TW201506249A - Safety liquid pressurizing pump - Google Patents

Abstract

Disclosed is a safety liquid pressurizing pump. In the pressurizing process of the liquid, multiple first gaps of the first isolation ring are utilized to convert a small amount of high pressure liquid infiltrating through the first plug sleeve into low pressure liquid for reflow. Because the second sealing rubber ring merely endures the force of the low pressure liquid and is provided with a long-lasting tightness, the effective hours for the pressurizing work of the piston liquid can be significantly prolonged. Moreover, even under a circumstance that the piston cap is not properly replaced after the expiration date, the multiple second gaps of the second isolation ring can receive the oil stain oozed from a core hole end, and/or receive and exhaust the liquid infiltrating into the liquid pressurizing chamber. Therefore, the operation of the power output shaft assembly can be maintained in a condition of normal lubrication and the pressurized liquid can be ensured not to be contaminated by the oil stain.

Description

Safe liquid pressurized pump

The invention relates to a pressurization work of a liquid, which can significantly prolong the effective hours, and can maintain the normal lubrication operation of the output shaft group and ensure the liquid is not polluted by the safe liquid pressure pump even if the maintenance condition is overdue. .

According to the invention of the patent No. I394893 "Beneng type liquid pressure pump", the former invention of this case is mainly through the left and right core holes of one end of the two diagonal lines, respectively, through a linkage piece The interlocking and interlocking movements have resulted in the miniaturization and performance improvement of the pump body.

Although the former invention patent, compared with the traditional liquid pressure pump, it has many advantages in mechanical performance. However, the compression and compression of the piston, the compression-elastic rubber-plastic V-ring, its tightness and durability. Sexuality, however, when the liquid is required to be pressurized under high pressure (above 1000 PSI), there is a problem of poor tightness and rapid wear, and in this case, the conventional high pressure liquid pressure pump also finds the same problem. The reason is that when the liquid enters the piston chamber and is pressurized by the piston, the pressure of the liquid received by the V-ring on the piston is tight, and the amount of deformation increases as the pressure of the liquid increases, when the pressure is large. To a considerable extent, abnormal acceleration wear occurs in the V-ring tightness, and the tightness failure will occur in a short period of time. At this time, in addition to the liquid's obvious antihypertensive reaction, the liquid seeps through the V-ring into the circle. The result of mixing with the lubricating oil in the core hole (mechanical chamber) is often caused by the quality of the lubricating oil being changed (bubbles are generated), which affects the lubrication of the transmission member in the core hole (machine room). If the lubricating oil is not replaced immediately, Even cause a biography Damage to the moving member or Life expectancy is reduced. Therefore, when the piston must pressurize the liquid under high pressure, or require the retaining ring to be more durable, except that the material of the retaining ring must be correctly selected, the most important thing is not to let the retaining ring ring with excessive passage. The squeezing force can really avoid the replacement of the tight ring parts too frequently during the use of the pump. According to the current material technology, it is impossible to overcome the situation that the sealing ring member must be replaced and maintained regularly due to aging or normal wear. Only when the liquid pressure factor is solved, the abnormal wear or deformation of the sealing ring will not be affected or ensured. The tight ring member maintains effective tightness before regular replacement; although the regular replacement of the normally worn deadlock ring is an important task in the use of liquid pressurized pumps, if it is caused by human negligence, there is inaccurate maintenance or overdue maintenance. In the case, as long as the stop ring member fails, either the former invention or the conventional liquid pressure pump may leak the lubricating oil in the core hole (machine room), causing the pressurized liquid to be contaminated by oil stains, or The liquid penetrates into the round core hole (mechanical chamber) and mixes with the lubricating oil, causing the transmission parts to be damaged or broken due to poor lubrication. This problem is solved urgently, even better than improving or increasing the tightness of the sealing ring. It is more important to come.

