CN215806738U

CN215806738U - Needle valve

Info

Publication number: CN215806738U
Application number: CN202121000819.XU
Authority: CN
Inventors: 胡快; 胡芊妤
Original assignee: Yongjia Duojia Hydraulic Complete Equipment Co ltd
Current assignee: Yongjia Duojia Hydraulic Complete Equipment Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2022-02-11
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a needle valve which comprises a clamping box, wherein the upper end of the clamping box is connected with a toothed plate in a sliding mode, one end of the toothed plate is connected with a first gear in a meshing mode, one end of the first gear is connected with a second gear in a meshing mode, a threaded column is fixedly connected to the inner wall of the second gear, a threaded sleeve is connected to the outer wall of the lower end of the threaded column in a threaded mode, two sides of the threaded sleeve are hinged to first connecting columns, the lower end of each first connecting column is rotatably connected with a push column, one end of each push column is fixedly connected with a clamping plate, one end of the anti-collision box is connected with an anti-collision plate in a sliding mode, one side of the anti-collision plate is rotatably connected with two elastic rings which are symmetrically distributed through a first connecting block, the bottom end of the second connecting block is fixedly connected with a first sliding plate, and one ends of the two elastic rings are both fixedly connected with a second sliding plate. The utility model increases the stability of clamping the needle valve body after installation and reduces the labor intensity of workers.

Description

Needle valve

Technical Field

The utility model relates to the technical field of needle valves, in particular to a needle valve.

Background

The needle valve is a valve which can be accurately adjusted, and has wide application range, such as cutting distance for flame cutting, a knob for adjusting flame temperature is the needle valve, the instrument needle valve is an important component in an instrument measuring pipeline system and mainly comprises a stop valve and a ball valve, the functions of the stop valve and the ball valve are used for opening or cutting off a pipeline passage, a valve clack of the needle valve is usually integrated with a valve rod, and the valve clack is provided with a needle head which is matched with a sealing surface of a valve body and has high accuracy. The needle valve head and the valve body sealing surface inclined plane are in line contact, so that the contact surface is reduced, the leakage rate of the valve is further reduced, and the needle valve can bear higher pressure than other types of valves and has good sealing performance, so that the needle valve is generally used for sealing gas or liquid media with smaller flow and higher pressure.

However, in the installation process of the needle valve, the needle valve is clamped on a bench vice by the traditional method, a threading die is sleeved on the outer side wall of the needle valve, and then the threading die needs to be rotated for a long time to clamp the needle valve, so that the labor intensity of workers is high, the clamping effect is poor, and the practicability of the clamping device is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a needle valve that solves the problems set forth above in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: a needle valve comprises a clamping box, wherein the upper end of the clamping box is slidably connected with a toothed plate, one end of the toothed plate is connected with a first gear in a meshed manner, one end of the first gear is connected with a second gear in a meshed manner, a threaded column is fixedly connected to the inner wall of the second gear, two ends of the threaded column are rotatably connected with the clamping box, a threaded sleeve is connected to the outer wall of the lower end of the threaded column in a threaded manner, first connecting columns are hinged to two sides of the threaded sleeve, the lower end of each first connecting column is rotatably connected with a push column, one end of the push column penetrates through the clamping box and is slidably connected with the clamping box, one end of the push column is fixedly connected with a clamping plate, two symmetrically-distributed anti-collision boxes are fixedly connected to two ends of the clamping box, one end of each anti-collision box is slidably connected with an anti-collision plate, one side of each anti-collision plate is rotatably connected with two symmetrically-distributed elastic rings through a first connecting block, two the lower extreme of elasticity ring all rotates to be connected on the second connecting block, the first slide of bottom fixedly connected with of second connecting block, the both ends and the crashproof case sliding connection of first slide, two the equal fixedly connected with second slide of one end of elasticity ring, second slide and crashproof case sliding connection.

In a preferred embodiment: the lower extreme fixedly connected with of first slide two symmetric distribution's third connecting block, the lower extreme of third connecting block rotates and is connected with the second spliced pole, the lower extreme of second spliced pole rotates and is connected with the fourth connecting block, fourth connecting block and crashproof case sliding connection, the first spring of fixedly connected with between crashproof case and the first slide.

In a preferred embodiment: one end fixedly connected with second spring of second slide, the one end and the crashproof case fixed connection of second spring, through the setting of second spring, further strengthened the effect of anticollision.

In a preferred embodiment: fixedly connected with flexible post between first connecting block and the second connecting block, fixedly connected with third spring on the outer wall of flexible post through the setting of flexible post, has both increased the stability of elastic ring, has also increased buffering effect.

