CN208763877U - Solution pump with safety valve - Google Patents

Abstract

The utility model provides a kind of solution pump with safety valve, solution pump pump housing top is provided with the peep hole that can be opened and closed, drainage pipe is installed in the solution pump chamber, one end of the drainage pipe is mounted on the inner wall of the solution pump chamber, and be connected with the refluxing opening of safety valve, the other end of the drainage pipe extends upwardly to below the peep hole.The interior of the utility model solution pump intracavitary is equipped with drainage pipe, drainage pipe by through safety valve overflow or unload stream liquid be drained to upwards peep hole lower part place be discharged, open overflow or reflux state that peep hole can be clear that safety valve, both the state of safety valve can be judged under the premise of not dismantling safety valve, and the deficiency of the illumination in solution pump inner cavity is also overcomed, while can also observe the circulatory condition of hydraulic oil in solution pump.

Description

Solution pump with safety valve

Technical field

The utility model relates to solution pump apparatus field, especially a kind of solution pump with safety valve.

Background technique

Safety valve directly decides the safety of whole system as the important spare part in solution pump, working condition, If safety valve blocking will bring serious safety problem, therefore need to understand safety in time in the use process of solution pump The working condition of valve.However peace is recognized under the premise of not dismantling safety valve there is no very effective method in the prior art Whether the inside of full valve blocks, it is therefore desirable to design a kind of novel solution pump, can under the premise of not dismantling safety valve, with When be recognized that the working condition of safety valve.

Utility model content

In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of with the molten of safety valve Liquid pump can not understand safety valve working condition for solving the problem of in the case where not dismantling safety valve in the prior art.

In order to achieve the above objects and other related objects, the utility model provides a kind of solution pump with safety valve, institute It states solution pump pump housing top and is provided with the peep hole that can be opened and closed, drainage pipe is installed in the solution pump chamber, institute The one end for stating drainage pipe is mounted on the inner wall of the solution pump chamber, and is connected with the refluxing opening of safety valve, the drainage The other end of pipeline extends upwardly to below the peep hole.

Preferably, the safety valve includes fixed valve base, mobile spool and elastic compression body；Setting in the fixed valve base There is the chamber that can install the mobile spool, be provided with mounting groove on the bottom wall of the chamber, on the bottom wall of the mounting groove It is provided with flow inlet, is provided with refluxing opening on the downside wall body of the mounting groove；The mobile spool includes movable valve base and float, institute The guide holder for being provided on movable valve base and matching with the mounting groove is stated, the lower part of the guide holder is provided with seal, institute It states seal bottom and is provided with the overflow ducts for penetrating through the entire movable valve base upwards, be provided with float on the overflow ducts Room, be provided between the side wall of the float chamber and the float air-flow can by gap, the float is mounted on described It can be moved up the overflow ducts mouth of the float chamber upper wall in float chamber and under the action of pressure in the overflow ducts of lower part Sealing blocking；The guide holder correspondence is mounted in the mounting groove, and can move linearly up and down along the mounting groove will be described Seal is moved away from or is blocked on the flow inlet；It is provided with and unloads between the refluxing opening in the chamber and the mounting groove Circulation road；The elastic compression body includes spring and fastening body, and the fastening body is mounted on the top of the chamber, the spring Be mounted in the chamber, the upper end of the spring compresses and is resisted against on the fastening body, the lower end of the spring compress against On the movable valve base top.

Further, the overflow ducts mouth of the float chamber upper wall or lower wall is circle, and the float is valve ball, described to overflow The diameter at circulation road junction is respectively less than the diameter d of the valve ball.

Further, the diameter of the overflow ducts mouth of the float chamber upper wall or lower wall is 0.5-0.7d.

Further, the height of the float chamber is 1.6-1.8d.

Further, the refluxing opening is circle, and the sealing surface of the seal is spherical surface.

Further, the fastening body, which is connected through a screw thread, is mounted in the chamber, and the top of the fastening body is set Be equipped with can be connected with screwing tool screw portion.

Further, the fixed valve base includes upper valve base and lower valve base, and the mounting groove is arranged on the lower valve base Portion, the chamber upper valve base up and down, the lower part of the upper valve base are provided with lower valve base mounting hole, outside the lower valve base Wall interference is mounted in the lower valve base mounting hole.

Further, the movable valve base further includes float seat, and the lower part of the float seat, institute is arranged in the float chamber The threaded connection of float seat is stated to be installed on the guide seat.

Further, the top of the float seat is equipped with the valve pocket made of corrosion-resistant elastic material, the valve pocket On be provided with the head piece that unloads being connected with the chamber, the outer wall interference fit of the valve pocket is inserted into the inner hole of the spring In.

Further, the circulation road that unloads is the gap being arranged between the guide holder outer wall and the mounting groove.

