CN208503604U - Double spool by-passing valve - Google Patents

Abstract

The utility model discloses double spool by-passing valves, belong to pipeline assembly field, including gear pump and by-pass valve body, sealing ring is provided between the gear pump and the by-pass valve body, the gear pump and the sealing ring, which contradict, to be connected, the by-pass valve body and the sealing ring, which contradict, to be connected, the side of the gear pump is provided with pump housing assembly bolt, the gear pump and pump housing assembly bolt pass through screw thread twist-on, the gear pump other side is provided with driving wheel, the gear pump and the driving wheel are formed by Screw assembly, positioning pin is provided on the driving wheel, the driving wheel and the positioning pin are formed by Screw assembly, the driving wheel is connected by boss with shaft.Beneficial effect is: 1, there are two spools for tool, targetedly can adjust service pipe pressure with the parameter of acquisition according to actual needs；2, good seal performance, it is safer；3, applied widely, securely, long working life is low in cost for assembly.

Description

Double spool by-passing valve

Technical field

The utility model relates to pipelines to assemble field, more particularly to double spool by-passing valve.

Background technique

By-passing valve is a kind of on the bypass pipe of inlet valve pipeline section, the valve to hydraulic pressure before and after water-filling balance inlet valve Door, by-passing valve are installed between collection, water segregator on bypass pipe, when user's side section runs or becomes freight volume operation, flow system flow Become smaller, pressure difference is caused to increase, when pressure difference exceeds setting value, valve is automatically opened, and partial discharge is from this process, to guarantee unit stream When amount is not less than limitation.

To improve system stability when traditional check valve design of Hydraulic System, influence of the load variation to speed is reduced, Sacrificing part, we want the function of realizing or increase additional Hydraulic Elements, but the increase of element in this way can drop again Poor efficiency, waste of energy;The reliability of whole system can be also made to reduce, increase cost, simultaneously because executing agency's liquid in-out Pressure oil is controlled by a spool, and individually controlling executing agency's pressure at both sides is impossible, general applicability deficiency.

Utility model content

The purpose of this utility model is that solve the above-mentioned problems and provides double spool by-passing valve, and the utility model is logical Double spool is crossed, accurate control pressure at both sides is poor, adjusts feed flow.

The utility model achieves the above object through the following technical schemes:

Double spool by-passing valve, including gear pump and by-pass valve body, are provided between the gear pump and the by-pass valve body Sealing ring, the gear pump and the sealing ring, which contradict, to be connected, and the by-pass valve body and the sealing ring are contradicted and connected, the tooth The side of wheel pump is provided with pump housing assembly bolt, and the gear pump and pump housing assembly bolt pass through screw thread twist-on, the gear pump The other side is provided with driving wheel, the gear pump and the driving wheel and is formed by Screw assembly, is provided on the driving wheel Positioning pin, the driving wheel and the positioning pin are formed by Screw assembly, and the driving wheel is connected by boss with shaft, The shaft and the driving wheel are sequentially connected, and the driving wheel is connect with the gear pump transmission, logical below the gear pump It crosses connection frame to be connected with assembly pedestal, the gear pump, the connection frame, the assembly base integrated casting and forming, institute It states and is provided with assembly jaw on assembly pedestal, the assembly jaw is molded on the assembly pedestal, the by-pass valve body end It is provided with valve opening air mouth, the by-pass valve body is internally provided with the first spool, and the by-pass valve body and first spool are embedding Set is assembled together, and fixing bolt is provided among first spool, is provided with the second spool, institute below first spool By-pass valve body is stated to be nestedly assemblied in together with second spool.

In above structure, first spool and second spool can be accessed service pipe respectively by staff, And by the drive apparatus and control equipment outside shaft access, when external control devices detect the pressure in service pipe Variation, when being regulated and controled, driving external impetus equipment drives the driving wheel to rotate by the shaft, to pass through institute Stating gear pump drives first spool and second spool to change connected state, thus to the working condition in service pipe Regulated and controled.

