CN210665168U

CN210665168U - High-precision double-head injection pump for COD water quality analyzer

Info

Publication number: CN210665168U
Application number: CN201921390611.6U
Authority: CN
Inventors: 顾顶天; 郭光亮
Original assignee: Nanjing Huadu Environmental Protection Equipment Co Ltd
Current assignee: Nanjing Huadu Environmental Protection Equipment Co Ltd
Priority date: 2019-08-24
Filing date: 2019-08-24
Publication date: 2020-06-02
Anticipated expiration: 2029-08-24

Abstract

The utility model discloses a COD is high accuracy double-end syringe pump for water quality analyzer, the power distribution box comprises a box body, still include the mount pad that sets up on the box outer wall, the sampler barrel of setting on the mount pad roof, inlet tube and the outlet pipe that is linked together with the sampler barrel, set up the push disk in the sampler barrel and set up the piston rod at the push disk diapire, the one end that the sampler barrel was kept away from to inlet tube and outlet pipe all extends to in the box, the outer wall of push disk is equipped with the laminating of sealing member and sampler barrel's inner wall, be equipped with the cavity in the mount pad, the one end that the piston rod kept away from the push disk extends to in the cavity, the roof of mount pad is equipped with the through-hole that supplies the piston rod to pass, be equipped with the drive push disk along the adjusting; this syringe pump replaces the manpower to sample the sample, labour saving and time saving, and the sampling precision is high, has improved water quality analysis's efficiency.

Description

High-precision double-head injection pump for COD water quality analyzer

Technical Field

The utility model relates to a water quality analysis's technical field, in particular to COD water quality analysis is high accuracy double-end syringe pump for appearance.

Background

Along with the development and scientific progress of society and economy and the improvement of the living standard of people, the requirement of people on the water quality of drinking water is continuously improved, the water quality standard of the drinking water is correspondingly continuously developed and perfected, water is a source of life, the safety of the drinking water is concerned about the health and life safety of people, the water quality standard has physical indexes and chemical indexes, and also has biological indexes, and whether the product quality is influenced or containers and pipelines are easily damaged is considered for industrial water.

The existing water quality analysis method generally adopts a water quality analyzer, a water sample is manually brought back to a laboratory, a quantitative sample is extracted by using an injector and is put into a container for detection, the sampling precision is low due to the manual sampling method, and the manual sampling mode is time-consuming and labor-consuming, so that the detection efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a COD is high accuracy double-end syringe pump for water quality analyzer, its advantage: this syringe pump replaces the manpower to sample the sample, labour saving and time saving, and the sampling precision is high, has improved water quality analysis's efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a COD is high accuracy double-end syringe pump for water quality analyzer, includes the box, still including setting up mount pad on the box outer wall, setting up sampler barrel on the mount pad roof, inlet tube and the outlet pipe that is linked together with the sampler barrel, setting push away the dish and set up the piston rod at pushing away the dish diapire in the sampler barrel, the one end that the sampler barrel was kept away from to inlet tube and outlet pipe all extends to in the box, the outer wall of push away the dish is equipped with the inner wall laminating of sealing member and sampler barrel, be equipped with the cavity in the mount pad, the one end that the piston rod kept away from the push away dish extends to in the cavity, the roof of mount pad is equipped with the through-hole that supplies the piston rod to pass, be equipped with the drive in the cavity and push away the dish along the adjusting part of.

According to the technical scheme, firstly, the mounting seat is fixed on the outer wall of the box body by using the mounting assembly; secondly, the piston rod is driven to move up and down by the lifting assembly, so that water in the sampling cylinder can be pushed to a water outlet pipe, and sampling is finally realized; meanwhile, due to the arrangement of the sealing element, the attaching tightness between the push disc and the inner wall of the sampling cylinder is enhanced, water is prevented from permeating into the cavity, the stability of the sampling process is improved, and the stability of the sampling process is improved; the injection pump with the structure replaces manual sampling, is time-saving and labor-saving, has high sampling precision, and further improves the efficiency of water quality analysis.

The utility model discloses further set up to: the sealing member is the HNBR sealing ring of cladding on pushing away the dish circumference outer wall, enclose between the roof of pushing away the dish and the top inner wall of sampler barrel and close to be formed with the sample space.

