Drain valve convenient to maintain

Abstract

The utility model provides a drain valve convenient to maintain, which comprises a drain valve body, a valve cover is mounted at the top of the drain valve body, a filter screen is arranged in the drain valve body, first shells are fixed on two sides of the inside of the drain valve body, second shells are fixed on two sides of the filter screen, and the first shells and the second shells are arranged in the drain valve body. A rotating rod is fixed to the interior of the second shell in a penetrating mode, and an oval plate is fixed to one end of the rotating rod. The drain valve convenient to maintain has the advantages that the position of the filter screen can be locked by installing the locking mechanism, the position of the filter screen is prevented from moving, meanwhile, the filter screen is very convenient to disassemble and maintain through the locking mechanism, the filter screen is disassembled and cleaned at regular intervals, and the drain valve is convenient to maintain. The situation that the drain valve body needs to be overhauled or replaced due to blockage or damage is avoided, the maintenance cost is reduced, the operation process is simple, and the working efficiency of workers is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a steam trap which is easy to maintain. Background Art

[0002] The function of the steam trap is to automatically remove steam condensate and non-condensable gases such as air in the heating equipment or steam pipe without leaking steam. Since the steam trap has the function of blocking steam and draining water, it can make the steam heating equipment heat evenly and make full use of the latent heat of steam to prevent water hammer in the steam pipe.

[0003] A Chinese patent discloses a steam trap (authorization announcement number CN208871329U), which has the advantages of being not easy to wear, having a long service life and saving costs.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: during the use of existing steam traps, filter screens are often used to prevent condensed water and impurities from entering the interior of the steam trap. After long-term use, the holes in the filter screens will cause accumulation, which can easily cause the steam trap to become clogged or damaged, and the steam trap needs to be cleaned regularly. However, the current process of disassembling and replacing the filter screen is relatively cumbersome, which affects the work efficiency of the staff and increases the maintenance cost. Utility Model Content

[0005] In view of this, the utility model aims to provide a steam trap that is easy to maintain, in order to solve at least one of the above-mentioned technical problems.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A steam trap that is easy to maintain, comprising a steam trap body, a valve cover installed on the top of the steam trap body, a filter screen arranged inside the steam trap body, first shells fixed on both sides of the steam trap body, second shells fixed on both sides of the filter screen, a rotating rod fixed through the inside of the second shell, and an elliptical plate fixed on one end of the rotating rod;

[0008] A locking mechanism for locking the filter screen is installed inside the second shell.

[0009] Furthermore, the locking mechanism includes a movable plate slidably connected to both ends of the second shell, a card block is fixed to one side of the movable plate, and both ends of the first shell are provided with a card slot, and the interior of the card slot is slidably connected to the card block.

[0010] Preferably, limiting rods are fixed at both ends of the interior of the second shell, and limiting grooves are provided on the surface of the movable plate, and the interior of the limiting grooves is slidably connected to the surface of the limiting rods.

[0011] Furthermore, first springs are fixed at both ends inside the second shell, and the other end of the first spring is fixed to the moving plate.

[0012] Furthermore, the rotating rod is slidably connected to a sliding rod inside, a knob is fixed to the other end of the sliding rod, an insertion rod is fixed to the side of the knob close to the second shell, a slot is opened on one side of the second shell, and the inside of the slot is sleeved with the insertion rod.

[0013] Furthermore, both sides of the rotating rod are provided with sliding grooves, the interior of the sliding groove is slidably connected with a slider, and the other end of the slider is fixed to the sliding rod.

[0014] Furthermore, a second spring is fixed inside the rotating rod, and the other end of the second spring is fixed to the sliding rod.

[0015] Compared with the prior art, the steam trap easy to maintain described in the utility model has the following beneficial effects:

[0016] The utility model discloses a steam trap which is easy to maintain. By installing a locking mechanism, the position of the filter screen can be locked to prevent the filter screen from moving. At the same time, the locking mechanism is also very convenient for disassembling and maintaining the filter screen. The filter screen can be disassembled and cleaned regularly to avoid the steam trap body needing major repairs or replacements due to blockage or damage, thereby reducing maintenance costs, simplifying the operation process, and improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the steam trap according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic cross-sectional structure diagram of the locking mechanism according to an embodiment of the utility model;

[0020] Figure 3 For the embodiment of the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the housing according to an embodiment of the utility model;

[0022] Figure 5 For the embodiment of the utility model Figure 4 Schematic diagram of the structure at point B in the middle.