As described above, the utility model has the solution pump of safety valve, the utility model solution is had the advantages that Pump it is interior it is intracavitary drainage pipe is installed, drainage pipe through safety valve overflow or will unload the liquid of stream and be drained under peep hole upwards The place discharge in portion, opens overflow or reflux state that peep hole can be clear that safety valve, can both not dismantle The state of safety valve is judged under the premise of safety valve, and also overcomes the deficiency of the illumination in solution pump inner cavity, simultaneously Also the circulatory condition of hydraulic oil in solution pump can be observed.

Detailed description of the invention

Fig. 1 is the overall structure figure of the utility model embodiment；

Fig. 2 is the structure chart of mobile spool in the utility model embodiment；

Fig. 3 is installation site figure of the utility model safety valve in solution pump.

In figure: 1, safety valve 2, solution pump

11, fixed valve base 12, mobile spool

13, elastic compression body 111, upper valve base

112, lower valve base 1121, flow inlet

1122, refluxing opening 1123, mounting groove

121, valve pocket 122, movable valve base

123, float 124, overflow ducts

1221, float seat 1222, guide holder

1223, seal 12211, float chamber

131, fastening body 132, spring

21, piston 22, diaphragm cavity

23, the solution pump pump housing 231, solution pump chamber

1111, chamber 24, drainage pipe

25, peep hole

Specific embodiment

Structure depicted in Figure of description, ratio, size etc., only to cooperate the revealed content of specification, with Understand for those skilled in the art and read, is not intended to limit the utility model enforceable qualifications, therefore does not have skill Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute Under the effect of capable of generating and the purpose that can reach, it should all still fall in what the revealed technology contents of the utility model can be covered In range.Meanwhile cited such as "upper", "lower", "front", "rear", " centre " term in this specification, it is merely convenient to chat That states is illustrated, rather than to limit the enforceable range of the utility model, relativeness is altered or modified, without substantive change Under more technology contents, when being also considered as the enforceable scope of the utility model.

As shown in Figure 1-3, the utility model provides a kind of solution pump with safety valve, the setting of 23 top of the solution pump pump housing There are the peep hole that can be opened and closed 25 (open or close by throat taps, be in an open state in figure, throat taps is not shown), solution Drainage pipe 24 is installed in pump chamber 231, one end of drainage pipe 24 is mounted on the inner wall of solution pump chamber 231, and with safety The refluxing opening 1122 of valve 1 is connected, and the other end of drainage pipe 24 extends upwardly to 25 lower section of peep hole.

The utility model solution pump is intracavitary to be equipped with drainage pipe 24, and drainage pipe 24 through 1 overflow of safety valve or will unload stream Liquid be drained to upwards 25 lower part of peep hole place discharge, pulling up the throat taps on peep hole 25 can be clear that The overflow of safety valve 1 or reflux state can both judge the state of safety valve 1 under the premise of not dismantling safety valve 1, And the problem of illumination deficiency in solution pump chamber 231 is also overcomed, while can also observe the circulation shape of hydraulic oil in solution pump Condition.

Safety valve in the utility model can be conventional structure in the prior art, but safety valve 1 wraps in the present embodiment Include fixed valve base 11, mobile spool 12 and elastic compression body 13113；Mobile spool 12 can be installed by being provided in fixed valve base 11 Chamber 1111, be provided with mounting groove 1123 on the bottom wall of chamber 1111, flow inlet 1121 be provided on the bottom wall of mounting groove 1123, Refluxing opening 1122 is provided on the downside wall body of mounting groove 1123；Mobile spool 12 includes movable valve base 122 and float 123, movement The guide holder 1222 to match with mounting groove 1123 is provided on valve seat 122, the lower part of guide holder 1222 is provided with seal 1223,1223 bottom of seal is provided with the overflow ducts 124 for penetrating through entire movable valve base 122 upwards, sets on overflow ducts 124 Be equipped with float chamber 12211, be provided between the side wall and float 123 of float chamber 12211 air-flow can by gap, float 123 are mounted in float chamber 12211 and can move up under the action of pressure by float chamber in lower part overflow ducts 124 The overflow ducts mouth sealing blocking of 12211 upper walls；The correspondence of guide holder 1222 is mounted in mounting groove 1123, and can be along mounting groove Seal 1223 is moved away from or is blocked on flow inlet 1121 by about 1123 linear movements；In chamber 1111 and mounting groove 1123 It is provided between refluxing opening 1122 and unloads circulation road；Elastic compression body 13113 includes spring 132 and fastening body 131, fastening body 131 It is mounted on the top of chamber 1111, spring 132 is mounted in chamber 1111, and the upper end of spring 132, which compresses, is resisted against fastening body 131 On, the lower end of spring 132, which compresses, is resisted against 122 top of movable valve base.

