High-sealing gate valve with protective structure

Abstract

The utility model discloses a high-sealing gate valve with a protective structure, which comprises a gate valve body, a valve cover connected with the upper end of the gate valve body, a valve rod connected with the middle of the valve cover, and a valve plate connected with the lower side of the valve rod. The second sealing ring is connected to the middle side of the interior of the valve cover, the outer side of the valve cover is connected with a sealing structure, and the sealing structure comprises a connection limiting rod and a first sealing ring; the first protection plate is mounted on the rear side of the gate valve body, a second protection plate is arranged on the front side of the first protection plate, a limiting structure is mounted on the front side of the lower end of the first protection plate and comprises a connecting fixing block and a fixing mounting rod, and the connecting fixing block is fixedly mounted on the front side of the lower end of the first protection plate. According to the high-sealing gate valve with the protection structure, the limiting structure is arranged, the protection assembly can be installed, so that the gate valve is protected, and the sealing assembly is arranged, so that the part between the gate valve body and the valve element of the gate valve can be sealed.

Description

TECHNICAL FIELD

[0001] The utility model relates to high seal gate valve technical field, concretely is a high seal gate valve with protection structure. BACKGROUND

[0002] Gate valve refers to a kind of valve, the on-off of fluid is controlled by a gate plate. The movement direction of gate plate is perpendicular to the direction of fluid, and gate valve can only be fully opened and closed, and cannot be adjusted and throttled. The closing member (gate plate) of gate valve moves along the vertical direction of center line of passageway, and is usually used in pipeline as full opening or full closing cut-off device. Its use range is wide, such as:

[0003] Chinese patent authorized announcement No. CN222102790U discloses a novel corrosion-resistant high-seal gate valve, comprising a corrosion-resistant gate valve body, a protection assembly is arranged on the top of the corrosion-resistant gate valve body, and an adjusting assembly is arranged on the top of the protection assembly. By arranging the protection assembly, the mounting plate, the connecting plate and the first protection plate are arranged on the top of the corrosion-resistant gate valve body, so as to protect the inside of the adjusting rod. The stability is further enhanced by the limiting piece, the practicability and the working efficiency are improved, the protection of the gate valve body and the flow pipe is facilitated, the stability of the adjusting rod is improved, and the sealing performance is improved. By arranging the adjusting assembly, the valve plate can be stably adjusted by the adjusting disc, and the device can be disassembled and repaired by the first bolt, the second bolt and the fixing nut. Since the materials of the first connecting pipe and the second connecting pipe are Teflon, and the materials of the corrosion-resistant gate valve body, the first connecting flange and the second connecting flange are copper oxide, the corrosion resistance is greatly improved.

[0004] In combination with the existing scheme and actual production and processing, the current high-seal gate valve still has some problems, such as: when protecting the gate valve, the protection assembly arranged outside the adjusting rod protects the adjusting rod of the gate valve. Since only the adjusting rod is protected during use of the gate valve, the gate valve body is prone to impact, thereby reducing the service life of the gate valve. Therefore, the utility model provides a high-seal gate valve with protection structure to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-seal gate valve with protection structure to solve the problem that when protecting the gate valve, the protection assembly arranged outside the adjusting rod protects the adjusting rod of the gate valve, and since only the adjusting rod is protected during use of the gate valve, the gate valve body is prone to impact, thereby reducing the service life of the gate valve.

[0006] To achieve the above object, the utility model provides the following technical scheme: A high sealing gate valve with protection structure, including gate valve body, the upper end connection of valve cover, and the middle part of valve cover is connected with valve rod, and the downside of valve rod is connected with valve plate,

[0007] Further comprising:

[0008] Second sealing ring, its connection is in the inside middle side of valve cover, and the outside of valve cover is connected with sealing structure, the sealing structure includes the first sealing ring of link limit rod, and link limit rod is installed on the outside of valve cover, and the downside of valve cover is provided with first sealing ring,

[0009] First protection plate, its installation is in the back of gate valve body, and the front side of first protection plate is provided with second protection plate, the front side of the lower end of first protection plate is installed with limit structure, and limit structure includes connecting fixed block and fixed installation rod, the connecting fixed block is fixedly installed on the front side of the lower end of first protection plate, and the front end of connecting fixed block is connected with fixed installation rod.

[0010] Preferably, the outside of the valve plate is also provided with a sealing plate, and the sealing plate is connected to the gate valve body by fitting connection, and the sealing plate is connected to the valve plate by adhesive.

[0011] Preferably, the first sealing ring and the gate valve body are connected by clamping connection and play a sealing role between the gate valve body and the valve cover.

[0012] Preferably, the second sealing ring and the valve rod are connected by fitting connection.

[0013] Preferably, the rear end of the second protection plate is also fixedly connected with a connecting block, the rear side of the connecting block is fixedly installed with a link block, the outside of the link block is connected with a fixed rod, and the outside of the fixed rod is connected with a mounting block.

[0014] Preferably, the fixed installation rod and the connecting fixed block are connected by screw thread, and the vertical cross section shape of the connecting fixed block is "L" shaped structure.