The main object of the present invention is to provide a safety type liquid pressure pump comprising a pump body, a plurality of piston cap groups, a plurality of pistons and a power output shaft set; the pump body having a mechanical chamber a core hole, the radial core of the core hole is arranged with a plurality of fixing holes penetrating the outside, each of the fixing holes is a class-shaped through hole, from the outside to the inside, having a first class portion, a first a second class department, a third class department and a fourth class department; the first class part is connected to a valve set pipe hole by an inlet and outlet port, and the valve sets the two ends of the pipe hole to pass respectively The liquid inlet check valve communicates with a liquid inlet passage provided with a liquid inlet hole, and communicates with a liquid outlet passage provided with a liquid outlet hole through a liquid discharge check valve; the second class portion is each a liquid-passing through hole communicating with the liquid inlet passage; the third-stage portion is connected by a discharge passage to a discharge liquid a tube hole, and is connected to the outside by the outlet of the liquid discharge tube hole; each of the piston cap groups is respectively disposed on a fixing hole of the pump body by a cap body, and the cap body has a liquid pressure inside a chamber is formed with a space for forming a sealing member, and a radial direction of the liquid pressing chamber is opposite to the first step portion of the fixing hole, and at least one through hole is opened to communicate with the inlet and outlet ports, and the locking member is provided with a space. From the liquid pressurizing chamber end, the sequentially arranged group is provided with a first anchoring rubber ring, a first retaining sleeve, a first isolating ring, a second retaining rubber ring, a second isolating ring, and a a third tight seal ring and a second retaining sleeve, the first spacer ring being interposed between the first retaining sleeve and the second anchoring rubber ring, having a plurality of first gaps, the first gap is passed The at least one return hole communicates with the liquid return through hole at the second step portion of the fixing hole, and the second isolation ring has a plurality of second between the second dead glue ring and the third dead glue ring a gap, the second gap is communicated with the drain passage at a third level portion of the fixing hole through at least one discharge hole; a piston is disposed in a core hole of the pump body, and one end of the piston body is inserted into the liquid pressurizing chamber of the piston cap group, so that the body of the plug body is sheathed by the first and second socket sleeves, and Forming a plurality of stages of tightness with the first, second and third sealing rubber rings; the output shaft group is sealed and locked at both ends of the core hole of the pump body by a front cover and a bottom cover, and is sealed The assembly is disposed in the core hole, and has at least one output shaft extending from the front cover and driven by a motor, and the output shaft is rotated in the core hole, and a piston is formed in the piston cap group. There is an eccentric portion for pushing forward in the liquid pressurized chamber; the external liquid is inserted into the liquid passage from the liquid inlet, and the eccentric portion of the output shaft is pushed into the piston cap group in succession and continuity. During the reciprocating motion, the liquid can pass through the check valve of the liquid inlet check valve, and the piston that is returned by the return stroke is pressurized in the pressure chamber to be pressurized, and the piston pressurized by the process is pushed through the liquid discharge check valve. Reversing, and then outputting the pressurized liquid from the liquid outlet of the liquid outlet end; this liquid Pressure process, the stop ring and the first shoe-tight plastic plug sleeve, is directly subjected to liquid pressurizing chamber when the force pressing the force pressurizing the liquid side, a little seepage The pressurized liquid passing through the first deadlock rubber ring and the first retaining sleeve, when reaching the first gap of the first isolation ring, is enlarged by the volume space, and the pressure release property is converted into a low pressure liquid, thus, The second stop-tight rubber ring can indirectly withstand the low-pressure liquid type, and maintain the tightness on the piston for a long time, and the low-pressure liquid is also blocked by the second dead-end rubber ring, and flows out through the return hole. The flow-through hole flows back into the liquid passage, thereby causing the piston to pressurize the liquid, thereby obtaining an effective extension of the working hours; and even if the maintenance work is timed, due to human negligence, when the piston cap group is expired, Because the second gap of the second isolation ring between the second anchoring rubber ring and the third anchoring rubber ring in each piston cap group has the oil or liquid which can be discharged or infiltrated, and then passes through the discharge hole and The drain passage discharges the outside from the drain hole, so that the lubricating oil in the core hole can permanently prevent the leakage of the liquid into and out of the liquid pressurizing chamber end, and the liquid pressurizing chamber end Liquid can never penetrate into the core hole Lubricants mixed effectively maintain the output shaft can be set in a normal operating state or a good lubrication, and to ensure that the pressurized liquid is not contaminated by grease.

A second object of the present invention is to provide a safety type liquid pressure pump, wherein the pump body is formed by metal gravity casting integrally forming a core hole, a plurality of fixing holes and a plurality of respectively intersecting the fixing holes. The valve group is provided with a pipe hole, and also passes through the sand core during casting, and at least a liquid inlet passage, a liquid outlet passage and a liquid discharge passage through the valve assembly hole and the fixing hole are built in the inside of the pump body. Channel and drain tube hole; the path of the liquid into and out of the pump is the direct built-in strength of the pump body, so that the pump is used for liquid pressurization, especially when the high pressure output liquid is pressurized. Effectively improve the stability of the work.

