CN213627968U

CN213627968U - Exhaust and pressure relief device of hydraulic diaphragm type metering pump

Info

Publication number: CN213627968U
Application number: CN202021723513.2U
Authority: CN
Inventors: 张兵兵; 贺雷; 彭兰
Original assignee: Qingdao Bonard Machinery Technology Co ltd
Current assignee: Qingdao Bonard Machinery Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-07-06
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a hydraulic pressure diaphragm type measuring pump pressure release device that exhausts, including the relief valve body, the right side of relief valve body is equipped with the measuring pump connecting pipe, the upside fixedly connected with of relief valve body adjusts a section of thick bamboo, the inside of adjusting a section of thick bamboo is equipped with the exhaust mechanism who is used for the pressure release that exhausts, be equipped with between relief valve body and the measuring pump connecting pipe and be used for connecting the coupling mechanism of the two. The utility model has the advantages of reasonable design, simple structure makes things convenient for the staff operation, has secondly replaced the fixed mode of flange, and the staff's of being convenient for installation and dismantlement can also increase the area of contact of first rubber circle and second rubber circle, and then increases the leakproofness of junction, prevents that the phenomenon of liquid leakage from appearing in the junction of relief valve body and measuring pump connecting pipe.

Description

Exhaust and pressure relief device of hydraulic diaphragm type metering pump

Technical Field

The utility model relates to an exhaust pressure relief device technical field especially relates to a hydraulic pressure diaphragm type measuring pump exhaust pressure relief device.

Background

The diaphragm type metering pump replaces a piston with a specially designed and processed flexible diaphragm, and reciprocating motion is realized under the action of a driving mechanism to finish the processes of suction and discharge. The electric diaphragm pump actually realizes the isolation between the metered fluid and the driving lubrication mechanism in structure due to the isolation effect of the diaphragm.

Hydraulic pressure diaphragm type measuring pump is in the course of the work, promote hydraulic oil by the reciprocating motion of plunger, the hydraulic pressure oil area drives the diaphragm again and is reciprocal flexural motion, and when the air is mixed in the hydraulic oil, the air can compress, thereby influence the effect of hydraulic oil to the diaphragm, so need the pressure relief device to discharge the air, and through flange joint between common pressure relief device and the metering pump pipeline, make the device comparatively loaded down with trivial details when installation or dismantlement, greatly reduced work efficiency, when extrusion hydraulic oil when plunger reciprocating motion, the pressure increase in the pipeline, make the condition that liquid leakage may take place in the junction of pressure relief device and measuring pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydraulic diaphragm type metering pump exhaust and pressure relief device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hydraulic pressure diaphragm type measuring pump pressure release device that exhausts, includes the relief valve body, the right side of relief valve body is equipped with the measuring pump connecting pipe, the upside fixedly connected with of relief valve body adjusts a section of thick bamboo, the inside of adjusting a section of thick bamboo is equipped with the exhaust mechanism who is used for the pressure release that exhausts, be equipped with between relief valve body and the measuring pump connecting pipe and be used for connecting the two coupling mechanism.

Preferably, the connecting mechanism comprises a first fixed block sleeved on the outer side of the pressure relief valve body, the side wall of the first fixed block is fixedly connected with two fixed rods, a second fixed block is sleeved outside the metering pump connecting pipe and is fixedly connected with the metering pump connecting pipe, the side wall of the second fixed block is provided with two placing holes, the two fixed rods are respectively positioned in the two placing holes, the side wall of the second fixed block is provided with a sliding chute, a sliding block is arranged inside the sliding chute, the upper side of the sliding block is elastically connected with the inner top of the sliding chute through a spring, a clamping block is fixedly connected to the side wall of the sliding block, a clamping groove is arranged on the upper side of the fixed rod, the clamping block is positioned in the clamping groove, the interior bottom fixedly connected with magnet of draw-in groove, be equipped with the sealing mechanism who is used for preventing liquid leakage between relief valve body and the measuring pump connecting pipe.

Preferably, sealing mechanism includes the first rubber circle of fixed connection on the relief valve body is inboard, the inner circle of first rubber circle is equipped with a plurality of recesses, the inboard fixedly connected with second rubber circle of measuring pump connecting pipe, a plurality of lugs of outer lane fixedly connected with of second rubber circle, it is a plurality of the lug is located the inside of a plurality of recesses respectively.

Preferably, exhaust mechanism includes fixed connection and adjusts the inboard sealing washer of a section of thick bamboo, the upside of adjusting a section of thick bamboo is equipped with a plurality of exhaust holes, the upside of adjusting a section of thick bamboo runs through and is equipped with the connecting rod, the connecting rod with adjust a section of thick bamboo threaded connection, the lower extreme fixedly connected with control ball of connecting rod, the upper end fixedly connected with carousel of connecting rod, the control ball is located the inside of sealing washer.

