Self-lubricating gate valve

Abstract

The utility model relates to the technical field of gate valves, and discloses a self-lubricating gate valve which comprises a valve body, and a self-lubricating mechanism is arranged on the upper side wall of the valve body. The self-lubricating mechanism comprises a storage box, two connecting pipes and a measuring column, the top of the right side wall of the storage box is communicated and connected with a feeding pipe, a storage cavity is formed in the storage box, the bottom wall of the storage box is communicated and connected with an outer cylinder, an inner cylinder is arranged in the outer cylinder, and the outer side of the inner cylinder is connected into the storage box in a penetrating mode. According to the self-lubricating gate valve, the self-lubricating mechanism is arranged, so that the problem that normal operation of equipment is affected due to the fact that the operation of the gate valve is unstable, clamping stagnation, jamming or unsmooth operation possibly occurs can be solved; therefore, the sealing performance is effectively improved, the friction and abrasion are reduced, the operating force is reduced, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a self-lubricating gate valve. Background Art

[0002] A gate valve is a commonly used industrial valve used to control the flow of fluid in a pipeline, especially to cut off or regulate the flow of fluid. Its name comes from the valve plate that moves inside its valve body, which is usually called a gate or a gate. The gate can move perpendicular to the direction of the fluid, thereby fully opening or fully closing the pipeline, or regulating the flow of the fluid at different degrees of opening.

[0003] When gate valves are used for a long time, due to increased wear and long-term consumption, gate valves may require more frequent maintenance, including cleaning, lubrication and replacement of parts, which increases the maintenance cost and downtime of the equipment, resulting in unstable operation of the gate valve, which may cause stagnation, jamming or unsmooth operation, affecting the normal operation of the equipment. When using a gate valve, the flow is too large, but the gate valve can only be completely closed, and additional equipment or control systems may be required to adjust the flow, thereby increasing energy consumption and making it impossible to effectively and accurately control the flow, resulting in excessive energy consumption. Utility Model Content

[0004] The main purpose of the utility model is to provide a self-lubricating gate valve, which can effectively solve the problems that cause the gate valve to operate unstable, possibly get stuck, get stuck or operate unsmoothly, affect the normal operation of the equipment and make it impossible to effectively and accurately control the flow rate, thus leading to excessive energy consumption.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-lubricating gate valve, comprising a valve body, wherein the upper side wall of the valve body is provided with a self-lubricating mechanism;

[0006] The self-lubricating mechanism includes: a storage box and two connecting tubes and a measuring column. The top of the right side wall of the storage box is connected to a feed tube, a storage cavity is arranged inside the storage box, the bottom wall of the storage box is connected to an outer cylinder, an inner cylinder is arranged inside the outer cylinder, the outer side of the inner cylinder is connected to the inside of the storage box, the bottom of the storage box is connected to connecting tubes, the bottom ends of the two connecting tubes pass through the inside of the outer cylinder and are connected to the inner cylinder, the measuring column is arranged inside the storage cavity, the top of the measuring column is fixedly connected to a fixing plate, the top wall of the fixing plate is fixedly connected to a pull ring, a sealing ring is fixedly connected to the left top wall of the storage box, and the fixing plate is arranged inside the sealing ring.

[0007] Furthermore, the top wall of the valve body is fixedly connected to a support block, the top of the support block is fixedly connected to a connecting body, the interior of the support block is fixedly connected to a guide plate, the interior of the guide plate is penetrated by a rotating rod, and the bottom of the outer cylinder is penetrated and connected to the interior of the connecting body.

[0008] Furthermore, the outer side of the rotating rod is arranged inside the measuring column, the top end of the rotating rod is fixedly connected to the handle, the bottom end of the rotating rod is fixedly connected to the gear, the inside of the supporting block is provided with a rack, and the gear is meshed with the two racks.

[0009] Furthermore, the bottoms of the two racks are fixedly connected with engaging blocks, the bottoms of the two engaging blocks are fixedly connected with connecting blocks, the inner side walls of the two connecting blocks are fixedly connected with valve plates, and the valve plates are arranged inside the valve body.

[0010] Furthermore, a valve base is fixedly connected to the inner bottom wall of the valve body, and guide rail grooves are provided on both left and right sides of the inner part of the valve base.