A further object of the present invention is to provide a safety type liquid pressure pump, wherein each of the piston cap groups is respectively disposed on a fixing hole of the pump body, and the cap body of the piston cap group is respectively a cap having a liquid pressurizing chamber and an inner hollow having a hollow member The tubular caps are formed by screwing together, and the tubular caps of the caps are engaged in the first, second and third sealing glues by allowing decomposition or combination between the caps and the tubular caps. When the ring, the first and second socket sleeves and the first and second isolation rings are assembled, the fixing of the cap head on the tubular cap seat can be easily completed; and the inlet end of the fixing hole of the pump body is Is provided with an internal thread, and the cap of the cap body is formed with an external thread with respect to the internal thread, and the external thread of the cap is rotatably screwed on the internal thread of the fixing hole to lock the piston cap group Assembly or replacement can be done quickly on the fixing hole.

Another object of the present invention is to provide a safety type liquid pressure pump, wherein the first isolation ring in the cap body of the piston cap group is formed by a plurality of protrusions on one end of a ring piece to form a plurality of a gap, when the piston reciprocates in the cap body, the ring-shaped integrated stud is supported by the first retaining sleeve and the second retaining rubber ring, so that the first gap can maintain the infiltration for a long time. The pressure is released after the liquid is enlarged, and the second tight-sealing rubber ring is prevented from being subjected to excessive pressing force.

Another object of the present invention is to provide a safety type liquid pressure pump, wherein the second isolation ring of the cap body of the piston cap group is formed by a plurality of protrusions on one end of a ring piece to form a plurality of Two gaps, when the piston reciprocates in the cap body, the second anti-dense rubber ring and the third anti-dense rubber ring are in a state of normal wear, if there is excessive wear, and there is excessive wear, by the ring The integrated post of the sheet is provided with an isolating support between the second and third sealing rubber rings, so that the second gap can reliably store the oil spilled from the hole end of the round core, and can be effectively stored in the liquid pressurizing chamber. The liquid infiltrated into the end, and smoothly discharged from the discharge hole to the outside, and exerts a good isolation effect between the lubricating oil at the end of the round core and the liquid at the end of the liquid pressurized chamber.

A second object of the present invention is to provide a safe type liquid pressure pump, wherein the third-stage portion of the fixing hole is connected to a drain hole by a drain passage, and the drain is discharged. The outlet end of the tube hole is connected with a liquid storage box, and the oil or liquid contained in the second gap of the second isolation ring in each piston cap group passes through the liquid discharge hole and the liquid discharge channel to reach the liquid discharge tube hole. When the liquid storage box is collected, the external environment may be prevented from being polluted; and the liquid storage box is further provided with a liquid detecting device, and when the liquid storage medium contains oil or liquid, the liquid is used. The detection of the physical detector reveals the external signal, so that the user of the pump can easily receive the signal. It is judged that the second rubber ring or the third rubber ring has worn out and must be repaired.