Safety valve 1 is mounted on the solution pump pump housing 23 when use, and make flow inlet 1121 on fixed valve base 11 with every 22 top of membrane cavity is connected, and so that the refluxing opening 1122 on safety valve 1 is connected with solution pump chamber 231, the piston in solution pump 2 21, towards when moving in plunger shaft, are entered in diaphragm cavity 22 by the minimum gas that piston 21 is brought into and are eventually collected in diaphragm cavity 22 Top, as piston 21 is further mobile, gas is upwardly into along flow inlet 1121 to overflow ducts 124, and is pushed away Dynamic float 123 moves up, to move past on float 123 after 124 mouthfuls of overflow ducts on 12211 lower wall of float chamber are opened The indoor gas of journey septation and a part of solution are out of gap between 12211 side wall of float 123 and float chamber upwards and from floating It is spilled over in the chamber 1111 on 122 top of movable valve base in the overflow ducts 124 of 12211 upside of seed cell, and is flowed eventually by unloading Channel is flow at the refluxing opening 1122 in mounting groove 1123, then flows back into 2 inner cavity of solution pump from refluxing opening 1122, to complete one A circulation.When system pressure is greater than the set value, float 123 is blocked on 124 mouthfuls of overflow ducts of 12211 top of float chamber, Mobile 12 stress of spool makes the compression of spring 132 to make guide holder 1222 that seal 1223 be driven to move up, such flow inlet 1121 It is directly connected to refluxing opening 1122 and unloads stream.The utility model can not only play the role of unloading stream, but also energy when reaching setting pressure The intracavitary micro-air of piston 21 will be entered during normal work and recycle discharge, the gas in pump is released in time, protect The stability of system pressure has been demonstrate,proved, has provided powerful guarantee for the safety and normal operation of solution pump 2.

The shape of float 123 and overflow ducts 124 is not limited in the utility model, as long as being able to achieve on float 123 It moves and under pressure by 124 mouthfuls of sealing blockings of overflow ducts on 12211 upper wall of float chamber, but in view of sphere pair The sealing of circular hole has the function of automatic centering, and cost is relatively low, so 12211 upper wall of float chamber or lower wall in the present embodiment 124 mouthfuls of overflow ducts are circle, and float 123 is valve ball, as long as 124 mouthfuls of overflow ducts of diameter is less than the straight of valve ball in principle Sealing blocking can be realized in diameter d, but in order to obtain better seal effect, 12211 upper wall of float chamber or lower wall in the present embodiment 124 mouthfuls of overflow ducts of diameter be 0.5-0.7d.

In order to so that piston 21 is brought into gas during float 123 moves up from 12211 top of float chamber overflow Drained as early as possible in circulation road 124, the height of float chamber 12211 is 1.6-1.8d in the present embodiment, this height both can guarantee gas Body is drained, and not will cause the waste of energy.

The structure of refluxing opening 1122 and seal 1223 in the utility model is not limited, as long as realization can be cooperated Sealing, but examining refluxing opening 1122 in the present embodiment is circle, and the sealing surface of seal 1223 is spherical surface, such sealing performance It can be more superior.In view of the seal 1223 in convenience the present embodiment of processing is sphere, the lower part of guide holder 1222 is set It is equipped with cylinder groove, 1223 top of seal is provided with plane, and 1223 interference of seal is mounted in cylinder groove, and upper plane is supported It leans against on the upper wall of cylinder groove.

Fastening body 131, which is connected through a screw thread, in the present embodiment is mounted in chamber 1111, and the top setting of fastening body 131 There is what can be connected with screwing tool to screw portion.

In view of the major diameter of fixed valve base 11 and movable valve base 122 is bigger, machine adds difficulty, fixed valve base in the present embodiment 11 include upper valve base 111 and lower valve base 112, and the setting of mounting groove 1123 is on 112 top of lower valve base, the upper valve up and down of chamber 1111 Seat 111, the lower part of upper valve base 111 are provided with 112 mounting hole of lower valve base, and 112 outer wall interference of lower valve base is mounted on the peace of lower valve base 112 It fills in hole.Movable valve base 122 further includes float seat 1221, and the lower part of float seat 1221, float seat is arranged in float chamber 12211 1221 threaded connections are mounted on guide holder 1222.

For the ease of dismantling, in the present embodiment, the top of float seat 1221 is equipped with the valve pocket made of nitrile rubber 121, the head piece that unloads being connected with chamber 1111 is provided on valve pocket 121, the outer wall interference fit of valve pocket 121 is inserted into spring In 132 inner hole.In this way after fastening body 131 removes, spool 12 can entirely will be moved by spring 132 and taken out, it is convenient fast It is prompt.