Through above-mentioned technical scheme, HNBR has higher compression set resistance for hydrogenated nitrile rubber, has characteristics such as high strength, high tear resistance, oxytolerant, wear resistance are excellent simultaneously, long service life, and then has strengthened sealed effect, has improved the stability of sample process.

The utility model discloses further set up to: the mount pad is located the inner diapire of cavity and is equipped with the spout, adjusting part including rotate the lead screw that sets up in the spout, with the both ends screw-thread fit's of lead screw drive block, set up in the cavity and along the elevator that mount pad height direction slided, two crisscross branch that sets up in the cavity, respectively with two branch's top rotate the guide block of being connected and drive lead screw pivoted cloth into the motor, establish to reverse screw thread, two at the both ends of lead screw the bottom of branch rotates with the lateral wall of two drive blocks respectively and is connected, two the middle part of branch is rotated and is connected, the diapire of elevator is equipped with the guide way, two along its length direction the guide block relative sliding in the guide way, the roof of elevator and the diapire fixed connection of piston rod.

According to the technical scheme, the cloth feeding motor is started, the screw rod rotates, and the two ends of the screw rod are provided with reverse threads, and the sliding grooves limit the movement of the driving blocks, so that the two driving blocks slide relatively; in the sliding process of the driving block, the guide block is driven to slide in the guide groove, and the angle between the two support rods is changed; when the two driving blocks are close to each other, the angle between the two supporting rods is gradually reduced, so that the lifting block is driven to move upwards, the piston rod is driven to push the push disc to move upwards, water in the sampling cylinder can be conveyed into the water outlet pipe, and sampling is finally realized; on the contrary, when the two driving blocks are far away from each other, the lifting block moves downwards in the same way, and then water can be supplied into the sampling cylinder through the water inlet pipe; this drive mode utilizes the positive and negative rotation of the steerable lead screw of cloth into motor, and then the distance between two drive blocks of control, and then the distance that has steerable piston rod goes up and down, and sampling efficiency is high to the precision to water quality analysis has been improved.

The utility model discloses further set up to: the mounting assembly comprises a bearing block, connecting plates and butterfly bolts, the bearing block is arranged on the side wall of the box body and extends outwards, the connecting plates are arranged on the two side walls of the mounting seat, mounting holes for the butterfly bolts to penetrate through are formed in the two connecting plates, threaded holes corresponding to the mounting holes are formed in the top wall of the bearing block, and the butterfly bolts are inserted into the mounting holes and the threaded holes from outside to inside in sequence.

According to the technical scheme, during installation, the installation base is placed on the bearing block, the installation hole is aligned to the threaded hole, and then the butterfly bolt is inserted into the installation hole and the threaded hole from top to bottom in sequence, so that the installation base can be fixed on the bearing block; this mounting means, simple structure makes things convenient for the staff to install the sampler barrel fast, has improved detection efficiency.

The utility model discloses further set up to: the two end walls of the lifting block are provided with sliding blocks, and the inner wall of the mounting seat in the cavity is provided with a lifting groove for the sliding of the sliding blocks along the height direction of the inner wall.

Through the technical scheme, the cooperation of the sliding block and the lifting groove plays a role in guiding and positioning the movement of the lifting block, and the stability of the lifting block in the vertical lifting process is improved.

The utility model discloses further set up to: be equipped with the guide bar in the guide way, the cover is equipped with spacing spring on the guide bar, two the lateral wall of guide block all is equipped with the hole of sliding that supplies the guide bar to pass, spacing spring's both ends are fixed respectively on the relative lateral wall of two guide blocks.

Through above-mentioned technical scheme, when two guide blocks are close to each other or keep away from each other, spacing spring contracts or stretches, and then the guide block slides on the guide bar, has improved the stability of guide block process of sliding to the stability of elevator lift process has been improved.

The utility model discloses further set up to: and a rubber sealing ring is arranged in the through hole, and the inner ring of the rubber sealing ring is attached to the outer wall of the piston rod.

Through above-mentioned technical scheme, rubber seal ring has good sealed effect, and rubber seal ring has strengthened sealed effect with the outer wall laminating of piston rod, has improved the stability of piston rod lift process simultaneously.