10‧‧‧Pump ontology

11‧‧‧ round core hole

12‧‧‧Fixed holes

120‧‧‧First Class Department

121‧‧‧Second Class Department

122‧‧‧The Third Class Department

123‧‧‧The Fourth Class Department

124‧‧‧Return through hole

125‧‧‧Draining channel

126‧‧‧ internal thread

13‧‧‧Inlet and outlet

14‧‧‧ valve set tube hole

15‧‧‧Inlet hole

16‧‧‧Inlet channel

17‧‧‧liquid outlet

18‧‧‧Drain channel

19‧‧‧Drain tube hole

20‧‧‧ piston cap group

21‧‧‧Cap

21A‧‧‧Hat head

21B‧‧‧ tubular cap

210‧‧‧Liquid pressurized chamber

211‧‧‧Settlement space

212‧‧‧through hole

213‧‧‧Return hole

214‧‧‧Drain hole

215‧‧‧ external thread

22‧‧‧First stop glue ring

23‧‧‧First condom

24‧‧‧First isolation ring

240‧‧‧First gap

241‧‧‧ ring

242‧‧‧Bump

25‧‧‧Second stop glue ring

26‧‧‧Second isolation ring

260‧‧‧ second gap

261‧‧‧ ring

262‧‧‧Bump

27‧‧‧ Third stop glue ring

28‧‧‧ Third socket

30‧‧‧Piston

31‧‧‧ linkages

40‧‧‧Output shaft set

41‧‧‧Output shaft

42‧‧‧Eccentric

50‧‧‧Inlet check valve

51‧‧‧liquid check valve

60‧‧‧ front cover

61‧‧‧ bearing

62‧‧‧ oil seal

70‧‧‧ bottom cover

71‧‧‧ Bearing

80‧‧‧ liquid storage box

81‧‧‧Liquid detector

1 is a schematic exploded perspective view of the structure of the present invention;

2 is a perspective view showing the cut-away structure of the inlet passage of the pump body of the present invention;

3 is a perspective view showing the cut-away structure of the outlet passage of the pump body of the present invention;

Figure 4 is a schematic side view of a side end of the present invention

Figure 5 is a schematic view showing the planar structure of the bottom cover end of the present invention

Figure 6 is a schematic cross-sectional view of the portion of Figure 4A-A

Figure 7 is a schematic enlarged view of the drainage passage portion of Figure 6

Figure 8 is a schematic cross-sectional view of the portion of Figure 5B-B

Figure 9 is a schematic cross-sectional view of the portion of Figure 5C-C

Figure 10 is a schematic view showing the enlarged structure of the return through hole portion of Figure 9

Figure 11 is an exploded perspective view showing the structure of the piston cap set of the present invention.

Figure 12 is a schematic view showing the state of the output shaft pressing piston of the present invention.

Figure 13 is a schematic view showing the structure of a liquid storage tube outlet of the pump body of the present invention;