It to be diversified forms that circulation road is unloaded in the utility model, as long as being able to achieve the company between chamber 1111 and return port It is logical that the liquid overflowed in chamber 1111 is flowed back into solution pump chamber Room 231, but mounting groove in the present embodiment by return port 1123 be cylindrical groove, and guide holder 1222 is cylindrical body, is machined with plane on the cylindrical surface of cylindrical body, unloads circulation road and exists for setting Gap between plane and mounting groove 1123.

In conclusion the utility model structure is simple, it both can be under the premise of not dismantling safety valve to the shape of safety valve State is judged, and also overcomes the deficiency of the illumination in solution pump inner cavity, while can also observe hydraulic oil in solution pump Circulatory condition.So the utility model overcomes some practical problems in the prior art effectively to there is very high exploitation value It is worth and uses meaning.

Above embodiment is only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new Type.The utility model can be improved there are many more aspect under the premise of without prejudice to overall thought, for being familiar with this technology Personage can all be carried out modifications and changes to above-described embodiment under the spirit and scope without prejudice to the utility model.Therefore, Such as those of ordinary skill in the art is in spirit revealed without departing from the utility model and institute under technical idea All equivalent modifications or change completed, should be covered by the claim of the utility model.

Claims (10)

1. a kind of solution pump with safety valve, which is characterized in that solution pump pump housing top, which is provided with, can beat on and off The peep hole closed is equipped with drainage pipe in the solution pump chamber, and one end of the drainage pipe is mounted on the solution pump chamber Inner wall on, and be connected with the refluxing opening of safety valve, the other end of the drainage pipe extends upwardly under the peep hole Side.

2. the solution pump according to claim 1 with safety valve, which is characterized in that the safety valve includes fixed valve Seat, mobile spool and elastic compression body；The chamber that can install the mobile spool, the chamber are provided in the fixed valve base It is provided with mounting groove on the bottom wall of room, flow inlet is provided on the bottom wall of the mounting groove, is opened on the downside wall body of the mounting groove There is refluxing opening；The mobile spool includes movable valve base and float, is provided on the movable valve base and the mounting groove phase The guide holder matched, the lower part of the guide holder are provided with seal, and it is entire described that the seal bottom is provided with perforation upwards The overflow ducts of movable valve base are provided with float chamber on the overflow ducts, between the side wall of the float chamber and the float Be provided with air-flow can by gap, the float be mounted in the float chamber and can in the overflow ducts of lower part pressure It is moved up under effect by the overflow ducts mouth sealing blocking of the float chamber upper wall；The guide holder correspondence is mounted on the peace In tankage, and it can move linearly up and down along the mounting groove and the seal is moved away from or is blocked on the flow inlet；It is described It is provided between the refluxing opening in chamber and the mounting groove and unloads circulation road；The elastic compression body includes spring and compression Body, the fastening body are mounted on the top of the chamber, and the spring is mounted in the chamber, and the upper end of the spring compresses It is resisted against on the fastening body, the lower end of the spring, which compresses, is resisted against the movable valve base top.

3. the solution pump according to claim 2 with safety valve, which is characterized in that the float chamber upper wall or lower wall Overflow ducts mouth is circle, and the float is valve ball, and the diameter of the overflow ducts mouth is respectively less than the diameter d of the valve ball.

4. the solution pump according to claim 3 with safety valve, which is characterized in that the float chamber upper wall or lower wall The diameter of overflow ducts mouth is 0.5-0.7d.

5. the solution pump according to claim 3 with safety valve, which is characterized in that the height of the float chamber is 1.6- 1.8d。

6. the solution pump according to claim 2 with safety valve, which is characterized in that the refluxing opening is circle, described The sealing surface of seal is spherical surface.

7. the solution pump according to claim 2 with safety valve, which is characterized in that the fastening body is connected through a screw thread Be mounted in the chamber, and the top of the fastening body be provided with can be connected with screwing tool screw portion.

8. the solution pump according to claim 2 with safety valve, which is characterized in that the fixed valve base includes upper valve base And lower valve base, mounting groove setting is on the lower valve base top, the chamber upper valve base up and down, the upper valve base Lower part be provided with lower valve base mounting hole, the lower valve base outer wall interference is mounted in the lower valve base mounting hole.

9. the solution pump according to claim 2 with safety valve, which is characterized in that the movable valve base further includes float The lower part of the float seat is arranged in seat, the float chamber, and the float seat threaded connection is installed on the guide seat.

10. the solution pump according to claim 9 with safety valve, which is characterized in that install on the top of the float seat There is the valve pocket made of corrosion-resistant elastic material, the head piece that unloads being connected with the chamber, the valve are provided on the valve pocket The outer wall interference fit of set is inserted into the inner hole of the spring.