CN210422964U

CN210422964U - Lower sheath of micro diaphragm pump

Info

Publication number: CN210422964U
Application number: CN201921248158.5U
Authority: CN
Inventors: 罗华军; 罗永兵
Original assignee: Taizhou Ziqiang Pump Co Ltd
Current assignee: Taizhou Ziqiang Pump Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-28
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a sheath under miniature diaphragm pump belongs to miniature diaphragm pump technical field. It includes sheath main part, motor and the pump body that links to each other with sheath main part swing joint, the motor match with the sheath main part and fit, the sheath main part on be equipped with outside convex threading groove, the threading groove height the same and the motor bottom of height of motor be equipped with two terminals, be equipped with the fixture block that flushes with the threading groove on the inner wall of sheath main part. The clearance height between motor bottom and the sheath main part bottom is the same with the fixture block height, thereby sets up the vibrations that the clearance can prevent that motor during operation from producing bottom the terminal and the sheath main part and making and collide with and lead to sheath main part bottom fracture, thereby the threading groove can make things convenient for the wire to penetrate and link to each other with the terminal from sheath main part top, and the heat dissipation of motor can also be accelerated in the clearance, improves the radiating efficiency.

Description

Lower sheath of micro diaphragm pump

Technical Field

The utility model belongs to the technical field of miniature diaphragm pump, a miniature diaphragm pump sheath down is related to.

Background

The micro diaphragm pump is a micro vacuum pump and is provided with a suction nozzle and an exhaust nozzle which are arranged one by one, the diaphragm in the pump is made to do reciprocating motion through a mechanical device in the pump, vacuum or negative pressure can be continuously formed at an inlet, and micro positive pressure is formed at the exhaust nozzle; working medium mainly is gaseous, a small and exquisite instrument, and the motor of the miniature diaphragm pump among the conventional art exposes in external environment, causes the motor to damage easily, and its protective sheath structural design of the miniature diaphragm pump that has the motor protective sheath is unreasonable, can lead to the motor heat dissipation difficulty, and the wire installation difficulty of power is connected to the motor, very influences work efficiency.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a micro diaphragm pump [ application number: 201510944149.X ], which comprises a motor, a motor cavity, a motor end cover, an eccentric wheel, a connecting rod, a diaphragm, an intermediate plate, valve rubber, a connecting plate, a buffer cavity and a head plate, wherein an output shaft of the motor extends into one end of the motor cavity and is connected with the eccentric wheel, the diaphragm is positioned between the motor cavity and the intermediate plate, the middle part of the diaphragm is connected with the connecting rod in the motor cavity through a screw, the connecting rod is further connected with the eccentric wheel, and the other end of the motor cavity is connected with the motor end cover; the valve rubber clamp is arranged between the middle plate and the connecting plate, the buffer cavity is arranged at the joint of the connecting plate and the head plate, and the buffer cavity and the head plate are tightly attached and sealed. The scheme has the advantages of small volume, easy movement, no need of a foundation, small occupied area, simple and economical installation; in medicine and scientific research, when hazardous and corrosive materials are encountered, the micro diaphragm pump can completely isolate the materials from the outside, and simultaneously ensures that no impurities pollute the materials; the throttle valve is additionally arranged to realize the advantages of adjustable flow and the like, but the defect that the motor is easy to damage because the motor is exposed in the external environment also exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a sheath under miniature diaphragm pump.

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

the utility model provides a sheath under miniature diaphragm pump, includes the sheath main part, with sheath main part swing joint's motor and the pump body that links to each other with the motor, motor and sheath main part match and fit, the sheath main part on be equipped with outside convex threading groove, the threading groove height highly be the same with the height of motor and motor bottom be equipped with two terminals, be equipped with the fixture block that flushes with the threading groove on the inner wall of sheath main part, motor bottom and fixture block hug closely the cooperation and motor bottom and sheath main part bottom between have the clearance, the height in clearance is greater than the length of terminal.

In the lower sheath of the miniature diaphragm pump, the bottom of the sheath main body is also provided with a plurality of threading holes penetrating through the sheath main body, and the fixture block is internally provided with heat dissipation holes penetrating through the side wall of the sheath main body.