A safety liquid pressure pump includes a pump body 10, a plurality of piston cap groups 20, a plurality of pistons 30 and a power output shaft set 40; the pump body 10, as shown in Figures 1, 2, and 3, has A circular core hole 11 as a mechanical chamber, the radial direction of the core hole 11 is uniformly arranged with a plurality of fixing holes 12 penetrating the outside through the outer surface, and each fixing hole 12 is as shown in FIGS. 4, 6, and 7. a class-shaped through hole, from the outside to the inside, having a first class portion 120, a second class portion 121, a third class 122 portion, and a fourth class portion 123; as shown in Figures 2, 6, and 7, The first step portion 120 is connected to a valve assembly tube hole 14 by an inlet and outlet port 13 respectively. As shown in Figs. 2, 5 and 8, the valve assembly is provided with two ends of the tube hole 14 respectively. The reverse valve 50 communicates with a liquid inlet passage 16 provided with a liquid inlet hole 15, as shown in Figs. 1, 3, and 8, and through a liquid discharge check valve 51 and a liquid outlet passage 18 provided with a liquid outlet hole 17. In the same manner, as shown in FIGS. 5, 9, and 10, the second step portion 121 is connected to the liquid inlet passage 16 by a liquid-repellent through hole 124; as shown in FIGS. One row of liquid pass 125 is connected (collected) to a drain tube hole 19, and the outlet of the drain tube hole 19 is such that each drain passage 125 communicates with the outside; as shown in Figures 1, 6, 7, and 11, each of the piston caps The group 20 is respectively disposed on the fixing hole 12 of the pump body 10 by a cap body 21 having a liquid pressurizing chamber 210 and a stopper assembly space 211 formed therein. In the radial direction of the chamber 210, the first step portion 120 of the fixing hole 12 is open with at least one through hole 212 communicating with the inlet and outlet port 13. The tight member assembly space 211 is from the liquid pressurizing chamber 210 end. The sequentially arranged group is provided with a first tight seal ring 22, a hard wear-resistant first retainer sleeve 23, a first spacer ring 24, a second stop-stop rubber ring 25, and a second spacer ring 26. , a third stop glue ring 27 and a hard The wear-resistant second socket 28, as shown in FIGS. 9, 10 and 11, the first spacer 24 is interposed between the first socket 23 and the second anchor ring 25, and has a plurality of first gaps 240. The first gap 240 communicates with the liquid return through hole 124 at the second level portion 121 of the fixing hole 12 through at least one return hole. As shown in FIGS. 7 and 11, the second spacer ring 26 is connected to the second stop. Between the adhesive ring 25 and the third anchoring ring 27, a plurality of second gaps 260 are formed through the at least one discharge hole 214 at the third level portion 122 of the fixing hole 12 and the row The liquid passages 125 are in communication; as shown in FIGS. 1 and 6, each of the pistons 30 is in the core bore 11 of the pump body 10, and the liquid pressurizing chamber 210 of the piston cap group 20 is inserted into one end of the pump body 10; , as shown in FIG. 7, the body of the plug body is sleeved by the first and second socket sleeves 23, 28, and forms a plurality of sections of the first, second, and third sealing rubber rings 22, 25, 27; 1, 6, and 9, the other end of the core hole 11 is in a straight line opposite type, and one end between the two pistons 30 is connected to each other by a linkage member 31; The output shaft set 40 is A front cover 60 and a bottom cover 70 are sealed and locked at both ends of the core hole 11 of the pump body 10 (with the bearings 61, 71 and the oil seal 62), and the sealed group is disposed in the core hole 11 The utility model has at least one output shaft 41 extending from the front cover 60 and driven by a motor (not shown), and the output shaft 41 is rotated in the core hole 11 to form a piston 30 in the piston cap group 20. a cam-type eccentric portion 42 for performing a forward pressing action in the liquid pressurizing chamber 210 is formed; the external liquid is inserted into the liquid passage 16 from the liquid inlet hole 15, and the motor (not shown) drives the output shaft 41. The eccentric portion 42, as shown in Figs. 6 and 12, is pushed and pushed by the linking member 31 to generate a mutual interlocking piston 30 in each of the piston cap groups 20, and successively reciprocating as shown in Figs. 9, 12, 12, the liquid can pass through the valve set hole 14 to enter the check valve 50, and the return port 13 is returned The piston 30 is sucked into the liquid pressure chamber 210 to be pressurized, and the piston 30 pressurized by the process is pushed back through the check valve 51 (in conjunction with Figs. 1, 3), and then from the liquid outlet passage 18. The liquid discharge port 17 of the end is used for outputting the pressurized liquid; the liquid pressurization process, as shown in FIG. 10, the tight seal rubber ring 22 and the first plug sleeve 23 are directly subjected to the liquid pressurization of the liquid pressurizing chamber 210 end. Excessive force, although the liquid pressure is sufficient to squeeze through the first anchoring rubber ring 22, the small gap between the rigid first receiving sleeve 23 and the piston 30 restricts only a small amount of liquid, and these little The pressurized liquid that has permeated through the first deadlock rubber ring 22 and the first retaining sleeve 23 is enlarged by the volume space (instantaneous) due to the arrival of the first gap 240 of the first spacer ring 24, and the pressure-relieving property It is converted into a low-pressure liquid. Thus, the second dead-end rubber ring 25 can indirectly withstand the low-pressure liquid type, and maintains the tightness on the piston 30 for a long time, and the low-pressure liquid is also subjected to the second dead-end rubber ring 25 After the flow stops from the return hole 213, it flows back through the return through hole 124 to the liquid inlet passage 16 (will not be accumulated in the first gap 240), thereby The pressure action of the plug 30 on the liquid is effectively extended (the maintenance time can be extended, or the replacement time of the piston cap group 20 can be extended); and even if the maintenance work is timed, due to human negligence, the occurrence of the expiration When the piston cap set 20 (refers to the second and third stop rubber rings 25, 27 are normally worn but not regularly replaced), as shown in Fig. 7, since the second deadlock rubber ring 25 in each piston cap group 20 is The second gap 260 of the second spacer ring 26 between the third anchoring rubber ring 27 has a liquid or liquid capable of escaping or infiltrating, and is discharged from the liquid discharge pipe 19 through the discharge hole 214 and the liquid discharge passage 125. The external isolation function, therefore, the lubricating oil in the core hole 11 (mechanical chamber) can permanently prevent the leakage of the liquid into and out of the liquid pressurizing chamber 210, and the liquid in the liquid pressurizing chamber 210, It can never infiltrate into the core hole 11 and mix with the lubricating oil (meaning that the mechanical chamber has no liquid infiltration, the quality of the lubricating oil is maintained for a long time), and the effective maintenance output shaft Group 40 can operate in a normal or well lubricated state and ensures that the pressurized liquid is not contaminated by oil.

