Flusher connecting device with overflow protection function

Abstract

The utility model generally relates to the technical field of medical instruments, in particular to a flusher connecting device with an overflow protection function, which comprises a pump body, a water inlet pipe, a water outlet pipe and an overflow mechanism, the overflow mechanism penetrates through the water inlet pipe and is communicated with the water outlet pipe, and the overflow mechanism comprises an overflow valve core, an overflow spring and a spring cover. The spring cover is arranged on the water inlet pipe in a sleeving mode, the top end of the overflow spring abuts against the spring cover, the overflow spring is arranged on the top of the overflow valve element in a sleeving mode, and the overflow valve element penetrates through the water inlet pipe to be communicated with the water outlet pipe. When the water pressure in the water outlet pipe borne by the overflow valve element is larger than the pressure of the overflow spring, the water pressure pushes the overflow valve element to rise, the water outlet pipe overflows into the water inlet pipe to release pressure, damage to the interior of the pump body caused by the pressure in the water outlet pipe is reduced, the service life of the pump body is prolonged, and the use efficiency of the flusher is further improved.

Description

Technical Field

[0001] This utility model generally relates to the field of medical device technology, and more specifically, to a flushing device connection device with overflow protection. Background Technology

[0002] In various open and laparoscopic minimally invasive surgeries performed in departments such as laparoscopy and urology, the surgical field is often blurred due to massive bleeding caused by tissue cutting. Therefore, it is necessary to use an irrigation and suction device to irrigate and aspirate waste fluid to restore a clear field of vision in time so as to find the bleeding point and perform electrocoagulation hemostasis.

[0003] Currently, existing flushers have switches on the handle to control the water flow. Although the handle has a switch, the pump continues to work. When the handle is turned off, the pressure at the pump outlet continues to increase, which can damage the internal parts of the pump and affect the flusher's efficiency. Utility Model Content

[0004] This application provides a flusher connection device with overflow protection to solve the technical problem in the prior art where the increased pressure at the pump outlet when the handle is closed causes damage to the internal parts of the pump.

[0005] This application provides a flushing device with overflow protection, including a pump body, an inlet pipe, an outlet pipe, and an overflow mechanism. The inlet pipe and the outlet pipe are connected to the pump body. The overflow mechanism is disposed on the inlet pipe and passes through the inlet pipe and communicates with the outlet pipe. The overflow mechanism includes an overflow valve core, an overflow spring, and a spring cover. The spring cover is sleeved on the inlet pipe, the top end of the overflow spring abuts against the spring cover, and the overflow spring is sleeved on the top end of the overflow valve core. The overflow valve core passes through the inlet pipe and communicates with the outlet pipe.

[0006] Preferably, the bottom end of the overflow valve core is provided with a sealing groove with an annular recessed structure, and a sealing element is provided in the sealing groove, and the sealing element is sleeved on the outside of the overflow valve core.

[0007] Preferably, the sealing element is a sealing ring.

[0008] Preferably, the overflow valve core is provided with a limiting block at both the upper and lower ends. The upper limiting block presses against the top of the water inlet pipe, and the lower limiting block is disposed in the sealing groove.

[0009] Preferably, the inlet pipe and the outlet pipe are made of rigid PVC.

[0010] Preferably, the pump body is a high-flow diaphragm pump.

[0011] As can be seen from the above technical solution, the advantages and positive effects of the flusher connection device with overflow protection of this utility model are as follows: under the action of the overflow valve core and the overflow spring, when the water pressure in the outlet pipe on the overflow valve core is greater than the pressure of the overflow spring, the water pressure pushes the overflow valve core to rise, and the outlet pipe overflows into the inlet pipe to release pressure, which helps to reduce the damage caused by the pressure in the outlet pipe to the pump body, improve the service life of the pump body, and further improve the efficiency of the flusher. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view of a flusher connection device with overflow protection disclosed in an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the structure of a flusher connection device with overflow protection disclosed in an embodiment of this application;

[0015] Figure 3 yes Figure 2 Enlarged view of point P.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Pump body; 2. Inlet pipe; 3. Outlet pipe; 4. Overflow mechanism; 401. Overflow valve core; 402. Overflow spring; 403. Spring cover; 5. Sealing groove; 6. Sealing element; 7. Limit block. Detailed Implementation

