CN114247492B - Rapidly-fixed detection equipment for chemical engineering inspection and use method thereof - Google Patents

Abstract

The invention relates to the technical field of chemical inspection, in particular to a rapidly-fixed detection device for chemical inspection and a using method thereof. The detection equipment capable of being fixed quickly for chemical engineering inspection and the use method thereof are characterized in that a gun head of a liquid transfer gun is covered quickly, the gun head cover of the liquid transfer gun is not required to be pulled out and inserted independently manually, the liquid transfer gun can be placed and fixed through one-hand operation, the use is more flexible and convenient, the whole operation can be realized only by controlling the pressing of a trigger set, a user unlocks an operation part while grasping a handle to take liquid and transfer liquid conveniently, otherwise, when the user does not grasp the handle to start the trigger set, the operation part of the liquid transfer gun is locked, the liquid transfer gun is prevented from being touched by mistake and started under collision impact, the whole operation can be realized only by controlling the pressing of the trigger set, the secondary locking of the trigger set can be realized reversely, and all operations in the effects can not be started.

Description

A fast-fixable detection device for chemical inspection and its use method

technical field

The invention relates to the technical field of chemical inspection, in particular to a fast-fixable detection device for chemical inspection and a method for using the same.

Background technique

Chemical inspection refers to the use of chemical analysis instruments, physical and chemical instruments and other equipment to test the finished products of chemical products such as reagent solvents, daily chemicals, chemical fertilizers, chemical pesticides, paint dyes and pigments, coal coking, cement and gases, etc. by means of sampling inspection. , semi-finished products, raw materials and intermediate processes for inspection, testing, testing, monitoring and analysis, and in actual operation, inspectors generally need to use pipettes, pipettes are a kind of pipettes, commonly used in laboratories for small quantities Or the pipetting of tiny amounts of liquid, in the process of biological, medical and chemical experiments, it is necessary to repeatedly use a large number of pipettes.

The existing patent (publication number: CN109999936B) discloses a high-precision quantitative pipette gun for biological/chemical/medical testing and detection, including a gun case, on which a pipetting device for quantitative liquid extraction is installed. The liquid volume adjustment device for adjusting the liquid volume of the pipetting device, and the limit device for synchronously changing the limit distance of the liquid pipetting device according to the data change of the liquid volume adjustment device and making the liquid pipetting device quantitatively take liquid, said The gun shell is provided with a grip hole for the user to hold, and the gun shell is also provided with an installation sleeve. There are three sets of installation sleeves, which are installed along the length of the gun shell and pointing from the gun head to the gun tail. 1. Installation Set two, install set three. In the process of realizing the present invention, the inventor found that the existing technology has the following problems: 1. The existing pipette gun needs to be manually pulled out and plugged in before it can be used or placed and fixed. The operation is cumbersome and cannot be operated with one hand; The unlocking of the operation part of the pipette only needs to be done by pressing the control block, which has poor safety effect and is easy to accidentally touch.

In view of this, we propose a fast-fixable detection device for chemical inspection and its application method.

Contents of the invention

The purpose of the present invention is to provide a fast-fixable detection device for chemical inspection and its use method, so as to solve the problem that the existing pipette gun needs to be manually unplugged and inserted to be used or placed and fixed in the background technology, and the operation is relatively troublesome. And it cannot be operated with one hand. It only needs to press the control block to unlock the operation part of the pipette gun. The safety effect is poor and it is easy to accidentally touch the problem. In order to achieve the above object, the present invention provides the following technical solutions: a fast-fixable detection device for chemical inspection, including a pipette, an end seat and a handle, the end seat is fixedly connected to the top of the handle, and the end seat and the handle The left side of the surface is fixedly connected with a protrusion for installing a pipette, and the pipette is fixedly plugged into the protrusion.

The bottom of the handle is provided with a lower chamber that communicates with the outside, and the interior of the lower chamber and the surface of the pipette are provided with a serial control kit that can slide along the tip of the pipette, and the inside of the end seat is movably connected with A slide lock that locks the operation part of the pipette.

