CN211397840U

CN211397840U - Pneumatic diaphragm pump

Info

Publication number: CN211397840U
Application number: CN201922393164.6U
Authority: CN
Inventors: 叶成川; 叶茂钦
Original assignee: Shanghai Hao Yang Pump Manufacturing Co ltd
Current assignee: Shanghai Hao Yang Pump Manufacturing Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-01
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to an air operated diaphragm pump, including the pump body and air valve, one side rigid coupling that the air valve is close to the pump body has the valve bottom plate, the position that the pump body corresponds the valve bottom plate is seted up and is inserted the heavy groove of establishing the valve bottom plate, the equal vertical through-hole of having seted up of upper surface both sides position department of valve bottom plate, the position that the bottom surface of heavy groove corresponds the through-hole all sets up threaded hole, the position that the upside of valve bottom plate corresponds each through-hole all is provided with wears to establish through-hole and lower extreme threaded connection in the bolt of screw hole, the both sides that the pump body corresponds the valve bottom plate still equal level slide be connected with the downside can the butt in the slide of the two bolt upsides of valve bottom plate lateral part, the pump body corresponds the equal rigid coupling in. The utility model has the advantages of can reduce the relative not hard up probability of the pump body of air valve, guarantee the normal work of diaphragm pump.

Description

Pneumatic diaphragm pump

Technical Field

The utility model belongs to the technical field of the technique of diaphragm pump and specifically relates to relate to pneumatic diaphragm pump.

Background

Diaphragm pumps are a more particular form of positive displacement pump. It relies on the back and forth movement of a diaphragm to vary the volume of the working chamber to draw in and expel fluid. The pneumatic diaphragm pump mainly comprises a transmission part and a diaphragm cylinder head. The transmission part is a driving mechanism for driving the diaphragm to swing back and forth, and the transmission form of the driving mechanism comprises mechanical transmission, hydraulic transmission, pneumatic transmission and the like, wherein the hydraulic transmission is widely applied. The working part of the diaphragm pump mainly comprises a crank connecting rod mechanism, a plunger, a hydraulic cylinder, a diaphragm, a pump body, a suction valve, a discharge valve and the like, wherein a driving mechanism consisting of the crank connecting rod, the plunger and the hydraulic cylinder is very similar to a reciprocating plunger pump.

The prior Chinese utility model patent with reference to the grant publication No. CN205977629U discloses a pneumatic diaphragm pump, a base; the pump body is detachably arranged on the base; an exhaust port disposed on the pump body; a diaphragm assembly disposed within the pump body; the diaphragm assembly includes: a drive valve assembly disposed on the pump body; the annular gland groups are respectively arranged on two sides of the pump body; the diaphragms are respectively arranged between the two groups of annular gland groups; the connecting rod shaft is connected to the power output end of the driving valve assembly; and the pressing block groups are respectively arranged at two ends of the connecting rod shaft, and all the diaphragms are respectively arranged in the pressing block groups. The utility model provides a detachable base is arranged at the bottom of the pump body, so that the installation time is shortened, the pneumatic diaphragm pump is easy to rebuild and convenient to maintain; the check valve group is arranged in the valve body, the structure is compact, the occupied space of the device is small, and the use is more flexible.

The air valve of above-mentioned driven valve subassembly among the prior art is also the diaphragm pump, and this kind of air valve at present is direct bolted connection on the pump body of diaphragm pump, nevertheless because of pneumatic diaphragm pump is at work, impels rivers because of the diaphragm pump work, and the vortex that accompanies, cavitation erosion inevitably can produce the vibration, therefore the air valve of bolted connection who adopts is very easily produced not hard up under long-time continuous vibration to lead to revealing, the work of direct influence pump body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air-operated diaphragm pump has and can reduce the relative not hard up probability with the pump body of air valve, guarantees the advantage of the normal work of diaphragm pump.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an air operated diaphragm pump, includes the pump body and air valve, one side rigid coupling that the air valve is close to the pump body has a valve bottom plate, the position that the pump body corresponds the valve bottom plate is seted up and is inserted the heavy groove of establishing the valve bottom plate, the equal vertical through-hole of having seted up in upper surface both sides position department of valve bottom plate, the bottom surface that sinks the groove corresponds the position of through-hole and all sets up threaded hole, the upside of valve bottom plate corresponds the position of each through-hole and all is provided with the bolt of wearing to establish through-hole and lower extreme threaded connection in the screw hole, the pump body corresponds the both sides of valve bottom plate still equal horizontal slip and is connected with the slide that the downside can the butt in the two bolt upsides of valve bottom plate lateral part, and the one side that the pump body corresponds.

