Water jet system
By using a single piston to separate the piston chamber in the water jet system, continuous liquid supply is achieved, solving the problems of complex structure and high leakage risk in the existing technology, and improving the performance of the water jet system.
Patent Information
- Application Number
- CN202422443798.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In existing waterjet systems, the dual-piston rod structure results in problems such as complex structure, large size, and high risk of leakage.
A single piston divides the piston chamber into two independent chambers, enabling continuous liquid supply. When a one-way valve reciprocates within the piston chamber, one chamber is supplied with liquid under positive pressure, while the other chamber is drawn in by negative pressure, simplifying the structure and reducing the risk of leakage.
It simplifies the structural complexity, reduces the size of the external components, effectively reduces the risk of leakage, and improves the performance of the waterjet system.
Smart Images
Figure CN223554922U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medical apparatus and instruments, particularly relates to a water jet system. BACKGROUND
[0002] In order to ensure the continuity of the pump body to the water jet main body, the medical pump currently applied to the water jet uses the scheme of double piston rods and four cavities to realize uninterrupted liquid supply, specifically, through four one-way valves arranged in a certain direction, two high-pressure water outlet cavities and two low-pressure water suction cavities are formed in the four cavities. One piston rod high-pressure water outlet and the other piston rod low-pressure water suction, two piston rods reciprocate to realize the stability and continuity of the water jet main body.
[0003] However, the current medical pump continuous liquid supply scheme has the following problems:
[0004] (1) Simultaneous control of two piston rods reciprocating will inevitably increase the complexity of the matching host in connection, driving and disengagement;
[0005] (2) For disposable products, the double piston rod pump body is large in size and high in cost;
[0006] (3) Due to the existence of two pistons, there is a greater risk of leakage in actual use, and the reliability is insufficient. INVENTION CONTENTS
[0007] The utility model solves the technical problem that the water jet structure is complex, large in size and has a high risk of leakage, and provides a water jet system.
[0008] The utility model solves the above technical problems through the following technical scheme:
[0009] A water jet system, comprising a water jet main body and a pump body module, the pump body module has a water outlet chamber and a water inlet chamber, the pump body module further has a piston chamber and a piston, the piston can reciprocate in the piston chamber and separate the piston chamber into a first chamber and a second chamber, the chamber wall of the first chamber and the second chamber is respectively provided with a water outlet and a water inlet, the first chamber and the second chamber are respectively communicated with the water outlet chamber through the water outlet, and are respectively communicated with the water inlet chamber through the water inlet, a one-way valve capable of opening in the direction from the water inlet chamber to the water outlet chamber is arranged at the water inlet and the water outlet.
[0010] In the technical solution, a piston chamber is arranged in the pump body module communicated with the water jet main body, the piston chamber is divided into two independent chambers (i.e., a first chamber and a second chamber) by a single piston, the two chambers are respectively communicated with a water outlet chamber and a water inlet chamber in a one-way manner, when the piston reciprocates in the piston chamber, one of the chambers is under positive pressure to supply liquid to the water outlet chamber, and the other chamber is under negative pressure to suck liquid into the water inlet chamber, so that only the single piston and the single piston chamber can meet the purpose of continuous liquid supply to the water jet main body by using the two side surfaces of the piston.
[0011] Compared with the current scheme of using two pistons and two piston chambers to realize continuous liquid supply by alternating work, the structural arrangement scheme has more advantages in simplifying the complexity of the structure, reducing the size of the appearance, and reducing the risk of leakage, and effectively improves the product performance of the water jet system.
[0012] Preferably, the one-way valve arranged at the water inlet is a first one-way valve, and the first one-way valve comprises:
[0013] a first blocking part arranged at the opening surface of the water inlet on one side of the piston chamber;
[0014] a limiting part formed in the piston chamber and used for limiting the first blocking part between a first position and a second position, when the first blocking part is located at the first position, the first blocking part blocks the water inlet, and when the first blocking part is located at the second position, the first blocking part partially opens the water inlet.
[0015] In the technical solution, the first one-way valve at the water inlet is arranged with a limiting part to limit the position of the first blocking part relative to the water outlet, so that the first blocking part can be pressed to be at the first position when the piston chamber is under negative pressure relative to the water inlet, to close the water inlet, and the first blocking part can be pressed to be at the second position when the piston chamber is under positive pressure relative to the water inlet, to partially open the water inlet, so that the first blocking part can be opened and closed relative to the water inlet without a spring.
