CN217130485U - Canned type valve switch with manual switching mechanism - Google Patents

Abstract

The utility model relates to a canned type valve switch with manual switching mechanism, including base, fluted disc, nut dog, split nut, screw rod and hand wheel, still include casing, apron, a cover section of thick bamboo and carousel, the both ends of casing respectively with apron, base sealing connection, sealing connection has a cover section of thick bamboo on the casing, carousel swivelling joint is on the inner wall of a cover section of thick bamboo, and the one end and the split nut of carousel are connected, and the other end of carousel is equipped with the switching handle that is used for controlling split nut, casing swivelling joint has the hand wheel, and the casing joint has the nut dog. The utility model discloses an inside the casing was located to transmission parts such as fluted disc, helical gear, split nut, and the apron was fixed a cover section of thick bamboo inside the casing for the one end of screw rod is inside a cover section of thick bamboo all the time, and it is higher to compare traditional valve switch leakproofness, avoids the external impurity adhesion on transmission parts such as fluted disc, screw rod, thereby improve equipment's life.

Description

Canned type valve switch with manual switching mechanism

Technical Field

The utility model relates to a technical field of valve, in particular to sealed type valve switch with manual switching mechanism.

Background

The valve switch reciprocates through hand wheel control screw to realize that control flap is closed or opened, also can adjust the flow of the inside medium of valve simultaneously, it is required in order to adapt to different valve application environment, increases the split nut structure in screw rod department, through pulling switching handle, can manually switch over the relative position of split nut and screw rod, can realize that the valve switch closes the floodgate fast or opens, does not lose the function of hand wheel control valve interior medium flow size simultaneously.

However, in the conventional valve switch with the manual switching mechanism, the fluted disc and the helical gear are exposed, so that external impurities are easily adhered to transmission parts such as the fluted disc and the helical gear, the fluted disc is easily abraded, and the service life of equipment is shortened.

Disclosure of Invention

In order to overcome the deficiency of the background art, the utility model discloses the technical scheme who adopts is: the utility model provides a canned type valve switch with manual switching mechanism, includes base, fluted disc, nut dog, split nut, screw rod and hand wheel, the nut dog passes through fluted disc and base fixed connection, nut dog sliding connection has split nut, the split nut meshing is connected with the screw rod, the fluted disc meshing is connected with the hand wheel, still includes casing, apron, cover cylinder and carousel, the both ends of casing respectively with apron, base sealing connection, sealing connection has the cover cylinder on the casing, carousel swivelling joint is on the inner wall of cover cylinder, and the one end and the split nut of carousel are connected, and the other end of carousel is equipped with the switching handle that is used for controlling split nut, casing swivelling joint has the hand wheel, and the casing joint has the nut dog.

Further, be equipped with open slot and inner chamber on the cover section of thick bamboo, inner chamber swivelling joint has the cover section of thick bamboo, the switching handle passes the open slot and is connected with the carousel, the bottom of carousel is equipped with the guiding groove, the split nut is equipped with the spliced pole corresponding with the guiding groove, controls split nut and screw rod meshing through the guiding groove when the carousel is rotatory.

Furthermore, be equipped with spacing groove and spread groove in the casing, nut dog joint in spacing groove is equipped with the bearing in the spread groove, and the spread groove has through bearing swivelling joint the hand wheel.

Furthermore, one end of the hand wheel is provided with a bevel gear meshed with the fluted disc, and the hand wheel is meshed with the fluted disc through the bevel gear.

Further, the both ends of casing are equipped with first sealing washer, base, apron are through first sealing washer sealing connection in casing both ends, the apron is equipped with the second sealing washer, cover a section of thick bamboo is through second sealing washer sealing connection in apron, cover a section of thick bamboo is equipped with the third sealing washer, the carousel passes through third sealing washer sealing connection in cover a section of thick bamboo.

Compared with the prior art, the beneficial effects of the utility model are that:

1. locate inside the casing with transmission parts such as fluted disc, helical gear, split nut, and the apron is fixed a cover section of thick bamboo inside the casing for the one end of screw rod is inside a cover section of thick bamboo all the time, compares traditional valve switch leakproofness higher, avoids external impurity adhesion on transmission parts, thereby improve equipment's life.

