Breathing valve convenient to replace

Abstract

The utility model relates to the technical field of breather valves, in particular to a breather valve convenient to replace, which comprises an exhalation valve body and an inspiration valve body which are fixedly communicated through a communicating pipe, a pressure relief opening and an inspiration opening are respectively arranged on the exhalation valve body and the inspiration valve body, and an exhalation valve cover and an inspiration valve cover are respectively matched at the pressure relief opening and the inspiration opening in a sliding mode. The exhalation valve cover and the inspiration valve cover are connected with the exhalation valve body and the inspiration valve body through a first elastic mechanism and a second elastic mechanism respectively, and a plurality of communicating exhalation ring grooves capable of enabling the pressure relief opening to be communicated are formed in the side, close to the exhalation valve body, of the exhalation valve cover at intervals. Therefore, the telescopic filter cover can be conveniently replaced in a state of avoiding air suction in a running state, and no impurities are sucked in the replacement process in the running state.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing valves, in particular to a breathing valve which is convenient to replace. Background Art

[0002] A breathing valve refers to a valve that not only ensures that the storage tank space is isolated from the atmosphere within a certain pressure range, but can also communicate with the atmosphere (breathe) when the pressure exceeds or falls below this pressure range. Its function is to prevent the storage tank from being damaged due to overpressure or vacuum, and at the same time reduce the evaporation loss of the stored liquid. The provision of a breathing valve can not only reduce the emission of gas in the tank, thereby reducing pollution to the atmosphere, but also prevent the storage tank from being damaged due to overpressure or instability due to ultra-vacuum, and play a certain role in promoting safety and environmental protection. When the pressure in the tank reaches the rated exhalation positive pressure, the pressure valve flap opens, and the steam in the tank is discharged; when the vacuum in the tank reaches the rated inhalation negative pressure, the vacuum valve flap opens, and air enters. After searching, a Chinese patent with publication number CN219639571U discloses a breathing valve with replaceable valve plates, including a first valve body, a support pipe fixedly connected to the top position of the first valve body, a connecting pipe passing through and fixedly connected to the left middle position of the outer wall of the first valve body near the top, and a connecting pipe passing through and fixedly connected to the left middle position of the top of the connecting pipe. The filter screen can be replaced by rotating the fixing plate, but if the filter screen is replaced when the user is about to inhale, the user may inhale without having enough time to install the filter screen, and may easily inhale impurities. Therefore, a breathing valve is designed to facilitate observation of the inhalation and exhalation states, thereby facilitating replacement of the telescopic filter cover in the running state and avoiding the state of inhalation, thereby ensuring that no impurities are inhaled during the replacement process in the running state. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a breathing valve that is easy to replace, which facilitates observation of the inhalation and exhalation states, thereby facilitating replacement of the telescopic filter cover in an operating state while avoiding the state of imminent inhalation, thereby ensuring that no impurities are inhaled during the replacement process in an operating state.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a breathing valve that is easy to replace, comprising an exhalation valve body and an inhalation valve body fixedly connected by a connecting pipe, the exhalation valve body and the inhalation valve body are respectively provided with a pressure relief port and an inhalation port, the pressure relief port and the inhalation port are respectively slidably matched with an exhalation valve cover and an inhalation valve cover, the exhalation valve cover and the inhalation valve cover are respectively connected to the exhalation valve body and the inhalation valve body by elastic mechanism one and elastic mechanism two, the exhalation valve cover is respectively provided with a plurality of connecting exhalation ring grooves that allow the pressure relief port to pass through on a side of the exhalation valve body close to the exhalation valve body, and a plurality of connecting inhalation ring grooves that allow the inhalation port to pass through on a side of the inhalation valve cover away from the inhalation valve body, the outside of the inhalation port is detachably connected with a telescopic filter cover, and the telescopic filter cover is provided with a fixing mechanism that is locked with an end of the inhalation valve cover away from the inhalation valve body.

[0007] Preferably, the fixing mechanism includes a locking cover embedded and fixedly installed on the telescopic filter cover, and both sides of the locking cover are sealed and slidably matched with sliding rods, and the sides of the two sliding rods away from the locking cover are fixedly installed with blocks adapted to the air intake valve cover, and the opposite sides of the two sliding rods are fixedly connected with sliders that slide with the locking cover, and an elastic push-out assembly is arranged between the two sliders.

