CN212028682U

CN212028682U - Compact three-way reversing valve

Info

Publication number: CN212028682U
Application number: CN202020517925.4U
Authority: CN
Inventors: 朱海军
Original assignee: Huai'an Junbao Hydraulic Machinery Co ltd
Current assignee: Huai'an Junbao Hydraulic Machinery Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-27
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a compact three-way reversing valve, which relates to the technical field of reversing valves and comprises a valve body, wherein a connecting disc is integrally formed at the top end of the valve body, one end of the valve body is connected with a first pipeline, one end of the valve body, which is opposite to the first pipeline, is connected with a third pipeline, the front end of the valve body is also connected with a second pipeline, and simultaneously, one end of the first pipeline, the second pipeline and the third pipeline, which is opposite to the valve body, is respectively welded with a first fixing flange, a second fixing flange and a third fixing flange, through the arrangement of a positioning block, a positioning groove, a clamping groove and a spring, a plug-in structure is formed between a valve cover and the valve body, and the accurate positioning between the valve cover and the valve body can be realized without fine adjustment, the time and labor are saved, the installation efficiency between the valve cover and the valve body is effectively improved, thereby being helpful to improve, the valve body is convenient to assemble and use quickly.

Description

Compact three-way reversing valve

Technical Field

The utility model belongs to the technical field of the switching-over valve, concretely relates to compact tee bend switching-over valve.

Background

The reversing valve is a directional control valve with more than two flow forms and more than two oil ports, and is a valve for realizing communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control. The reversing valve is a direction control valve depending on the relative movement of the valve core and the valve body, and is mainly divided into a rotary valve type and a slide valve type, and is divided into two positions, three positions and the like according to the number of the working positions of the valve core staying in the valve body; the oil way connected with the valve body is divided into a two-way, a three-way, a four-way, a six-way and the like; the movement modes of the operation valve core are manual, motor, electric, hydraulic, electrohydraulic and the like.

However, the compact three-way reversing valve on the market at present has defects in the using process, such as: not setting up location structure, the accurate location when the valve body installation of not being convenient for still needs the fine setting, leads to the valve body packaging efficiency low, and consuming time is hard, influences the quick use of valve body, and in addition, when the outside pipeline is connected to the valve body, need on the other hand hold up the pipeline, and the fastener is screwed up soon to another hand and is fastened, and intensity of labour is big, and is inefficient, influences the use of being connected of valve body and outside pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact tee bend switching-over valve to the accurate location when the valve body installation of being not convenient for that proposes in solving above-mentioned background art, the packaging efficiency is low, and in addition, when the external pipeline is connected to the valve body, intensity of labour is big, and the problem of inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: a compact three-way reversing valve comprises a valve body, wherein a connecting disc is integrally formed at the top end of the valve body, a first pipeline is connected to one end of the valve body, a third pipeline is connected to one end of the valve body opposite to the first pipeline, a second pipeline is connected to the front end of the valve body, a first fixing flange, a second fixing flange and a third fixing flange are respectively welded to one ends of the first pipeline, the second pipeline and the third pipeline opposite to the valve body, a valve cover is installed at the top end of the connecting disc, a supporting frame is welded to the top end of the valve cover, a screw rod penetrates through the supporting frame, a hand wheel is fixedly connected to the top end of the screw rod through a nut, the bottom end of the screw rod extends into the valve body, mounting holes are formed in the connecting disc and the valve cover, fastening bolts are screwed in the mounting holes, and four positioning blocks distributed in an annular array are installed at the bottom of the, and spring grooves are formed in the four positioning blocks, springs are arranged in the spring grooves, the two ends of each spring are connected with clamping blocks capable of extending to the two sides of the outside of the positioning block through a movable plate, meanwhile, positioning grooves corresponding to the four positioning blocks in a one-to-one mode are formed in the top of the connecting disc, and clamping grooves matched with the clamping blocks are symmetrically formed in the two sides of the inner wall of each positioning groove.