[0023] Description of reference numerals:

[0024] 1. Steam trap body; 2. Valve cover; 3. Filter; 4. First shell; 5. Second shell; 6. Rotating rod; 7. Elliptical plate; 8. Moving plate; 9. Block; 10. Slot; 11. Limiting rod; 12. Limiting slot; 13. First spring; 14. Sliding rod; 15. Knob; 16. Inserting rod; 17. Slot; 18. Slide slot; 19. Sliding block; 20. Second spring. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] like Figures 1 to 5As shown, a steam trap that is easy to maintain includes a steam trap body 1, a valve cover 2 is installed on the top of the steam trap body 1, a filter screen 3 is arranged inside the steam trap body 1, a first shell 4 is fixed on both sides of the steam trap body 1, a second shell 5 is fixed on both sides of the filter screen 3, a rotating rod 6 is fixed through the inside of the second shell 5, an elliptical plate 7 is fixed at one end of the rotating rod 6, and a locking mechanism for locking the filter screen 3 is installed inside the second shell 5. By installing the locking mechanism, the position of the filter screen 3 can be locked to prevent the position of the filter screen 3 from moving. At the same time, the removal and maintenance of the filter screen 3 are also very convenient through the locking mechanism, and the filter screen 3 can be regularly removed and cleaned to avoid the steam trap body 1 from being blocked or damaged and requiring major repairs or replacements, thereby reducing maintenance costs, simplifying the operation process, and improving the work efficiency of the staff.

[0030] The locking mechanism includes a moving plate 8 which is slidably connected to both ends of the second shell 5, a card block 9 is fixed to one side of the moving plate 8, a card slot 10 is provided at both ends of the first shell 4, the inside of the card slot 10 is slidably connected to the card block 9, a first spring 13 is fixed to both ends of the second shell 5, the other end of the first spring 13 is fixed to the moving plate 8, a sliding rod 14 is slidably connected to the inside of the rotating rod 6, a knob 15 is fixed to the other end of the sliding rod 14, and an insertion rod 16 is fixed to the side of the knob 15 close to the second shell 5, and the second A slot 17 is provided on one side of the housing 5, and the interior of the slot 17 is sleeved with the insertion rod 16. The insertion rod 16 is driven to disengage from the interior of the slot 17 by pulling the knob 15, and then the knob 15 is turned to drive the rotating rod 6 to rotate, and at the same time the elliptical plate 7 is rotated ninety degrees, so that the elliptical plate 7 no longer blocks the movable plate 8, and then the resilience of the first spring 13 is used to drive the movable plate 8 to pull the card block 9 out of the interior of the card slot 10, so that the filter screen 3 can be quickly disassembled and replaced, thereby facilitating the maintenance of the steam trap body 1.

[0031] Limiting rods 11 are fixed at both ends inside the second shell 5, and a limiting groove 12 is provided on the surface of the movable plate 8. The inside of the limiting groove 12 is slidably connected to the surface of the limiting rod 11. By setting the structure of the limiting rod 11 and the limiting groove 12, the moving trajectory of the movable plate 8 can be limited to avoid tilting.

[0032] Slide grooves 18 are provided on both sides of the rotating rod 6, and a slider 19 is slidably connected inside the slide groove 18. The other end of the slider 19 is fixed to the slide rod 14. By setting the structure of the slide groove 18 and the slider 19, the moving trajectory of the slide rod 14 can be restricted to prevent the user from using excessive force when pulling the knob 15, causing the slide rod 14 to detach from the inside of the rotating rod 6.

[0033] A second spring 20 is fixed inside the rotating rod 6, and the other end of the second spring 20 is fixed to the sliding rod 14. By setting the second spring 20, when the user pulls the knob 15 to drive the sliding rod 14 to move outward, the second spring 20 begins to stretch, and then when the insertion rod 16 needs to be reset, the force of the second spring 20 is used to drive the knob 15 to push the insertion rod 16 into the interior of the slot 17, which greatly saves manpower.