The utility model discloses further set up to: the inner wall of sampling tube is equipped with quartz glass and the laminating of HNBR sealing ring, the outer wall of sampling tube is equipped with the observation window.

Through the technical scheme, the internal condition of the sampling tube can be seen through the observation window; quartz glass intensity is high, has good corrosion-resistant effect, simultaneously with the laminating of HNBR sealing ring, has strengthened sealed effect, and then has prolonged the life of a sampling tube.

To sum up, the utility model discloses following beneficial effect has:

1. firstly, fixing a mounting seat on the outer wall of a box body by using a mounting assembly; secondly, the piston rod is driven to move up and down by the lifting assembly, so that water in the sampling cylinder can be pushed to a water outlet pipe, and sampling is finally realized; meanwhile, due to the arrangement of the sealing element, the attaching tightness between the push disc and the inner wall of the sampling cylinder is enhanced, water is prevented from permeating into the cavity, the stability of the sampling process is improved, and the stability of the sampling process is improved; the injection pump formed by adopting the structure replaces manpower for sampling, is time-saving and labor-saving, has high sampling precision, and further improves the efficiency of water quality analysis;

2. the cloth feeding motor is started, the screw rod rotates, and the two ends of the screw rod are provided with reverse threads, and the sliding groove has a limiting effect on the movement of the driving blocks, so that the two driving blocks slide relatively; in the sliding process of the driving block, the guide block is driven to slide in the guide groove, and the angle between the two support rods is changed; when the two driving blocks are close to each other, the angle between the two supporting rods is gradually reduced, so that the lifting block is driven to move upwards, the piston rod is driven to push the push disc to move upwards, water in the sampling cylinder can be conveyed into the water outlet pipe, and sampling is finally realized; according to the driving mode, the forward and reverse rotation of the screw rod can be controlled by the cloth feeding motor, so that the distance between the two driving blocks is controlled, the lifting distance of the piston rod can be controlled, the sampling efficiency is high, and the precision of water quality analysis is improved;

3. quartz glass intensity is high, has good corrosion-resistant effect, simultaneously with the laminating of HNBR sealing ring, has strengthened sealed effect, and then has prolonged the life of a sampling tube.

Drawings

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

Fig. 2 is a schematic cross-sectional structural diagram for showing the positional relationship between the sampling cylinder and the mounting base in the present embodiment.

Fig. 3 is a schematic diagram of a partially enlarged structure for embodying a in fig. 2.

Fig. 4 is a schematic sectional structure diagram for embodying the mounting assembly in the present embodiment.

Reference numerals: 1. a box body; 2. a mounting seat; 3. a sampling tube; 4. a water inlet pipe; 5. a water outlet pipe; 6. pushing the disc; 7. a piston rod; 8. a seal member; 81. an HNBR seal ring; 9. a cavity; 10. a through hole; 11. an adjustment assembly; 111. a screw rod; 112. a drive block; 113. a lifting block; 114. a strut; 115. a guide block; 116. a cloth feeding motor; 12. mounting the component; 121. a bearing block; 122. a connecting plate; 123. a butterfly bolt; 13. sampling space; 14. a chute; 15. a guide groove; 16. mounting holes; 17. a threaded hole; 18. a slider; 19. a lifting groove; 20. a guide bar; 21. a limiting spring; 22. a sliding hole; 23. a rubber seal ring; 24. quartz glass; 25. an observation window; 26. a rotating shaft; 27. a multi-way valve; 28. and (7) detecting the instrument.

Detailed Description

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

Example (b):

a high accuracy double-end syringe pump for COD water quality analyzer, refers to figure 1, includes box 1, installs multi-ported valve 27 and detector 28 on the lateral wall of box 1.