Through adopting above-mentioned technical scheme, when the installation air valve, at first the slide is stirred to the direction that two slides of tendency kept away from each other, insert the valve bottom plate of air valve and locate the heavy inslot of the pump body after, each through-hole and threaded connection of valve bottom plate are worn to establish directly with each bolt in the threaded hole of heavy groove, then, loosen the slide, the slide will be directly through pushing away the direction motion to the both ends bolt upside of valve bottom plate that the spring trend is close to each other, thereby at pump body during operation, the slide can butt in the upside of bolt all the time, thereby the bolt up-motion has been avoided, and then the bolt has also been avoided rotating for the screw hole, it is not hard up to have avoided the bolt, thereby guarantee the firm connection of air valve and the pump body.

The utility model discloses further set up to: the equal rigid coupling in both sides that the pump body corresponds the valve bottom plate has the fixed block, the slot has all been seted up to the one side that is close to each other of fixed block, two the slide slides respectively and connects in the slot, push away the spring rigid coupling respectively in the slot with two slide one side of keeping away from each other, and push away the length direction of spring the same with the direction of sliding of slide.

Through adopting above-mentioned technical scheme, under the normality, push away the spring and can directly promote the slide and tend the direction that is close to each other and slide to make the one end butt that the slide is close to each other in the air valve, and the downside butt through the slide in the bolt upside, prevent that the bolt is not hard up.

The utility model discloses further set up to: the both sides of fixed block have all seted up logical groove along the glide direction of slide, the equal rigid coupling in both sides of slide has the protrusion in the board of dialling in logical groove.

Through adopting above-mentioned technical scheme, when the slide dismantles or installs the air valve that slides as needs, can directly tend two slides and stir the group board in the direction of keeping away from each other to can stir slide to the spout in, and then dismantlement or installation air valve that can be convenient.

The utility model discloses further set up to: an elastic ring capable of protruding out of the inner circumferential surface of the sinking groove is further fixedly connected to the upper side of the inner circumferential surface of the sinking groove, and the upper side of the valve bottom plate can be abutted to the lower side of the elastic ring.

Through adopting above-mentioned technical scheme, when inserting the valve bottom plate and locating heavy inslot, press the valve bottom plate downwards, extrude the elastic ring, through the elastic deformation of elastic ring self, can make the valve bottom plate insert and locate heavy inslot, insert the valve bottom plate and locate heavy inslot back, the elastic ring is because self elastic recovery original state to can support through the downside of elastic ring and press the valve bottom plate, guarantee the valve bottom plate with the inseparable butt of heavy inslot bottom surface.

The utility model discloses further set up to: the bottom surface of the sinking groove is fixedly connected with a sealing gasket which can be abutted against the lower side of the valve bottom plate.

Through adopting above-mentioned technical scheme, inserting the valve bottom plate and locating the back in the heavy groove, can guarantee the leakproofness of valve bottom plate and sealed pad through sealed the pad, avoid revealing.

The utility model discloses further set up to: and the lower side of the sliding plate is fixedly connected with a wear-resistant layer.

Through adopting above-mentioned technical scheme, when the pump body normally worked, the slide can guarantee the life of slide through the wearing layer when leading to self at the reciprocal slight slip of bolt upside because of the vibration of the pump body is great.

The utility model discloses further set up: and a buffer strip is fixedly connected to one side of each sliding plate, which is close to each other.

Through adopting above-mentioned technical scheme, when the pump body normally worked, the slide can slow down the collision of slide and air valve through the buffering strip when leading to self reciprocal slight slip greatly because of the vibration of the pump body, avoids the air valve damage, guarantees the life of air valve.

The utility model discloses further set up to: the upper side circumference of the sinking groove is provided with a guide groove.