In order to further increase the service performance of double spool by-passing valve described in the utility model, the pump housing assembly bolt is interior The quantity of hex bolts, the pump housing assembly bolt is six.

So set, helping to assemble bolt by the pump housing for the gear pump molding assembly, guarantee the gear pump Shell sizes strength and stability.

In order to further increase the service performance of double spool by-passing valve described in the utility model, among second spool It is provided with the fixing bolt.

So set, helping to provide first spool, second spool by the fixing bolt fixed Effect.

In order to further increase the service performance of double spool by-passing valve described in the utility model, the by-pass valve body with it is described The connection of valve opening air mouth.

So set, helping to be pumped into outside air by the valve opening air mouth, pipeline pressure is adjusted.

In order to further increase the service performance of double spool by-passing valve described in the utility model, the assembly jaw is half a month The quantity of the structure of shape, the assembly jaw is two.

So set, helping that the assembly pedestal is fixed on required position by the assembly jaw, this reality is avoided It is shaken during the work time with novel.

In order to further increase the service performance of double spool by-passing valve described in the utility model, the driving wheel with it is described convex Platform integration casting and forming.

So set, helping to improve the bonding strength of the driving wheel Yu the boss, while being also convenient for adding on a large scale Work production.

In order to further increase the service performance of double spool by-passing valve described in the utility model, the material of the sealing ring is Vulcanized rubber, the radius size of the sealing ring are consistent with the by-pass valve body.

So set, helping to improve the sealing effect between the gear pump and the by-pass valve body.

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

1, there are two spools for tool, targetedly can adjust service pipe pressure with the parameter of acquisition according to actual needs；

2, good seal performance, it is safer；

3, applied widely, securely, long working life is low in cost for assembly.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the three-dimensional view of double spool by-passing valve described in the utility model；

Fig. 2 is the main view of double spool by-passing valve described in the utility model；

Fig. 3 is the top view of double spool by-passing valve described in the utility model；

Fig. 4 is the right view of double spool by-passing valve described in the utility model.

The reference numerals are as follows:

1, gear pump；2, the pump housing assembles bolt；3, by-pass valve body；4, fixing bolt；5, the first spool；6, valve opening air mouth； 7, the second spool；8, pedestal is assembled；9, connection frame；10, jaw is assembled；11, driving wheel；12, positioning pin；13, boss；14, turn Axis；15, sealing ring.

Specific embodiment

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

Embodiment one:

As shown in Figs 1-4, double spool by-passing valve, including gear pump 1 and by-pass valve body 3, gear pump 1 and by-pass valve body 3 it Between be provided with sealing ring 15, gear pump 1 and sealing ring 15 are contradicted and are connected, and by-pass valve body 3 and sealing ring 15 are contradicted and connected, sealing ring 15 the phenomenon that can providing sealing function for the utility model, prevent gas leakage, leakage, the side of gear pump 1 is provided with pump Body assembles bolt 2, and by screw thread twist-on, 1 other side of gear pump is provided with driving wheel 11, gear pump for gear pump 1 and pump housing assembly bolt 2 1 is formed with driving wheel 11 by Screw assembly, and positioning pin 12 is provided on driving wheel 11, and driving wheel 11 and positioning pin 12 pass through spiral shell Line molding assembly, positioning pin 12 can provide the effect of positioning for the assembly of driving wheel 11, and driving wheel 11 is by boss 13 and turns Axis 14 is connected, and shaft 14 and driving wheel 11 are sequentially connected, and driving wheel 11 and gear pump 1 are sequentially connected, and passes through below gear pump 1 Connection frame 9 is connected with assembly pedestal 8, and gear pump 1, connection frame 9, the integrated casting and forming of assembly pedestal 8 are assembled on pedestal 8 It is provided with assembly jaw 10, assembly jaw 10 is molded on assembly pedestal 8, and assembly jaw 10 and assembly pedestal 8 can be this reality The effect fixed with novel offer, the phenomenon that avoiding the utility model from being displaced during the work time, 3 end of by-pass valve body is set It is equipped with valve opening air mouth 6, by-pass valve body 3 is internally provided with the first spool 5, and by-pass valve body 3 and the first spool 5 are nestedly assemblied in one It rises, fixing bolt 4 is provided among the first spool 5, the second spool 7, by-pass valve body 3 and second are provided with below the first spool 5 Spool 7 is nestedly assemblied in together.