Referring to fig. 1 and 2, a mounting seat 2 is arranged on one side of a multi-way valve 27 on the outer wall of a box body 1, a sampling cylinder 3 is arranged on the top wall of the mounting seat 2, a water inlet pipe 4 and a water outlet pipe 5 communicated with the interior of the sampling cylinder 3 are oppositely arranged on the top wall of the sampling cylinder 3, a push disc 6 is arranged in the sampling cylinder 3, a sampling space 13 is formed between the top wall of the push disc 6 and the inner wall of the top of the sampling cylinder 3 in a surrounding manner, and a piston rod 7 is arranged on the bottom wall of; utilize multi-ported valve 27 to supply water to inlet tube 4, and then supply water in to sampling space 13, then promote piston rod 7, drive push away set 6 and move up, and then can push the water of sampling space 13 to outlet pipe 5, to detector 28 side by side, carry out water quality testing, finally realized sampling test.

Referring to fig. 2, a sealing element 8 is arranged on the outer wall of the push disc 6 and is attached to the inner wall of the sampling cylinder 3, a cavity 9 is arranged in the mounting seat 2, the cavity 9 is communicated with the inside of the sampling cylinder 3, the bottom end of the piston rod 7 extends into the cavity 9, a through hole 10 for the piston rod 7 to pass through is arranged on the top wall of the mounting seat 2, an adjusting assembly 11 for driving the piston rod 7 to ascend and descend along the height direction of the sampling cylinder 3 is arranged in the cavity 9, and a mounting assembly 12 for fixing the mounting seat 2 is arranged on the outer wall; firstly, fixing a mounting seat 2 on the outer wall of a box body 1 by using a mounting component 12; secondly utilize lifting unit drive push away dish 6 to reciprocate, the setting of sealing member 8 has strengthened the compactness of laminating between push away dish 6 and the 3 inner walls of sampler barrel simultaneously, and then has improved the stability of sampling process, avoids the rivers in the sample space 13 to go into in the cavity 9, and then has improved the stability of sampling process.

Referring to fig. 2, the sealing element 8 is an HNBR sealing ring 81 coated on the outer wall of the circumference of the push disk 6; HNBR is hydrogenated nitrile rubber, has higher compression set resistance, has the characteristics of high strength, high tear resistance, excellent oxygen resistance, excellent wear resistance and the like, has long service life, and further enhances the sealing effect.

Referring to fig. 1 and 2, the inner wall of the sampling tube 3 is provided with quartz glass 24 which is attached to an HNBR sealing ring 81, and the outer wall of the sampling tube 3 is provided with an observation window 25; the inside of the sampling tube 3 can be seen through the observation window 25; the quartz glass 24 is high in strength and good in corrosion resistance, and is attached to the HNBR sealing ring 81, so that the sealing effect is enhanced, and the service life of the sampling cylinder 3 is prolonged.

Referring to fig. 2, the inner bottom wall of the cavity 9 of the mounting base 2 is provided with a sliding slot 14 along the length direction thereof, the adjusting assembly 11 includes a screw 111 rotatably disposed in the sliding slot 14, a driving block 112 in threaded fit with both ends of the screw 111, a lifting block 113 disposed in the cavity 9 and sliding along the height direction of the mounting base 2, two support rods 114 alternately disposed in the cavity 9, a guide block 115 rotatably connected with the top ends of the two support rods 114, and a cloth-in motor 116 mounted on the outer wall of the mounting base 2, a motor shaft of the cloth-in motor 116 extends into the sliding slot 14 and is fixedly connected with one end of the screw 111, the other end of the screw 111 is rotatably connected with the slot wall of the sliding slot 14, both ends of the screw 111 are provided with reverse threads, the bottom ends of the two support rods 114 are rotatably connected with the side walls of the two driving blocks 112, the middle side walls of the two support rods 114 are rotatably connected with each other by a rotating shaft 26, the bottom end of the lifting, the bottom end of the piston rod 7 far away from the push disc 6 is fixed on the top wall of the lifting block 113; during sampling, the cloth feeding motor 116 is started firstly, the screw rod 111 rotates, the sliding chute 14 has a limiting effect on the movement of the driving blocks 112, and two ends of the screw rod 111 are provided with reverse threads, so that the two driving blocks 112 relatively slide along the length direction of the screw rod 111; in the sliding process of the two driving blocks 112, the top ends of the two supporting rods 114 are respectively rotatably connected with the side walls of the guide blocks 115 of the driving blocks 112, so that the two guide blocks 115 are driven to slide relatively, and the angle between the two supporting rods 114 is gradually increased or decreased; when the two driving blocks 112 and the two guide blocks 115 approach each other, the angle between the two support rods 114 is gradually reduced, so as to drive the lifting block 113 to move upwards, so that the piston rod 7 pushes the push disc 6 to move upwards, water in the sampling space 13 can be conveyed to the water outlet pipe 5, and finally sampling is realized; this drive mode replaces the manpower sample, and labour saving and time saving through the positive and negative rotation of cloth into motor 116 control lead screw 111, adjusts the distance between two drive blocks 112, and then the angle between two branches 114 changes along with the slip of two drive blocks 112, and then the distance that control elevator 113 goes up and down to realized the accurate distance of piston rod 7 lift, the sampling precision is high, has improved the efficiency to water quality analysis.