2. The nut stop blocks are clamped in the shell through the limiting grooves, and dislocation of the nut stop blocks is avoided, so that the meshing precision of the split nuts and the screw rods is improved, and the normal control of the hand wheels to the movement of the screw rods is guaranteed.

3. Through first sealing washer, second sealing washer and third sealing washer improve the leakproofness between casing, base, apron, cover section of thick bamboo and the cover section of thick bamboo, avoid on the rainwater infiltration reaches the transmission part, avoid the transmission part to rust the card dead to improve equipment's life.

The embodiments of the present invention will be further explained with reference to the drawings.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic structural view of a hand wheel 6 control screw 5 of the present invention;

fig. 3 is a perspective view of the cover cylinder 9 of the present invention;

fig. 4 is a perspective view of the housing 7 of the present invention;

fig. 5 is a partial enlarged view of the view from the direction a in fig. 1 according to the present invention;

FIG. 6 is a conventional valve switch with a manual switching mechanism;

wherein: 1-base, 2-fluted disc, 3-nut block, 4-opening and closing nut, 5-screw, 6-handwheel, 7-shell, 8-cover plate, 9-cover cylinder, 10-rotary disc, 11-switching handle, 12-first sealing ring, 13-second sealing ring, 14-third sealing ring, 41-connecting column, 61-helical gear, 71-limiting groove, 72-connecting groove, 91-opening groove, 92-inner cavity, 101-guiding groove and 721-bearing;

Detailed Description

As shown in fig. 1 and 2, a sealed valve switch with a manual switching mechanism comprises a base 1, a fluted disc 2, a nut stop 3, a split nut 4, a screw rod 5 and a hand wheel 6, the nut stop block 3 is fixedly connected with the base 1 through the fluted disc 2, the nut stop block 3 is connected with a split nut 4 in a sliding way, the split nut 4 is connected with a screw rod 5 in a meshed manner, the fluted disc 2 is connected with a hand wheel 6 in a meshed manner, the split nut further comprises a shell 7, a cover plate 8, a cover cylinder 9 and a turntable 10, the two ends of the shell 7 are respectively connected with the cover plate 8 and the base 1 in a sealing way, the shell 7 is connected with the cover cylinder 9 in a sealing way, carousel 10 swivelling joint is on the inner wall of cover section of thick bamboo 9, and the one end and the split nut 4 of carousel 10 are connected, and the other end of carousel 10 is equipped with the switching handle 11 that is used for controlling split nut 4, casing 7 swivelling joint has hand wheel 6, and casing 7 joint has nut dog 3.

As shown in fig. 3 and 4, an open slot 91 and an inner cavity 92 are formed in the cover cylinder 9, the inner cavity 92 is rotatably connected to the cover cylinder 9, the switch handle 11 passes through the open slot 91 to be connected to the rotary disk 10, a guide slot 101 is formed in the bottom of the rotary disk 10, the split nut 4 is provided with a connection column 41 corresponding to the guide slot 101, and the split nut 4 is controlled by the guide slot 101 to be meshed with the screw rod 5 when the rotary disk 10 rotates. The shell 7 is internally provided with a limiting groove 71 and a connecting groove 72, the nut stop block 3 is clamped in the limiting groove 71, a bearing 721 is arranged in the connecting groove 72, and the connecting groove 72 is rotationally connected with the hand wheel 6 through the bearing 721. One end of the hand wheel 6 is provided with a bevel wheel 61 meshed with the fluted disc 2, and the hand wheel 6 is meshed with the fluted disc 2 through the bevel wheel 61.

When the hand wheel 6 is needed to control the screw rod 5, the switching handle 11 is operated to rotate by 90 degrees, so that the turnplate 10 controls the split nuts 4 on the two sides of the nut stop block 3 to simultaneously move towards the screw rod 5 until the split nuts 4 are meshed with teeth on the screw rod 5, and therefore the requirement of manual control of valve switch switching is met, otherwise, if the screw rod 5 needs to be quickly controlled to ascend and descend, the switching handle 11 is reversely rotated, and the split nuts 4 leave the screw rod 5, so that the requirement of quick valve switching is met; the split nut 4 can be extruded with the nut stop block 3 in the moving process, so that the nut stop block 3 is easy to move outwards, the nut stop block 3 is clamped in the shell 7 through the limiting groove 71, the dislocation of the nut stop block 3 is avoided, the meshing precision of the split nut 4 and the screw rod 5 is improved, and the hand wheel 6 is ensured to normally control the screw rod 5 to move; locate transmission parts such as fluted disc 2, helical gear 61, split nut 4 inside casing 7, and apron 8 fixes cover cylinder 9 inside casing 7 for the one end of screw rod 5 is inside cover cylinder 9 all the time, and it is higher to compare traditional valve switch leakproofness, avoids external impurity adhesion on transmission parts, thereby improve equipment's life.