[0011] Furthermore, a semicircular groove is provided on the other side of the two valve plates, and a slider is fixedly connected to the bottom of the two valve plates, and the slider is slidably connected to the inside of the guide rail groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model can solve the problem of unstable operation of the gate valve, possible jamming, deadlock or non-smooth operation, which affects the normal operation of the equipment by setting a self-lubricating mechanism. By pouring the lubricating oil from the feed pipe on the storage box into the storage chamber, the lubricating oil will first be transferred downward through the provided outer cylinder, and then flow into the upper side wall of the guide plate and then flow to the left and right side walls to add lubricating oil to the valve base and valve plate and the connecting block at the bottom to keep the lubrication of the valve plate and the valve base at the bottom to reduce wear. The lubricating oil in the other part of the storage chamber will be transferred to the outer cylinder through the connecting pipe to supplement the rotating rod to improve the stability during operation. When supplementing, it will flow into the gear and rack through the rotating rod to prevent jamming, deadlock or non-smooth operation, thereby effectively improving its sealing performance, reducing friction and wear, reducing operating force, extending service life, and reducing maintenance costs.

[0014] 2. The gear, rack, coupling block, connecting block and valve plate can solve the problem of inability to effectively and accurately control the flow rate, thereby causing excessive energy consumption. By rotating the rotating rod, the gear will be driven to rotate, and the rotating gear will mesh with the two racks to drive the rack to slide left and right inside the support block. During sliding, the bottom coupling block of the rack is connected to the connecting block, and is connected to the valve plate through the inner wall of the connecting block, and drives the slider on the bottom of the valve plate to slide in the guide groove inside the valve base to improve the stability of the activity, and slide left and right to achieve the effect of opening and closing. When opening, the semicircular grooves on the two valve plates will form a circle to increase the flow rate during delivery. During adjustment, the two valve plates are slid left and right to drive the two semicircular grooves to shrink the holes, so as to accurately control the flow rate and avoid excessive delivery, which leads to a lot of waste, thereby effectively improving the flexible flow adjustment, applicability and performance of the valve to reduce excessive energy consumption.

[0015] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a self-lubricating gate valve proposed by the utility model;

[0017] Figure 2 This is an internal cross-sectional structural diagram of a self-lubricating gate valve proposed by the utility model;

[0018] Figure 3 This is a structural diagram of a self-lubricating mechanism of a self-lubricating gate valve proposed by the utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the internal structure of a self-lubricating mechanism of a self-lubricating gate valve proposed by the utility model;

[0020] Figure 5 This is a structural diagram of the outer cylinder of a self-lubricating gate valve proposed by the utility model;

[0021] Figure 6 This is a valve plate structure diagram of a self-lubricating gate valve proposed by the utility model;

[0022] Figure 7 The utility model is a schematic diagram of a slider of a self-lubricating gate valve.

[0023] Legend:

[0024] 1. Valve body; 2. Self-lubricating mechanism; 201. Storage box; 202. Feed pipe; 203. Outer cylinder; 204. Connecting pipe; 205. Inner cylinder; 206. Measuring column; 207. Pull ring; 208. Fixed disk; 209. Storage chamber; 210. Sealing ring; 3. Connecting body; 4. Support block; 5. Guide plate; 6. Rotating rod; 7. Handle; 8. Valve base; 9. Gear; 10. Rack; 11. Engagement block; 12. Connecting block; 13. Valve plate; 14. Semicircular groove; 15. Slider; 16. Guide groove. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 4 As shown: a self-lubricating gate valve, comprising a valve body 1, the upper side wall of the valve body 1 is provided with a self-lubricating mechanism 2;