Through adopting above-mentioned technical scheme, the direction that can be convenient for the valve bottom plate through the guide way that adopts is inserted and is established, the installation of being convenient for.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the air valve is installed, firstly, the sliding plates are shifted in the direction in which the two sliding plates are away from each other, after the valve bottom plate of the air valve is inserted into the sinking groove of the pump body, bolts directly penetrate through the through holes of the valve bottom plate and are in threaded connection with the threaded holes of the sinking groove, then, the sliding plates are loosened, and the sliding plates directly move to the upper sides of the bolts at two ends of the valve bottom plate in the direction in which the sliding plates approach each other through the push springs, so that when the pump body works, the sliding plates can always abut against the upper sides of the bolts, the bolts are prevented from moving upwards, the bolts are prevented from rotating relative to threaded holes, and the bolts are prevented from loosening, so that the air valve is firmly connected with the;

2. under a normal state, the push spring can directly push the sliding plates to slide towards the direction of mutual approaching, so that the ends of the sliding plates, which are mutually close, abut against the air valve, and the bolts are prevented from loosening by abutting against the upper sides of the bolts through the lower sides of the sliding plates;

3. when inserting the valve bottom plate and locating heavy inslot, press the valve bottom plate downwards, extrude the elastic ring, through the elastic deformation of elastic ring self, can make the valve bottom plate insert and locate heavy inslot, insert the valve bottom plate and locate heavy inslot back, the elastic ring is because self elastic recovery original state to can support through the downside of elastic ring and press the valve bottom plate, guarantee the valve bottom plate with the inseparable butt that sinks the groove bottom surface.

Drawings

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

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a schematic view of the fixing block structure of the present invention.

Fig. 5 is a schematic view of the slide plate structure of the present invention.

In the figure, 1, a pump body; 11. sinking a groove; 111. a containing groove; 112. an elastic ring; 12. a threaded hole; 2. an air valve; 21. a valve bottom plate; 211. a through hole; 212. a bolt; 3. a fixed block; 31. a slot; 32. a slide plate; 321. a wear layer; 322. a buffer strip; 323. dialing a plate; 33. pushing a spring; 34. a through groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses an air-operated diaphragm pump, including the pump body 1 and air valve 2, one side rigid coupling that air valve 2 is close to the pump body 1 has a valve bottom plate 21, and heavy groove 11 has been seted up to the position that the valve bottom plate 21 is corresponded to the pump body 1, and the bottom surface rigid coupling of heavy groove 11 has sealed the pad, and the guide way has been seted up to the upside of heavy groove 11 global. The valve bottom plate 21 can be inserted into the sinking groove 11, an annular accommodating groove 111 is further formed in the upper side of the inner circumferential surface of the sinking groove 11, an elastic ring 112 is fixedly connected into the accommodating groove 111, one side of the elastic ring 112 can protrude out of the inner circumferential surface of the sinking groove 11, when the valve bottom plate 21 is inserted into the sinking groove 11, the valve bottom plate 21 is pressed downwards, the elastic ring 112 is extruded, through elastic deformation of the elastic ring 112, the valve bottom plate 21 can be inserted into the sinking groove 11, after the valve bottom plate 21 is inserted into the sinking groove 11, the elastic ring 112 is elastically restored to the original shape, the valve bottom plate 21 can be abutted through the lower side of the elastic ring 112, tight abutting of the valve bottom plate 21 with the bottom surface of the sinking groove 11 is guaranteed, after the valve bottom plate 21 is inserted into the sinking groove 11, sealing performance of the valve bottom plate 21 and a sealing gasket can be guaranteed.

The equal vertical through-hole 211 of having seted up in upper surface both sides position department of valve bottom plate 21, the bottom surface of heavy groove 11 corresponds the position of through-hole 211 and all seted up threaded hole 12, and the position that the upside of valve bottom plate 21 corresponds each through-hole 211 still all is provided with bolt 212, and through-hole 211 and threaded connection are all worn to establish by the lower extreme of bolt 212 in threaded hole 12 to realize that valve bottom plate 21 is sinking groove 11 internal fixation.

