CN214559838U

CN214559838U - Grinder for valve seat of gate valve

Info

Publication number: CN214559838U
Application number: CN202121001707.6U
Authority: CN
Inventors: 卓文清; 谢建中; 郑冬青; 王水好
Original assignee: Snite Hubei Industrial Manufacturing Co ltd
Current assignee: Snite Hubei Industrial Manufacturing Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-11-02
Anticipated expiration: 2031-05-12

Abstract

A gate valve seat grinder comprises a grinding disc and a buffer connector, wherein a grinding disc connecting plate (1), a base plate (2), abrasive paper (3), a positioning plate (4), a pressing plate (5) and a locking nut (6) are arranged on the top of the connecting plate (1), a transmission connecting part (7) is arranged at the bottom of the connecting plate (1), locking studs (8) are arranged at the bottom of the connecting plate (1), mounting holes are respectively formed in the centers of the base plate (2), the abrasive paper (3), the positioning plate (4) and the pressing plate (5) and are sequentially arranged and installed on the locking studs (8) through the mounting holes, and the locking nut (6) is installed on the locking studs (8) in a threaded mode; the advantages are that: the grinding disc is provided with the locating plate, prevents that the grinding disc off tracking or departure, reduces the operation degree of difficulty, has alleviateed workman's intensity of labour.

Description

Grinder for valve seat of gate valve

Technical Field

The utility model relates to a sealed face processing field of gate valve disk seat, concretely relates to gate valve disk seat mill.

Background

At present, a gate valve is widely applied to the fields of petroleum, natural gas, electric power, water supply and drainage and the like as a conventional general valve, the machining efficiency of valve parts determines the production efficiency of the valve, the grinding of a sealing surface of a valve seat is of great importance, and the gate valve seat grinding device on the market generally has the defects of complex structure, large weight, inconvenience in operation, high failure rate, complex maintenance, low matching degree and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gate valve disk seat mill to the aforesaid is not enough.

The utility model comprises a grinding disc and a buffer connector,

a grinding disc connecting plate, a base plate, sand paper, a positioning plate, a pressing plate and a locking nut,

the top of the connecting plate is provided with a transmission connecting part, the bottom of the connecting plate is provided with a locking stud, the centers of the base plate, the abrasive paper, the positioning plate and the pressing plate are respectively provided with a mounting hole and are sequentially arranged and mounted on the locking stud through the mounting holes, the locking nut is in threaded mounting on the locking stud, and the pressing plate, the positioning plate, the abrasive paper and the base plate are sequentially pressed on the connecting plate through the knob locking nut;

the buffer connector comprises a buffer body, a spring, a buffer block and a pressing sleeve,

the buffer body is cylindrical, a buffer block fixing groove is formed in the center of the bottom of the buffer body, external threads are arranged on the outer wall of the bottom of the buffer body, the spring is located in the buffer block fixing groove, a grinding disc transmission protrusion is arranged at the bottom of the buffer block, the buffer block is located in the buffer block fixing groove, the top of the pressing sleeve is open, a through hole is formed in the center of the pressing sleeve, internal threads are formed in the inner wall of the pressing sleeve, the pressing sleeve is installed at the bottom of the buffer body in a threaded mode, the buffer block and the spring are pressed in the buffer block fixing groove through the pressing sleeve, and the grinding disc transmission protrusion extends out of the through hole of the pressing sleeve;

the grinding disc transmission bulge of the buffer connector is inserted into the transmission connecting part.

The transmission connecting part is a hexagonal connecting groove or a hexagonal connecting bulge.

The cross sections of the connecting plate, the base plate, the sand paper, the positioning plate and the pressing plate are all circular.

The outer diameters of the base plate and the sand paper are larger than that of the positioning plate.

The base plate and the positioning plate are made of wood materials.

The bottom outer edge of the positioning plate is provided with an annular chamfer.

The buffer block fixing groove is a hexagonal fixing groove, and the buffer block is a hexagonal prism-shaped buffer block.

The section of the transmission bulge of the grinding disc is hexagonal.

A pair of pressing grooves are symmetrically distributed on the outer wall of the bottom of the pressing sleeve.

The diameter of the through hole of the pressing sleeve is larger than the outer diameter of the transmission bulge of the grinding disc.

The utility model has the advantages that: the grinding disc is provided with the locating plate, prevents that the grinding disc off tracking or departure, reduces the operation degree of difficulty, has alleviateed workman's intensity of labour.

Description of the drawings

Fig. 1 is a schematic sectional structural view of the grinding disk of the present invention.