The inside of the handle is provided with an inner chamber, and the inner circle of the handle surface is provided with a self-limiting groove communicating with the inner chamber, and the inside of the self-limiting groove is slidably connected with a trigger group that drives the serial control kit and the sliding lock to operate. A telescoping air bag for pushing the trigger set is fixedly connected between the trigger set and the inner bore, and a secondary insurance for locking the trigger set is connected to the right side of the handle surface for rotation.

Preferably, the serial control kit includes a metal stub 1, the metal stub 1 is vertically rotated and plugged into the handle, and the upper and lower ends of the metal stub 1 extend into the inner bore and the lower cavity respectively, The lower side of the surface of the trigger unit is provided with a cutout, and the inner wall of the cutout is provided with a tooth groove, and the top end of the short metal column 1 is fixedly connected with a tooth-shaped notch disc meshing with the tooth groove.

The interior of the lower cavity is connected to the second metal short column through the rotation of the wall ring. The surface of the second metal short column is movably sleeved with an elastic spiral wire, and the two ends of the elastic spiral wire are respectively clamped on the second metal short column. And on the wall ring, the right end of the metal stub 2 and the bottom end of the metal stub 1 are fixedly connected with a conical disc 1 with toothed notches that mesh with each other, and the left end of the metal stud 2 is fixedly connected with a conical disc with a toothed notch two.

The inner part of the lower cavity is connected with disc 1 for rotation, and the surface of said disc 1 is fixedly connected with a toothed ring intermeshing with tooth-shaped notch cone disc 2, and the outer ring of disc 1 is provided with a tooth mouth, and said The inner part of the lower cavity is connected with the disc two, and the middle part of the two surfaces of the discs is protruded with an enlarged toothed disc meshing with the teeth, and the outer ring of the two surfaces of the discs is provided with an annular notch.

The surface of the tip of the pipette gun is movably socketed with a holster, the surface of the holster is provided with a socket matching the handle, and the surface of the handle is provided with a slot that slides and fits with the socket. The holster slides along the surface of the handle through the slot.

The outer part of the annular notch is located in the socket, and the inner wall of the socket is provided with a toggle transverse groove which engages with the annular notch.

Preferably, the sliding lock part includes an inner cavity, the inner cavity is opened inside the upper convex seat and the end seat and includes the operation part of the pipette gun, and the inner cavity is slidably connected with a sliding core, the inner cavity The surface of the operation part of the pipette is provided with ring patterns, and the end surface on the left side of the sliding core is provided with grooves matching the operation part of the pipette.

The middle part of the surface of the sliding core is provided with an internal passage groove, and the top of the inner cavity is fixedly connected with an inserting plate, the inserting plate is located in the internal passage groove, and an elastic spiral strip is fixedly connected between the inserting plate and the internal passage groove .

Preferably, the trigger group includes a main trigger, the main trigger is slidably connected in the self-limiting groove, and the inside of the main trigger is provided with an engaging groove, the inside of the engaging groove is slidably connected with a safety plate, and the telescopic The air bag is fixedly connected with the insurance sheet.

The inside of the end seat is provided with a transverse hole connecting the inner cavity and the inner bore, and the inner part of the transverse hole is slidably connected with an L connecting rod, and the upper end of the safety plate is fixedly connected with the L connecting rod, and the left side of the L connecting rod The vertical part is movably plugged into the inner channel.

Preferably, the secondary safety includes an arc opening, which is opened on the right side of the handle surface and communicates with the inner bore and the transverse hole, and the inner bore is rotatably connected with a pressing piece fitted with the arc opening, The upper end of the pressing piece is fixedly connected with a shrapnel that conflicts with the inner wall of the inner chamber, and the top end of the pressing piece is set as an inclined surface.

The front and rear sides of the inner wall of the crossing hole are provided with end grooves, and the inner sides of the two end grooves are slidably connected with bayonet pins matched with the inclined surface. Closed pins.

Preferably, a bearing is embedded at the joint between the metal stub one and the handle.

Preferably, the surface of the pressing sheet is provided with anti-skid lines.