[0016] Under the structural arrangement scheme, the first one-way valve can be opened in the state that the water jet system is not used, so that the piston chamber can be drained and cleaned through the water inlet chamber, and the cleanliness of the piston chamber is improved.
[0017] Preferably, the first position and the second position of the limiting part are arranged along a direction perpendicular to the opening extension direction of the water inlet.
[0018] Preferably, the one-way valve arranged at the water outlet is a second one-way valve, and the second one-way valve comprises:
[0019] A second blocking part is arranged at the opening surface of the water outlet on the side of the water outlet chamber, and is used to block the water outlet;
[0020] An elastic part extends along the opening direction of the water outlet, one end of the elastic part abuts against the second blocking part, and the other end is fixed in the water outlet chamber.
[0021] In the technical solution, the second one-way valve at the water outlet continuously applies a force to the second blocking part for blocking the water outlet through the arrangement of the elastic part, so as to improve the reverse blocking capability of the second one-way valve to the water outlet, avoid the reverse flow or leakage of the piston chamber on the side for connecting the water jet body, and improve the operation reliability of the entire water jet system.
[0022] Preferably, the second blocking part is a ball with a diameter greater than that of the water outlet.
[0023] Preferably, the elastic part is a spiral spring.
[0024] Preferably, the piston chamber is horizontally arranged, and the piston reciprocates in the piston chamber in the horizontal direction.
[0025] Preferably, in the piston chamber, the two water outlets are arranged at the upper side chamber walls of the first chamber and the second chamber, respectively.
[0026] Preferably, in the piston chamber, the two water inlets are arranged at the lower side chamber walls of the first chamber and the second chamber, respectively.
[0027] Preferably, in the piston chamber, the water outlet and the water inlet are arranged to be relatively far away in the vertical direction.
[0028] Preferably, in the piston chamber, the water outlet of the first chamber and the water outlet of the second chamber are arranged to be relatively far away.
[0029] Preferably, in the piston chamber, the water inlet of the first chamber and the water inlet of the second chamber are arranged to be relatively far away.
[0030] Preferably, the water inlet chamber is located below the piston chamber, the water inlet chamber has a water inlet pipeline in communication with an external water source, and the water inlet pipeline extends downward in the vertical direction at the water inlet chamber.
[0031] Preferably, the water outlet chamber is located above the piston chamber, the water outlet chamber has a water outlet pipeline in communication with the water jet body, and the water outlet pipeline extends in the horizontal direction at the water outlet chamber.
[0032] The utility model discloses a positive progress effect lies in: utilize single piston to divide piston chamber into two independent chambers to realize the purpose of the continuous liquid supply to the water -jet main body through single piston and single piston chamber, compared with the scheme that two pistons and two piston chambers alternate work realizes the continuous liquid supply currently, in the simplification structure complex degree, reduce the appearance volume size and reduce the leakage risk aspect, all more have the advantage, effectively promote the product performance of water -jet system. BRIEF DESCRIPTION OF DRAWINGS
[0033] Figure 1 It is the structural schematic diagram of the pump body module of an embodiment of the utility model (one).
[0034] Figure 2 It is the structural schematic diagram of the pump body module of an embodiment of the utility model (two).
[0035] Figure 3 It is the local structure schematic diagram of the water outlet.
[0036] Figure 4 It is Figure 3 The enlarged schematic view of A.
[0037] Figure 5 It is the local structure schematic diagram when the water inlet is opened.
[0038] Figure 6 It is Figure 5 The enlarged schematic view of B.
[0039] Figure 7 It is the local structure schematic diagram when the water inlet is closed.
[0040] Figure 8 It is Figure 7 The enlarged schematic view of C.
[0041] Pump body module 100
[0042] Water outlet chamber 1
[0043] Water inlet chamber 2
[0044] First chamber 31
[0045] Second chamber 32
[0046] Water inlet 33
[0047] Water outlet 34
[0048] Piston 4
[0049] First check valve 51
[0050] First closing part 511
[0051] Limiting part 512
[0052] Second one-way valve 52
[0053] Second blocking part 521
[0054] Elastic part 522
[0055] Water inlet pipe 61
[0056] Water outlet pipe 62 DETAILED DESCRIPTION
[0057] The utility model will be described below in conjunction with the preferred embodiments and the accompanying drawings.