[0027] The self-lubricating mechanism 2 includes: a storage box 201 and two connecting pipes 204 and a measuring column 206. The top of the right side wall of the storage box 201 is connected to a feed pipe 202, through which the lubricant is poured into the interior. A storage cavity 209 is arranged inside the storage box 201, and the lubricant and lubricating oil are stored through the storage cavity 209. The bottom wall of the storage box 201 is connected to an outer cylinder 203, and the outer cylinder 203 is used to protect the internal device and transfer the lubricating oil in the storage cavity 209 to the bottom to supplement the device inside the valve body 1. An inner cylinder 205 is arranged inside the outer cylinder 203, and the inner cylinder 205 is divided into two channels inside the inner cylinder 205 to supplement different internal devices. The outer side of the inner cylinder 205 is connected to the interior of the storage box 201, and the bottom of the storage box 201 is connected to the connecting Take over the pipe 204, the bottom ends of the two connecting pipes 204 pass through the interior of the outer cylinder 203 and are connected to the inner cylinder 205, and part of the lubricating oil is transferred to the outer cylinder 203 through the connecting pipe 204. The measuring column 206 is arranged inside the storage cavity 209, and the internal lubricating oil of the storage cavity 209 is measured and recorded by the arranged measuring column 206. The top of the measuring column 206 is fixedly connected with a fixed disk 208, and the top wall of the fixed disk 208 is fixedly connected with a pull ring 207. The set pull ring 207 can be used to facilitate the removal of the measuring column 206, to observe the oil residue marks sticking to the measuring column 206, and to infer the remaining lubricating oil in the storage cavity 209. A sealing ring 210 is fixedly connected to the left top wall of the storage box 201, and the fixed disk 208 is arranged inside the sealing ring 210. The left side of the storage box 201 is sealed by the fixed disk 208 and the sealing ring 210 to prevent leakage.

[0028] like Figure 1 - Figure 5 As shown, the top wall of the valve body 1 is fixedly connected with a support block 4, and the internal device is supported and connected to the top device by the support block 4. The top of the support block 4 is fixedly connected with a connector 3, and the interior of the support block 4 is fixedly connected with a guide plate 5, which is used to guide the lubricating oil transferred from the outer cylinder 203 to flow to the left and right side walls. The interior of the guide plate 5 is penetrated by a rotating rod 6, and the bottom of the rotating rod 6 is supported and fixed by the guide plate 5. The bottom of the outer cylinder 203 is penetrated and connected to the interior of the connector 3.

[0029] like Figure 1 - Figure 6 As shown, the outer side of the rotating rod 6 is arranged in the interior of the measuring column 206, and the rotating rod 6 is arranged in the measuring column 206 to protect the rotating rod 6 and transfer the lubricating oil to the rotating rod 6. The top end of the rotating rod 6 is fixedly connected to the handle 7, and the rotating rod 6 is driven to rotate by twisting the handle 7. The bottom end of the rotating rod 6 is fixedly connected to the gear 9, and the inside of the support block 4 is provided with a rack 10. The gear 9 and the two racks 10 are meshed with each other, and the gear 9 is driven to rotate to mesh with the rack 10 to drive the rack 10 to slide left and right inside the support block 4.

[0030] like Figure 1 - Figure 7 As shown, the bottom of the two racks 10 is fixedly connected with a coupling block 11, and the bottom of the two coupling blocks 11 is fixedly connected with a connecting block 12. The coupling block 11 on the sliding rack 10 is connected to the connecting block 12 and drives the connecting block 12 to slide. The inner side walls of the two connecting blocks 12 are fixedly connected with a valve plate 13, and the valve plate 13 is arranged inside the valve body 1. The valve plate 13 is driven to slide inside the valve body 1 by the connecting block 12. A valve base 8 is fixedly connected to the inner bottom wall of the valve body 1, and the bottom of the valve plate 13 is supported and connected by the arranged valve base 8. Guide rail grooves 16 are provided on the left and right sides of the interior of the valve base 8.

[0031] like Figure 1 - Figure 7 As shown, a semicircular groove 14 is provided on the other side of the two valve plates 13. The two valve plates 13 slide forward and backward inside the valve body 1 to drive the semicircular groove 14 to open and close. The relative sliding of the semicircular groove 14 can adjust the size of the hole during transportation and adjust the precise transportation. A slider 15 is fixedly connected to the bottom of the two valve plates 13. The slider 15 is slidably connected to the inside of the guide rail groove 16. The slider 15 is set to slide inside the guide rail groove 16 to achieve the function of limiting and supporting, so as to prevent displacement during sliding.

[0032] It should be noted that the utility model is a self-lubricating gate valve, which firstly pours lubricating oil from the feed pipe 202 on the storage box 201 into the storage chamber 209 .

