CN215575063U - Telescopic device for portable dissolved oxygen tester - Google Patents

Abstract

The utility model relates to a telescoping device for portable dissolved oxygen apparatus, portable dissolved oxygen apparatus include the apparatus body, the one end fixedly connected with connecting wire of apparatus body, the one end fixedly connected with that the apparatus body was kept away from to the connecting wire detects the head, and the telescoping device includes the head rod, the one end of head rod is equipped with inside sliding tray, it has the second connecting rod to slide to peg graft in the sliding tray, be equipped with the fixed subassembly fixed with the second connecting rod between head rod and the second connecting rod, one side fixedly connected with second connecting block that the head rod was kept away from to the second connecting rod, second connecting block fixedly connected with supplies the solid fixed cylinder that detects head slip grafting, gu be equipped with the locking Assembly who will detect head locking between solid fixed cylinder and the detection head. This application has when the measurement personnel has certain distance from the surface of water, and the measurement personnel of being convenient for will detect the head and stretch into the surface of water to detect the effect of water dissolved oxygen concentration.

Description

Telescopic device for portable dissolved oxygen tester

Technical Field

The application relates to the field of portable dissolved oxygen measuring instruments, in particular to a telescopic device for a portable dissolved oxygen measuring instrument.

Background

A portable dissolved oxygen measuring instrument is an instrument for measuring dissolved oxygen in water, and is widely used in fields related to water quality analysis. The portable dissolved oxygen tester has small volume and easy carrying, and is suitable for field operation.

The utility model discloses a portable dissolved oxygen appearance of china that has bulletin number CN207067112U, including display screen and fuselage openly, the fuselage openly below is equipped with the connector, and the connector below is equipped with the extension pipe, and the one end that the connector was kept away from to the extension pipe is equipped with detects the head. When detecting the dissolved oxygen in the aquatic, detect the head and stretch into the aquatic, the display screen can show the dissolved oxygen concentration.

In view of the above-mentioned related art, the inventor believes that there is a defect that it is difficult for an inspector to hold a probe so that the probe extends into a water surface when the inspector is relatively far from the water surface, and thus to detect the concentration of dissolved oxygen in water.

SUMMERY OF THE UTILITY MODEL

In order to improve when the measurement personnel is far away from the surface of water, the measurement personnel is difficult to hand the head that detects and makes and detect the head and stretch into the surface of water to be difficult to detect the dissolved oxygen concentration's of aquatic problem, this application provides a telescoping device for portable dissolved oxygen apparatus.

The application provides a telescoping device for portable dissolved oxygen apparatus adopts following technical scheme:

a telescopic device for a portable dissolved oxygen tester comprises a tester body, wherein one end of the tester body is fixedly connected with a connecting wire, one end of the connecting wire, which is far away from the tester body, is fixedly connected with a detection head;

one side fixedly connected with second connecting block that the first connecting rod was kept away from to the second connecting rod, second connecting block fixedly connected with supplies to detect the solid fixed cylinder of head slip grafting, gu be equipped with the locking Assembly who will detect the head locking between solid fixed cylinder and the detection head.

Through adopting above-mentioned technical scheme, the measurement personnel have certain distance from the surface of water, when needing to stretch into the surface of water with measuring the head, measurement personnel will measure the head and keep away from the one end of connecting wire and insert from the solid fixed cylinder to the one end that is close to the head, will measure the head and promote to the direction of keeping away from the head and shift out until measuring the head and keep away from the one end of connecting wire from the solid fixed cylinder, locking Assembly will measure the head and lock the back with the solid fixed cylinder, measurement personnel will take out from the sliding tray with second connecting block fixed connection's second connecting rod, take out after suitable length, it is fixed with head and second connecting rod with fixed subassembly.

The detector utilizes the telescopic second connecting rod to stretch into below the surface of water the detection head, and the detection head passes through connecting wire and this body coupling of apparatus, and the handheld apparatus body of detector, apparatus body show water dissolved oxygen concentration, have when detector has certain distance from the surface of water, and the detector of being convenient for will detect the head and stretch into the surface of water to detect the effect of water dissolved oxygen concentration.