According to the above embodiment, wherein, as shown in FIGS. 1, 2, 3, 6, and 8, the pump body 10 is integrally formed with a core hole 11 by a metal gravity casting, a plurality of fixing holes 12 and a plurality of fixing holes respectively The valve intersecting the holes 11 is provided with a pipe hole 14 and is also passed through a sand core during casting. Inside the pump body 10, at least a liquid inlet passage 16 communicating with the valve assembly pipe hole 14 and the fixing hole 12 is built therein. , the liquid outlet channel 18, the liquid discharge channel 125 and the liquid discharge tube hole 19; the path of the liquid into and out of the pump is the direct built-in good strength inside the pump body 10, so that the pump is used for liquid pressurization, especially Refers to the high pressure output of the liquid when the pressure is working, effectively improving the stability of the work.

According to the above embodiment, in FIG. 1, each of the piston cap groups 20 is respectively disposed on the fixing hole 12 of the pump body 10, and the cap 21 of the piston cap group 20 is as shown in FIGS. 10 and 11. It is composed of a cap 21A having a liquid pressurizing chamber 210 and a tubular cap 21B having a packing portion 211 therein, which are respectively screwed together (locked) by the cap. 21A and the tubular cap 21B are allowed to be disassembled or combined, so that the tubular cap 21B of the cap body 21 is engaged in the first, second and third sealing rubber rings 22, 25, 27, the first and second socket sleeves. 23, 28 and the first and second isolation rings 24, 26 can be easily fixed by locking the cap 21A on the tubular cap 21B; and the inlet end of the fixing hole 12 of the pump body 10 is An internal thread 126 is provided, and the cap 21A of the cap body 21 is formed with an external thread 215 relative to the internal thread 126, and the external thread 215 of the cap body 21 is rotatably screwed into the internal thread of the fixing hole 12. The 126 is locked, so that the piston cap set 20 can be quickly assembled or replaced on the fixing hole 12.

According to the above embodiment, wherein, as shown in FIGS. 10 and 11, the piston cap group 20 The first spacer ring 24 in the cap body 21 is formed by a plurality of protrusions 242 formed on one end of a ring piece 241 to form a plurality of first gaps 240. When the piston 30 reciprocates in the cap body 21, the ring is used. The sheet 241 integrated protrusion 242 is provided with an isolating support between the first socket sleeve 23 and the second anchoring rubber ring 25, so that the first gap 240 can maintain the pressure release after expanding the volume of the infiltrated liquid for a long time, avoiding the first The second tight rubber ring 25 is subjected to excessive force.

According to the above embodiment, wherein the second spacer ring 26 in the cap 21 of the piston cap group 20 is formed by a plurality of protrusions 262 at one end of a ring piece 261 to form a plurality of second portions. The gap 260, when the piston 30 reciprocates in the cap body 21, the second anti-dense rubber ring 25 and the third anti-dense rubber ring 27 are in a state of normal wear, and if there is no regular replacement, excessive wear occurs. When the annular post 261 is integrated with the stud 262 between the second and third anti-adhesive rings 25, 27 for isolation support, the second gap 260 can reliably store the grease leaking from the end of the core hole 11 And or can be effectively accommodated into the liquid pressurized chamber 210 end of the liquid, and smoothly discharged from the discharge hole 214 through the drainage channel 125 and the liquid pipe hole 19 to the outside, to play the core hole 11 end of the lubricating oil and liquid plus Good liquid isolation at the end of the pressure chamber.

According to the above embodiment, wherein, as shown in FIG. 13, the third-stage portion 122 of the fixing hole 12 is connected to a drain hole 19 by a drain passage 125, and the outlet end of the drain hole 19 is connected. A liquid storage tank 80 is disposed, and the oil or liquid contained in the second space 260 of the second isolation ring 26 in each of the piston cap groups 20 passes through the liquid discharge hole 214 and the liquid discharge passage 125 to reach the liquid discharge pipe hole 19 The collection of the liquid storage box 80 can avoid contamination of the external environment; and the liquid storage box 80 is further provided with a liquid detector 81. When the liquid storage tank 80 has oil or liquid, The detection by the liquid detector 81 is sent out. No., so that the user of the pump can be easily received by the signal, and the second stop glue ring 25 or the third stop glue ring 27 has been worn out and must be repaired.

The above description is intended to be illustrative, and not restrictive, and many modifications, variations and equivalents may be made without departing from the spirit and scope of the invention. However, they all fall within the scope of protection of the present invention.

