Sealing cover of mortar mixing tank

Abstract

The utility model discloses a mortar mixing tank sealing cover which comprises a cover body, the lower portion of the cover body is connected with a plug body, the cover body and the plug body are provided with communicated pressure relief channels, the side edge of the cover body is provided with a standby pressure relief channel, one end of the standby pressure relief channel is communicated with the pressure relief channels, and the other end of the standby pressure relief channel is communicated with a movement cavity channel. And the moving cavity channel is communicated with the threaded connecting hole, a sealing assembly is installed in the moving cavity channel, a jacking screw is installed in the threaded connecting hole, and the jacking screw can jack up the sealing assembly to seal the standby pressure relief channel. According to the sealing cover, the standby pressure relief channel communicated with the original pressure relief channel is formed in one side of the original pressure relief channel, sealing of the standby pressure relief channel can be achieved through cooperation of the jacking screw and the sealing assembly, it is guaranteed that the pressure intensity in the mortar mixing tank is stable, and when a pressure relief valve on the sealing cover cannot work, pressure can be relieved in time through the standby pressure relief channel; the normal and safe work of the mortar mixing tank is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing tanks, in particular to a sealing cover for a mortar mixing tank. Background Art

[0002] Waterjet cutting is a cold cutting technology based on the application of ultra-high pressure water jet. The principle of waterjet cutting is to use ultra-high pressure technology to pressurize ordinary tap water to a pressure of 100-400Mpa, and then spray it through a gem nozzle with an inner hole diameter of about 0.3mm to form a high-speed jet with a speed of about 800-1000m / s, commonly known as a water arrow. The water arrow has high energy and can be used to cut soft basic materials. If an appropriate amount of water jet abrasive is added to the water arrow, it can be used to cut almost all soft and hard materials. When using waterjet cutting, the abrasive and water need to be mixed in a mortar mixing tank first, and then pressurized by high pressure and ejected through the gun head for cutting. However, when the existing mortar mixing tank is in use, only a pressure relief valve is installed on the top of the tank cover, and no other pressure relief channels are set. When there is a problem with the pressure relief valve, it cannot be relieved in time, causing danger. Utility Model Content

[0003] The purpose of the utility model is to provide a sealing cover for a mortar mixing tank to solve the problems mentioned in the background technology. To achieve the above purpose, the utility model provides the following technical solutions: a sealing cover for a mortar mixing tank, comprising a cover body, a plug body is connected to the bottom of the cover body, a connected pressure relief channel is opened on the cover body and the plug body, a spare pressure relief channel is opened on the side of the cover body, one end of the spare pressure relief channel is connected to the pressure relief channel, and the other end is connected to the movement cavity, the movement cavity is connected to the threaded connection hole, a sealing assembly is installed inside the movement cavity, a tightening screw is installed inside the threaded connection hole, the tightening screw can tighten the sealing assembly to seal the spare pressure relief channel, the sealing assembly includes a sealing member, the sealing member is installed inside the movement cavity, one end of a spring is connected to both sides of the middle of the sealing member, the other end of the spring is connected to the wall of the movement cavity, the sealing member can move forward and backward along the movement cavity, and one end of the sealing member can extend into the spare pressure relief channel and make sealing contact.

[0004] Preferably, the sealing member comprises a limiting plate, a connecting block is installed in the middle of one side of the limiting plate, a circular groove is opened on the other side, the middle of the connecting block is connected to the sealing end, mounting grooves are opened on both sides of the connecting block, one end of the spring is installed inside the mounting groove, and an arc-shaped strip hole is opened on the limiting plate.

[0005] Preferably, a limiting block is installed on the side of the limiting plate, a limiting groove is opened inside the movement cavity, and the limiting block is located inside the limiting groove and can slide along the limiting groove.

[0006] Preferably, two limit blocks are provided, which are symmetrically distributed on both sides of the limit plate.

[0007] Preferably, a sealing groove is provided at the connection between the plug body and the cover body, and a sealing ring is installed inside the sealing groove.

[0008] Preferably, a plurality of fixing connection holes for installing fixing screws are provided on the side of the cover body, and the fixing connection holes and the threaded connection holes are evenly distributed along the circumference of the cover body.

[0009] The technical effects and advantages of the utility model are as follows: the sealing cover is provided with a connected spare pressure relief channel on one side of the original pressure relief channel, and the sealing of the spare pressure relief channel can be achieved through the cooperation of the tightening screws and the sealing assembly, thereby ensuring the stable pressure inside the mortar mixing tank; when the pressure relief valve on the sealing cover fails to work, the pressure can be relieved in time through the spare pressure relief channel, thereby ensuring the normal and safe operation of the mortar mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front side view of the utility model;

[0011] Figure 2 It is a rear side view of the utility model;

[0012] Figure 3 It is the front view of the utility model;

[0013] Figure 4 for Figure 3 The cross-section along the BB direction;

[0014] Figure 5 This is a schematic diagram of the sealing component structure of the utility model.

[0015] In the figure, 1. cover body; 2. plug body; 3. pressure relief channel; 4. spare pressure relief channel; 5. movement cavity; 6. threaded connection hole; 7. spring; 8. limit plate; 9. connection block; 10. sealing end; 11. installation groove; 12. arc-shaped strip hole; 13. limit block; 14. sealing groove; 15. fixed connection hole. DETAILED DESCRIPTION

[0016] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below in conjunction with specific diagrams. In the description of the utility model, it should be noted that, unless otherwise clearly stipulated 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, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two components.