Preferably, the side wall of the fixture block is provided with an inclined plane, the inclined plane is inclined downwards from left to right, and the fixture block is made of iron.

Preferably, the longitudinal sections of the first fixing block and the second fixing block are both in a circular ring-shaped structure.

The utility model discloses in have following beneficial effect:

1. through the arrangement of the exhaust device, when the gas in the pressure relief valve body needs to be exhausted, the rotary table is rotated to enable the connecting rod to move upwards, so that the control ball moves upwards, the air in the pressure relief valve body flows out of the adjusting cylinder through the exhaust holes, the purposes of exhausting and relieving pressure are achieved, the structure is simple, and the operation of workers is facilitated;

2. by arranging the connecting mechanism, the fixed rod is inserted into the placing hole and can extrude the fixture block to move upwards, when the clamping groove moves to a position under the fixture block, the fixture block can move downwards under the compression action of the spring so as to move into the clamping groove, and the magnet in the clamping groove can contact with and adsorb the fixture block, so that the first fixed block is further fixed, a flange fixing mode is replaced, and the installation and the disassembly of workers are facilitated;

3. through setting up sealing mechanism, when connecting relief valve body and measuring pump connecting pipe, insert the relief valve body with the second rubber circle, a plurality of lugs of second rubber circle lateral wall are extruded and then take place deformation, and finally a plurality of lugs can be located a plurality of recesses respectively, can increase the area of contact of first rubber circle and second rubber circle, and then increase the leakproofness of junction, prevent that the phenomenon of liquid leakage from appearing in the junction of relief valve body and measuring pump connecting pipe.

Drawings

Fig. 1 is a schematic structural view of an exhaust pressure relief device of a hydraulic diaphragm type metering pump according to the present invention;

fig. 2 is a perspective view of the disassembled relief valve body and the disassembled metering pump connecting pipe in the hydraulic diaphragm type metering pump exhaust relief device provided by the present invention;

fig. 3 is an enlarged view of fig. 1 at a.

In the figure: the pressure relief valve comprises a pressure relief valve body 1, a metering pump connecting pipe 2, an adjusting cylinder 3, an exhaust hole 4, a rotary table 5, a control ball 6, a connecting rod 7, a sealing ring 8, a first fixing block 9, a second fixing block 10, a first rubber ring 11, a groove 12, a second rubber ring 13, a convex block 14, a fixing rod 15, a sliding groove 16, a spring 17, a sliding block 18, a clamping block 19, a clamping groove 20, a magnet 21 and a placing hole 22.

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.

Referring to fig. 1-3, a hydraulic diaphragm type metering pump exhaust pressure relief device comprises a pressure relief valve body 1, a metering pump connecting pipe 2 is arranged on the right side of the pressure relief valve body 1, an adjusting cylinder 3 is fixedly connected to the upper side of the pressure relief valve body 1, and the cross section of the adjusting cylinder 3 is of a circular ring-shaped structure.

The inside of adjusting a section of thick bamboo 3 is equipped with the exhaust mechanism who is used for the pressure release of exhausting, exhaust mechanism includes fixed connection at the inboard sealing washer 8 of adjusting a section of thick bamboo 3, the upside of adjusting a section of thick bamboo 3 is equipped with a plurality of exhaust holes 4, the upside of adjusting a section of thick bamboo 3 runs through and is equipped with connecting rod 7, the outside of connecting rod 7 is equipped with the screw thread, connecting rod 7 and the 3 threaded connection of adjusting a section of thick bamboo, the lower extreme fixedly connected with control ball 6 of connecting rod 7, control ball 6 offsets with the inboard of sealing washer 8, the upper end fixedly connected with carousel 5 of connecting rod 7.

A connecting mechanism for connecting the pressure relief valve body 1 and the metering pump connecting pipe 2 is arranged between the pressure relief valve body 1 and the metering pump connecting pipe 2, the connecting mechanism comprises a first fixed block 9 sleeved on the outer side of the pressure relief valve body 1, two fixed rods 15 are fixedly connected to the side wall of the first fixed block 9, a second fixed block 10 is sleeved on the outer side of the metering pump connecting pipe 2, the longitudinal sections of the first fixed block 9 and the second fixed block 10 are both in a circular ring structure, the second fixed block 10 is fixedly connected with the metering pump connecting pipe 2, two placing holes 22 are arranged on the side wall of the second fixed block 10, the placing holes 22 are matched with the fixed rods 15, the two fixed rods 15 are respectively positioned inside the two placing holes 22, a sliding groove 16 is arranged on the side wall of the second fixed block 10, a sliding block 18 is arranged inside the sliding groove 16, the cross sections of, spring 17 is compression spring, and 18's lateral wall fixedly connected with fixture block 19 of slider, and 19's lateral wall is equipped with the inclined plane, and the inclined plane is from left right downward sloping setting, and fixture block 19 is made by iron for fixture block 19 can attract mutually with magnet 21, and the upside of dead lever 15 is equipped with draw-in groove 20, and fixture block 19 is located the inside of draw-in groove 20, and the interior bottom fixedly connected with magnet 21 of draw-in groove 20.

