Pump valve sealing cover

Abstract

The utility model discloses a pump valve sealing cover which comprises a screw rod and a cover plate, the upper end of the screw rod is sleeved with a first sleeve in a sliding mode, the lower end of the screw rod is sleeved with a second sleeve in a sliding mode, the screw rod is sleeved with a spring, and the spring is located between the first sleeve and the second sleeve. And a plurality of top contact mechanisms are arranged on the outer sides of the first sleeve and the second sleeve and are distributed in an annular array. The pump valve sealing cover is composed of the screw rod, the cover plate, the abutting contact mechanism and the like and is convenient to disassemble and assemble, the cushion block and the cover plate which are detachably connected are adopted, the cover plate with the appropriate size is selected according to the caliber of the end of the pump valve, the manufacturing cost of the sealing cover is reduced, and meanwhile only the position of the second sleeve needs to be adjusted. And then the screw rod is inserted into the pump valve end part pipeline, and the screw cap is rotated, so that the cover plate can seal the pump valve end part opening, and the screw rod is fixed in the pump valve end part pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pump valves, in particular to a pump valve sealing cover. Background Art

[0002] Pumps and valves are devices used to control the flow of fluids and are widely used in industries such as industry, agriculture, construction, petroleum, and chemical engineering. Pumps and valves are mainly used to adjust the flow, pressure, direction, and other parameters of the fluid to ensure smooth and efficient operation of the fluid in the delivery pipeline. There are many types of pumps and valves, which are classified according to the working principle, structural characteristics, and application scenarios of the valves. Common types of pumps and valves include ball valves, butterfly valves, gate valves, stop valves, safety valves, pressure reducing valves, etc.

[0003] During use, pumps and valves, especially those installed outdoors, will be corroded by corrosive substances such as air, rain, and snow. Spray painting can effectively isolate the valve surface from contact with corrosive substances, prevent the valve metal material from oxidation and rust, and thus extend the service life of the valve.

[0004] The inside of pumps and valves usually adopts metal materials, such as stainless steel, carbon steel, etc. These materials have good corrosion resistance. Painting the inside of pumps and valves will make the valves complicated to install and maintain. The paint layer may cause certain troubles when disassembling and cleaning the valves, and may even affect the normal use of the valves. Therefore, when painting the pumps and valves, the ends of the pumps and valves need to be sealed through sealing covers to prevent paint from entering the inside of the pumps and valves. However, the existing pump and valve sealing covers need to be designed according to the different end diameters of the pumps and valves, so that the sealing covers can be snapped on the ends of the pumps and valves. This leads to the need to re-open the mold to make the sealing covers, and there are many types and sizes of pumps and valves, which leads to an increase in the production cost of the sealing covers, which increases the production cost.

[0005] Therefore, it is necessary to invent a pump valve sealing cover to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a pump valve sealing cover to solve the above-mentioned technical deficiencies.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pump valve sealing cover, comprising a screw and a cover plate, wherein the upper end of the screw is slidably sleeved with a No. 1 sleeve, the lower end of the screw is slidably sleeved with a No. 2 sleeve, the outer side of the screw is sleeved with a spring, the spring is located between the No. 1 sleeve and the No. 2 sleeve, and the outer sides of the No. 1 sleeve and the No. 2 sleeve are provided with a plurality of top contact mechanisms, and the plurality of top contact mechanisms are distributed in a ring array;

[0008] The top contact mechanism comprises:

[0009] A guide rod No. 1 is arranged on the outside of the No. 1 sleeve, and a guide rod No. 2 is arranged on the outside of the No. 2 sleeve. The No. 1 guide rod corresponds to the No. 2 guide rod, and the lower end of the No. 1 guide rod is rotatably connected to the upper end of the No. 2 guide rod.

[0010] As a preferred embodiment of the utility model, multiple notches are provided on the outer sides of the No. 1 sleeve and the No. 2 sleeve, and the number of the multiple notches is equal to the number of the top contact mechanisms. The upper end of the No. 1 guide rod is rotatably connected to the notch on one side of the No. 1 sleeve through a shaft rod, and the lower end of the No. 2 guide rod is rotatably connected to the notch on one side of the No. 2 sleeve through a shaft rod.

[0011] As a preferred solution of the utility model, a through hole is vertically opened at the center of the cover plate, and the cover plate is sleeved on the screw rod through the through hole. A pad is provided at the bottom of the cover plate, and the pad is sleeved on the outside of the screw rod, and the lower end of the pad is in contact with the top of the No. 1 sleeve.

[0012] As a preferred embodiment of the present invention, a nut is installed on the upper thread of the screw, and the nut is located above the cover plate. A top screw is provided on one side of the No. 2 sleeve, and the front end of the top screw penetrates the inner wall of the No. 2 sleeve and contacts the outer wall of the screw.