Embodiment two:

This implementation and the difference of embodiment one are: in the present embodiment, it is hexagon socket head cap screw, pump housing dress that the pump housing, which assembles bolt 2, Quantity with bolt 2 is six, and a fixing bolt 4 is also equipped among the second spool 7, and by-pass valve body 3 and valve opening air mouth 6 connect Logical, assembly jaw 10 is the structure of half moon shape, and the quantity of assembly jaw 10 is two.

The utility model concrete operating principle are as follows: the first spool 5 and the second spool 7 can be accessed work respectively by staff Make pipeline, and shaft 14 is accessed to external drive apparatus and control equipment, when external control devices detect in service pipe Pressure change, when being regulated and controled, driving external impetus equipment by shaft 14 drive driving wheel 11 rotate, to pass through Gear pump 1 drives the first spool 5 and the second spool 7 to change connected state, to adjust to the working condition in service pipe Control.

The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change And improvement, these various changes and improvements fall within the scope of the claimed invention.

Claims (7)

1. double spool by-passing valve, it is characterised in that: including gear pump (1) and by-pass valve body (3), the gear pump (1) with it is described It is provided between by-pass valve body (3) sealing ring (15), the side of the gear pump (1) is provided with pump housing assembly bolt (2), the tooth By screw thread twist-on, gear pump (1) other side is provided with driving wheel (11), institute for wheel pump (1) and pump housing assembly bolt (2) It states gear pump (1) and the driving wheel (11) to form by Screw assembly, is provided with positioning pin (12) on the driving wheel (11), The driving wheel (11) and the positioning pin (12) are formed by Screw assembly, and the driving wheel (11) is by boss (13) and turns Axis (14) is connected, and the shaft (14) and the driving wheel (11) are sequentially connected, the driving wheel (11) and the gear pump (1) it is sequentially connected, is connected by connection frame (9) with assembly pedestal (8) below the gear pump (1), the assembly pedestal (8) On be provided with assembly jaw (10), the assembly jaw (10) is molded on the assembly pedestal (8), the by-pass valve body (3) End is provided with valve opening air mouth (6), and the by-pass valve body (3) is internally provided with the first spool (5), the by-pass valve body (3) It is nestedly assemblied in together, is provided with fixing bolt (4) among first spool (5), described first with first spool (5) It is provided with the second spool (7) below spool (5), the by-pass valve body (3) and second spool (7) are nestedly assemblied in together.

2. double spool by-passing valve according to claim 1, it is characterised in that: pump housing assembly bolt (2) is interior hexagonal spiral shell Bolt, the quantity of pump housing assembly bolt (2) are six.

3. double spool by-passing valve according to claim 1, it is characterised in that: be also equipped among second spool (7) One fixing bolt (4).

4. double spool by-passing valve according to claim 1, it is characterised in that: the by-pass valve body (3) and the valve opening are empty Gas nozzle (6) connection.

5. double spool by-passing valve according to claim 1, it is characterised in that: assembly jaw (10) is half moon shape Structure, the quantity of assembly jaw (10) are two.

6. double spool by-passing valve according to claim 1, it is characterised in that: the driving wheel (11) and the boss (13) Integrated casting and forming.

7. double spool by-passing valve according to claim 1, it is characterised in that: the material of the sealing ring (15) is ripe rubber Glue, radius size and the by-pass valve body (3) of the sealing ring (15) are consistent.