10‧‧‧Pump ontology

11‧‧‧ round core hole

12‧‧‧Fixed holes

120‧‧‧First Class Department

121‧‧‧Second Class Department

122‧‧‧The Third Class Department

123‧‧‧The Fourth Class Department

125‧‧‧Draining channel

13‧‧‧Inlet and outlet

14‧‧‧ valve set tube hole

19‧‧‧Drain tube hole

20‧‧‧ piston cap group

21‧‧‧Cap

210‧‧‧Liquid pressurized chamber

211‧‧‧Settlement space

212‧‧‧through hole

30‧‧‧Piston

31‧‧‧ linkages

Claims (8)

A safe liquid pressure pump includes a pump body, a plurality of piston cap groups, a plurality of pistons and a power output shaft set; the pump body has a core hole as a mechanical chamber, the core hole The radial uniform arrangement is provided with a plurality of fixing holes extending through the outside, each of the fixing holes being a class-shaped through hole, from the outside to the inside, having a first class portion, a second class portion, and a third class And the fourth class part; the first class part is connected to a valve set pipe hole by an inlet and outlet port, and the valve sets the two ends of the pipe hole through a liquid inlet check valve and a The liquid inlet passage is provided with a liquid inlet hole, and communicates with a liquid outlet passage provided with a liquid outlet hole through a liquid discharge check valve; the second step portion is each a liquid return through hole The liquid passages communicate with each other; the third-stage portion is connected by a discharge passage to a discharge pipe hole, and is connected to the outside by an outlet of the discharge pipe hole; each of the piston cap groups is respectively composed of one The cap body is disposed on the fixing hole of the pump body, and the cap body has a liquid pressing chamber and shape a sealing member is provided with a space. The radial direction of the liquid pressing chamber is opposite to the first step portion of the fixing hole, and at least one through hole is opened to communicate with the inlet and outlet ports. The locking member sets a space from the liquid. The pressurizing chamber end, the sequentially arranged group is provided with a first deadlock rubber ring, a first retaining sleeve, a first isolation ring, a second deadlock rubber ring, a second isolation ring, and a third stop. a first rubber ring and a second socket; the first spacer is interposed between the first socket and the second anchor ring, and has a plurality of first gaps, wherein the first gap is through at least one reflow a hole is communicated with the liquid-receiving through-hole at the second-stage portion of the fixing hole, and the second isolating ring has a plurality of second gaps between the second and the first anti-adhesive ring. a second gap is communicated with the drain passage at a third level portion of the fixing hole through at least one discharge hole; each of the pistons is in a round core hole of the pump body, and is respectively pierced by one end thereof Entering the liquid pressurizing chamber of the piston cap group, so that the body of the plug body is sleeved by the first and second socket sleeves, and the first II. The three-stop rubber ring forms a plurality of stages of tightness; the output shaft group is sealed and locked at both ends of the core hole of the pump body by a front cover and a bottom cover, and the sealed group is disposed in the core hole Inside, it has at least one output shaft extending from the front cover and being driven by a motor, and the output shaft is rotated in the core hole, and a piston is formed in the piston cap group to generate a pressurized indoor chamber. The eccentric portion of the forward pressing action; the external liquid is inserted into the liquid passage from the liquid inlet hole, and the eccentric portion of the output shaft pushes the pistons into a piston cap group, and the liquid is continuously and continuously reciprocated. The anti-reverse valve can be stopped by the inflowing check valve, and the piston that is returned by the returning stroke is sucked into the liquid pressure chamber to be pressurized, and the piston pressurized by the process is pushed through the anti-reverse valve of the liquid discharge check valve, and then discharged from the liquid. The liquid outlet of the channel end is used for outputting pressurized liquid; the liquid pressurization process, the tight-sealing rubber ring and the first bearing sleeve are directly subjected to the forced force of the liquid pressurized chamber end when the liquid is pressurized, and a little permeated. The first deadlock rubber ring and the first plug sleeve are pressurized, due to the arrival of the first isolation When the first gap is enlarged, the volume space is enlarged, and the pressure-relieving property is converted into a low-pressure liquid. Thus, the second dead-end rubber ring can indirectly bear the low-pressure liquid type and maintain the piston on the piston for a long time. The tightness is tight, and the low-pressure liquid is also blocked by the second dead-end rubber ring. After flowing out from the return hole, it flows back into the liquid passage through the return-through hole, thereby causing the piston to pressurize the liquid to obtain the working hours. Effective extension; and even if the maintenance work is timed, due to human negligence, there is a situation in which the piston cap group is expired, because the second stop rubber ring and the