Referring to fig. 3 and 4, the two sides of the pump body 1 corresponding to the valve bottom plate 21 are fixedly connected with the fixing blocks 3, the sides of the fixing blocks 3 close to each other are respectively provided with an inserting slot 31, the two inserting slots 31 are connected with sliding plates 32 in a sliding manner, the lower sides of the sliding plates 32 are flush with the upper sides of the bolts 212, the sides of the two inserting slots 31 corresponding to the two sliding plates 32 far away from each other are also fixedly connected with a push spring 33, the length direction of the push spring 33 is the same as the sliding direction of the slide plate 32, and the push spring 33 can push the slide plate 32 to slide until the slide plate contacts the air valve 2 in a normal state, at this time, the lower side of the sliding plate 32 is abutted against the upper side of the bolt 212 screwed in the threaded hole 12, the lower side of the sliding plate 32 is further fixed with a wear-resistant layer 321 (refer to FIG. 5), and the equal rigid coupling in one side that two slides 32 are close to each other has buffering strip 322, and logical groove 34 has still all been seted up along the glide direction of slide 32 in the both sides of fixed block 3, and the equal rigid coupling in both sides of slide 32 has the protrusion in logical groove 34 dial board 323. When the air valve 2 is installed, firstly, the sliding plates 32 are shifted in a direction that the two sliding plates 32 are away from each other through the shifting plate 323, after the valve bottom plate 21 of the air valve 2 is inserted into the sinking groove 11 of the pump body 1, the bolts 212 are directly inserted into the through holes 211 of the valve bottom plate 21 and are in threaded connection with the threaded holes 12 of the sinking groove 11, then, the shifting plate 323 is loosened, the sliding plates 32 directly move to the upper sides of the bolts 212 at two ends of the valve bottom plate 21 in a direction that the pushing springs 33 tend to be close to each other, so that when the pump body 1 works, the sliding plates 32 can be always abutted to the upper sides of the bolts 212, upward movement of the bolts 212 is avoided, further, the bolts 212 are prevented from rotating relative to the threaded holes 12, loosening of the bolts 212 is avoided, firm connection between the air valve 2 and the pump. In addition, when the pump body 1 normally works, the slide 32 can guarantee the life of the slide 32 through the wearing layer 321 when leading to self reciprocating slight sliding on the upper side of the bolt 212 because of the vibration of the pump body 1 is large, and the collision between the slide 32 and the air valve 2 can be slowed down through the buffer strip 322, so that the damage to the air valve 2 is avoided, and the life of the air valve 2 is guaranteed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an air-operated diaphragm pump, includes the pump body (1) and air valve (2), one side rigid coupling that air valve (2) are close to the pump body (1) has valve bottom plate (21), its characterized in that: the utility model discloses a valve structure, including pump body (1), the position that corresponds valve bottom plate (21) is seted up and is inserted heavy groove (11) of establishing valve bottom plate (21), the equal vertical through-hole (211) of having seted up in upper surface both sides position department of valve bottom plate (21), the position that the bottom surface of heavy groove (11) corresponds through-hole (211) all sets up threaded hole (12), the position that the upside of valve bottom plate (21) corresponds each through-hole (211) all is provided with and wears to establish bolt (212) of through-hole (211) and lower extreme threaded connection in threaded hole (12), its characterized in that: the pump body (1) is connected with the sliding plate (32) with the lower side capable of being abutted to the upper sides of the two bolts (212) on the side part of the valve bottom plate (21) in a horizontal sliding mode corresponding to the two sides of the valve bottom plate (21), and the side, away from each other, of the pump body (1) corresponding to the sliding plate (32) is further fixedly connected with a push spring (33) capable of pushing the sliding plate (32) to slide to the abutting joint on the air valve (2) and located on the upper side of the bolt (212) in a normal.

2. An air operated diaphragm pump according to claim 1, wherein: the equal rigid coupling in both sides that the pump body (1) corresponds valve bottom plate (21) has fixed block (3), slot (31) have all been seted up, two to being close to one side each other of fixed block (3) slide (32) respectively and slide and connect in slot (31), push away spring (33) respectively rigid coupling in slot (31) and one side that two slide (32) kept away from each other, and the length direction who pushes away spring (33) is the same with the direction of sliding of slide (32).

3. An air operated diaphragm pump according to claim 2, wherein: through groove (34) have all been seted up along the glide direction of slide (32) in the both sides of fixed block (3), the both sides of slide (32) all the rigid coupling have protrusion in group board (323) of through groove (34).

4. An air operated diaphragm pump according to claim 1, wherein: an elastic ring (112) capable of protruding out of the inner circumferential surface of the sinking groove (11) is further fixedly connected to the upper side of the inner circumferential surface of the sinking groove (11), and the upper side of the valve bottom plate (21) can be in contact with the lower side of the elastic ring (112).

5. An air operated diaphragm pump according to claim 1, wherein: the bottom surface of the sinking groove (11) is fixedly connected with a sealing gasket which can be abutted against the lower side of the valve bottom plate (21).

6. An air operated diaphragm pump according to claim 1, wherein: and a wear-resistant layer (321) is fixedly connected to the lower side of the sliding plate (32).

7. An air operated diaphragm pump according to claim 1, wherein: and a buffer strip (322) is fixedly connected to one side of each sliding plate (32) close to each other.

8. An air operated diaphragm pump according to claim 1, wherein: the upper side peripheral surface of the sinking groove (11) is provided with a guide groove.