As shown in fig. 5, wherein first sealing rings 12 are arranged at two ends of the casing 7, the base 1 and the cover plate 8 are connected to two ends of the casing 7 through the first sealing rings 12 in a sealing manner, the cover plate 8 is provided with a second sealing ring 13, the cover cylinder 9 is connected to the cover plate 8 through the second sealing ring 13 in a sealing manner, the cover cylinder 9 is provided with a third sealing ring 14, and the rotary table 10 is connected to the cover cylinder 9 through the third sealing ring 14 in a sealing manner. Improve the leakproofness between casing 7, base 1, apron 8 and the cover section of thick bamboo 9 through first sealing washer 12, second sealing washer 13 and third sealing washer 14, avoid on the rainwater infiltration transmission part, avoid transmission part rusts the card and dies to improve equipment's life.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications using the inventive concepts will be covered by the scope of the present patent application.

Claims (5)

1. A sealed valve switch with a manual switching mechanism comprises a base (1), a fluted disc (2), a nut stop block (3), a split nut (4), a screw rod (5) and a hand wheel (6), wherein the nut stop block (3) is fixedly connected with the base (1) through the fluted disc (2), the nut stop block (3) is slidably connected with the split nut (4), the split nut (4) is meshed with the screw rod (5), and the fluted disc (2) is meshed with the hand wheel (6), and the sealed valve switch is characterized by further comprising a shell (7), a cover plate (8), a cover cylinder (9) and a rotary disc (10), wherein two ends of the shell (7) are respectively connected with the cover plate (8) and the base (1) in a sealing manner, the shell (7) is connected with the cover cylinder (9) in a sealing manner, the rotary disc (10) is rotatably connected to the inner wall of the cover cylinder (9), and one end of the rotary disc (10) is connected with the split nut (4), the other end of carousel (10) is equipped with switching handle (11) that are used for controlling split nut (4), casing (7) swivelling joint has hand wheel (6), and casing (7) joint has nut dog (3).

2. A sealed valve switch with a manual switching mechanism according to claim 1, wherein: be equipped with open slot (91) and inner chamber (92) on cover section of thick bamboo (9), inner chamber (92) swivelling joint has cover section of thick bamboo (9), switch handle (11) and pass open slot (91) and be connected with carousel (10), the bottom of carousel (10) is equipped with guiding groove (101), split nut (4) are equipped with spliced pole (41) corresponding with guiding groove (101), through guiding groove (101) control split nut (4) and screw rod (5) meshing when carousel (10) are rotatory.

3. A sealed valve switch with a manual switching mechanism according to claim 2, wherein: be equipped with spacing groove (71) and spread groove (72) in casing (7), nut dog (3) joint in spacing groove (71), is equipped with bearing (721) in spread groove (72), and spread groove (72) have through bearing (721) swivelling joint hand wheel (6).

4. A sealed valve switch with a manual switching mechanism according to claim 3, wherein: one end of the hand wheel (6) is provided with a bevel gear (61) meshed with the fluted disc (2), and the hand wheel (6) is meshed with the fluted disc (2) through the bevel gear (61).

5. A sealed valve switch with a manual switching mechanism according to claim 1, wherein: the both ends of casing (7) are equipped with first sealing washer (12), base (1), apron (8) are through first sealing washer (12) sealing connection in casing (7) both ends, apron (8) are equipped with second sealing washer (13), cover section of thick bamboo (9) are through second sealing washer (13) sealing connection in apron (8), cover section of thick bamboo (9) are equipped with third sealing washer (14), carousel (10) are through third sealing washer (14) sealing connection in cover section of thick bamboo (9).

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