In a preferred embodiment: rotate on the inner wall of first gear and be connected with the support column, be equipped with the through-hole on the post that pushes away, the support column run through the through-hole and with centre gripping case fixed connection, through the setting of through-hole, both increased the stability of first gear, can avoid again causing the damage of device.

In a preferred embodiment: the lower extreme fixedly connected with fourth spring of pinion rack, the lower extreme and the centre gripping case fixed connection of fourth spring, the top of pinion rack is equipped with the needle type valve body, through the setting of fourth spring, has made things convenient for the removal of pinion rack.

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

1. according to the utility model, through the arrangement of the toothed plate, the first gear, the second gear, the threaded column, the threaded sleeve, the first connecting column, the pushing column and the clamping plate, the clamping stability of the needle valve body after installation is increased, the labor intensity of workers is reduced, the practicability of the clamping device is increased, and through the arrangement of the through hole, the stability of the first gear is increased, and the damage to the device can be avoided.

2. According to the utility model, through the arrangement of the anti-collision plate, the elastic ring, the second sliding plate, the second spring and the telescopic column, an anti-collision buffer effect is achieved, the use efficiency of the device is increased, the damage to the device is avoided, and through the arrangement of the first sliding plate, the second connecting column and the first spring, the anti-collision effect is further increased, and the service life of the needle type valve body is prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an overall external top view schematic of the present invention;

FIG. 3 is a schematic view of the interior of the crash box of the present invention;

FIG. 4 is a schematic perspective view of the upper end of the push rod of the present invention;

in the figure: the anti-collision valve comprises a clamping box 1, a toothed plate 2, a first gear 3, a second gear 4, a threaded column 5, a threaded sleeve 6, a first connecting column 7, a pushing column 8, a clamping plate 9, an anti-collision box 10, an anti-collision plate 11, a first connecting block 12, an elastic ring 13, a second connecting block 14, a first sliding plate 15, a second sliding plate 16, a third connecting block 17, a second connecting column 18, a fourth connecting block 19, a first spring 20, a second spring 21, a telescopic column 22, a through hole 23 and a needle-shaped valve body 24.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-4, the present invention provides the following technical solutions: a needle valve comprises a clamping box 1, wherein the upper end of the clamping box 1 is slidably connected with a toothed plate 2, one end of the toothed plate 2 is connected with a first gear 3 in a meshed manner, one end of the first gear 3 is connected with a second gear 4 in a meshed manner, a threaded column 5 is fixedly connected to the inner wall of the second gear 4, two ends of the threaded column 5 are rotatably connected with the clamping box 1, a threaded sleeve 6 is connected to the outer wall of the lower end of the threaded column 5 in a threaded manner, first connecting columns 7 are hinged to two sides of the threaded sleeve 6, the lower end of each first connecting column 7 is rotatably connected with a push column 8, one end of each push column 8 penetrates through the clamping box 1 and is slidably connected with the clamping box 1, one end of each push column 8 is fixedly connected with a clamping plate 9, two symmetrically distributed anti-collision boxes 10 are fixedly connected to two ends of the clamping box 1, one end of each anti-collision box 10 is slidably connected with an anti-collision plate 11, one side of anticollision board 11 is rotated through first connecting block 12 and is connected with the elastic ring 13 of two symmetric distributions, two the lower extreme of elastic ring 13 all rotates and connects on second connecting block 14, the first slide 15 of bottom fixedly connected with of second connecting block 14, the both ends and the crashproof case 10 sliding connection of first slide 15, two the equal fixedly connected with second slide 16 of one end of elastic ring 13, second slide 16 and crashproof case 10 sliding connection.

Further, the lower extreme fixedly connected with of first slide 15 has two symmetric distributions's third connecting block 17, the lower extreme of third connecting block 17 rotates and is connected with second spliced pole 18, the lower extreme of second spliced pole 18 rotates and is connected with fourth connecting block 19, fourth connecting block 19 and anticollision case 10 sliding connection, fixedly connected with first spring 20 between anticollision case 10 and the first slide 15.

Furthermore, one end of the second sliding plate 16 is fixedly connected with a second spring 21, one end of the second spring 21 is fixedly connected with the anti-collision box 10, and the anti-collision effect is further enhanced through the arrangement of the second spring.

Further, fixedly connected with flexible post 22 between first connecting block 12 and the second connecting block 14, fixedly connected with third spring on the outer wall of flexible post 22 through the setting of flexible post, has both increased the stability of elastic ring, has also increased buffering effect.

Further, it is connected with the support column to rotate on the inner wall of first gear 3, be equipped with through-hole 23 on the post 8 that pushes away, the support column run through-hole 23 and with centre gripping case 1 fixed connection, through the setting of through-hole, both increased the stability of first gear, can avoid again causing the damage of device.