Referring to fig. 2, two ends of the lifting block 113 are provided with sliding blocks 18, the inner wall of the mounting base 2 located in the cavity 9 is provided with a lifting groove 19 along the height direction, and when the lifting block 113 moves up and down, the sliding blocks 18 slide in the lifting groove 19; the cooperation of slider 18 and lift groove 19 plays spacing and guide's effect to the removal of lifter 113, and then has improved the stability of lifter 113 process of sliding.

Referring to fig. 2 and 3, a guide rod 20 is fixed in the guide groove 15 and has the same direction as the length direction of the guide rod, sliding holes 22 are formed in the side walls of the two guide blocks 115 for the guide rod 20 to pass through, a limiting spring 21 is arranged between the two guide blocks 115 through the guide rod 20, two ends of the limiting spring 21 are fixedly connected with the opposite side walls of the two guide blocks 115, and the stretching direction of the limiting spring 21 is the same direction as the length direction of the guide rod 20; when the two guide blocks 115 approach or move away from each other in the guide groove 15, the limiting spring 21 retracts or stretches, and the stability of the sliding of the guide blocks 115 on the guide rod 20 is improved.

Referring to fig. 3, a rubber sealing ring 23 is arranged in the through hole 10, and the inner ring of the rubber sealing ring 23 is attached to the outer wall of the piston rod 7; rubber seal ring 23 has good sealing effect, and rubber seal ring 23 has strengthened sealed effect with the outer wall laminating of piston rod 7, has improved the stability of piston rod 7 lift process simultaneously.

Referring to fig. 4, the mounting assembly 12 includes a supporting block 121 disposed on a side wall of the box 1 and extending outward, connecting plates 122 disposed on two sides of the mounting base 2 and extending outward from a bottom side wall, and butterfly bolts 123, where the side walls of the two connecting plates 122 are respectively provided with two opposite mounting holes 16 for the butterfly bolts 123 to pass through, the top wall of the supporting block 121 is provided with threaded holes 17 corresponding to the mounting holes 16, and the butterfly bolts 123 are sequentially inserted into the mounting holes 16 and the threaded holes 17 from outside to inside; during installation, the installation base 2 is placed on the bearing block 121, and then the butterfly bolt 123 is sequentially inserted into the installation hole 16 and the threaded hole 17 from outside to inside, so that the installation block can be fixed on the outer wall of the box body 1, the butterfly bolt 123 facilitates the rotation of hands, and the installation efficiency is improved; this mounting means, simple structure makes things convenient for the dismouting, makes things convenient for the staff to more take out cartridge 3, has improved detection efficiency.

The working process is as follows: firstly, placing the mounting seat 2 on a bearing seat, firstly, inserting the butterfly bolt 123 into the mounting hole 16 and the threaded hole 17 in sequence from outside to inside, and further fixing the mounting seat 2 on the bearing block 121; then the cloth feeding motor 116 is started, the screw rod 111 rotates, the two driving blocks 112 and the guide block 115 are close to each other, the angle between the two support rods 114 is gradually reduced, the lifting block 113 moves upwards at the moment, the piston rod 7 is driven to move upwards, water in the sampling space 13 can be pushed into the water outlet pipe 5, and sampling is finally completed.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a COD is high accuracy double-end syringe pump for water quality analyzer, includes box (1), its characterized in that: the sampling device is characterized by further comprising a mounting seat (2) arranged on the outer wall of the box body (1), a sampling cylinder (3) arranged on the top wall of the mounting seat (2), a water inlet pipe (4) and a water outlet pipe (5) communicated with the sampling cylinder (3), a push disc (6) arranged in the sampling cylinder (3) and a piston rod (7) arranged on the bottom wall of the push disc (6), wherein one end, far away from the sampling cylinder (3), of the water inlet pipe (4) and the water outlet pipe (5) extends into the box body (1), the outer wall of the push disc (6) is provided with a sealing piece (8) which is attached to the inner wall of the sampling cylinder (3), a cavity (9) is arranged in the mounting seat (2), one end, far away from the push disc (6), of the piston rod (7) extends into the cavity (9), the top wall of the mounting seat (2) is provided with a through hole (10) through which the piston rod (7) penetrates, and a regulating assembly (11) for driving the push disc (6, the outer wall of the box body (1) is provided with a mounting component (12) which is connected with the mounting seat (2).