In the lower sheath of the miniature diaphragm pump, the bottom of the pump body is provided with an inward concave positioning groove, one end of the motor, which is far away from the binding post, is provided with a positioning block inserted into the positioning groove, and the top of the main body of the sheath is flush with the bottom of the positioning block.

In the lower sheath of the micro diaphragm pump, two ends of the positioning block penetrate out of the sheath main body in the horizontal direction, two ends of the positioning block are positioned outside the sheath main body and are respectively provided with a first bolt hole penetrating through the positioning block in the vertical direction, and the pump body and the sheath main body are respectively provided with a second bolt hole and a third bolt hole which are in one-to-one correspondence with the first bolt holes.

In the lower sheath of the micro diaphragm pump, the pump body and the sheath body are respectively provided with a first connecting seat and a second connecting seat which are in one-to-one correspondence with two ends of the positioning block, and the second bolt hole and the third bolt hole are respectively positioned on the first connecting seat and the second connecting seat.

In foretell miniature diaphragm pump sheath down, a connecting seat and No. two connecting seats along the central line symmetry setting of threading groove, the lateral wall of sheath main part on lie in threading groove both sides and respectively be equipped with a fixed subassembly, two fixed subassemblies set up along the central line symmetry of threading groove, and fixed subassembly is located between threading groove and No. two connecting seats, and the distance between fixed subassembly and the threading groove equals with the distance between fixed subassembly and No. two connecting seats.

In the lower sheath of the micro diaphragm pump, the fixing component comprises a connecting seat arranged on the outer side wall of the sheath main body, the top of the connecting seat is flush with the top of the sheath main body, and the connecting seat is connected with at least one fixing seat.

In foretell miniature diaphragm pump under sheath, the connecting seat both ends respectively be equipped with a spout, the connecting seat on be equipped with insert to the spout in and with spout swing joint's T type connect, the fixing base keep away from T type and connect one end and be equipped with the fixed head, be equipped with the fixed orifices on the fixed head, after the T type of a plurality of fixing base connects and inserts respectively to the connecting seat of difference, the bottom surface of the fixed head of a plurality of fixing base all is located same vertical plane.

In the lower sheath of the micro diaphragm pump, when the connecting seat is only connected with two fixing seats, the two fixing seats are respectively positioned on two different connecting seats and are not symmetrically arranged along the central line of the threading groove.

In the lower sheath of the micro diaphragm pump, a reinforcing rib plate is arranged at the joint of the fixed head and the T-shaped joint.

Compared with the prior art, the utility model has the advantages of: the clearance height between motor bottom and the sheath main part bottom is the same with the fixture block height, thereby sets up the vibrations that the clearance can prevent that motor during operation from producing bottom the terminal and the sheath main part and making and collide with and lead to sheath main part bottom fracture, thereby the threading groove can make things convenient for the wire to penetrate and link to each other with the terminal from sheath main part top, and the heat dissipation of motor can also be accelerated in the clearance, improves the radiating efficiency.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of the overall structure provided by the present invention;

FIG. 2 is a schematic view of the connection of the sheath body, the motor and the pump body;

FIG. 3 is a schematic view of the outer structure of the sheath body;

FIG. 4 is a schematic view of the structure of the bottom of the motor;

FIG. 5 is a schematic view of the positioning block;

FIG. 6 is a schematic view of a positioning groove;

fig. 7 is a schematic view of the internal structure of the sheath body.

In the figure, a sheath main body 1, a motor 2, a pump body 3, a threading groove 4, a wiring terminal 5, a fixture block 6, a gap 7, a threading hole 8, a heat dissipation hole 9, a positioning groove 10, a positioning block 11, a first bolt hole 12, a first connecting seat 13, a second connecting seat 14, a second bolt hole 15, a third bolt hole 16, a fixing component 17, a connecting seat 18, a fixing seat 19, a sliding groove 20, a T-shaped joint 21, a fixing head 22, a fixing hole 23 and a reinforcing rib plate 24.

