CN213271084U

CN213271084U - Groove type soft sealing gate valve

Info

Publication number: CN213271084U
Application number: CN202022260447.6U
Authority: CN
Inventors: 洪冰冰; 洪祺开; 洪敏志
Original assignee: BEIJING GUANLONG VALVE FACTOR
Current assignee: BEIJING GUANLONG VALVE FACTOR
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-05-25
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to a slot type soft sealing gate valve technical field just discloses a slot type soft sealing gate valve, including the gate valve body, the last fixed surface of gate valve body installs the valve gap, the inside of valve gap is provided with the valve rod, the top threaded connection of valve rod has first valve-stem nut. This slot type soft sealing gate valve, cup joint a pressure spring through the upper end at the valve rod body of rod, its pressure spring's bottom contact gland, the roof of upper end contact valve gap inner chamber, its pressure spring's itself receives upper and lower clamping force always, produce pressure all the time to gland's upper surface, the phenomenon that gland appears becoming flexible in the long-time use of preventing, lead to appearing the seepage, the sealing ring of gate valve body upper surface is pegged graft at the inner wall of first annular seal recess and is supported and press its inside first sealing rubber circle simultaneously, improve the leakproofness of gate valve body and valve gap junction, the seepage phenomenon prevents to appear, the practicality of gate valve has been improved.

Description

Groove type soft sealing gate valve

Technical Field

The utility model relates to a slot type soft seal gate valve technical field specifically is a slot type soft seal gate valve.

Background

The groove type soft sealing gate valve is widely applied to water supply and drainage of fluid conveying pipelines, and pipeline engineering such as fire fighting, air conditioning, fuel gas, petroleum, chemical engineering, water treatment, municipal administration, shipbuilding and the like as a fluid control function. The groove type soft sealing gate valve has the advantages of being fast, simple, safe, reliable, free of limitation of installation sites, convenient to maintain pipelines and valves, capable of achieving vibration isolation and sound insulation, capable of overcoming imitation difference caused by different axes of pipeline connection in a certain angle range, and capable of solving the problems of expansion caused by temperature difference and contraction caused by cold difference.

Present slot type soft sealing gate valve is in long-time use, and not hard up phenomenon can appear in the inside gland that packs of its valve gap, leads to the condition that the seepage appears in the filler department of soft sealing gate valve, influences soft sealing gate valve's use, and the not strong condition of leakproofness can appear after the valve body of present slot type soft sealing gate valve and the junction of valve gap used for a long time again in addition, also can produce the seepage phenomenon.

Disclosure of Invention

An object of the utility model is to provide a soft sealing gate valve of slot type to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a groove type soft sealing gate valve comprises a gate valve body, wherein a valve cover is fixedly arranged on the upper surface of the gate valve body, a valve rod is arranged inside the valve cover, a first valve rod nut is connected to the top end of the valve rod in a threaded manner, a hand wheel is fixedly arranged on the outer side of the first valve rod nut, a second annular sealing groove is formed in the upper end inside the valve cover, a second sealing rubber ring is arranged inside the second annular sealing groove, a packing gland is fixedly arranged inside the valve cover, a pressure spring is sleeved on the upper end of a rod body of the valve rod, a fastening hole is formed in the right side of the bottom of the valve cover, a first annular sealing groove is formed in the bottom of the valve cover, a first sealing rubber ring is arranged inside the first annular sealing groove, a second valve rod nut is connected to the bottom end of the valve rod in a threaded manner, the annular groove is formed in the outer side of the left end of the gate valve body, the inner threaded hole is formed in the right side of the upper surface of the gate valve body, and the sealing ring is fixedly connected to the upper surface of the gate valve body.

Preferably, the number of the second annular sealing grooves is 2, the second annular sealing grooves are arranged on the inner wall of the upper port in the valve cover, and sealing rubber rings are arranged in the two second annular sealing grooves.

Preferably, the number of the fastening holes is a plurality, the fastening holes are respectively arranged at the edge of the bottom of the valve cover at equal intervals by taking the center of the bottom of the valve cover as a circle center.