[0034] Working process:

[0035] The user can lock the position of the filter screen 3 by installing the locking mechanism to prevent the position of the filter screen 3 from moving. At the same time, the removal and maintenance of the filter screen 3 is also very convenient through the locking mechanism. The filter screen 3 can be regularly removed and cleaned to avoid the need for major repairs or replacements of the drain valve body 1 due to blockage or damage, thereby reducing maintenance costs, simplifying the operation process, and improving the work efficiency of the staff. The insertion rod 16 is driven to disengage from the interior of the slot 17 by pulling the knob 15, and then the knob 15 is turned to drive the rotating rod 6 to rotate, and at the same time the elliptical plate 7 is rotated ninety degrees, so that the elliptical plate 7 no longer blocks the moving plate 8, and then the resilience of the first spring 13 is used to drive the moving plate 8 to pull the card block 9 out of the interior of the card slot 10, and the locking can be achieved. The filter screen 3 can be quickly disassembled and replaced, thereby facilitating the maintenance of the drain valve body 1. By setting the structure of the limit rod 11 and the limit groove 12, the moving trajectory of the movable plate 8 can be limited to avoid tilting. By setting the structure of the slide groove 18 and the slider 19, the moving trajectory of the slide rod 14 can be limited to prevent the user from using too much force when pulling the knob 15, causing the slide rod 14 to disengage from the inside of the rotating rod 6. By setting the second spring 20, when the user pulls the knob 15 to drive the slide rod 14 to move outward, the second spring 20 begins to stretch. Then, when the insertion rod 16 needs to be reset, the force of the second spring 20 is used to drive the knob 15 to push the insertion rod 16 into the inside of the slot 17, which greatly saves manpower.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model 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. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam trap that is easy to maintain, comprising a steam trap body (1), a valve cover (2) being installed on the top of the steam trap body (1), a filter screen (3) being arranged inside the steam trap body (1), first shells (4) being fixed on both sides of the steam trap body (1), and second shells (5) being fixed on both sides of the filter screen (3), characterized in that: A rotating rod (6) is fixedly passed through the interior of the second shell (5), and an elliptical plate (7) is fixedly disposed at one end of the rotating rod (6); A locking mechanism for locking the filter screen (3) is installed inside the second shell (5).

2. A steam trap easy to maintain according to claim 1, characterized in that: The locking mechanism comprises a movable plate (8) which is slidably connected to both ends of the interior of the second shell (5); a clamping block (9) is fixed to one side of the movable plate (8); and a clamping groove (10) is provided at both ends of the first shell (4); the interior of the clamping groove (10) is slidably connected to the clamping block (9).

3. A steam trap easy to maintain according to claim 2, characterized in that: Limiting rods (11) are fixed at both ends of the interior of the second shell (5), and a limiting groove (12) is provided on the surface of the movable plate (8), and the interior of the limiting groove (12) is slidably connected to the surface of the limiting rod (11).

4. The steam trap easy to maintain according to claim 1, characterized in that: A first spring (13) is fixed at both ends inside the second shell (5), and the other end of the first spring (13) is fixed to the moving plate (8).

5. The steam trap easy to maintain according to claim 1, characterized in that: The interior of the rotating rod (6) is slidably connected to a sliding rod (14), the other end of the sliding rod (14) is fixed with a knob (15), a plug rod (16) is fixed to a side of the knob (15) close to the second shell (5), a slot (17) is provided on one side of the second shell (5), and the interior of the slot (17) is sleeved with the plug rod (16).

6. The steam trap easy to maintain according to claim 1, characterized in that: Slide grooves (18) are provided on both sides of the rotating rod (6), and a slider (19) is slidably connected inside the slide groove (18), and the other end of the slider (19) is fixed to the slide rod (14).

7. The steam trap easy to maintain according to claim 1, characterized in that: A second spring (20) is fixed inside the rotating rod (6), and the other end of the second spring (20) is fixed to the sliding rod (14).

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