[0017] Example

[0018] like Figure 1-Figure 4 A sealing cover for a mortar mixing tank is shown, comprising a cover body 1, a plug body 2 is connected to the bottom of the cover body 1, a pressure relief channel 3 is opened on the cover body 1 and the plug body 2, a spare pressure relief channel 4 is opened on the side of the cover body 2, one end of the spare pressure relief channel 4 is connected to the pressure relief channel 3, and the other end is connected to a movement cavity 5, the movement cavity 5 is connected to a threaded connection hole 6, a sealing component is installed inside the movement cavity 5, a tightening screw is threadedly connected inside the threaded connection hole 6, and the tightening screw can tighten the sealing component to seal the spare pressure relief channel 4,

[0019] like Figure 4 and Figure 5 As shown, the sealing assembly includes a sealing member, which is installed inside the moving cavity 5. The two sides of the middle of the sealing member are connected to one end of the spring 7, and the other end of the spring 7 is connected to the cavity wall of the moving cavity 5. The sealing member can move back and forth along the moving cavity 5, and one end of the sealing member can extend into the interior of the spare pressure relief channel 4 and make sealing contact.

[0020] like Figure 5 As shown, the seal includes a limit plate 8, a connecting block 9 is installed in the middle of one side of the limit plate 8, and a circular groove is opened on the other side. The middle of the connecting block 9 is connected to the sealing end 10, and mounting grooves 11 are opened on both sides of the connecting block 9. One end of the spring 7 is installed inside the mounting groove 11, and an arc-shaped strip hole 12 is opened on the limit plate 8.

[0021] In order to prevent the limiting plate 8 from rotating, a limiting block 13 is installed on the side of the limiting plate 8. A limiting groove is opened inside the motion cavity 5. The limiting block 13 is located inside the limiting groove and can slide along the limiting groove.

[0022] In order to maintain the stability of the movement, two limit blocks 8 are provided, which are symmetrically distributed on both sides of the limit plate 8.

[0023] In order to improve the connection sealing of the sealing cover, a sealing groove 14 is provided at the connection between the plug body 2 and the cover body 1. A sealing ring is installed inside the sealing groove 14 to seal the connection between the sealing cover and the mixing tank body.

[0024] To facilitate the fixing of the sealing cover, a plurality of fixing connection holes 15 for installing fixing screws are provided on the side of the cover body 1 , and the fixing connection holes 15 and the threaded connection holes 6 are evenly distributed along the circumference of the cover body 1 .

[0025] The process flow and working principle of the utility model are as follows: when the sealing cover is used, the plug body 2 is installed at the top opening of the tank body of the mixing tank, and the sealing cover and the tank body are fixed by means of fixing screws and the fixing connection holes 15, the pressure relief valve is installed on the pressure relief channel 3, the tightening screw is installed inside the threaded connection hole 6, and the tightening screw can be used as a fixing screw to fix the sealing cover. When the tightening screw is installed in place, the end of the tightening screw extends into the circular groove on one side of the limit plate 8, pressing the limit plate 8 forward, and the limit plate 8 drives the connecting block 9 and the sealing end 10 to compress the spring 7 forward, so that the sealing end 10 extends into the spare pressure relief channel 4 for sealing; when the spare pressure relief channel 4 needs to be used for pressure relief, the tightening screw is screwed outward, and under the action of the spring 7, the sealing end 10 is moved out of the spare pressure relief channel 4, and air enters and exits from the spare pressure relief channel 4, the arc-shaped strip hole 12 and the threaded connection hole 6 to achieve pressure relief.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 sealing cover for a mortar mixing tank, comprising a cover body, a plug body being connected to the lower part of the cover body, characterized in that: The cover body and the plug body are provided with connected pressure relief channels, and the side of the cover body is provided with a spare pressure relief channel, one end of the spare pressure relief channel is connected with the pressure relief channel, and the other end is connected with the motion cavity, and the motion cavity is connected with the threaded connection hole, a sealing assembly is installed inside the motion cavity, a tightening screw is installed inside the threaded connection hole, and the tightening screw can tighten the sealing assembly to seal the spare pressure relief channel, the sealing assembly includes a sealing member, and the sealing member is installed inside the motion cavity, one end of a spring is connected to both sides of the middle part of the sealing member, and the other end of the spring is connected to the cavity wall of the motion cavity, the sealing member can move back and forth along the motion cavity, and one end of the seal can extend into the inside of the spare pressure relief channel and make sealing contact.

2. The sealing cover of a mortar mixing tank according to claim 1, characterized in that: The sealing component includes a limiting plate, a connecting block is installed in the middle of one side of the limiting plate, and a circular groove is opened on the other side. The middle of the connecting block is connected to the sealing end, and mounting grooves are opened on both sides of the connecting block. One end of the spring is installed inside the mounting groove, and an arc-shaped strip hole is opened on the limiting plate.

3. The sealing cover of a mortar mixing tank according to claim 2, characterized in that: A limiting block is installed on the side of the limiting plate, a limiting groove is opened inside the movement cavity, and the limiting block is located inside the limiting groove and can slide along the limiting groove.

4. The sealing cover of a mortar mixing tank according to claim 3, characterized in that: There are two limit blocks, which are symmetrically distributed on both sides of the limit plate.

5. The sealing cover of a mortar mixing tank according to claim 1, characterized in that: A sealing groove is provided at the connection between the plug body and the cover body, and a sealing ring is installed inside the sealing groove.

6. The sealing cover of a mortar mixing tank according to claim 1, characterized in that: The side of the cover body is provided with a plurality of fixing connection holes for installing fixing screws, and the fixing connection holes and the threaded connection holes are evenly distributed along the circumference of the cover body.

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