Optionally, the fixing assembly comprises a first fixing rod with one end provided with threads, a threaded hole communicated with the sliding groove is formed in the outer surface of the first connecting rod, the first fixing rod is in threaded connection with the threaded hole, the surfaces of the first fixing rod and the second connecting rod, which are close to each other, are abutted closely, and the first fixing rod is far away from the second fixing rod.

Through adopting above-mentioned technical scheme, when inspection personnel need fixed head rod and second connecting rod, inspection personnel insert the screw hole with screwed one end of first dead lever in, twist and move the second dead lever for the inseparable butt of first dead lever and second connecting rod, head rod and second connecting rod are fixed, and fixed process is convenient.

The second fixing rod is screwed, so that the first fixing rod is not abutted to the second connecting rod any more, and the second connecting rod can stretch and contract in the sliding groove.

Optionally, the locking Assembly includes the third dead lever, it is equipped with the second recess to detect overhead, the inner wall of a fixed section of thick bamboo is equipped with the third recess that sets up with second recess intercommunication, the surface of a fixed section of thick bamboo is equipped with the intercommunicating pore with third recess intercommunication, the third dead lever is pegged graft with the intercommunicating pore, the second fixed block that third dead lever fixedly connected with and second recess are pegged graft, one side fixedly connected with spring that the second fixed block is close to the third dead lever, the one end that the second fixed block was kept away from to the spring and the tank bottom butt of third recess, the spring is in compression state.

Through adopting above-mentioned technical scheme, before detecting the head and inserting fixed cylinder, the spring is in natural state, and the one end that the second fixed block was kept away from to the spring does not butt with the tank bottom of third recess.

When the detection head and the fixed cylinder are required to be locked, a detector pulls the third fixed rod, so that the second fixed block is located in the third groove, the spring is compressed, and one end of the spring, far away from the second fixed block, is abutted against the groove bottom of the third groove. Detect the head and insert a solid fixed cylinder, will detect the head and remove to the one end of keeping away from the apparatus body for second recess and third recess intercommunication, during the second fixed block inserted the second recess, the spring was kept away from the one end of second fixed block and the tank bottom butt of third recess, and the spring is in by compression state, detects the head and is locked with a solid fixed cylinder, and locking process is simple.

When the detection head needs to be taken down from the fixed cylinder, a detection person pulls the third fixing rod in the direction far away from the fixed cylinder with force, the third fixing rod pulls the second fixing block, the spring is further compressed, the second fixing block is located in the third groove, and then the detection head is taken out in the direction close to the determinator body.

Optionally, one end of the third fixing rod, which is far away from the fixing barrel, is fixedly connected with a fourth fixing rod.

Through adopting above-mentioned technical scheme, the fourth dead lever is convenient for the testing personnel to stimulate the third dead lever, can also reduce the possibility that third dead lever and second fixed block fall into in the fixed cylinder.

Optionally, one side of the first connecting rod, which is far away from the second connecting rod, is fixedly connected with a first connecting block, the first connecting block is fixedly connected with a first fixing block, and a first groove which is tightly inserted into the measuring instrument body is inwards arranged on the surface, which is far away from the first connecting rod, of the first fixing block.

Through adopting above-mentioned technique, when testing personnel detected the water sample in the field, testing personnel can closely peg graft with apparatus body and first recess, and testing personnel needn't hold the detector body always, makes things convenient for the testing personnel to detect the dissolved oxygen concentration in the water.

Optionally, one end of the first fixing block, which is close to the connecting wire, is provided with a third fixing block, a fourth groove is arranged in the third fixing block, the first fixing block is closely inserted into the fourth groove, a preformed hole for the connecting wire to pass through is formed in the third fixing block, one end of the first fixing block, which is far away from the connecting wire, is provided with the fourth fixing block, a fifth groove is formed in the fourth fixing block, and the first fixing block is closely inserted into the fifth groove.