[0013] As a preferred solution of the utility model, the cover plate is made of a wooden board or a plastic board, and the cushion block is detachably connected to the bottom of the cover plate.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The pump valve sealing cover is composed of a screw, a cover plate, a top contact mechanism and other components, which are easy to disassemble and install. The detachable gasket and cover plate are used, and the cover plate of appropriate size is selected according to the diameter of the pump valve end, thereby reducing the production cost of the sealing cover. At the same time, it is only necessary to adjust the position of the No. 2 sleeve, and then insert the screw into the pump valve end pipe, and rotate the nut to achieve the sealing of the cover plate to the pump valve end opening, and to achieve the fixation of the screw in the pump valve end pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a first-view stereoscopic diagram of the overall structure of the utility model;

[0018] Figure 2A second perspective stereogram of the overall structure of the utility model;

[0019] Figure 3 It is a third perspective stereogram of the overall structure of the utility model;

[0020] Figure 4 It is an exploded view of the overall structure of the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the second sleeve of the utility model.

[0022] Description of reference numerals:

[0023] 1. Screw; 2. Cover plate; 21. Through hole; 3. Sleeve No. 1; 4. Sleeve No. 2; 5. Spring; 6. Nut; 7. Spacer; 8. Top contact mechanism; 81. Guide rod No. 1; 82. Guide rod No. 2; 9. Top screw; 10. Notch. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5 A pump valve sealing cover shown in the figure includes a screw 1 and a cover plate 2. The screw 1 is the main component of the pump valve sealing cover. The upper and lower ends of the screw 1 are respectively sleeved with a No. 1 sleeve 3 and a No. 2 sleeve 4. A spring 5 is provided on the outside of the screw 1 to adjust the position of the sealing cover. The upper end of the screw 1 is slidably sleeved with the No. 1 sleeve 3, and the lower end of the screw 1 is slidably sleeved with the No. 2 sleeve 4. The outside of the screw 1 is sleeved with a spring 5, and the spring 5 is located between the No. 1 sleeve 3 and the No. 2 sleeve 4. The outer sides of the No. 1 sleeve 3 and the No. 2 sleeve 4 are provided with multiple top contact mechanisms 8. The position of the screw 1 at the end of the pump valve pipeline is fixed by the top contact mechanism 8, thereby realizing the fixing of the position of the cover plate 2. The multiple top contact mechanisms 8 are distributed in a ring array;

[0026] The top contact mechanism 8 comprises:

[0027] The first guide rod 81 is arranged on the outside of the first sleeve 3, and the second guide rod 82 is arranged on the outside of the second sleeve 4. The first guide rod 81 corresponds to the second guide rod 82, and the lower end of the first guide rod 81 is rotatably connected to the upper end of the second guide rod 82.

[0028] Furthermore, in the above technical scheme, multiple notches 10 are opened on the outer sides of the No. 1 sleeve 3 and the No. 2 sleeve 4. The design of the notches 10 facilitates the rotation of the ends of the No. 1 guide rod 81 and the No. 2 guide rod 82 of the top contact mechanism 8. The number of the multiple notches 10 is equal to the number of the top contact mechanisms 8. The upper end of the No. 1 guide rod 81 is rotatably connected to the notch 10 on one side of the No. 1 sleeve 3 through a shaft rod, and the lower end of the No. 2 guide rod 82 is rotatably connected to the notch 10 on one side of the No. 2 sleeve 4 through a shaft rod.

[0029] Furthermore, in the above technical solution, a through hole 21 is vertically opened at the center position of the cover plate 2, and the cover plate 2 is sleeved on the screw 1 through the through hole 21. A cushion block 7 is provided at the bottom of the cover plate 2, and the cushion block 7 is used to resist the No. 1 sleeve 3, thereby controlling the lifting and rotation of the top contact mechanism 8. The cushion block 7 is sleeved on the outside of the screw 1, and the lower end of the cushion block 7 is in contact with the top of the No. 1 sleeve 3.

[0030] Furthermore, in the above technical solution, a nut 6 is threadedly installed on the upper side of the screw 1, and the nut 6 is located above the cover plate 2. A top screw 9 is provided on one side of the No. 2 sleeve 4, and the position of the No. 2 sleeve 4 on the screw 1 is fixed by the top screw 9, so as to limit the position of the top contact mechanism 8 on the screw 1, and the front end of the top screw 9 passes through the inner wall of the No. 2 sleeve 4 and contacts the outer wall of the screw 1.

[0031] Furthermore, in the above technical solution, the cover plate 2 is made of a wooden board or a plastic board, and the cushion block 7 is detachably connected to the bottom of the cover plate 2, thereby facilitating the manufacture of the cover plate 2 and reducing the manufacturing cost.