[0058] As Figures 1-8 shown, the embodiment provides a water jet system, which comprises a water jet body (not shown in the figure) and a pump body module 100, the pump body module 100 is used to continuously supply water to the water jet body, the pump body module 100 has a water outlet chamber 1, a water inlet chamber 2, a piston chamber and a piston 4, the piston 4 can reciprocate in the piston chamber and separate the piston chamber into a first chamber 31 and a second chamber 32, the cavity wall of the first chamber 31 and the second chamber 32 is respectively provided with a water outlet 34 and a water inlet 33, the first chamber 31 and the second chamber 32 are respectively communicated with the water outlet chamber 1 through the respective water outlet 34 and are respectively communicated with the water inlet chamber 2 through the respective water inlet 33, and a one-way valve capable of opening in the direction from the water inlet chamber 2 to the water outlet chamber 1 is arranged at the water inlet 33 and the water outlet 34. By arranging the piston chamber in the pump body module 100 communicated with the water jet body, the piston chamber is separated into two independent chambers (i.e. the first chamber 31 and the second chamber 32) by a single piston 4, by making the two chambers one-way communicated with the water outlet chamber 1 and the water inlet chamber 2 respectively, when the piston 4 reciprocates in the piston chamber, one of the chambers is under positive pressure and supplies liquid to the water outlet chamber 1, and the other chamber is under negative pressure and absorbs liquid to the water inlet chamber 2, so that only through a single piston 4, a single piston chamber and the two sides of the piston 4 can meet the purpose of continuously supplying liquid to the water jet body.
[0059] The structure setting scheme has more advantages in simplifying the complexity of structure, reducing the size of the appearance and reducing the risk of leakage compared with the scheme of using two pistons 4 and two piston chambers to alternately work to realize continuous liquid supply to the water jet body, effectively improving the product performance of the water jet system.
[0060] As Figure 1 and Figure 2 shown, the thickened arrows in the figure are the flow direction of the liquid, and the specific Figure 1As shown, when the piston 4 moves from the first chamber 31 to the second chamber 32, the first chamber 31 is under negative pressure to suck liquid from the inlet chamber 2, and the second chamber 32 is under positive pressure to supply liquid to the outlet chamber 1. Figure 2 As shown, when the piston 4 moves from the second chamber 32 to the first chamber 31, the second chamber 32 is under negative pressure to suck liquid from the inlet chamber 2, and the first chamber 31 is under positive pressure to supply liquid to the outlet chamber 1.
[0061] In particular, in the present embodiment, as shown in Figure 1 and Figure 2 the inlet port 33 and the outlet port 34 of the first chamber 31 are respectively a first inlet port 33 and a first outlet port 34, and the inlet port 33 and the outlet port 34 of the second chamber 32 are respectively a second inlet port 33 and a second outlet port 34, the first inlet port 33 and the second inlet port 33 are respectively arranged on the two sides of the piston 4, and the first outlet port 34 and the second outlet port 34 are also respectively arranged on the two sides of the piston 4. That is, the stroke range of the piston 4 is between the first inlet port 33 and the second inlet port 33, and also between the first outlet port 34 and the second outlet port 34.
[0062] In the present embodiment, the sealing requirement at the inlet port 33 is relatively lower than that at the outlet port 34. As shown in Figure 1 , Figure 2 and Figures 5-8 the one-way valve arranged at the inlet port 33 is a first one-way valve 51, which includes a first blocking part 511 and a limiting part 512. The first blocking part 511 is arranged at the opening surface of the inlet port 33 on one side of the piston chamber, and the limiting part 512 is formed in the piston chamber and is used to limit the first blocking part 511 between the first position and the second position. As shown in Figure 7 and Figure 8 when the first blocking part 511 is located at the first position, the first blocking part 511 blocks the inlet port 33; as shown in Figure 5 and Figure 6As shown, when the first blocking part 511 is in the second position, the first blocking part 511 partially opens the water inlet 33. By setting the limiting part 512 to limit the position of the first blocking part 511 relative to the water outlet 34, the first blocking part 511 can be in the first position under the action of pressure when the piston chamber is under negative pressure relative to the water inlet chamber 2, and close to and block the water inlet 33, and the first blocking part 511 can be in the second position under the action of pressure when the piston chamber is under positive pressure relative to the water inlet chamber 2, and away from and partially open the water inlet 33, so that the opening and closing of the first blocking part 511 relative to the water inlet 33 can be achieved without setting a spring. In this structure, the first one-way valve 51 can be opened in the state that the water jet system is not used, facilitating the drainage and cleaning of the piston chamber through the water inlet chamber 2, and improving the cleanliness of the piston chamber.