Through adopting above-mentioned technical scheme, when the measurement personnel detected the water sample, measurement personnel perhaps fall out from first recess with head rod inclination, the apparatus body in the first fixed block, and third fixed block and fourth fixed block the apparatus body, and third fixed block and fourth fixed block have reduced the possibility that the apparatus body falls out from first recess.

When the detector body needs to be stored by detection personnel, the third fixing block and the fourth fixing block are respectively separated from the first fixing block, the detector body is taken out of the first groove, and the first fixing block, the connecting line and the detector body are stored together.

Optionally, a pair of inner wall homogeneous body shaping of third fixed block has a pair of first arch that is located the fourth recess, a pair of outer wall of first fixed block all is equipped with a pair of first joint groove with first protruding one-to-one, first arch is pegged graft with first joint groove, a pair of outer wall homogeneous body shaping of fourth fixed block has a pair of second arch that is located the fifth recess, a pair of inner wall of first fixed block all is equipped with a pair of second joint groove with the protruding one-to-one of second, and the second is protruding to be pegged graft with second joint groove.

Through adopting above-mentioned technical scheme, the third fixed block receives external force to take place elastic deformation, and when the third fixed block needs to be fixed with first fixed block, a pair of inner wall of third fixed block and the outer wall butt of first fixed block move the third fixed block to the direction that is close to first fixed block, the outer wall butt of first arch and first fixed block, elastic deformation takes place for the third fixed block, when first arch is pegged graft with first joint groove, third fixed block reconversion.

The fourth fixed block receives external force to take place elastic deformation, and when the fourth fixed block needs to be fixed with first fixed block, the outer wall butt of a pair of inner wall and the first fixed block of fourth fixed block is to the direction removal that is close to first fixed block with the fourth fixed block, and the second is protruding and the outer wall butt of first fixed block, and elastic deformation takes place for the fourth fixed block, and when the second was protruding to be pegged graft with the second joint groove, the fourth fixed block reconversion.

When the third fixed block and the fourth fixed block are respectively spliced with the first fixed block, the first protrusions are inserted into the first clamping grooves, and the second protrusions are inserted into the second clamping grooves, so that the possibility that the third fixed block and the fourth fixed block are respectively separated from the first fixed block is reduced.

Optionally, the end of the first connecting rod close to the first fixing block is fixedly connected with a handle, and the handle is provided with an anti-slip groove.

Through adopting above-mentioned technical scheme, take the head rod when being convenient for measurement personnel detect the water sample, reduced the smooth possibility that drops the head rod of measurement personnel hand.

Optionally, the outer fixed surface that one side of first fixed block was kept away from to the head rod is connected with the fixation clamp, one side that the head rod was kept away from to the fixation clamp is equipped with inward fixed slot, connecting wire and fixed slot joint.

Through adopting above-mentioned technical scheme, the connecting wire squeezes into the fixed slot, connecting wire and fixed slot joint, and the fixation clamp has reduced because the connecting wire overlength when the riverside detects the water sample, and the connecting wire hangs the ruderal possibility in riverbank.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the detector has certain distance from the surface of water, when the detector needs to stretch into the surface of water, the detector inserts the one end that the connecting wire was kept away from to the solid fixed cylinder with the detector earlier, the detector shifts out from the solid fixed cylinder to the direction promotion that keeps away from the head until the one end that the connecting wire was kept away from to the detector, locking Assembly will detect head and solid fixed cylinder locking back, the detector will take out from the sliding tray with second connecting block fixed connection's second connecting rod, take out after suitable length, it is fixed with head and second connecting rod with fixed subassembly. The detector utilizes the telescopic second connecting rod to stretch the detector head below the water surface, the detector head is connected with the tester body through the connecting line, the detector holds the tester body by hand, the tester body displays the dissolved oxygen concentration of the water body, and the detector head is convenient for the detector to stretch into the water surface when the detector is away from the water surface by a certain distance, so that the dissolved oxygen concentration of the water body is detected;

2. when inspection personnel need fixed head rod and second connecting rod, inspection personnel insert the screw hole with screwed one end of first dead lever, twist the second dead lever for the inseparable butt of first dead lever and second connecting rod, head rod and second connecting rod are fixed, and the fixing process is convenient.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a fixing assembly embodied in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a first fixing block in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a second connection block in the embodiment of the present application.