[0008] Preferably, the elastic push-out assembly includes two compression springs, a partition is fixedly installed in the middle position of the locking cover, the two compression springs are respectively arranged on both sides of the partition and the two ends of the compression springs are respectively fixedly connected to the slider and the partition.

[0009] Preferably, the elastic mechanism comprises a spring, a ventilation guide frame which is fixedly connected to the side of the exhalation valve cover close to the exhalation valve body and slides with the exhalation valve body as a guide, the ventilation guide frame has a guide rod which is fixedly connected to the inner top of the exhalation valve body as a guide and slides with the guide, the bottom of the guide rod is fixedly connected to a limit block which is arranged below the ventilation guide frame, and the limit block is fixedly connected to the exhalation valve body, the spring is arranged on the guide rod, and the two ends of the spring are respectively fixedly connected to the inner top wall of the exhalation valve body and the ventilation guide frame.

[0010] Preferably, the second elastic mechanism includes a second spring, and a ventilation guide frame second that slides with the intake valve body is fixedly connected to the intake valve cover on one side close to the intake valve body, and the ventilation guide frame second is provided with a guide rod second that slides with the intake valve body, and the bottom of the second guide rod is fixedly connected with a limit block second that is arranged below the second ventilation guide frame, and the top of the second guide rod is fixedly connected to the intake valve body through a ventilation fixing frame, the second spring is sleeved on the second guide rod, and the two ends of the second spring are respectively fixedly connected to the ventilation fixing frame and the second ventilation guide frame.

[0011] Preferably, the telescopic filter cover is fixedly connected to the air intake valve body by bolts.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a breathing valve that is easy to replace, which has the following beneficial effects:

[0014] The easily replaceable breathing valve, through the cooperation of the exhalation valve cover and the multiple connected exhalation ring grooves arranged on the exhalation valve cover and the elastic mechanism one, can move outward against the exhalation valve cover when the pressure in the tank increases; when the pressure in the tank reaches the rated exhalation positive pressure, the exhalation valve cover moves outward to one of the connected exhalation ring grooves to reach the pressure relief port, and the pressure is relieved through the gap between the connected exhalation ring grooves and the pressure relief port. After the pressure relief is completed, the exhalation valve cover is pulled back into the exhalation valve body under the action of the rebound force of the elastic mechanism one; through the cooperation of the inhalation valve body, the inhalation valve cover, the connected inhalation ring grooves and the elastic mechanism two, when negative pressure is formed in the tank, the inhalation valve cover moves into the inhalation valve body; when the vacuum degree in the tank reaches the rated inhalation negative pressure, the inhalation valve cover continues to move into the inhalation valve body and One of the connected suction ring grooves is connected to the suction port, so that external gas can be sucked in through the gap between the connected suction ring groove and the suction port, thereby reducing the internal negative pressure, and the inhaled gas can be filtered by the telescopic filter cover, and by setting a fixing mechanism, the suction valve cover can be simultaneously retracted and extended when it moves into or out of the suction valve body, so that the suction and exhalation states can be observed by observing the extended state of the exhalation valve cover and the suction valve cover, and the convenient replacement of the breathing valve can pre-exhaust the suction state, so that the telescopic filter cover can be replaced in the state of avoiding inhalation, which is convenient for observing the suction and exhalation states, and thus it is convenient to replace the telescopic filter cover in the operating state to avoid the state of inhalation, and ensure that no impurities are inhaled during the replacement process in the operating state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the overall partial section of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model from other perspectives as a whole;