[0063] The partially open water inlet 33 described in this embodiment means that when the blocking part is in the second position, the blocking part does not block the water outlet 34, but the blocking part is still near the water inlet 33, and liquid can flow from the water inlet chamber 2 into the piston chamber through the water inlet 33.
[0064] Specifically, in this embodiment, as shown in Figure 6 and Figure 8 The first position and the second position of the limiting part 512 are arranged along a direction perpendicular to the extension direction of the opening of the water inlet 33. That is, when the first one-way valve 51 is opened, the limiting part 512 is in the second position beside the water inlet 33.
[0065] Of course, in other embodiments, the first position is arranged closer to the water inlet 33 relative to the second position, so that the blocking part can be relatively far away from the water inlet 33 in the second position to achieve the opening of the water inlet 33.
[0066] In this embodiment, the one-way valve arranged at the water outlet 34 is a second one-way valve 52, which includes a second blocking part 521 and an elastic part 522. The second blocking part 521 is arranged at the opening surface of the water outlet 34 on the side of the water outlet chamber 1, and is used to block the water outlet 34. Along the extension direction of the opening of the water outlet 34, one end of the elastic part 522 abuts against the second blocking part 521, and the other end is fixed in the water outlet chamber 1. The second one-way valve 52 at the water outlet 34 applies a continuous force to the second blocking part 521 for blocking the water outlet 34 by setting the elastic part 522, so as to improve the reverse blocking ability of the second one-way valve 52 to the water outlet 34, avoid reverse flow or leakage of the piston chamber on the side for connecting the water jet body, and improve the operation reliability of the entire water jet system.
[0067] Specifically, as shown in Figure 4 and Figure 6As shown, the first blocking part 511 is a ball with a diameter larger than the water inlet 33, the second blocking part 521 is a ball with a diameter larger than the water outlet 34, and the elastic part 522 is a spiral spring. By setting the first blocking part 511 and the second blocking part 521 as balls and the elastic part 522 as a spiral spring, the structure is simple and reliable.
[0068] Of course, in other embodiments, the first blocking part 511 and the second blocking part 521 can also be set in other structural forms capable of blocking the water inlet 33 and the water outlet 34, such as setting the first blocking part 511 as a polyhedron and the second blocking part 521 as a block structure, and the like, which will not be described here.
[0069] In the present embodiment, as shown in Figure 1 and Figure 2 The piston chamber is horizontally arranged, and the piston 4 reciprocates in the horizontal direction in the piston chamber. In the piston chamber, the two water outlets 34 are respectively arranged at the upper side chamber walls of the first chamber 31 and the second chamber 32, and the two water inlets 33 are respectively arranged at the lower side chamber walls of the first chamber 31 and the second chamber 32, that is, the water outlets 34 and the water inlets 33 are arranged relatively far away in the vertical direction. By arranging the water inlets 33 and the water outlets 34 far away in the vertical direction, the water inlets 33 are on the lower side and the water outlets 34 are on the upper side, so that the water inlets 33 and the water outlets 34 do not interfere with each other.
[0070] At the same time, the water outlet 34 of the first chamber 31 and the water outlet 34 of the second chamber 32 are arranged relatively far away, and the water inlet 33 of the first chamber 31 and the water inlet 33 of the second chamber 32 are arranged relatively far away. That is, the first water inlet 33 and the second water inlet 33 are arranged relatively far away, and the first water outlet 34 and the second water outlet 34 are arranged relatively far away, so that the piston 4 has a larger stroke range, and the single water inlet time and the single water outlet time of each chamber are prolonged, the frequency of opening of the one-way valve is reduced, and the water jet system is more durable.