A method for using a fast-fixable detection device for chemical inspection, comprising the following steps:

S1. Pass the palm of the hand through the handle and grasp it. During this process, the user's palm first touches the pressing piece, and pushes the pressing piece to rotate the shrapnel into the inner chamber. At this time, the inclined surface on the top of the pressing piece is released as shown in the figure. The push against the bayonet shown in , makes the bayonet slide freely in the end groove to release the fitting with the pin opening, so as to unlock the L connecting rod.

S2. During the above process, the user's fingers are simultaneously pressed into the trigger group along the handle. The fingers first contact the safety plate and push it to shrink inward along the engaging groove and compress the telescopic airbag, and then push the main trigger along the self-limiting groove. The sliding, sliding main trigger moves the toothed notched disc and the metal stub through the cogging on its lower surface to rotate, and uses the two toothed notched cones that mesh with each other to continuously link the metal stud to rotate, and the rotating metal The short column 2 tightens the elastic spiral wire to store force, and the rotating metal short column 2 uses the toothed notch cone plate 2 to push the gear ring and the disc 1 to rotate, and the disc 1 moves through the tooth gap of its outer ring The magnified toothed disc and disc 2 rotate, and the clockwise-rotating disc 2 pushes the horizontal groove upwards through the annular notch, so as to control the sliding of the holster along the slot. At this time, the tip of the pipette is ready. is relatively pushed out for use.

S3. When the trigger unit is internally pressed in the above operation, the retracted safety plate synchronously pushes the L connecting rod to slide right along the transverse hole to release the locking of the sliding core from the internal passage groove. At this time, the elastic spiral strip pushes the sliding core with the insert plate as the base point Slide to the right to release the fit between the groove and the ring, and the operation part of the pipette gun is unlocked, so that the user can unlock the operation part while grasping the handle to facilitate liquid extraction and pipetting, otherwise the user does not grasp the handle to start When the trigger is set, the operation part of the pipette gun is locked, which prevents the pipette gun from being accidentally touched, bumped and started.

S4. When the pipette gun needs to be placed, just loosen the buckle on the trigger group directly. The compressed telescopic air bag pushes the trigger group back to its position, and the elastic helical metal wire with the force pushes the metal short column to make two turns, so that the disc 2. Rotate counterclockwise to push the holster back down along the card slot to the position as shown in the figure, so as to quickly cover the tip of the pipette without manually pulling out and inserting the tip cover of the pipette, at the same time The returned safety piece pushes the sliding core back through the L connecting rod to lock the operation part of the pipette. At this time, the pipette cannot be started, and the overall operation can be realized only by controlling the pressing of the trigger group.

S5. After the device is completely detached from the user's palm, due to the lack of pressing on the pressing piece, the shrapnel pushes the pressing piece back to its position, and pushes the bayonet to move up along the end groove through the inclined surface at the top until it is embedded in the pin opening Lock the L connecting rod, so as to reversely realize the secondary locking of the trigger group, that is, all the above-mentioned operations cannot be started when the handle is not held against the pressing piece.

Compared with prior art, the beneficial effect of the present invention:

In the present invention, the trigger group is pressed into the interior of the handle along the handle by the normal action of grasping the handle, and after power transmission, the horizontal groove is pushed upward through the annular notch, so as to control the sliding and opening of the holster along the slot. Pipette gun head, when placing the pipette, just loosen the buckle on the trigger group directly, the compressed telescopic air bag pushes the trigger group back to its position, and the elastic helical metal wire with the force pushes the metal short column to make two turns, making the disc 2. Rotate counterclockwise and push the holster to slide back down along the card slot, so as to quickly cover the tip of the pipette, without manually pulling out and inserting the tip cover of the pipette, it can be placed and fixed with one hand. The liquid gun is more flexible and convenient to use, and the overall operation can be realized only by controlling the pressing of the trigger group.