[0018] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0019] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0020] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0022] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0023] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0025] like Figure 1-3 As shown, a flushing device with overflow protection includes a pump body 1, an inlet pipe 2, an outlet pipe 3, and an overflow mechanism 4. The inlet pipe 2 and the outlet pipe 3 are connected to the pump body 1. The overflow mechanism 4 is disposed on the inlet pipe 2 and passes through the inlet pipe 2, communicating with the outlet pipe 3. The overflow mechanism 4 includes an overflow valve core 401, an overflow spring 402, and a spring cover 403. The spring cover 403 is sleeved on the inlet pipe 2, and the top end of the overflow spring 402 abuts against the spring cover 403. The overflow spring 402 is sleeved on the top of the overflow valve core 401. The overflow valve core 401 passes through the water inlet pipe 2 and is connected to the water outlet pipe 3. Under the action of the overflow valve core 401 and the overflow spring 402, when the water pressure in the water outlet pipe 3 on the overflow valve core 401 is greater than the pressure of the overflow spring 402, the water pressure pushes the overflow valve core 401 to rise, and the water outlet pipe 3 overflows into the water inlet pipe 2 to release pressure. This helps to reduce the damage caused by the pressure in the water outlet pipe 3 to the inside of the pump body 1, improve the service life of the pump body 1, and further improve the efficiency of the flusher.

[0026] The bottom end of the overflow valve core 401 is provided with a sealing groove 5, and a sealing element 6 with an annular recessed structure is provided in the sealing groove 5. The sealing element 6 is sleeved on the outside of the overflow valve core 401. By providing the sealing element 6, the sealing performance of the overflow mechanism 4 can be effectively improved, and water can be prevented from overflowing from the gaps in the device.

[0027] Furthermore, the sealing element 6 is a sealing ring.

[0028] Specifically, the overflow valve core 401 is provided with limit blocks 7 at both the upper and lower ends. The upper limit block 7 presses against the top of the water inlet pipe 2, and the lower limit block 7 is set in the sealing groove 5. By setting the limit blocks 7, the leakage size can be effectively controlled, which is convenient for control and adjustment.

[0029] Specifically, the inlet pipe 2 and the outlet pipe 3 are made of rigid PVC.

[0030] Specifically, the pump body 1 is a high-flow diaphragm pump.

[0031] During operation, under the action of the overflow spring 402 and the seal 6, the overflow valve core 401 allows the outlet pipe 3 and the inlet pipe 2 to operate independently. The outlet pipe 3 is in a positive pressure zone, while the inlet pipe 2 is in a negative pressure zone. When the outlet pipe 3 is closed, the pressure inside the outlet pipe 2 increases. When the water pressure on the overflow valve core 401 is greater than the pressure of the overflow spring 402, the water pressure pushes the overflow valve core 401 to rise, causing the outlet pipe 3 to overflow and release pressure into the inlet pipe 2. This helps reduce the damage caused by the pressure inside the outlet pipe 3 to the inside of the pump body 1, improves the service life of the pump body 1, and further improves the efficiency of the flusher.

[0032] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0033] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A flushing device with overflow protection, comprising a pump body, an inlet pipe, an outlet pipe, and an overflow mechanism, wherein the inlet pipe and the outlet pipe are connected to the pump body, the overflow mechanism is disposed on the inlet pipe, and the overflow mechanism passes through the inlet pipe and communicates with the outlet pipe, characterized in that, The overflow mechanism includes an overflow valve core, an overflow spring, and a spring cover. The spring cover is sleeved on the inlet pipe, the top end of the overflow spring abuts against the spring cover, and the overflow spring is sleeved on the top end of the overflow valve core. The overflow valve core passes through the inlet pipe and is connected to the outlet pipe.

2. The flusher connection device with overflow protection according to claim 1, characterized in that, The bottom end of the overflow valve core is provided with a sealing groove with an annular recessed structure, and a sealing element is provided in the sealing groove. The sealing element is sleeved on the outside of the overflow valve core.

3. The flusher connection device with overflow protection according to claim 2, characterized in that, The sealing element is a sealing ring.

4. The flusher connection device with overflow protection according to claim 2, characterized in that, The overflow valve core is provided with a limiting block at both the upper and lower ends. The upper limiting block presses against the top of the water inlet pipe, and the lower limiting block is set in the sealing groove.

5. The flusher connection device with overflow protection according to claim 1, characterized in that, The inlet and outlet pipes are made of rigid PVC.

6. The flusher connection device with overflow protection according to claim 1, characterized in that, The pump body is a high-flow diaphragm pump.

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