second clamping grooves are clamped with the first clamping protrusions of the transmission shaft. The outer side of the first limiting mounting sleeve is provided with a plurality of spiral strips.

6. A marine oil pressure valve assembly with stable oil injection according to claim 5, characterized in that: The drive ring includes a second limit mounting sleeve installed on the transmission shaft. A plurality of second clamping protrusions are provided at the axial center position of the second limit mounting sleeve. The second clamping protrusions are clamped with the first clamping grooves of the transmission shaft. A guide vane is installed on the outer side of the second limit mounting sleeve.

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