Fig. 5 is a schematic structural view of a locking assembly embodied in the embodiment of the present application.

FIG. 6 is a schematic structural diagram of a detector body according to an embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of a third fixing block in the embodiment of the present application.

Description of reference numerals: 1. a first connecting rod; 11. a sliding groove; 12. a second connecting rod; 13. a threaded hole; 2. a fixing assembly; 21. a first fixing lever; 22. a second fixing bar; 3. a first connection block; 31. a first fixed block; 311. a first groove; 312. a first clamping groove; 313. a second clamping groove; 32. a third fixed block; 321. a fourth groove; 322. reserving a hole; 323. a first protrusion; 33. a fourth fixed block; 331. a fifth groove; 332. a second protrusion; 4. a second connecting block; 41. a fixed cylinder; 411. a third groove; 412. a communicating hole; 42. a detection head; 421. a second groove; 5. a locking assembly; 51. a third fixing bar; 52. a fourth fixing bar; 53. a second fixed block; 54. a spring; 6. a connecting wire; 7. a meter body; 8. a handle; 81. an anti-slip groove; 9. a fixing clip; 91. and fixing the grooves.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a telescoping device for portable dissolved oxygen apparatus.

As shown in fig. 1 and 2, a telescopic device for a portable dissolved oxygen meter comprises a first connecting rod 1, an inward sliding groove 11 is formed at the top of the first connecting rod 1, a second connecting rod 12 is arranged in the sliding groove 11, and the first connecting rod 1 and the second connecting rod 12 are slidably inserted. A fixing component 2 for fixing the first connecting rod 1 and the second connecting rod 12 is arranged between the first connecting rod 1 and the second connecting rod 12.

As shown in fig. 2 and 3, the first connecting rod 1 is fixedly connected with a first connecting block 3, the first connecting block 3 is located at one side far away from the second connecting rod 12, one side of the first connecting block 3 far away from the first connecting rod 1 is fixedly connected with a first fixing block 31, a first groove 311 is inwardly arranged on the surface of the first fixing block 31 far away from the first connecting rod 1, and the measuring instrument body 7 is tightly inserted in the first groove 311.

As shown in fig. 2 and 4, the second connecting rod 12 is fixedly connected with a second connecting block 4, the second connecting block 4 is arranged on one side far away from the first connecting rod 1, one side of the second connecting block 4 far away from the first connecting rod 1 is fixedly connected with a fixing cylinder 41, a detection head 42 is inserted in the fixing cylinder 41 in a sliding manner, and a locking assembly 5 for locking the detection head 42 and the fixing cylinder 41 is arranged between the fixing cylinder 41 and the detection head 42.

One end of the detection head 42 close to the first connecting rod 1 is fixedly connected with a connecting wire 6, and one end of the connecting wire 6 far away from the detection head 42 is fixedly connected with the determinator body 7.

The detection personnel have certain distance from the surface of water, when needing to stretch the detection head 42 into the surface of water, the detection personnel insert the one end that the detection head 42 keeps away from the connecting wire 6 from the one end that the fixed cylinder 41 is close to the first connecting rod 1 earlier, will detect the head 42 and promote to the top of the fixed cylinder 41 to the direction of keeping away from the first connecting rod 1 and expose the detection head 42.

The locking assembly 5 locks the detection head 42 with the fixed cylinder 41, the detection personnel draws the second connecting rod 12 out of the first connecting rod 1, and when the second connecting rod 12 is drawn out by a proper length, the first connecting rod 1 and the second connecting rod 12 are fixed by the fixing assembly 2. The tester body 7 is tightly inserted into the first groove 311 by the tester.