[0071] In particular, in the present embodiment, the first water inlet 33 and the first water outlet 34 are arranged in the vertical direction, and the second water inlet 33 and the second water outlet 34 are also arranged in the vertical direction. Compared with arranging the water inlets 33 and the water outlets 34 in the same chamber in the horizontal direction, the water inlets 33 and the water outlets 34 in the same chamber are in the same position in the horizontal direction, which can maximize the stroke of the piston 4.
[0072] In the present embodiment, the water inlet chamber 2 is located below the piston chamber, and the water inlet chamber 2 has a water inlet pipeline 61 communicating with an external water source, which extends downward in the vertical direction at the water inlet chamber 2. The water outlet chamber 1 is located above the piston chamber, and the water outlet chamber 1 has a water outlet pipeline 62 communicating with the water jet body, which extends in the horizontal direction at the water outlet chamber 1.
[0073] Of course, in other embodiments, the extension direction of the water inlet pipe 61 and the water outlet pipe 62 can be set according to actual needs, for example, setting the water inlet pipe 61 horizontally can reduce the size of the water jet system in the vertical direction, which will not be described here.
[0074] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.
Claims
1. A water jet system comprising a water jet body and a pump body module, the pump body module having a water outlet chamber and a water inlet chamber, characterized in that, The pump body module further has a piston chamber and a piston capable of reciprocating in the piston chamber and separating the piston chamber into a first chamber and a second chamber, the cavity walls of the first chamber and the second chamber are respectively provided with a water outlet and a water inlet, the first chamber and the second chamber are respectively communicated with the water outlet chamber through the water outlet and communicated with the water inlet chamber through the water inlet, and a one-way valve capable of opening in the direction from the water inlet chamber to the water outlet chamber is arranged at the water inlet and the water outlet.
2. The water jet system of claim 1, wherein, The one-way valve arranged at the water inlet is a first one-way valve, and the first one-way valve comprises: A first blocking part arranged at the opening surface of the water inlet on one side of the piston chamber; A limiting part formed in the piston chamber and used for limiting the first blocking part between a first position and a second position, when the first blocking part is located at the first position, the first blocking part blocks the water inlet, and when the first blocking part is located at the second position, the first blocking part partially opens the water inlet.
3. The water jet system of claim 2, wherein, The first position and the second position of the limiting part are arranged along a direction perpendicular to the opening extension direction of the water inlet.
4. The water jet system of claim 1, wherein, The one-way valve arranged at the water outlet is a second one-way valve, and the second one-way valve comprises: A second blocking part arranged at the opening surface of the water outlet on one side of the water outlet chamber, the second blocking part is used for blocking the water outlet; An elastic part, one end of the elastic part abuts against the second blocking part along the opening extension direction of the water outlet, and the other end is fixed in the water outlet chamber.
5. The water jet system of claim 4, wherein, The second blocking part is a ball with a diameter greater than that of the water outlet; And / or, the elastic part is a spiral spring.
6. The water jet system of claim 1, wherein, The piston chamber is horizontally arranged, and the piston reciprocates in the piston chamber along the horizontal direction.
7. The water jet system of claim 6, wherein, In the piston chamber, the two water outlets are respectively arranged at the upper cavity walls of the first chamber and the second chamber; And / or, in the piston chamber, the two water inlets are respectively arranged at the lower cavity walls of the first chamber and the second chamber; And / or, in the piston chamber, the water outlet and the water inlet are arranged to be relatively far away in the vertical direction.
8. The water jet system of claim 6, wherein, In the piston chamber, the water outlet is arranged to be relatively far away from the piston; And / or, in the piston chamber, the water inlet is arranged to be relatively far away from the piston.
9. The water jet system of claim 6, wherein, The water inlet chamber is located below the piston chamber, and the water inlet chamber has a water inlet pipeline communicated with an external water source, the water inlet pipeline extends downward along the vertical direction at the water inlet chamber.
10. The water jet system of claim 6, wherein, The water outlet chamber is located above the piston chamber, and the water outlet chamber has a water outlet pipeline communicated with the water knife main body, the water outlet pipeline extends along the horizontal direction at the water outlet chamber.