Detailed Description

As shown in fig. 4 and 7, a miniature diaphragm pump lower sheath comprises a sheath main body 1, a motor 2 movably connected with the sheath main body 1 and a pump body 3 connected with the motor 2, wherein the motor 2 is matched with the sheath main body 1, the sheath main body 1 is provided with a threading groove 4 protruding outwards, the height of the threading groove 4 is the same as that of the motor 2, two binding posts 5 are arranged at the bottom of the motor 2, a fixture block 6 flushing with the threading groove 4 is arranged on the inner wall of the sheath main body 1, the bottom of the motor 2 is closely attached to the fixture block 6, a gap 7 is formed between the bottom of the motor 2 and the bottom of the sheath main body 1, and the height of the gap 7 is greater than the length of the binding posts 5.

In this embodiment, clearance 7 height between 2 bottoms of motor and 1 bottoms of sheath main part is the same with fixture block 6 height, thereby it leads to 1 bottom fracture of sheath main part to set up vibrations that clearance 7 can prevent that 2 during operations of motor from producing to make

terminal

5 and 1 bottoms of sheath main part produce and collide with, threading groove 4 can make things convenient for the wire to penetrate and link to each other with terminal 5 from 1 top of sheath main part, clearance 7 can also accelerate the heat dissipation of motor 2, improve the radiating efficiency.

The bottom of the sheath main body 1 is also provided with a plurality of threading holes 8 which run through the sheath main body 1, and the fixture block 6 is internally provided with heat dissipation holes 9 which run through the side wall of the sheath main body 1.

In this embodiment, combine fig. 7 to show, through wires hole 8 can make things convenient for the wire to penetrate and link to each other with terminal 5 from 1 bottom of sheath main part, and through wires hole 8 can prevent that many wires from intertwining from knoing, and louvre 9 can increase the circulation of the inside and outside air of sheath main part 1 for the heat dissipation of motor 2.

The bottom of the pump body 3 is provided with an inward concave positioning groove 10, one end of the motor 2, which is far away from the terminal 5, is provided with a positioning block 11 inserted into the positioning groove 10, and the top of the sheath main body 1 is flush with the bottom of the positioning block 11.

In this embodiment, as shown in fig. 5 and 6, the top of the sheath body 1 is flush with the bottom of the positioning block 11, and the positioning block 11 can be inserted into the positioning groove 10, so that the bottom of the pump body 3 can be tightly fitted with the top of the sheath body 1, thereby reducing the gap and increasing the connection stability, and further having a positioning function.

Two ends of the positioning block 11 penetrate out of the sheath main body 1 in the horizontal direction, a first bolt hole 12 penetrating through the positioning block 11 in the vertical direction is formed in the part, located outside the sheath main body 1, of the two ends of the positioning block 11, and a second bolt hole 15 and a third bolt hole 16 which correspond to the first bolt hole 12 in a one-to-one mode are formed in the pump body 3 and the sheath main body 1.

In this embodiment, as shown in fig. 2-3 and 5-6, the second bolt hole 15 may be externally connected with a bolt 40, and the bolt 40 sequentially passes through the second bolt hole 15, the first bolt hole 12, and the third bolt hole 16 and cooperates with a nut to fix the body 3, the motor 2, and the sheath body 1.

The pump body 3 and the sheath body 1 are respectively provided with a first connecting seat 13 and a second connecting seat 14 which are in one-to-one correspondence with two ends of the positioning block 11, and the second bolt hole 15 and the third bolt hole 16 are respectively positioned on the first connecting seat 13 and the second connecting seat 14.

In this embodiment, as shown in fig. 2, 3 and 6, the first connecting seat 13 and the second connecting seat 14 are respectively disposed on the outer sidewalls of the pump body 3 and the sheath body 1, so that holes drilled in the pump body 3 and the sheath body 1 can be reduced, and the overall pressure resistance of the pump body 3 and the sheath body 1 can be enhanced.

Connecting seat 13 and No. two connecting seats 14 set up along the central line symmetry of threading groove 4, the lateral wall of sheath main part 1 on lie in threading groove 4 both sides and respectively be equipped with a fixed subassembly 17, two fixed subassemblies 17 set up along the central line symmetry of threading groove 4, and fixed subassembly 17 lies in between threading groove 4 and No. two connecting seats 14, and the distance between fixed subassembly 17 and the threading groove 4 equals with the distance between fixed subassembly 17 and No. two connecting seats 14.