[0018] Figure 4 It is a schematic diagram of the structure of the air suction valve cover, the second elastic mechanism and the telescopic filter cover of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the cooperation between the exhalation valve mask and the elastic mechanism of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0021] Markings in the attached drawings: 1. exhalation valve body; 2. connecting pipe; 3. inhalation valve body; 4. exhalation valve cover; 5. connecting exhalation ring groove; 6. inhalation valve cover; 7. connecting inhalation ring groove; 8. telescopic filter cover; 9. locking cover; 10. slider; 11. slide rod; 12. block; 13. compression spring; 14. ventilation guide frame 1; 15. guide rod 1; 16. limit block 1; 17. spring 1; 18. ventilation guide frame 2; 19. ventilation fixing frame; 20. guide rod 2; 21. limit block 2; 22. spring 2. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1-6 A breathing valve that is easy to replace, comprising an exhalation valve body 1 and an inhalation valve body 3 fixedly connected by a connecting pipe 2, the exhalation valve body 1 and the inhalation valve body 3 are respectively provided with a pressure relief port and an inhalation port, the pressure relief port and the inhalation port are respectively slidably matched with an exhalation valve cover 4 and an inhalation valve cover 6, the exhalation valve cover 4 and the inhalation valve cover 6 are respectively connected to the exhalation valve body 1 and the inhalation valve body 3 by an elastic mechanism 1 and an elastic mechanism 2, and a plurality of spaced apart portions are arranged on the exhalation valve cover 4 near the exhalation valve body 1. A connecting exhalation ring groove 5 that allows the pressure relief port to pass through, a plurality of connecting inhalation ring grooves 7 that allow the inhalation port to pass through are arranged at intervals on the side of the inhalation valve cover 6 away from the inhalation valve body 3, a telescopic filter cover 8 is detachably connected to the outside of the inhalation port, and the telescopic filter cover 8 is provided with a fixing mechanism that is locked with one end of the inhalation valve cover 6 away from the inhalation valve body 3. Furthermore, a mounting hole is opened on any one of the exhalation valve body 1 and the inhalation valve body 3, and a connecting flange is fixedly connected to the mounting hole.

[0025] Specifically, the fixing mechanism includes a locking cover 9 which is embedded and fixedly installed on the telescopic filter cover 8. Both sides of the locking cover 9 are sealed and slidably matched with sliding rods 11. The two sliding rods 11 are fixedly installed with blocks 12 adapted to the air intake valve cover 6 on the side away from the locking cover 9. The opposite sides of the two sliding rods 11 are fixedly connected with sliders 10 which are slidably matched with the locking cover 9, and an elastic push-out component is arranged between the two sliders 10. The elastic push-out component can facilitate the two sliders 10 to be pushed outward, thereby driving the two blocks 12 outward and stuck on the air intake valve cover 6. If the slider 10 is pinched with both hands, the elastic push-out component is further compressed, thereby allowing the two sliding rods 11 to move inward, and then the two blocks 12 to move to the middle.

[0026] Specifically, the elastic outward push component includes two compression springs 13, and a partition is fixedly installed in the middle position of the locking cover 9. The two compression springs 13 are respectively arranged on both sides of the partition and the two ends of the compression spring 13 are respectively fixedly connected to the slider 10 and the partition. The compression spring 13 facilitates the slider 10 to be pushed outward.

[0027] Specifically, the elastic mechanism 1 includes a spring 17, and a ventilation guide frame 14 that guides and slides with the exhalation valve body 1 is fixedly connected to one side of the exhalation valve cover 4 close to the exhalation valve body 1. The ventilation guide frame 14 is provided with a guide rod 15 that is fixedly connected to the inner top of the exhalation valve body 1 for guiding and sliding. The bottom of the guide rod 15 is fixedly connected to a limit block 16 arranged below the ventilation guide frame 14, and the limit block 16 is fixedly connected to the exhalation valve body 1. The spring 17 is sleeved on the guide rod 15, and the two ends of the spring 17 are respectively fixedly connected to the inner top wall of the exhalation valve body 1 and the ventilation guide frame 14. Through the cooperation of the ventilation guide frame 14, the guide rod 15, the limit block 16 and the spring 17, when the exhalation valve cover 4 moves outward, there is a pulling force on the exhalation valve cover 4, thereby ensuring the balance of the exhalation valve cover 4.

[0028] Specifically, the second elastic mechanism includes a spring 22, and a ventilation guide frame 2 18 that guides and slides with the intake valve body 3 is fixedly connected to the side of the intake valve cover 6 close to the intake valve body 3, and a guide rod 20 is provided on the ventilation guide frame 18 to guide and slide, and the bottom of the guide rod 20 is fixedly connected to a limit block 21 arranged below the ventilation guide frame 18, and the top of the guide rod 20 is fixedly connected to the intake valve body 3 through the ventilation fixing frame 19, and the spring 22 is sleeved on the guide rod 20, and the two ends of the spring 22 are respectively fixedly connected to the ventilation fixing frame 19 and the ventilation guide frame 18, through the cooperation of the ventilation guide frame 18, the ventilation fixing frame 19, the guide rod 20, the limit block 21 and the spring 22, it is convenient to have an outward pushing force on the intake valve cover 6 when the intake valve cover 6 moves inward, thereby ensuring the balance of the intake valve cover 6.