[0015] Preferably, the mounting block and the link block are connected by clamping connection, and the link block and the connecting block are fixedly connected by welding.

[0016] Preferably, the mounting block and the fixed rod are connected by screw thread, and the mounting block and the first protection plate are fixedly connected by welding.

[0017] Compared with the prior art, the utility model has the advantages that: the high sealing gate valve with protection structure is provided with a limit structure, which can install the protection assembly, thereby protecting the gate valve, and is provided with a sealing structure, which can seal between the gate valve body and the valve core;

[0018] 1. The utility model discloses a first protection plate is installed in the rear side of the gate valve body through snap installation, and then the second protection plate is installed on the outside of the first protection plate, makes the second protection plate install on the upper side of the connecting fixed block, rotates the fixed installation rod, makes the fixed installation rod screw connection on the front side of the connecting fixed block, thereby makes the fixed installation rod move upwards, and then makes the fixed installation rod screw connection on the lower side of the second protection plate, convenient for the installation between the first protection plate and the second protection plate, thereby convenient for the protection of the gate valve body.

[0019] 2. The utility model discloses the upper side of the gate valve body is installed through the valve cover, makes the valve cover drive second sealing ring adhere to the outside of valve stem, thereby makes the first sealing ring snap installation on the upper end of the gate valve body, convenient for the sealing between the valve cover and valve stem and the valve cover and the gate valve body, and then the sealing plate of valve plate outside is set and is connected with the inner wall of the gate valve body, convenient for the sealing between the valve plate and the gate valve body.

[0020] 3. The utility model discloses the connecting block is driven to the rear side movement through the second protection plate, makes the connecting block drive the interface block snap installation in the inside of the installation block, rotates the fixed rod, makes the fixed rod screw connection on the middle part outside of the installation block, thereby makes the fixed rod move to the inside, and then makes the fixed rod screw connection on the outside of the interface block, convenient for further assembling between the first protection plate and the second protection plate. DRAWINGS

[0021] Figure 1 It is the whole section structure schematic diagram of the utility model gate valve body and valve cover connection;

[0022] Figure 2 It is the utility model Figure 1 It is the enlarged structure schematic diagram of A place in the utility model;

[0023] Figure 3 It is the whole section structure schematic diagram of the utility model valve rod and valve plate connection;

[0024] Figure 4 It is the utility model Figure 3 It is the enlarged structure schematic diagram of B place in the utility model;

[0025] Figure 5 It is the whole section structure schematic diagram of the utility model first protection plate and second protection plate connection;

[0026] Figure 6 It is the utility model Figure 5 It is the enlarged structure schematic diagram of C place in the utility model.

[0027] In the figure: 1, gate valve body; 2, valve cover; 3, valve stem; 4, valve plate; 5, sealing plate; 6, first guard plate; 7, connecting fixed block; 8, connection limiting rod; 9, first sealing ring; 10, second sealing ring; 11, second guard plate; 12, fixed mounting rod; 13, mounting block; 14, connecting block; 15, connection block; 16, fixed rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-6 , the utility model provides a kind of technical scheme: a high sealing gate valve with protection structure, including, gate valve body 1, valve cover 2, valve stem 3, valve plate 4, sealing plate 5, first guard plate 6, connecting fixed block 7, connection limiting rod 8, first sealing ring 9, second sealing ring 10, second guard plate 11, fixed mounting rod 12, mounting block 13, connecting block 14, connection block 15 and fixed rod 16, when working, specifically as Figure 1 、 Figure 2 And Figure 3 It is shown that, by the valve cover 2 movably connected on the upper side of the gate valve body 1, the second sealing ring 10 fixedly arranged in the inside middle side of the valve cover 2, the first sealing ring 9 fixedly arranged at the lower end of the valve cover 2, the connection limiting rod 8 movably connected on the outside of the valve cover 2, manually placing the valve cover 2 on the upper side of the gate valve body 1, so that the valve cover 2 drives the first sealing ring 9 to be clamped and installed on the upper side of the gate valve body 1 under the action of gravity, so that the valve cover 2 drives the valve stem 3 to be installed in the inside of the gate valve body 1, and then the valve stem 3 drives the valve plate 4 to be installed on the inside lower side of the gate valve body 1, and the connection limiting rod 8 is screwed, so that the connection limiting rod 8 is threadedly connected on the outside of the valve cover 2 under the action of screwing, so that the connection limiting rod 8 moves downward under the action of the thread between the connection limiting rod 8 and the valve cover 2, and then the connection limiting rod 8 is threadedly connected on the outside of the upper end of the gate valve body 1 under the action of the downward movement of the connection limiting rod 8, and the second sealing ring 10 arranged in the inside of the valve cover 2 is fitted on the outside of the valve stem 3 and the first sealing ring 9 fixedly arranged on the lower side of the valve cover 2 is clamped and installed on the upper side of the gate valve body 1, so as to seal the valve cover 2 and the valve stem 3 and the valve cover 2 and the gate valve body 1, and then the sealing plate 5 arranged on the outside of the valve plate 4 is connected to the inner wall of the gate valve body 1, so as to seal the valve plate 4 and the gate valve body 1.