In this embodiment, as shown in fig. 1 and 3, the fixing component 17 disposed on the outer sidewall of the sheath body 1 can fix the device, and reduce the number of holes drilled in the sheath body 1, thereby improving the pressure resistance of the sheath body 1.

Fixed subassembly 17 is including setting up connecting seat 18 on 1 lateral wall of sheath main part, connecting seat 18 top flush with 1 top of sheath main part, connecting seat 18 on even have at least one fixing base 19, connecting seat 18 both ends respectively are equipped with a spout 20, connecting seat 18 on be equipped with insert to spout 20 in and with spout 20 swing joint's T type connect 21, fixing base 19 keep away from T type and connect 21 one end and be equipped with fixed head 22, be equipped with fixed orifices 23 on the fixed head 22, after T type that a plurality of fixing base 19 connects 21 inserts respectively to different connecting seats 18, the bottom surface of the fixed head 22 of a plurality of fixing base 19 all is located same vertical plane.

In this embodiment, as shown in fig. 3, the fixing seat 19 is movably connected to the connecting seat 18, and is convenient to detach, and after the T-shaped joints 21 of the fixing seats 19 are respectively inserted into the different connecting seats 18, the bottom surfaces of the fixing heads 22 of the fixing seats 19 are all located on the same vertical plane, so that the fixing seats 19 can be smoothly fixed on the plane, and the fixing holes 23 can fix the fixing seats 19 through external bolts and screws.

When the connecting seat 18 is connected with only two fixing seats 19, the two fixing seats 19 are respectively located on two different connecting seats 18 and are not symmetrically arranged along the central line of the threading groove 4.

In this embodiment, as shown in fig. 3, when fixing the sheath body 1, at least two fixing seats 19 are required, and the two fixing seats 19 need to be respectively installed on two different connecting seats 18 and are not symmetrically arranged along the central line of the threading slot 4.

As shown in fig. 3, a reinforcing rib plate 24 is provided at the connection between the fixing head 22 and the T-shaped joint 21. In this embodiment, the reinforcing rib plate 24 can enhance the connection strength at the connection position of the fixing head 22 and the T-shaped joint 21, and prevent the connection position of the fixing head 22 and the T-shaped joint 21 from being broken.

The working principle of the utility model is that at least two fixing seats 19 are inserted into the sliding groove 20 on the connecting seat 18 according to the method described in the above embodiment, the motor 2 is inserted into the sheath main body 1, the positioning block 11 is aligned with the second connecting seat 14, the wires connected on the binding post 5 are respectively penetrated out from the top and the bottom of the sheath main body 1 through the threading groove 4 and the threading hole 8 to prevent the wires from winding and knotting, the positioning groove 10 on the pump body 3 is aligned with the positioning block 11 and the positioning block 11 is inserted into the positioning groove 10, the bolt 40 is sequentially penetrated through the second bolt hole 15, the first bolt hole 12 and the third bolt hole 16 and matched nuts to fix the body 3, the motor 2 and the sheath main body 1, the fixing seats 19 are fixed through the external screw of the fixing hole 23 on the fixing seats 19, the gap 7 between the bottom of the motor 2 and the bottom of the sheath main body 1 is as high as the, set up clearance 7 in 1 bottoms of sheath main part and can prevent thereby the vibrations terminal 5 that motor 2 during operation produced from colliding with the production in 1 bottoms of sheath main part and lead to 1 bottom fracture of sheath main part, threading groove 4 can make things convenient for the wire to penetrate and link to each other with terminal 5 from 1 tops of sheath main part, and clearance 7 can also accelerate the heat dissipation of motor 2, improves the radiating efficiency.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the sheath main body 1, the motor 2, the pump body 3, the threading groove 4, the terminal 5, the fixture block 6, the gap 7, the threading hole 8, the heat dissipation hole 9, the positioning groove 10, the positioning block 11, the first bolt hole 12, the first connecting seat 13, the second connecting seat 14, the second bolt hole 15, the third bolt hole 16, the fixing component 17, the connecting seat 18, the fixing seat 19, the sliding groove 20, the T-shaped joint 21, the fixing head 22, the fixing hole 23, the reinforcing rib plate 24, the bolt 40, and the like are used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a sheath under miniature diaphragm pump, includes sheath main part (1), motor (2) and pump body (3) that link to each other with sheath main part (1) swing joint, its characterized in that, motor (2) match with sheath main part (1) and fit, sheath main part (1) on be equipped with outside convex threading groove (4), threading groove (4) highly the same and motor (2) bottom of height with motor (2) be equipped with two terminals (5), be equipped with on the inner wall of sheath main part (1) fixture block (6) that flushes with threading groove (4), motor (2) bottom and fixture block (6) hug closely the cooperation and motor (2) bottom and sheath main part (1) bottom between have clearance (7), the height of clearance (7) is greater than the length of terminal (5).