[0029] Specifically, the telescopic filter cover 8 is fixedly connected to the air intake valve body 3 by bolts, and can be easily disassembled by the bolts.

[0030] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0031] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0032] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0033] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A breathing valve that is easy to replace, characterized in that: The invention comprises an exhalation valve body (1) and an inhalation valve body (3) which are fixedly connected via a connecting pipe (2), wherein the exhalation valve body (1) and the inhalation valve body (3) are respectively provided with a pressure relief port and an inhalation port, wherein the pressure relief port and the inhalation port are respectively slidably matched with an exhalation valve cover (4) and an inhalation valve cover (6), wherein the exhalation valve cover (4) and the inhalation valve cover (6) are respectively connected to the exhalation valve body (1) and the inhalation valve body (3) via an elastic mechanism 1 and an elastic mechanism 2, wherein the exhalation valve cover A plurality of communicating exhalation annular grooves (5) are arranged at intervals on a side close to the exhalation valve body (1) and through which the pressure relief port can pass; a plurality of communicating inhalation annular grooves (7) are arranged at intervals on a side of the inhalation valve cover (6) away from the inhalation valve body (3) and through which the inhalation port can pass; a telescopic filter cover (8) is detachably connected to the outside of the inhalation port; a fixing mechanism is arranged on the telescopic filter cover (8) and is locked with an end of the inhalation valve cover (6) away from the inhalation valve body (3).

2. The easily replaceable breathing valve according to claim 1 is characterized in that: The fixing mechanism comprises a locking cover (9) which is embedded and fixedly mounted on the telescopic filter cover (8); both sides of the locking cover (9) are sealingly and slidably matched with sliding rods (11); a clamping block (12) which is matched with the air intake valve cover (6) is fixedly mounted on one side of the two sliding rods (11) away from the locking cover (9); a sliding block (10) which is slidably matched with the locking cover (9) is fixedly connected to the opposite side of the two sliding rods (11); and an elastic push-out assembly is arranged between the two sliding blocks (10).

3. The easily replaceable breathing valve according to claim 2 is characterized in that: The elastic push-out assembly comprises two compression springs (13), a partition is fixedly installed in the middle position of the locking cover (9), the two compression springs (13) are respectively arranged on both sides of the partition, and the two ends of the compression spring (13) are respectively fixedly connected to the slider (10) and the partition.

4. The easily replaceable breathing valve according to claim 3 is characterized in that: The elastic mechanism comprises a spring (17); a ventilation guide frame (14) which is fixedly connected to a side of the exhalation valve cover (4) close to the exhalation valve body (1) and is slidingly matched with the exhalation valve body (1); a guide rod (15) which is fixedly connected to the inner top of the exhalation valve body (1) and is slidingly matched with the ventilation guide frame (14); a limit block (16) which is arranged below the ventilation guide frame (14) is fixedly connected to the bottom of the guide rod (15); and the limit block (16) is fixedly connected to the exhalation valve body (1); the spring (17) is sleeved on the guide rod (15), and the two ends of the spring (17) are respectively fixedly connected to the inner top wall of the exhalation valve body (1) and the ventilation guide frame (14).

5. The easily replaceable breathing valve according to claim 4 is characterized in that: The second elastic mechanism comprises a second spring (22); a second ventilation guide frame (18) which is in sliding cooperation with the ventilation valve body (3) is fixedly connected to a side of the ventilation valve cover (6) close to the ventilation valve body (3); a second guide rod (20) is in sliding cooperation with the ventilation guide frame (18); and a second limit block (21) arranged below the second ventilation guide frame (18) is fixedly connected to the bottom of the second guide rod (20); the top of the second guide rod (20) is fixedly connected to the ventilation valve body (3) through a ventilation fixing frame (19); the second spring (22) is sleeved on the second guide rod (20), and the two ends of the second spring (22) are respectively fixedly connected to the ventilation fixing frame (19) and the second ventilation guide frame (18).

6. The easily replaceable breathing valve according to claim 5, characterized in that: The telescopic filter cover (8) is fixedly connected to the air intake valve body (3) via bolts.

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