third dead glue ring in each piston cap group are second. The second gap of the spacer ring has the function of accommodating the oil or liquid leaking or infiltrating, and discharging the outside from the drain hole through the discharge hole and the drain passage. Therefore, the lubricating oil in the round core hole It can permanently prevent the leakage of liquid into and out of the liquid pressurized chamber end, and the liquid at the end of the liquid pressurizing chamber, or it can never penetrate into the round core hole and mix with the lubricating oil, effectively maintaining the output shaft group energy. In normal or well lubricated form Under the operation, and to ensure that the pressurized liquid grease is not contaminated. The safe liquid pressure pump according to the first aspect of the patent application, wherein the pump body is formed by metal gravity casting integrally forming a core hole, a plurality of fixing holes and a plurality of respectively intersecting the fixing holes. The valve group is provided with a pipe hole, and also passes through the sand core during casting, and at least a liquid inlet passage, a liquid outlet passage and a liquid discharge passage through the valve assembly hole and the fixing hole are built in the inside of the pump body. Channel and drain tube hole; the path of the liquid into and out of the pump is the direct built-in strength of the pump body, so that the pump is used for liquid pressurization, especially when the high pressure output liquid is pressurized. Effectively improve the stability of the work. The safety liquid pressure pump according to the first aspect of the patent application, wherein each of the piston cap groups is respectively disposed on a fixing hole of the pump body, and the cap body of the piston cap group is respectively The cap of the cap having a liquid pressurizing chamber and a tubular cap having a space for assembling the retaining member are respectively screwed and connected to each other, and the allowable decomposition or combination between the cap and the tubular cap is allowed. , the tubular cap of the cap body can be passed through the cap head in the tubular cap when assembling the first, second and third sealing rubber rings, the first and second socket sleeves and the first and second isolation rings. The upper lock is fixed and fixed. The safety liquid pressure pump according to claim 3, wherein the inlet end of the fixing hole of the pump body is provided with an internal thread, and the cap of the cap body is formed with respect to the internal thread The external thread is rotatably screwed on the internal thread of the fixing hole by the external thread of the cap, so that the piston cap group can be quickly assembled or replaced on the fixing hole. The safety liquid pressure pump according to the first aspect of the patent application, wherein the first isolation ring in the cap body of the piston cap group is formed by a plurality of protrusions on one end of the ring piece to form a plurality of a gap, when the piston reciprocates in the cap body, the ring-shaped integrated stud is supported by the first retaining sleeve and the second retaining rubber ring, so that the first gap can maintain the infiltration for a long time. The pressure is released after the liquid is enlarged, and the second tight-sealing rubber ring is prevented from being subjected to excessive pressing force. The safety liquid pressure pump according to claim 1, wherein the second isolation ring of the cap body of the piston cap is formed by a plurality of protrusions on one end of the ring piece to form a plurality of Two gaps, when the piston reciprocates in the cap body, the second anti-dense rubber ring and the third anti-dense rubber ring are in a state of normal wear, if there is excessive wear, and there is excessive wear, by the ring The integrated post of the sheet is provided with an isolating support between the second and third sealing rubber rings, so that the second gap can reliably store the oil spilled from the hole end of the round core, and can be effectively stored in the liquid pressurizing chamber. The liquid infiltrated into the end, and smoothly discharged from the discharge hole to the outside, and exerts a good isolation effect between the lubricating oil at the end of the round core and the liquid at the end of the liquid pressurized chamber. The safe liquid pressure pump according to claim 1, wherein the third-stage portion of the fixing hole is connected to a drain hole by a drain passage, and the outlet of the drain hole The end is provided with a liquid storage box, and the oil or liquid contained in the second gap of the second isolation ring in each piston cap group can be borrowed through the liquid discharge hole and the liquid discharge passage to the liquid discharge pipe hole. The collection of the liquid storage box avoids pollution to the external environment. The safe liquid pressure pump according to claim 7 of the patent application scope, wherein the liquid storage box is further provided with a liquid detector, and when the liquid or liquid is contained in the liquid storage box, the liquid inspection is performed. The detection of the device detects the external signal, so that the user of the pump can easily receive the signal. It is judged that the second rubber ring or the third rubber ring has worn out and must be repaired.