The handheld head rod 1 of detection personnel, the detection head 42 on the control second connecting rod 12 of head rod 1 stretches into the surface of water, and the apparatus body 7 shows water dissolved oxygen concentration, has when detection personnel has certain distance from the surface of water, and the detection personnel of being convenient for will detect head 42 and stretch into the surface of water to detect the effect of water dissolved oxygen concentration.

After the detection is finished, the locking assembly 5 releases the limitation on the detection head 42, the detection head 42 is taken out from the fixed cylinder 41 in the direction close to the first connecting rod 1, the fixing assembly 2 releases the limitation on the second connecting rod 12, and the second connecting rod 12 is retracted into the first connecting rod 1.

The tester takes the tester body 7 out of the first groove 311, and the tester body 7, the connecting wire 6 and the detection head 42 are stored in a storage bag (not shown in the figure), so that the possibility of dirt in the external environment when the tester body 7, the connecting wire 6 and the detection head 42 are not used is reduced.

As shown in fig. 2, the outer surface of the first connecting rod 1 is provided with a threaded hole 13 inward, and the threaded hole 13 is located at one end far away from the meter body 7. The threaded hole 13 is provided in communication with the slide groove 11. The fixing component 2 comprises a first fixing rod 21, the first fixing rod 21 is close to one end of the first connecting rod 1 in a threaded arrangement, one end of the first fixing rod 21 in the threaded arrangement is inserted into the threaded hole 13, the first fixing rod 21 is in threaded connection with the first connecting rod 1, and the surfaces of the first fixing rod 21 and the second connecting rod 12 which are close to each other are tightly abutted. One end of the first fixing rod 21 far away from the second connecting rod 12 is fixedly connected with a second fixing rod 22.

When the detection personnel need fix second connecting rod 12 and head rod 1, detection personnel insert screw hole 13 with the screwed one end of first dead lever 21 in, twist second dead lever 22 for the inseparable butt in surface that first dead lever 21 and second connecting rod 12 are close to each other is fixed with second connecting rod 12 and head rod 1, and fixed process is convenient.

When the second connecting rod 12 needs to be moved, the second fixing rod 22 is screwed, so that the first fixing rod 21 is separated from the threaded hole 13, and the second connecting rod 12 can slide in the sliding groove 11.

As shown in fig. 5, the surface of the detection head 42 is provided with a second groove 421, the inner wall of the fixed cylinder 41 is provided with a third groove 411, the second groove 421 and the third groove 411 are arranged in communication, the outer surface of the fixed cylinder 41 is provided with an inward communication hole 412, and the communication hole 412 and the third groove 411 are arranged in communication.

The locking assembly 5 comprises a third fixing rod 51, one end of the third fixing rod 51 far away from the detection head 42 is fixedly connected with a fourth fixing rod 52, the third fixing rod 51 is connected with the communication hole 412 in an inserting mode, one end of the third fixing rod 51 far away from the fourth fixing rod 52 is located in a third groove 411, one side of the third fixing rod 51 far away from the fourth fixing rod 52 is fixedly connected with a second fixing block 53, and the second fixing block 53 is connected with a second groove 421 in an inserting mode. One side of the second fixed block 53 close to the third fixed rod 51 is fixedly connected with a spring 54, one end of the spring 54 far away from the second fixed block 53 is abutted against the bottom of the third groove 411, the spring 54 is located in the third groove 411, and the spring 54 is sleeved with the third fixed rod 51.

Before the detection head 42 is inserted into the fixed cylinder 41, the spring 54 is in a natural state, and one end of the spring 54 away from the second fixed block 53 is not abutted to the groove bottom of the third groove 411.

As shown in fig. 5, when the detection head 42 and the fixing barrel 41 need to be locked, the detection person pulls the fourth fixing rod 52, so that the second fixing block 53 is located in the third groove 411, the spring 54 is compressed, and one end of the spring 54 far away from the second fixing block 53 abuts against the bottom of the third groove 411. The detection head 42 is inserted into the fixed cylinder 41, the detection head 42 is moved to the end away from the meter body 7, and at the same time, the detection head 42 is rotated so that the second recess 421 communicates with the third recess 411. The detector inserts the second fixing block 53 into the second groove 421, the end of the spring 54 far from the second fixing block 53 abuts against the bottom of the third groove 411, the spring 54 is in a compressed state, the detection head 42 and the fixing cylinder 41 are locked, and the locking process is simple.