Fig. 2 is an explosion structure diagram of the grinding disc of the present invention.

Fig. 3 is a schematic sectional view of the buffer connector of the present invention.

Fig. 4 is an exploded view of the buffer connector of the present invention.

Fig. 5 is a schematic structural diagram of the buffer connector of the present invention.

Fig. 6 is a schematic structural view of the gate valve seat grinder of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inside", "outside", etc. are used for indicating the orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually place when using, the present invention is only used for convenience of description and simplification of the description, but does not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and thus, the present invention should not be construed as being limited. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance. In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in the attached drawings, the utility model comprises a grinding disc and a buffer connector,

a grinding disc connecting plate 1, a base plate 2, sand paper 3, a positioning plate 4, a pressing plate 5 and a locking nut 6,

the top of the connecting plate 1 is provided with a transmission connecting part 7, the bottom of the connecting plate 1 is provided with a locking stud 8, the centers of the base plate 2, the abrasive paper 3, the positioning plate 4 and the pressing plate 5 are respectively provided with a mounting hole and are sequentially arranged and mounted on the locking stud 8 through the mounting holes, a locking nut 6 is arranged on the locking stud 8 in a threaded manner, and the pressing plate 5, the positioning plate 4, the abrasive paper 3 and the base plate 2 are sequentially pressed on the connecting plate 1 through a knob locking nut 6;

the buffer connector comprises a buffer body 10, a spring 11, a buffer block 12 and a pressing sleeve 13,

the buffer body 10 is cylindrical, a buffer block fixing groove 14 is formed in the center of the bottom of the buffer body 10, external threads are arranged on the outer wall of the bottom of the buffer body 10, the spring 11 is located in the buffer block fixing groove 14, a grinding disc transmission bulge 15 is arranged at the bottom of the buffer block 12, the buffer block 12 is located in the buffer block fixing groove 14, the top of the pressing sleeve 13 is open, a through hole is formed in the center of the pressing sleeve 13, internal threads are arranged on the inner wall of the pressing sleeve 13, the pressing sleeve 13 is installed at the bottom of the buffer body 10 in a threaded mode, the buffer block 12 and the spring 11 are pressed in the buffer block fixing groove 14 through the pressing sleeve 13, and the grinding disc transmission bulge 15 extends out of the through hole of the pressing sleeve 13;

the grinding disc drive protrusions 15 of the buffer coupling are inserted into the drive connection portion 7.

The transmission connecting part 7 is a hexagonal connecting groove or a hexagonal connecting protrusion.

The cross sections of the connecting plate 1, the base plate 2, the sand paper 3, the positioning plate 4 and the pressing plate 5 are all circular.

The outer diameters of the base plate 2 and the abrasive paper 3 are larger than the outer diameter of the positioning plate 4.

The base plate 2 and the positioning plate 4 are made of wood materials.

The bottom outer edge of the positioning plate 4 is provided with an annular chamfer 9.

The buffer block fixing groove 14 is a hexagonal fixing groove, and the buffer block 12 is a hexagonal prism-shaped buffer block.

The cross-section of the grinding disc drive protrusions 15 is hexagonal.

A pair of pressing grooves 16 are symmetrically distributed on the outer wall of the bottom of the pressing sleeve 13.

The diameter of the through hole of the pressing sleeve 13 is larger than the outer diameter of the transmission bulge 15 of the grinding disc.

The working mode and principle are as follows: in the staff put into the gate valve with gate valve disk seat abrasive disc, locating plate 4 inserts the cavity of the sealed face below of gate valve, plays the positioning action to gate valve disk seat abrasive disc, and the face of polishing of abrasive paper 3 is laminated with the sealed face of gate valve, and hand-held type inverter motor's power take off end is fixed with buffering connecting device through the extension bar, is connected with transmission connecting portion 7 through buffering connecting device, starts hand-held type inverter motor and drives the gate valve disk seat abrasive disc rotation, the sealed face of gate valve of polishing. And taking out the gate valve seat grinding disc after polishing. The external diameters of the base plate 2 and the abrasive paper 3 are larger than the external diameter of the sealing surface of the valve seat, but not larger than the internal diameter of the middle cavity of the valve body, so that the grinding disc assembly can not be placed into the valve, the external diameter of the positioning plate 4 is slightly smaller than the internal diameter of the valve seat, the positioning effect is achieved when the grinding disc assembly rotates, and the grinding disc is prevented from deviating or flying out during rotary grinding. In order to increase the grinding speed and ensure the grinding quality, the sandpaper 503 can be replaced by different types according to rough grinding and fine grinding. The annular chamfer 9 enables the positioning plate 4 to be better inserted into the cavity below the sealing surface of the gate valve. Base plate 2 and locating plate 4 adopt wooden material to make, can alleviate the weight of gate valve disk seat abrasive disc self.