Preferably, the number of the internal thread holes is the same as that of the fastening holes, and the internal thread holes are arranged at the edge of the upper surface of the gate valve body at equal intervals by taking the center of the upper surface of the gate valve body as a circle center.

Preferably, the number of the annular grooves is 2, and the annular grooves are respectively arranged on the outer side of the left end and the outer side of the right end of the gate valve body.

Preferably, the bottom end of the pressure spring contacts the upper surface of the packing gland, and the upper end of the pressure spring contacts the inner cavity top wall of the valve cover.

Compared with the prior art, the utility model provides a ditch slot type soft sealing gate valve. The method has the following beneficial effects:

this slot type soft sealing gate valve, cup joint a pressure spring through the upper end at the valve rod body of rod, its pressure spring's bottom contact gland, the roof of upper end contact valve gap inner chamber, its pressure spring's itself receives upper and lower clamping force always, produce pressure all the time to gland's upper surface, the phenomenon that gland appears becoming flexible in the long-time use of preventing, lead to appearing the seepage, the sealing ring of gate valve body upper surface is pegged graft at the inner wall of first annular seal recess and is supported and press its inside first sealing rubber circle simultaneously, improve the leakproofness of gate valve body and valve gap junction, the seepage phenomenon prevents to appear, the practicality of gate valve has been improved.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the upper end of the valve cover of the present invention;

fig. 3 is a schematic view of the sectional structure of the first annular sealing groove of the present invention.

In the figure: the gate valve comprises a gate valve body 1, a valve cover 2, a valve rod 3, a first valve rod nut 4, a hand wheel 5, a pressure spring 6, a packing gland 7, a second valve rod nut 8, an annular groove 9, a valve plate 10, a sealing ring 11, a first annular sealing groove 12, a first sealing rubber ring 13, a fastening hole 14, an internal threaded hole 15, a second annular sealing groove 16 and a second sealing rubber ring 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a groove type soft sealing gate valve comprises a gate valve body 1, a valve cover 2 is fixedly installed on the upper surface of the gate valve body 1, a valve rod 3 is arranged inside the valve cover 2, a first valve rod nut 4 is connected to the top end of the valve rod 3 in a threaded manner, a hand wheel 5 is fixedly installed on the outer side of the first valve rod nut 4, a second annular sealing groove 16 is formed in the upper end inside the valve cover 2, a second sealing rubber ring 17 is arranged inside the second annular sealing groove 16, the number of the second annular sealing grooves 16 is 2, the second annular sealing grooves are formed in the inner wall of an upper port inside the valve cover 2, sealing rubber rings are arranged inside the two second annular sealing grooves, a packing gland 7 is fixedly installed inside the valve cover 2, a pressure spring 6 is sleeved on the upper end of a rod body of the valve rod 3, the bottom end of the pressure spring 6 contacts with the upper surface of the packing gland, the right side of the bottom of the valve cover 2 is provided with fastening holes 14, the number of the fastening holes 14 is a plurality, the fastening holes are respectively arranged at the edge of the bottom of the valve cover 2 at equal intervals by taking the center of the bottom of the valve cover 2 as the center of a circle, the bottom of the valve cover 2 is provided with a first annular sealing groove 12, a first sealing rubber ring 13 is arranged inside the first annular sealing groove 12, the bottom end of the valve rod 3 is in threaded connection with a second valve rod nut 8, the bottom of the second valve rod nut 8 is fixedly provided with a valve plate 10, the outer side of the left end of the gate valve body 1 is provided with an annular groove 9, the number of the annular grooves 9 is 2, the fastening holes are respectively arranged at the outer sides of the left end and the right end of the gate valve body 1, the right side of the upper surface of the gate valve body 1 is provided with internal thread holes 15, the number of the, the upper surface of the gate valve body 1 is fixedly connected with a sealing ring 11, a pressure spring 6 is sleeved at the upper end of the rod body of the valve rod 3, the bottom end of the pressure spring 6 is contacted with a packing gland 7, the upper end of the pressure spring is contacted with the top wall of the inner cavity of the valve cover 2, the pressure spring 6 is always subjected to upper and lower clamping forces, pressure is always generated on the upper surface of the packing gland 7, the phenomenon that the packing gland 7 is loosened in the long-time use process is prevented, leakage is caused, meanwhile, the sealing ring 11 on the upper surface of the gate valve body 1 is inserted into the inner wall of the first annular sealing groove 12 and is abutted against the first sealing rubber ring 13 inside the first annular sealing groove, the sealing performance of the connection part of the gate valve body 1 and the valve cover.