Further, the lower extreme fixedly connected with fourth spring of pinion rack 2, the lower extreme and the centre gripping case 1 fixed connection of fourth spring, the top of pinion rack 2 is equipped with needle type valve body 24, through the setting of fourth spring, has made things convenient for the removal of pinion rack.

The working principle of the utility model is as follows: when the needle valve body 24 is used, the needle valve body 24 is arranged in the groove of the clamping box 1, the toothed plate 2 is driven to move along with the movement of the needle valve body 24, the toothed plate 2 moves to drive the first gear 3 to rotate, the first gear 3 rotates to drive the second gear 4 to rotate, the second gear 4 rotates to drive the threaded column 5 to rotate, and further drive the threaded sleeve 6 to move upwards, the threaded sleeve 6 moves upwards to drive the two push columns 8 to move towards each other through the first connecting column 7, and further drive the two clamping plates 9 to clamp the needle valve body 24, when the needle valve body 24 needs to be disassembled, the needle valve body 24 can be taken out only by manually rotating the threaded column 5, when the clamping box 1 is impacted due to an accident factor, the anti-collision plate 11 starts to move, the anti-collision plate 11 moves to drive the first sliding plate 15 to slide through the first connecting block 12, the telescopic column 22 and the second connecting block 14, the first connecting block 15 slides to drive the fourth connecting block 19 to move through the second connecting block 18, and then drive the compression of fifth spring, the removal of first slide 15 drives first spring 20 flexible simultaneously, play the first layer cushioning effect, the removal of crashproof board 11 drives two elastic ring 13 and begins the compression simultaneously, second slide 16 begins to slide, second slide 16 removes and drives second spring 21 and begins the compression, elastic ring 13 compression drives flexible post 22 and begins the compression simultaneously, the third spring begins to compress and plays the second layer cushioning effect, and then can avoid causing needle type valve body 24 to suffer damage, and then lead to needle type valve body 24's life to reduce.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle valve comprising a clamping box (1), characterized in that: the upper end of the clamping box (1) is slidably connected with a toothed plate (2), one end of the toothed plate (2) is connected with a first gear (3) in a meshed manner, one end of the first gear (3) is connected with a second gear (4) in a meshed manner, a threaded column (5) is fixedly connected to the inner wall of the second gear (4), two ends of the threaded column (5) are rotatably connected with the clamping box (1), a threaded sleeve (6) is connected to the outer wall of the lower end of the threaded column (5) in a threaded manner, first connecting columns (7) are hinged to two sides of the threaded sleeve (6), a push column (8) is rotatably connected to the lower end of the first connecting column (7), one end of the push column (8) penetrates through the clamping box (1) and is slidably connected with the clamping box (1), one end of the push column (8) is fixedly connected with a clamping plate (9), two symmetrically distributed anti-collision boxes (10) are fixedly connected to two ends of the clamping box (1), the one end sliding connection of anticollision case (10) has anticollision board (11), one side of anticollision board (11) is rotated through first connecting block (12) and is connected with elastic ring (13) of two symmetric distributions, two the lower extreme of elastic ring (13) is all rotated and is connected on second connecting block (14), the first slide of bottom fixedly connected with (15) of second connecting block (14), the both ends and anticollision case (10) sliding connection of first slide (15), two the equal fixedly connected with second slide (16) of one end of elastic ring (13), second slide (16) and anticollision case (10) sliding connection.

2. A needle valve as defined in claim 1, wherein: the lower extreme fixedly connected with third connecting block (17) of two symmetric distributions of first slide (15), the lower extreme of third connecting block (17) is rotated and is connected with second spliced pole (18), the lower extreme of second spliced pole (18) is rotated and is connected with fourth connecting block (19), fourth connecting block (19) and anticollision case (10) sliding connection, the first spring (20) of fixedly connected with between anticollision case (10) and first slide (15).

3. A needle valve as defined in claim 2, wherein: one end of the second sliding plate (16) is fixedly connected with a second spring (21), and one end of the second spring (21) is fixedly connected with the anti-collision box (10).

4. A needle valve as defined in claim 1, wherein: fixedly connected with flexible post (22) between first connecting block (12) and second connecting block (14), fixedly connected with third spring on the outer wall of flexible post (22).

5. A needle valve as defined in claim 1, wherein: the inner wall of the first gear (3) is rotatably connected with a supporting column, a through hole (23) is formed in the pushing column (8), and the supporting column penetrates through the through hole (23) and is fixedly connected with the clamping box (1).

6. A needle valve as defined in claim 5, wherein: the lower extreme fixedly connected with fourth spring of pinion rack (2), the lower extreme and centre gripping case (1) fixed connection of fourth spring, the top of pinion rack (2) is equipped with needle type valve body (24).