The top of buffering body 10 and hand-held type inverter motor power output shaft's extension bar fixed connection, the protruding 15 of abrasive disc transmission of buffering connector insert in the transmission spread groove at the top of abrasive disc in the gate valve, start that hand-held type inverter motor is mobile to drive the abrasive disc through buffering connector and grind the sealed face of gate valve. When polishing, the buffer block 12 moves up and down in the buffer block fixing groove 14, and the buffer block 12 is buffered through the spring 11. The pressing sleeve 13 is installed by pressing the fingers of the worker on the pressing groove 16 and rotatably installing the pressing sleeve 13, so that the pressing sleeve 13 is conveniently installed in a twisting mode. Buffer block fixed slot 14 is the hexagonal fixed slot, and buffer block 12 is hexagonal prism shape buffer block, can prevent buffer block 12 at buffer block fixed slot 14 internal rotation.

Claims

1. A grinder for the valve seat of gate valve is composed of a grinding disk and a buffer connector,

a grinding disc connecting plate (1), a base plate (2), sand paper (3), a positioning plate (4), a pressing plate (5) and a locking nut (6),

the top of the connecting plate (1) is provided with a transmission connecting part (7), the bottom of the connecting plate (1) is provided with locking studs (8), the centers of the base plate (2), the abrasive paper (3), the positioning plate (4) and the pressing plate (5) are respectively provided with mounting holes and are sequentially arranged and mounted on the locking studs (8) through the mounting holes, the locking nuts (6) are arranged on the locking studs (8) in a threaded manner, and the pressing plate (5), the positioning plate (4), the abrasive paper (3) and the base plate (2) are sequentially pressed on the connecting plate (1) through the knob locking nuts (6);

the buffer connector comprises a buffer body (10), a spring (11), a buffer block (12) and a pressing sleeve (13),

the buffer body (10) is cylindrical, a buffer block fixing groove (14) is formed in the center of the bottom of the buffer body (10), external threads are formed in the outer wall of the bottom of the buffer body (10), the spring (11) is located in the buffer block fixing groove (14), a grinding disc transmission bulge (15) is arranged at the bottom of the buffer block (12), the buffer block (12) is located in the buffer block fixing groove (14), the top of the pressing sleeve (13) is open, a through hole is formed in the center of the pressing sleeve (13), internal threads are formed in the inner wall of the pressing sleeve (13), the pressing sleeve (13) is installed at the bottom of the buffer body (10) in a threaded mode, the buffer block (12) and the spring (11) are pressed in the buffer block fixing groove (14) through the pressing sleeve (13), and the grinding disc transmission bulge (15) extends out of the through hole of the pressing sleeve (13);

the grinding disc transmission bulge (15) of the buffer connector is inserted into the transmission connecting part (7).

2. The grinder for valve seats of gate valves according to claim 1, characterized in that the transmission connection part (7) is a hexagonal connection groove or a hexagonal connection protrusion.

3. The grinder for gate valve seats according to claim 1, wherein the cross-sections of the connection plate (1), the base plate (2), the sandpaper (3), the positioning plate (4) and the pressing plate (5) are all circular.

4. The grinder for a valve seat of a gate valve according to claim 1, wherein the outer diameters of the base plate (2) and the sandpaper (3) are larger than the outer diameter of the positioning plate (4).

5. The grinder for valve seats of gate valves according to claim 1, wherein the base plate (2) and the positioning plate (4) are made of wood.

6. The grinder for valve seats of gate valves according to claim 1, characterized in that the bottom outer edge of the positioning plate (4) is provided with an annular chamfer (9).

7. The grinder for valve seats of gate valves according to claim 1, wherein the buffer block fixing groove (14) is a hexagonal fixing groove, and the buffer block (12) is a hexagonal prism-shaped buffer block.

8. The grinder for gate valve seats according to claim 1, characterized in that the section of the grinding disc driving projection (15) is hexagonal.

9. The grinder for valve seats of gate valves according to claim 1, wherein a pair of pressing grooves (16) are symmetrically distributed on the outer wall of the bottom of the pressing sleeve (13).

10. The grinder for valve seats of gate valves according to claim 1, wherein the diameter of the through hole of the pressing sleeve (13) is larger than the outer diameter of the driving protrusion (15) of the grinding disk.