[0032] The working process of a pump valve sealing cover provided by the utility model when in use is as follows:

[0033] When using a sealing cover for a pump valve, first select a cover plate 2 of appropriate size according to the area of ​​the pump valve end that does not need to be blocked, or select a wooden board or plastic board of a certain size, cut the wooden board or plastic board so that the cut cover plate 2 has a circular structure, and punch a hole in the center of the cut cover plate 2 to form a through hole 21, then sleeve the cover plate 2 onto the screw 1, and adjust the position of the No. 2 sleeve 4 on the screw 1 according to the length of the end pipe of the pump valve where the cover plate 2 is installed as required. When the position adjustment of the No. 2 sleeve 4 is completed, fix the position of the No. 2 sleeve 4 at the tail end of the screw 1 by the top screw 9 on the outside of the No. 2 sleeve 4.

[0034] When the position adjustment of the No. 2 sleeve 4 is completed, the position adjustment of the No. 1 sleeve 3 on the screw 1 is completed synchronously, and then a part of the screw 1 equipped with the top contact mechanism 8 is inserted into the pipe at one end of the pump valve, and then the nut 6 is rotated to move the nut 6 toward the tail end of the screw 1, and then the nut 6 squeezes the cover plate 2 to move toward the position of the No. 1 sleeve 3. As the No. 1 sleeve 3 moves toward the tail end of the screw 1, the top contact mechanism 8 is squeezed. As the top contact mechanism 8 is squeezed, the front and rear ends of the No. 1 guide rod 81 and the No. 2 guide rod 82 of the top contact mechanism 8 rotate, and then the No. 1 guide rod 81 and the No. 2 guide rod 82 rotate. 2, the connection between the two rotates outward, that is, the first guide rod 81 and the second guide rod 82 form a V-shaped structure. As the multiple top contact mechanisms 8 form a V-shaped structure, the top contact mechanism 8 is engaged in the end pipe of the pump valve, so that the screw rod 1 is in the end pipe of the pump valve. When the position of the screw rod 1 in the end pipe of the pump valve is kept fixed, the position of the cover plate 2 outside the end of the pump valve is fixed, and then the cover plate 2 seals the opening of the end of the pump valve, so as to prevent the paint from entering the inside of the pump valve during the painting process. In addition, the sealing cover structure of this structure can replace the corresponding cover plate 2 according to the end size of different pump valves.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pump valve sealing cover, comprising a screw (1) and a cover plate (2), characterized in that: The upper end of the screw rod (1) is slidably sleeved with a No. 1 sleeve (3), the lower end of the screw rod (1) is slidably sleeved with a No. 2 sleeve (4), the outside of the screw rod (1) is sleeved with a spring (5), the spring (5) is located between the No. 1 sleeve (3) and the No. 2 sleeve (4), and the outer sides of the No. 1 sleeve (3) and the No. 2 sleeve (4) are provided with a plurality of top contact mechanisms (8), and the plurality of top contact mechanisms (8) are distributed in a ring array; The top contact mechanism (8) comprises: A No. 1 guide rod (81) is arranged on the outer side of the No. 1 sleeve (3), and a No. 2 guide rod (82) is arranged on the outer side of the No. 2 sleeve (4). The No. 1 guide rod (81) corresponds to the No. 2 guide rod (82), and the lower end of the No. 1 guide rod (81) is rotatably connected to the upper end of the No. 2 guide rod (82).

2. A pump valve sealing cover according to claim 1, characterized in that: The outer sides of the No. 1 sleeve (3) and the No. 2 sleeve (4) are provided with a plurality of notches (10), the number of the plurality of notches (10) being equal to the number of the top contact mechanism (8); the upper end of the No. 1 guide rod (81) is rotatably connected to the notch (10) on one side of the No. 1 sleeve (3) via a shaft rod, and the lower end of the No. 2 guide rod (82) is rotatably connected to the notch (10) on one side of the No. 2 sleeve (4) via a shaft rod.

3. A pump valve sealing cover according to claim 1, characterized in that: A through hole (21) is vertically opened at the center of the cover plate (2), and the cover plate (2) is sleeved on the screw rod (1) via the through hole (21). A cushion block (7) is arranged at the bottom of the cover plate (2), and the cushion block (7) is sleeved on the outside of the screw rod (1), and the lower end of the cushion block (7) is in contact with the top of the No. 1 sleeve (3).

4. A pump valve sealing cover according to claim 1, characterized in that: A nut (6) is threadedly installed on the upper side of the screw rod (1), and the nut (6) is located above the cover plate (2). A top screw (9) is arranged on one side of the No. 2 sleeve (4), and the front end of the top screw (9) penetrates the inner wall of the No. 2 sleeve (4) and contacts the outer wall of the screw rod (1).

5. A pump valve sealing cover according to claim 3, characterized in that: The cover plate (2) is made of a wooden board or a plastic board, and the cushion block (7) is detachably connected to the bottom of the cover plate (2).

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