When the detection head 42 needs to be taken down from the fixing cylinder 41, the detection person pulls the fourth fixing rod 52 in a direction away from the fixing cylinder 41 with force, the fourth fixing rod 52 pulls the third fixing rod 51, the third fixing rod 51 pulls the second fixing block 53, the spring 54 is further compressed, the second fixing block 53 is positioned in the third groove 411, then the detection head 42 is moved towards the direction close to the measuring instrument body 7, and the detection head 42 is separated from the fixing cylinder 41.

As shown in fig. 1 and 6, a third fixing block 32 is disposed at one end of the first fixing block 31 close to the connecting wire 6, a fourth groove 321 is inwardly disposed at one side of the third fixing block 32 close to the first fixing block 31, and one end of the first fixing block 31 close to the third fixing block 32 is tightly inserted into the fourth groove 321. A preformed hole 322 is arranged on the third fixing block 32, and the connecting wire 6 passes through the preformed hole 322.

A fourth fixing block 33 is arranged at one end of the first fixing block 31 far away from the connecting wire 6, a fifth groove 331 is inwards arranged at one side of the fourth fixing block 33 close to the first fixing block 31, and one end of the first fixing block 31 close to the fourth fixing block 33 is tightly inserted into the fifth groove 331.

As shown in fig. 6 and 7, when a tester tests a water sample, the first fixing block 31 may tilt along with the first connecting rod 1, the tester body 7 may fall out of the first groove 311, and the third fixing block 32 and the fourth fixing block 33 block the tester body 7, thereby reducing the possibility that the tester body 7 falls out of the first groove 311.

When the detector body 7 needs to be stored by a detector, the third fixing block 32 and the fourth fixing block 33 are separated from the first fixing block 31, the detector body 7 is taken out of the first groove 311, and the first fixing block 31, the connecting line 6 and the detector body 7 are stored together.

As shown in fig. 6 and 7, the third fixing block 32 is made of a material that can be elastically deformed by an external force, a pair of first protrusions 323 are integrally formed on a pair of inner walls of the third fixing block 32, and the first protrusions 323 are located in the fourth grooves 321. A pair of first clamping grooves 312 are formed in the outer walls of the first fixing block 31, the first protrusions 323 correspond to the first clamping grooves 312 one by one, and the first protrusions 323 are inserted into the first clamping grooves 312.

When the third fixing block 32 needs to be fixed to the first fixing block 31, the pair of inner walls of the third fixing block 32 abuts against the outer wall of the first fixing block 31, the third fixing block 32 is moved towards the direction close to the first fixing block 31, the first protrusion 323 abuts against the outer wall of the first fixing block 31, the third fixing block 32 is elastically deformed, and when the first protrusion 323 is inserted into the first clamping groove 312, the third fixing block 32 is restored to the original state.

The fourth fixing block 33 is made of a material capable of elastically deforming under an external force, a pair of second protrusions 332 are integrally formed on two sides of the fourth fixing block 33, the second protrusions 332 are located in the fifth grooves 331, a pair of second clamping grooves 313 are formed in two sides of the first fixing block 31, the second protrusions 332 correspond to the second clamping grooves 313 one to one, and the second protrusions 332 are connected with the second clamping grooves 313 in an inserting mode.

When the fourth fixed block 33 needs to be fixed to the first fixed block 31, the pair of inner walls of the fourth fixed block 33 abuts against the outer wall of the first fixed block 31, the fourth fixed block 33 is moved towards the direction close to the first fixed block 31, the second protrusion 332 abuts against the outer wall of the first fixed block 31, the fourth fixed block 33 is elastically deformed, and when the second protrusion 332 is inserted into the second clamping groove 313, the fourth fixed block 33 is restored to the original state.