In the present invention, when passing through the internal pressure trigger group, the retracted safety piece synchronously pushes the L connecting rod to slide right along the transverse hole to release the locking of the sliding core from the internal passage groove, and at this time, the elastic spiral bar pushes the sliding core with the insertion plate as the base point Slide to the right to release the fit between the groove and the ring, and the operation part of the pipette gun is unlocked, so that the user can unlock the operation part while grasping the handle to facilitate liquid extraction and pipetting, otherwise the user does not grasp the handle to start When the trigger group is activated, the operation part of the pipette gun is locked, which prevents the pipette gun from being accidentally touched or knocked and started. The overall operation can be realized only by controlling the pressing of the trigger group.

In the present invention, by setting the secondary safety on the handle, after the device is completely separated from the user's palm, due to the lack of pressing on the pressing piece, the elastic piece pushes the pressing piece back to its position, and pushes the bayonet along the inclined surface of the top of the device. The end groove moves up until the L connecting rod is locked in the pin entry hole, so as to realize the secondary locking of the trigger group in reverse, that is, when the handle is not held against the pressing piece, all the operations in the above effects Neither can be started.

Description of drawings

Fig. 1 is the front view among the present invention;

Fig. 2 is a front sectional view among the present invention;

Fig. 3 is the enlarged view of place A in Fig. 2 among the present invention;

Fig. 4 is a schematic diagram of the three-dimensional structure of the holster in Fig. 2 in the present invention;

Fig. 5 is a front sectional view of the trigger group in Fig. 2 in the present invention;

Figure 6 is a partial front sectional view of the present invention;

Fig. 7 is an enlarged view of B in Fig. 6 in the present invention.

In the figure: 1. Pipette gun; 2. End seat; 3. Handle; 4. Protrusion seat; 5. Lower cavity; 6. Continuous control kit; 61. Metal stub 1; 64. Toothed notch disk; 65. Wall ring; 66. Metal stub two; 67. Elastic spiral wire; 68. One toothed notch cone; 69. Two toothed notch cone; 610. Disc one; 611, gear ring; 612, gear opening; 613, disc two; 614, enlarged gear disc; 615, annular notch; 616, holster; 617, inset; 618, card slot; ; 7, sliding lock portion; 71, inner cavity; 72, sliding core; 73, ring pattern; 74, groove; 75, internal passage groove; 76, inserting plate; , self-limiting groove; 10, trigger group; 101, main trigger; 102, engaging groove; 103, safety plate; 104, transverse hole; 105, L connecting rod; 11, telescopic airbag; 122, pressing piece; 123, shrapnel; 124, inclined surface; 125, end slot; 126, bayonet pin; 127, pin opening.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1 to Fig. 7, the present invention provides a kind of technical scheme: a kind of detection equipment that can be quickly fixed for chemical inspection, comprises pipette gun 1, end seat 2 and handle 3, and end seat 2 is fixedly connected to handle 3 The top, and the left side of the surface of the end seat 2 and the handle 3 are fixedly connected with the convex seat 4 for installing the pipette gun 1, and the pipette gun 1 is fixedly inserted on the convex seat 4;

The bottom of the handle 3 is provided with a lower cavity 5 communicating with the outside, and the interior of the lower cavity 5 and the surface of the pipette gun 1 are provided with a serial control kit 6 that can slide along the tip of the pipette gun 1, and the inner part of the end seat 2 is flexibly connected There is a slide lock part 7 for locking the operation part of the pipette gun 1;

The inside of the handle 3 is provided with an inner chamber 8, and the inner circle of the surface of the handle 3 is provided with a self-limiting groove 9 communicating with the inner chamber 8, and the inner part of the self-limiting groove 9 is slidably connected with a driving serial control kit 6 and a sliding lock part 7 for operation. The trigger unit 10 is fixedly connected between the trigger unit 10 and the inner bore 8 to be used for pushing the trigger unit 10 outwardly.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the serial control kit 6 includes a metal stub 61, and the metal stub 61 is vertically rotated and plugged into the handle 3, and the metal The upper and lower ends of the stub 61 respectively extend into the inner bore 8 and the lower cavity 5, the lower side of the trigger unit 10 surface is provided with a notch 62, and the inner wall of the notch 62 is provided with a tooth groove 63, and the top of the metal stub 61 is Fixedly connected with a toothed gap disc 64 that meshes with the tooth groove 63;