Preferably, four fixing holes distributed in an annular array are formed in the second fixing flange, four limiting grooves distributed in an annular array are formed in one end, opposite to the valve body, of the second fixing flange, the limiting grooves and the four fixing holes are distributed in a staggered mode, and straight-line sliding grooves are symmetrically formed in two sides of the inner wall of each limiting groove.

Preferably, the first fixing flange and the third fixing flange are consistent with the second fixing flange in structure.

Preferably, the corners of the positioning block opposite to one end of the valve cover are all transited by arc chamfers to form arc parts with smooth surface walls.

Preferably, a telescopic cylinder is further arranged inside the spring groove, the telescopic cylinder comprises an inner cylinder and an outer cylinder, the end parts of the inner cylinder and the outer cylinder are respectively connected with the two ends of the spring, and the spring is sleeved outside the telescopic cylinder.

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

(1) the utility model discloses a setting of locating piece, constant head tank, fixture block, draw-in groove and spring for form plug-in structure between valve gap and the valve body, and can realize accurate location between valve gap and the valve body, need not the fine setting, labour saving and time saving has effectually improved the installation effectiveness between valve gap and the valve body, thereby helps improving the packaging efficiency of valve body, the fast assembly and the use of the valve body of being convenient for.

(2) The utility model discloses a setting of spacing groove and sharp spout, and be equipped with on the flange of outside pipeline with spacing groove and sharp spout assorted stopper and sharp slider, can realize pegging graft fixedly between the three pipeline of valve body and the outside pipeline to peg graft the valve body between three pipeline, need not the manpower and hold up the valve body, effectual intensity of labour when having reduced the outside pipeline of valve body connection, and efficient, be convenient for the valve body and be connected with the quick of outside pipeline.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a top view of the connection pad of the present invention;

fig. 4 is a bottom view of the valve cover of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 1;

in the figure: 1-hand wheel; 2-a screw; 3-a support frame; 4-fastening bolts; 5-a first fixed flange; 6-a first conduit; 7-a limiting groove; 8-a second conduit; 9-a second fixed flange; 10-a fixation hole; 11-a third conduit; 12-a third fixed flange; 13-a connecting disc; 14-positioning blocks; 15-valve cover; 16-a linear chute; 17-a positioning groove; 18-a card slot; 19-mounting holes; 20-fixture block; 21-a spring; 22-valve body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a compact three-way reversing valve comprises a valve body 22, a connecting disc 13 is integrally formed at the top end of the valve body 22, one end of the valve body 22 is connected with a first pipeline 6, one end of the valve body 22 opposite to the first pipeline 6 is connected with a third pipeline 11, the front end of the valve body 22 is also connected with a second pipeline 8, meanwhile, one ends of the first pipeline 6, the second pipeline 8 and the third pipeline 11 opposite to the valve body 22 are respectively welded with a first fixing flange 5, a second fixing flange 9 and a third fixing flange 12, the top end of the connecting disc 13 is provided with a valve cover 15, the top end of the valve cover 15 is welded with a support frame 3, a screw rod 2 penetrates through the interior of the support frame 3, the top end of the screw rod 2 is fixedly connected with a hand wheel 1 through a nut, the bottom end of the screw rod 2 extends to the interior of the valve body 22, mounting holes 19 are formed in the connecting disc 13 and the valve cover, meanwhile, four positioning blocks 14 distributed in an annular array are mounted at the bottom of the valve cover 15, spring grooves are formed in the four positioning blocks 14, springs 21 are formed in the four spring grooves, two ends of each spring 21 are connected with clamping blocks 20 capable of extending to two sides of the outside of the positioning block 14 through a movable plate, positioning grooves 17 corresponding to the four positioning blocks 14 one to one are formed in the top of the connecting disc 13, clamping grooves 18 matched with the clamping blocks 20 are symmetrically formed in two sides of the inner wall of each positioning groove 17, when the valve body 22 is maintained, a user can detach the fastening bolt 4 and lift the valve cover 15 upwards, so that the clamping blocks 20 contract under the action of the springs 21 until the clamping grooves 18 are separated, the positioning blocks 14 are separated from the positioning grooves 17, the valve cover 15 is detached, the valve body 22 is maintained, after maintenance is completed, the user can insert the valve cover 15 on the connecting disc 13 through the positioning blocks 14 and the positioning grooves, with the quick location of realization valve gap 15 and connection pad 13, then the user is with fastening bolt 4 precession mounting hole 19 in to fasten valve gap 15 and connection pad 13, thereby realize the quick installation of valve gap 15 and connection pad 13, the effectual dismouting efficiency that improves valve body 22, so that the maintenance of valve body 22.