[0030] Specifically as Figure 1, Figure 3 and Figure 4 As shown, a first protective plate 6 is provided at the rear end of the gate valve body 1. A connecting and fixing block 7 is fixedly provided at the lower middle side of the first protective plate 6. A fixing rod 12 is movably connected to the front end of the connecting and fixing block 7. A second protective plate 11 is movably connected to the upper end of the fixing rod 12. The first protective plate 6 is manually engaged and installed on the rear side of the gate valve body 1. Then, the second protective plate 11 is manually installed on the front side of the gate valve body 1, so that the second protective plate 11 slides backward on the upper side of the first protective plate 6. Under the backward sliding action of the second protective plate 11, the second protective plate... 11 is engaged on the front side of the gate valve body 1. Then, the fixing rod 12 is turned so that the fixing rod 12 is threaded on the front side of the connecting fixing block 7 under the turning action. Thus, under the thread action between the fixing rod 12 and the connecting fixing block 7, the fixing rod 12 moves upward. Then, under the upward movement of the fixing rod 12, the fixing rod 12 is threaded on the lower side of the second protective plate 11, which facilitates the assembly between the second protective plate 11 and the first protective plate 6, thereby facilitating the protection of the gate valve body 1.

[0031] Specific examples Figure 1 , Figure 5 and Figure 6 As shown, a connecting block 14 is fixedly installed on the rear side of the upper end of the second protective plate 11, a connecting block 15 is fixedly installed on the rear side of the connecting block 14, and a fixed rod 16 is movably connected to the outer side of the middle part of the connecting block 15. When the gate valve body 1 is engaged with the second protective plate 11, the second protective plate 11 causes the connecting block 14 to move rearward. Under the action of the connecting block 14 moving rearward, the connecting block 14 causes the connecting block 15 to engage with the inside of the mounting block 13. Then, the fixed rod 16 installed on the outer side of the middle part of the mounting block 13 is screwed, so that the fixed rod 16 is threaded on the outer side of the middle part of the mounting block 13. Under the action of the thread between the fixed rod 16 and the mounting block 13, the fixed rod 16 moves inward. Under the action of the fixed rod 16 moving inward, the fixed rod 16 is threaded on the outer side of the connecting block 15. This facilitates the limiting of the connection between the connecting block 15 and the fixed rod 16, thereby facilitating the further assembly of the second protective plate 11 and the first protective plate 6.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high sealing gate valve with a protection structure, comprising a gate valve body (1), a valve cover (2) connected to the upper end of the gate valve body (1), a valve rod (3) connected to the middle part of the valve cover (2), and a valve plate (4) connected to the lower side of the valve rod (3). characterized in that Further comprising: a second sealing ring (10) connected to the inner middle side of the valve cover (2), and a sealing structure connected to the outer side of the valve cover (2), the sealing structure comprising a connecting limiting rod (8) and a first sealing ring (9), the connecting limiting rod (8) being installed on the outer side of the valve cover (2), and the first sealing ring (9) being arranged on the lower side of the valve cover (2); a first protection plate (6) installed on the rear side of the gate valve body (1), a second protection plate (11) arranged on the front side of the first protection plate (6), a limiting structure comprising a connecting fixed block (7) and a fixed installation rod (12) installed on the front side of the lower end of the first protection plate (6), and the connecting fixed block (7) being fixedly installed on the front side of the lower end of the first protection plate (6), and the fixed installation rod (12) being connected to the front end of the connecting fixed block (7).

2. A high sealing gate valve with a protection structure according to claim 1, characterized in that: The outer side of the valve plate (4) is further provided with a sealing plate (5), and the sealing plate (5) is connected to the gate valve body (1) in a fit connection, and the sealing plate (5) is connected to the valve plate (4) through an adhesive.

3. A high sealing gate valve with a protection structure according to claim 1, characterized in that: The first sealing ring (9) is connected to the gate valve body (1) in a clamping connection and plays a sealing role between the gate valve body (1) and the valve cover (2).

4. The high seal gate valve with a protection structure according to claim 1, characterized in that: The second sealing ring (10) is connected to the valve rod (3) in a fit connection.

5. A high seal gate valve with a protection structure according to claim 1, characterized in that: The rear end of the second protection plate (11) is further fixedly connected with a connecting block (14), the rear side of the connecting block (14) is fixedly installed with a connecting block (15), the outer side of the connecting block (15) is connected with a fixed rod (16), the outer side of the fixed rod (16) is connected with an installation block (13).

6. A high seal gate valve with a protection structure according to claim 1, characterized in that: The fixed installation rod (12) is connected to the connecting fixed block (7) in a threaded connection, and the vertical cross-section shape of the connecting fixed block (7) is an "L" shaped structure.

7. A high seal gate valve with a protection structure according to claim 5, characterized in that: The installation block (13) is connected to the connecting block (15) in a clamping connection, and the connecting block (15) is fixedly connected to the connecting block (14) in a welding connection.

8. A high seal gate valve with a protection structure according to claim 7, characterized in that: The installation block (13) is connected to the fixed rod (16) in a threaded connection, and the installation block (13) is fixedly connected to the first protection plate (6) in a welding connection.

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