2. The high-precision double-head injection pump for the COD water quality analyzer in accordance with claim 1 is characterized in that: sealing member (8) are HNBR sealing ring (81) of cladding on pushing away set (6) circumference outer wall, enclose between the roof of pushing away set (6) and the top inner wall of sampler barrel (3) and close and be formed with sample space (13).

3. The high-precision double-head injection pump for the COD water quality analyzer in accordance with claim 1 is characterized in that: the mounting seat (2) is provided with a sliding groove (14) on the inner bottom wall of the cavity (9), the adjusting component (11) comprises a screw rod (111) rotatably arranged in the sliding groove (14), a driving block (112) in threaded fit with the two ends of the screw rod (111), a lifting block (113) arranged in the cavity (9) and sliding along the height direction of the mounting seat (2), two support rods (114) arranged in the cavity (9) in a staggered manner, a guide block (115) respectively connected with the top ends of the two support rods (114) in a rotating manner and a cloth-in motor (116) driving the screw rod (111) to rotate, the two ends of the screw rod (111) are provided with reverse threads, the bottom ends of the two support rods (114) are respectively connected with the side walls of the two driving blocks (112) in a rotating manner, the middle parts of the two support rods (114) are connected in a rotating manner, the bottom wall of the lifting block (113) is provided with a, the two guide blocks (115) slide in the guide grooves (15) relatively, and the top wall of the lifting block (113) is fixedly connected with the bottom wall of the piston rod (7).

4. The high-precision double-head injection pump for the COD water quality analyzer in accordance with claim 1 is characterized in that: the mounting assembly (12) comprises a bearing block (121) arranged on the side wall of the box body (1) and extending outwards, connecting plates (122) arranged on the two side walls of the mounting seat (2) and butterfly bolts (123), mounting holes (16) for the butterfly bolts (123) to pass through are formed in the connecting plates (122), threaded holes (17) corresponding to the mounting holes (16) are formed in the top wall of the bearing block (121), and the butterfly bolts (123) are inserted into the mounting holes (16) and the threaded holes (17) from outside to inside in sequence.

5. The COD water quality analyzer of claim 3 uses high accuracy double-end syringe pump characterized in that: the two end walls of the lifting block (113) are respectively provided with a sliding block (18), and the inner wall of the mounting seat (2) positioned in the cavity (9) is provided with a lifting groove (19) for the sliding block (18) to slide along the height direction.

6. The COD water quality analyzer of claim 3 uses high accuracy double-end syringe pump characterized in that: be equipped with guide bar (20) in guide way (15), the cover is equipped with spacing spring (21) on guide bar (20), two the lateral wall of guide block (115) all is equipped with the hole of sliding (22) that supplies guide bar (20) to pass, the both ends of spacing spring (21) are fixed respectively on the relative lateral wall of two guide blocks (115).

7. The high-precision double-head injection pump for the COD water quality analyzer in accordance with claim 1 is characterized in that: and the side wall of the through hole (10) is provided with a rubber sealing ring (23), and the inner ring of the rubber sealing ring (23) is attached to the outer wall of the piston rod (7).

8. The high-precision double-head injection pump for the COD water quality analyzer in accordance with claim 2 is characterized in that: the inner wall of sampling tube (3) is equipped with quartz glass (24) and laminates with HNBR sealing ring (81), the outer wall of sampling tube (3) is equipped with observation window (25).