Further, the second fixing flange 9 is internally provided with four fixing holes 10 distributed in an annular array, one end of the second fixing flange 9 opposite to the valve body 22 is further provided with four limiting grooves 7 distributed in an annular array, the limiting grooves 7 are matched with limiting blocks on a connecting flange of an external pipeline, the four limiting grooves 7 are distributed with the four fixing holes 10 in a staggered manner, two sides of the inner wall of each limiting groove 7 are symmetrically provided with linear sliding grooves 16, the linear sliding grooves 16 are matched with linear sliding blocks on two sides of a limiting block on a connecting flange of the external pipeline, the first fixing flange 5 and the third fixing flange 12 are consistent with the structure of the second fixing flange 9, when the valve body 22 is connected with the external pipeline, a user can align the limiting lugs on the flange of the external pipeline to the limiting grooves 7 and insert the limiting lugs, so that the linear sliding blocks on two sides of the limiting lugs slide along the inner parts of the linear sliding grooves, until first mounting flange 5, second mounting flange 9 and third mounting flange 12 peg graft with the flange of outside pipeline respectively, then the user passes fixed orifices 10 through the fastener to fasten first mounting flange 5, second mounting flange 9 and third mounting flange 12 and the flange of outside pipeline respectively, in order to realize first pipeline 6, second pipeline 8 and third pipeline 11 and be connected with the outside pipeline respectively, thereby realize the quick connection of valve body 22 and outside pipeline, help the installation of valve body 22 to use.

It should be noted that the opposite corners of the positioning block 14 opposite to one end of the valve cover 15 are all transited by arc chamfers to form smooth arc portions on the surface wall, so that the positioning block 14 can be rapidly inserted into the positioning groove 17.

Further, the inside in spring groove still is provided with a telescopic cylinder, and the telescopic cylinder includes inner tube and urceolus, and the tip of inner tube and urceolus is connected with spring 21's both ends respectively, and the outside of telescopic cylinder is located to spring 21 cover simultaneously, and at the flexible in-process of spring 21, telescopic cylinder follows spring 21's flexible and stretch out and draw back to can increase the stability when spring 21 stretches out and draws back, help spring 21 to stably drive fixture block 20 and remove.