[0033] First, the lubricating oil will be transferred downward through the outer cylinder 203, and after flowing into the upper side wall of the guide plate 5, it will flow to the left and right side walls to add lubricating oil to the valve base 8, valve plate 13 and connecting block 12 at the bottom to keep the valve plate 13 and valve base 8 lubricated at the bottom to reduce wear. The lubricating oil in the other part of the storage chamber 209 will be transferred to the outer cylinder 203 through the connecting pipe 204 to replenish the rotating rod 6 to improve the stability during operation. When replenishing, it will flow into the gear 9 and the rack 10 through the rotating rod 6 to prevent jamming, blocking or unsmooth operation. Before replenishing the lubricant, the pull ring 207 will be pulled to drive the fixed disk 208 and the measuring column 206 to be pulled out from the sealing ring 210 on the left side of the storage box 201, and the oil residue mark sticking to the measuring column 206 will be observed to see how much is left in the storage chamber 209, so as to replenish the interior of the storage chamber 209 accordingly.

[0034] When transporting gas and liquid, after rotating the rotating rod 6, the gear 9 will be driven to rotate, and the rotating gear 9 will mesh with the two racks 10 to drive the rack 10 to slide left and right inside the support block 4. When sliding, the bottom engaging block 11 of the rack 10 is connected with the connecting block 12, and is connected to the valve plate 13 through the inner wall of the connecting block 12, and drives the slider 15 on the bottom of the valve plate 13 to slide in the guide groove 16 inside the valve base 8 to improve the stability of the activity, and slide left and right to achieve the effect of opening and closing. When opening, the semicircular grooves 14 on the two valve plates 13 will form a circle correspondingly to increase the flow rate during transportation. When adjusting, the two valve plates 13 slide left and right to drive the two semicircular grooves 14 to shrink the holes, so as to accurately control the flow rate and avoid excessive transportation, which leads to a lot of waste.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-lubricating gate valve, comprising a valve body (1), characterized in that: The upper side wall of the valve body (1) is provided with a self-lubricating mechanism (2); The self-lubricating mechanism (2) comprises: a storage box (201), two connecting pipes (204) and a measuring column (206); the top of the right side wall of the storage box (201) is connected to a feed pipe (202); a storage chamber (209) is provided inside the storage box (201); the bottom wall of the storage box (201) is connected to an outer cylinder (203); an inner cylinder (205) is provided inside the outer cylinder (203); the outer side of the inner cylinder (205) penetrates and is connected to the inside of the storage box (201); the bottom of the storage box (201) is connected to the outer cylinder (203); Both are connected with connecting tubes (204), the bottom ends of the two connecting tubes (204) pass through the interior of the outer tube (203) and are connected with the inner tube (205), the measuring column (206) is arranged inside the storage cavity (209), the top of the measuring column (206) is fixedly connected with a fixing plate (208), the top wall of the fixing plate (208) is fixedly connected with a pull ring (207), and the left top wall of the storage box (201) is fixedly connected with a sealing ring (210), and the fixing plate (208) is arranged inside the sealing ring (210).

2. A self-lubricating gate valve according to claim 1, characterized in that: The top wall of the valve body (1) is fixedly connected to a support block (4), the top of the support block (4) is fixedly connected to a connecting body (3), the interior of the support block (4) is fixedly connected to a guide plate (5), the interior of the guide plate (5) is penetrated by a rotating rod (6), and the bottom of the outer cylinder (203) is penetrated and connected to the interior of the connecting body (3).

3. A self-lubricating gate valve according to claim 2, characterized in that: The outer side of the rotating rod (6) is arranged inside the measuring column (206), the top end of the rotating rod (6) is fixedly connected to the handle (7), the bottom end of the rotating rod (6) is fixedly connected to a gear (9), and racks (10) are arranged inside the supporting blocks (4), and the gears (9) and the two racks (10) are meshed.

4. A self-lubricating gate valve according to claim 3, characterized in that: The bottoms of the two racks (10) are fixedly connected to a coupling block (11), the bottoms of the two coupling blocks (11) are fixedly connected to a coupling block (12), the inner side walls of the two coupling blocks (12) are fixedly connected to a valve plate (13), and the valve plate (13) is arranged inside the valve body (1).

5. A self-lubricating gate valve according to claim 4, characterized in that: A valve base (8) is fixedly connected to the inner bottom wall of the valve body (1), and guide rail grooves (16) are provided on both left and right sides of the inner side of the valve base (8).

6. A self-lubricating gate valve according to claim 4, characterized in that: A semicircular groove (14) is provided on the other side of the two valve plates (13), and a slider (15) is fixedly connected to the bottom of the two valve plates (13), and the slider (15) is slidably connected inside the guide rail groove (16).

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