When the upper end of the first fixing block 31 is inserted into the fourth groove 321 and the lower end of the first fixing block 31 is inserted into the fifth groove 331, the first protrusion 323 is inserted into the first catching groove 312 and the second protrusion 332 is inserted into the second catching groove 313, so that the possibility that the third fixing block 32 and the fourth fixing block 33 are separated from the first fixing block 31 respectively is reduced.

As shown in fig. 6, the end portion of the first connecting rod 1 close to the first fixing block 31 is fixedly connected with a handle 8, and the handle 8 is provided with an anti-slip groove 81, so that the detecting personnel can conveniently take up the first connecting rod 1 when detecting a water sample, and the possibility that the detecting personnel drop the first connecting rod 1 due to hand slip is reduced.

As shown in fig. 2 and 3, the outer surface of the first connecting rod 1 far away from the first fixing block 31 is fixedly connected with a fixing clip 9 which can elastically deform under external force, an inward fixing groove 91 is formed in one side of the fixing clip 9 far away from the first connecting rod 1, the connecting wire 6 is squeezed into the fixing groove 91, and the connecting wire 6 is clamped with the fixing groove 91, so that the possibility that the connecting wire 6 hangs weeds beside a river bank due to overlong length of the connecting wire 6 when a water sample is detected beside the river is reduced.

The implementation principle of the telescopic device for the portable dissolved oxygen tester is as follows: the detection personnel have certain distance from the surface of water, when needing to stretch the detection head 42 into the surface of water, the detection personnel insert the one end that the detection head 42 keeps away from the connecting wire 6 from the one end that the fixed cylinder 41 is close to the first connecting rod 1 earlier, will detect the head 42 and promote to the top of the fixed cylinder 41 to the direction of keeping away from the first connecting rod 1 and expose the detection head 42.

The inspector will pull the fourth fixing rod 52 so that the second fixing block 53 is located in the third recess 411, the spring 54 is compressed, and one end of the spring 54 away from the second fixing block 53 abuts against the bottom of the third recess 411.

The detection head 42 is inserted into the fixed cylinder 41, the detection head 42 is moved to the end away from the meter body 7, and at the same time, the detection head 42 is rotated so that the second recess 421 communicates with the third recess 411. The detector inserts the second fixing block 53 into the second groove 421, the end of the spring 54 far from the second fixing block 53 abuts against the groove bottom of the third groove 411, the spring 54 is in a compressed state, and the detection head 42 and the fixing cylinder 41 are locked.

The detector takes out second connecting rod 12 from head rod 1, waits for second connecting rod 12 to take out suitable length, and the detector inserts first dead lever 21 screwed one end into screw hole 13, twists second dead lever 22 for the surface that first dead lever 21 and second connecting rod 12 are close to each other is closely supported, and is fixed with second connecting rod 12 and head rod 1.

The tester body 7 is tightly inserted into the first groove 311 by the tester, the upper end of the first fixing block 31 is inserted into the fourth groove 321, the lower end of the first fixing block 31 is inserted into the fifth groove 331, the first protrusion 323 is inserted into the first clamping groove 312, and the second protrusion 332 is inserted into the second clamping groove 313.

The first connecting rod 1 is held by a tester, the first connecting rod 1 controls the detection head 42 on the second connecting rod 12 to extend into the water surface, and the tester body 7 displays the concentration of dissolved oxygen in the water body.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a telescoping device for portable dissolved oxygen apparatus, portable dissolved oxygen apparatus includes apparatus body (7), one end fixedly connected with connecting wire (6) of apparatus body (7), the one end fixedly connected with detection head (42) of apparatus body (7) are kept away from in connecting wire (6), its characterized in that: the telescopic device comprises a first connecting rod (1), one end of the first connecting rod (1) is provided with an inward sliding groove (11), a second connecting rod (12) is inserted in the sliding groove (11) in a sliding manner, and a fixing assembly (2) for fixing the second connecting rod (12) is arranged between the first connecting rod (1) and the second connecting rod (12);

one side fixedly connected with second connecting block (4) of head (1) is kept away from in second connecting rod (12), second connecting block (4) fixedly connected with supplies to detect solid fixed cylinder (41) that head (42) slided and peg graft, gu be equipped with between fixed cylinder (41) and detection head (42) and detect locking Assembly (5) that head (42) locked.