In the actual operation process, when the device is used, the upper end of the rod body of the valve rod 3 is sleeved with the pressure spring 6, the bottom end of the pressure spring 6 is contacted with the packing gland 7, the upper end of the pressure spring is contacted with the top wall of the inner cavity of the valve cover 2, the pressure spring 6 is always subjected to upper and lower clamping forces, pressure is always generated on the upper surface of the packing gland 7, the phenomenon that the packing gland 7 is loosened in the long-time use process and leakage is caused is prevented, meanwhile, the sealing ring 11 on the upper surface of the gate valve body 1 is inserted into the inner wall of the first annular sealing groove 12 and abuts against the first sealing rubber ring 13 in the first annular sealing groove, the sealing performance of the connection part of the gate valve body 1 and the valve cover is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a slot type soft seal gate valve, includes gate valve body (1), its characterized in that: the gate valve comprises a gate valve body (1), a valve cover (2) is fixedly installed on the upper surface of the gate valve body (1), a valve rod (3) is arranged inside the valve cover (2), a first valve rod nut (4) is connected to the top end of the valve rod (3) in a threaded mode, a hand wheel (5) is fixedly installed on the outer side of the first valve rod nut (4), a second annular sealing groove (16) is formed in the upper end of the inside of the valve cover (2), a second sealing rubber ring (17) is arranged inside the second annular sealing groove (16), a packing gland (7) is fixedly installed inside the valve cover (2), a pressure spring (6) is sleeved at the upper end of a rod body of the valve rod (3), a fastening hole (14) is formed in the right side of the bottom of the valve cover (2), a first annular sealing groove (12) is formed in the bottom of the valve cover (2), a first sealing rubber ring (, the bottom threaded connection of valve rod (3) has second valve rod nut (8), the bottom fixed mounting of second valve rod nut (8) has valve plate (10), annular groove (9) have been seted up in the left end outside of gate valve body (1), internal thread hole (15) have been seted up on the upper surface right side of gate valve body (1), the last fixed surface of gate valve body (1) is connected with sealing ring (11).

2. The grooved soft seal gate valve of claim 1 wherein: the number of the second annular sealing grooves (16) is 2, the second annular sealing grooves are arranged on the inner wall of the upper port in the valve cover (2), and sealing rubber rings are arranged in the two second annular sealing grooves.

3. The grooved soft seal gate valve of claim 1 wherein: the number of the fastening holes (14) is a plurality, the fastening holes are respectively arranged at the edge of the bottom of the valve cover (2) at equal intervals by taking the center of the bottom of the valve cover (2) as the center of a circle.

4. The grooved soft seal gate valve of claim 1 wherein: the number of the internal thread holes (15) is the same as that of the fastening holes (14), and the internal thread holes are arranged at the edge of the upper surface of the gate valve body (1) at equal intervals by taking the center of the upper surface of the gate valve body (1) as a circle center.

5. The grooved soft seal gate valve of claim 1 wherein: the number of the annular grooves (9) is 2, and the annular grooves are respectively arranged on the outer side of the left end and the outer side of the right end of the gate valve body (1).

6. The grooved soft seal gate valve of claim 1 wherein: the bottom end of the pressure spring (6) is in contact with the upper surface of the packing gland (7), and the upper end of the pressure spring (6) is in contact with the top wall of the inner cavity of the valve cover (2).