Be equipped with the sealing mechanism who is used for preventing liquid leakage between relief valve body 1 and the measuring pump connecting pipe 2, sealing mechanism includes fixed connection at the 1 inboard first rubber circle 11 of relief valve body, the inner circle of first rubber circle 11 is equipped with a plurality of recesses 12, the inboard fixedly connected with second rubber circle 13 of measuring pump connecting pipe 2, a plurality of lugs 14 of outer lane fixedly connected with of second rubber circle 13, a plurality of lugs 14 are located the inside of a plurality of recesses 12 respectively, increase the area of contact of first rubber circle 11 and second rubber circle 13, thereby increase the leakproofness.

When the utility model is used, when the relief valve body 1 and the metering pump connecting pipe 2 are connected, the second rubber ring 13 is aligned to the relief valve body 1 and inserted, the plurality of lugs 14 on the side wall of the second rubber ring 13 are extruded and deformed, and finally the plurality of lugs 14 can be respectively positioned in the plurality of grooves 12, so that the contact area between the first rubber ring 11 and the second rubber ring 13 can be increased;

after connecting relief valve body 1 and measuring pump connecting pipe 2 together, dead lever 15 can insert and place in the hole 22, and dead lever 15 can extrude to have magnetic fixture block 19 and make its rebound, and when draw-in groove 20 removed under fixture block 19, fixture block 19 can be in spring 17's compression effect downstream to remove to in draw-in groove 20, magnet 21 in the draw-in groove 20 can contact and adsorb with fixture block 19, further fixes first fixed block 9.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic pressure diaphragm type measuring pump pressure relief device that exhausts, includes relief valve body (1), its characterized in that, the right side of relief valve body (1) is equipped with measuring pump connecting pipe (2), the upside fixedly connected with of relief valve body (1) adjusts a section of thick bamboo (3), the inside of adjusting a section of thick bamboo (3) is equipped with the exhaust mechanism who is used for the pressure relief of exhausting, be equipped with the coupling mechanism who is used for connecting the two between relief valve body (1) and measuring pump connecting pipe (2), coupling mechanism includes the first fixed block (9) of cover setting on the relief valve body (1) outside, the lateral wall fixedly connected with two dead levers (15) of first fixed block (9), the outside cover of measuring pump connecting pipe (2) is equipped with second fixed block (10), second fixed block (10) and measuring pump connecting pipe (2), the side wall of the second fixed block (10) is provided with two placing holes (22), the two fixing rods (15) are respectively positioned in the two placing holes (22), the side wall of the second fixed block (10) is provided with a sliding groove (16), a sliding block (18) is arranged in the sliding groove (16), the upper side of the sliding block (18) is elastically connected with the inner top of the sliding groove (16) through a spring (17), the side wall of the sliding block (18) is fixedly connected with a clamping block (19), the upper side of the fixing rod (15) is provided with a clamping groove (20), the clamping block (19) is positioned in the clamping groove (20), the inner bottom of the clamping groove (20) is fixedly connected with a magnet (21), a sealing mechanism for preventing liquid leakage is arranged between the pressure relief valve body (1) and the metering pump connecting pipe (2), and comprises a first rubber ring (11) fixedly connected to the inner side of the pressure relief valve body (1), the inner circle of first rubber circle (11) is equipped with a plurality of recesses (12), the inboard fixedly connected with second rubber circle (13) of measuring pump connecting pipe (2), a plurality of lugs (14) of outer lane fixedly connected with of second rubber circle (13), it is a plurality of lug (14) are located the inside of a plurality of recesses (12) respectively.

2. The venting and pressure-relieving device of a hydraulic diaphragm metering pump according to claim 1, wherein the venting mechanism comprises a sealing ring (8) fixedly connected to the inner side of the adjusting cylinder (3), the upper side of the adjusting cylinder (3) is provided with a plurality of venting holes (4), the upper side of the adjusting cylinder (3) is provided with a connecting rod (7) in a penetrating manner, the connecting rod (7) is in threaded connection with the adjusting cylinder (3), the lower end of the connecting rod (7) is fixedly connected with a control ball (6), the upper end of the connecting rod (7) is fixedly connected with a turntable (5), and the control ball (6) is located inside the sealing ring (8).

3. The venting and pressure-relieving device of a hydraulic diaphragm metering pump according to claim 1, wherein the side wall of the clamping block (19) is provided with an inclined surface, the inclined surface is arranged to be inclined downwards from left to right, and the clamping block (19) is made of iron.

4. The exhaust and pressure relief device of a hydraulic diaphragm metering pump according to claim 1, wherein the longitudinal sections of the first fixing block (9) and the second fixing block (10) are both in a circular ring-shaped structure.