2. The telescopic device for a portable dissolved oxygen meter according to claim 1, characterized in that: fixed subassembly (2) include first dead lever (21) that one end screw thread set up, the surface of first connecting rod (1) is inwards equipped with screw hole (13) that set up with sliding tray (11) intercommunication, first dead lever (21) and screw hole (13) threaded connection, the inseparable butt in surface that first dead lever (21) and second connecting rod (12) are close to each other, one end fixedly connected with second dead lever (22) of second connecting rod (12) are kept away from in first dead lever (21).

3. The telescopic device for a portable dissolved oxygen meter according to claim 2, characterized in that: locking Assembly (5) include third dead lever (51), be equipped with second recess (421) on detection head (42), the inner wall of fixed section of thick bamboo (41) is equipped with third recess (411) that set up with second recess (421) intercommunication, the surface of fixed section of thick bamboo (41) is equipped with intercommunicating pore (412) with third recess (411) intercommunication, third dead lever (51) are pegged graft with intercommunicating pore (412), second fixed block (53) that third dead lever (51) fixedly connected with and second recess (421) are pegged graft, one side fixedly connected with spring (54) that second fixed block (53) are close to in second fixed block (53), the one end that second fixed block (53) were kept away from in spring (54) and the tank bottom butt of third recess (411), spring (54) are in compression state.

4. The telescopic device for a portable dissolved oxygen meter according to claim 3, characterized in that: and a fourth fixing rod (52) is fixedly connected to one end, far away from the fixing barrel (41), of the third fixing rod (51).

5. The telescopic device for a portable dissolved oxygen meter according to claim 3, characterized in that: one side fixedly connected with first connecting block (3) that second connecting rod (12) were kept away from in first connecting rod (1), first connecting block (3) fixedly connected with first fixed block (31), the surface that first connecting rod (1) were kept away from in first fixed block (31) is equipped with first recess (311) that supplies apparatus body (7) closely to peg graft inwards.

6. The telescopic device for a portable dissolved oxygen meter according to claim 5, wherein: one end that first fixed block (31) is close to connecting wire (6) is equipped with third fixed block (32), be equipped with fourth recess (321) in third fixed block (32), first fixed block (31) closely pegs graft with fourth recess (321), be equipped with preformed hole (322) that supply connecting wire (6) to pass on third fixed block (32), the one end that connecting wire (6) were kept away from in first fixed block (31) is equipped with fourth fixed block (33), be equipped with fifth recess (331) in fourth fixed block (33), first fixed block (31) closely pegs graft with fifth recess (331).

7. The telescopic device for a portable dissolved oxygen meter according to claim 6, wherein: a pair of inner wall homogeneous body shaping of third fixed block (32) has a pair of first arch (323) that is located fourth recess (321), a pair of outer wall of first fixed block (31) is equipped with a pair of first joint groove (312) with first arch (323) one-to-one, and first arch (323) are pegged graft with first joint groove (312), a pair of outer wall integrated into one piece of fourth fixed block (33) has a pair of protruding (332) of second that is located fifth recess (331), a pair of outer wall of first fixed block (31) is equipped with a pair of second joint groove (313) with the protruding (332) one-to-one of second, and the protruding (332) of second is pegged graft with second joint groove (313).

8. The telescopic device for a portable dissolved oxygen meter according to claim 7, wherein: the end part, close to the first fixing block (31), of the first connecting rod (1) is fixedly connected with a handle (8), and an anti-skidding groove (81) is formed in the handle (8).

9. The telescopic device for a portable dissolved oxygen meter according to claim 6, wherein: the surface fixedly connected with fixation clamp (9) of one side of keeping away from first fixed block (31) in connecting rod (1), one side that first connecting rod (1) was kept away from in fixation clamp (9) is equipped with inside fixed slot (91), connecting wire (6) and fixed slot (91) joint.

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