The utility model discloses a theory of operation and use flow: when the utility model is used, a user can connect the first pipeline 6, the second pipeline 8 and the third pipeline 11 with the external pipeline through the first fixing flange 5, the second fixing flange 9 and the third fixing flange 12 respectively, at this time, the user can align and insert the limiting lug on the external pipeline flange with the limiting groove 7, so that the linear sliders at the two sides of the limiting lug slide along the inside of the linear chute until the first fixing flange 5, the second fixing flange 9 and the third fixing flange 12 are respectively inserted with the flange of the external pipeline, then the user passes through the fixing hole 10 through the fastener to fasten the first fixing flange 5, the second fixing flange 9 and the third fixing flange 12 with the flange of the external pipeline respectively, thereby realizing that the first pipeline 6, the second pipeline 8 and the third pipeline 11 are respectively connected with the external pipeline, then the user can rotate the screw rod 2 through the hand wheel 1, the screw rod 2 rotates to drive a valve rod in the valve body 22, the valve rod drives a valve core in the valve body 22 to rotate, so as to switch the opening or closing of the first pipeline 6, the second pipeline 8 and the third pipeline 11, thereby realizing the reversing of the valve body 22, when the valve body 22 is maintained, a user can detach the fastening bolt 4 and lift the valve cover 15 upwards, so that the fixture block 20 is contracted under the action of the spring 21 until the fixture block is separated from the clamping groove 18, so that the positioning block 14 is separated from the positioning groove 17, thereby realizing the detachment of the valve cover 15, so as to maintain the valve body 22, after the maintenance is finished, the user can insert the valve cover 15 on the connecting disc 13 through the positioning block 14 and the positioning groove 17 to realize the quick positioning of the valve cover 15 and the connecting disc 13, and then the user can screw the fastening bolt 4 into the mounting hole 19 to fasten the valve cover 15 and the connecting disc 13, thereby realizing the quick, the disassembly and assembly efficiency of the valve body 22 is effectively improved, so that the valve body 22 can be maintained conveniently.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compact three-way reversing valve which characterized in that: comprises a valve body (22), a connecting disc (13) is integrally formed at the top end of the valve body (22), a first pipeline (6) is connected to one end of the valve body (22) relative to the first pipeline (6), a third pipeline (11) is connected to the front end of the valve body (22), a second pipeline (8) is further connected to the front end of the valve body (22), a first fixing flange (5), a second fixing flange (9) and a third fixing flange (12) are respectively welded to one ends of the first pipeline (6), the second pipeline (8) and the third pipeline (11) relative to the valve body (22), a valve cover (15) is installed at the top end of the connecting disc (13), a support frame (3) is welded to the top end of the valve cover (15), a screw rod (2) penetrates through the support frame (3), and a hand wheel (1) is fixedly connected to the top end of the screw rod (2) through a nut, the bottom end of the screw rod (2) extends to the inside of the valve body (22), mounting holes (19) are formed in the connecting disc (13) and the valve cover (15), fastening bolts (4) are screwed in the mounting holes (19), meanwhile, the bottom of the valve cover (15) is provided with four positioning blocks (14) distributed in an annular array, spring grooves are arranged inside the four positioning blocks (14), springs (21) are arranged inside the four spring grooves, two ends of the four springs (21) are connected with fixture blocks (20) which can extend to two sides of the outside of the positioning block (14) through the movable plate, meanwhile, the top of the connecting disc (13) is provided with positioning grooves (17) which are in one-to-one correspondence with the four positioning blocks (14), and the two sides of the inner wall of the four positioning grooves (17) are symmetrically provided with clamping grooves (18) matched with the clamping blocks (20).

2. A compact three-way reversing valve according to claim 1, wherein: four fixed orificess (10) that are the annular array and distribute are seted up to the inside of second mounting flange (9), and second mounting flange (9) still sets up four spacing grooves (7) that are the annular array and distribute for the one end of valve body (22), and four simultaneously spacing groove (7) and four fixed orificess (10) crisscross distributions, and the equal symmetry in inner wall both sides of four spacing grooves (7) has seted up sharp spout (16).

3. A compact three-way reversing valve according to claim 2, wherein: the first fixing flange (5) and the third fixing flange (12) are consistent with the second fixing flange (9) in structure.

4. A compact three-way reversing valve according to claim 1, wherein: the opposite corners of one end of the positioning block (14) relative to the valve cover (15) are in arc chamfer transition to form arc parts with smooth surface walls.

5. A compact three-way reversing valve according to claim 1, wherein: the spring groove is characterized in that a telescopic cylinder is further arranged inside the spring groove and comprises an inner cylinder and an outer cylinder, the end portions of the inner cylinder and the outer cylinder are respectively connected with the two ends of a spring (21), and meanwhile the spring (21) is sleeved outside the telescopic cylinder.