2. The lower sheath of the micro diaphragm pump as claimed in claim 1, wherein the bottom of the sheath body (1) is further provided with a plurality of threading holes (8) penetrating through the sheath body (1), and the fixture block (6) is internally provided with heat dissipation holes (9) penetrating through the side wall of the sheath body (1).

3. The lower sheath of the micro diaphragm pump according to claim 1, wherein the bottom of the pump body (3) is provided with an inward-recessed positioning groove (10), one end of the motor (2) away from the terminal (5) is provided with a positioning block (11) inserted into the positioning groove (10), and the top of the sheath body (1) is flush with the bottom of the positioning block (11).

4. The lower sheath of the micro diaphragm pump according to claim 3, wherein two ends of the positioning block (11) penetrate out of the sheath main body (1) in the horizontal direction, a first bolt hole (12) penetrating through the positioning block (11) in the vertical direction is respectively formed in the two ends of the positioning block (11) which are located outside the sheath main body (1), and a second bolt hole (15) and a third bolt hole (16) which are in one-to-one correspondence with the first bolt hole (12) are respectively formed in the pump body (3) and the sheath main body (1).

5. The lower sheath of the micro diaphragm pump according to claim 4, wherein a first connecting seat (13) and a second connecting seat (14) which correspond to two ends of the positioning block (11) in a one-to-one manner are respectively arranged on the pump body (3) and the sheath main body (1), and the second bolt hole (15) and the third bolt hole (16) are respectively positioned on the first connecting seat (13) and the second connecting seat (14).

6. The lower sheath of the micro diaphragm pump as claimed in claim 5, wherein the first connecting seat (13) and the second connecting seat (14) are symmetrically arranged along a center line of the threading groove (4), the two fixing assemblies (17) are respectively arranged on the outer side wall of the sheath body (1) and located on two sides of the threading groove (4), the two fixing assemblies (17) are symmetrically arranged along the center line of the threading groove (4), the fixing assemblies (17) are located between the threading groove (4) and the second connecting seat (14), and the distance between the fixing assemblies (17) and the threading groove (4) is equal to the distance between the fixing assemblies (17) and the second connecting seat (14).

7. The micro diaphragm pump lower sheath according to claim 6, characterized in that the fixing component (17) comprises a connecting seat (18) arranged on the outer side wall of the sheath body (1), the top of the connecting seat (18) is flush with the top of the sheath body (1), and at least one fixing seat (19) is connected to the connecting seat (18).

8. The lower sheath of the micro diaphragm pump according to claim 7, wherein two sliding grooves (20) are respectively formed at two ends of the connecting seat (18), a T-shaped joint (21) which is inserted into the sliding grooves (20) and movably connected with the sliding grooves (20) is arranged on the connecting seat (18), a fixing head (22) is arranged at one end, far away from the T-shaped joint (21), of the fixing seat (19), a fixing hole (23) is formed in the fixing head (22), and after the T-shaped joints (21) of the fixing seats (19) are respectively inserted into different connecting seats (18), bottom surfaces of the fixing heads (22) of the fixing seats (19) are located on the same vertical plane.

9. The lower sheath of a miniature diaphragm pump as claimed in claim 7, wherein when only two fixing seats (19) are connected to the connecting seat (18), the two fixing seats (19) are respectively located on two different connecting seats (18) and are not symmetrically arranged along the central line of the threading slot (4).

10. The lower sheath of the micro diaphragm pump according to claim 8, wherein a reinforcing rib plate (24) is arranged at the joint of the fixing head (22) and the T-shaped joint (21).