The interior of the lower cavity 5 is connected with the metal stub 2 66 through the rotation of the wall ring 65. The surface of the metal stub 2 66 is movably sleeved with an elastic spiral wire 67, and the two ends of the elastic spiral wire 67 are respectively clamped on the metal short. On the column two 66 and the wall ring 65, the right end of the metal short column two 66 and the bottom end of the metal short column one 61 are all fixedly connected with a toothed notch cone one 68 that meshes with each other, and the sliding main trigger 101 passes through the bottom surface of the metal short column one. The tooth groove 63 moves the toothed notch disc 64 and the metal stub one 61 to rotate, and utilizes the two toothed notch conical discs one 68 that are meshed with each other to continuously link the metal stub two 66 to rotate, and the left end of the metal stub two 66 is fixed Connected with a toothed notch cone 2 69, the rotating metal stub 2 66 tightens the elastic helical wire 67 to store power;

The inner part of the lower cavity 5 is connected with a disc one 610 for rotation, and the surface of the disc one 610 is fixedly connected with a toothed ring 611 which meshes with the toothed notch cone two 69, and the rotating metal stub two 66 utilizes the toothed notch cone Disk 2 69 pushes gear ring 611 and disk 1 610 to rotate, and the outer ring of disk 1 610 is provided with tooth opening 612, and the inner rotation of lower cavity 5 is connected with disk 2 613, and the middle part of the surface of disk 2 613 is convex. There is an enlarged toothed plate 614 that meshes with the tooth opening 612, and the first disc 610 moves the enlarged toothed plate 614 and the second disc 613 to rotate through the tooth opening 612 of its outer ring, and the outer ring on the surface of the second disc 613 is opened There is an annular notch 615;

The surface of the tip of the pipette gun 1 is movably fitted with a holster 616, and the surface of the holster 616 is provided with a socket 617 that matches the handle 3, and the surface of the handle 3 is provided with a slot 618 that slides and fits with the socket 617. , the holster 616 slides along the surface of the handle 3 through the slot 618;

The outer part of the annular notch 615 is located in the socket 617, and the inner wall of the socket 617 is provided with a toggle horizontal groove 619 that engages with the annular notch 615, and the clockwise rotating disc 2 613 passes through the circular groove. The opening 615 pushes the horizontal slot 619 to the upper side, so as to control the sliding of the holster 616 along the slot 618 .

In this embodiment, as shown in FIG. 2 and FIG. 6 , the sliding lock part 7 includes an inner cavity 71, which is opened inside the upper convex seat 4 and the end seat 2 and includes the operation part of the pipette gun 1, And the inner cavity 71 is slidably connected with a sliding core 72, the surface of the operating part of the pipette gun 1 is provided with a ring pattern 73, and the end surface on the left side of the sliding core 72 is provided with a groove 74 matching the operating part of the pipetting gun 1 ;

The middle part of the surface of the sliding core 72 is provided with an inner through groove 75, and the top of the inner cavity 71 is fixedly connected with an inserting plate 76, and the inserting plate 76 is located in the inner through groove 75, and an elastic force is fixedly connected between the inserting plate 76 and the inner through groove 75. The spiral strip 77, the elastic spiral strip 77 normally pushes the sliding core 72 to move away from the operation part of the pipette gun 1, and the retracted safety plate 103 can synchronously push the L connecting rod 105 to slide right along the transverse hole 104 to release from the inner channel 75 For the locking of the sliding core 72, at this time, the elastic helical strip 77 pushes the sliding core 72 to slide to the right with the insertion plate 76 as the base point to release the fit between the groove 74 and the ring 73, and the operation part of the pipette gun 1 is unlocked.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6 and Fig. 7, the trigger unit 10 includes a main trigger 101, the main trigger 101 is slidably connected in the self-limiting groove 9, and the inside of the main trigger 101 is opened There is an engaging groove 102, and the inside of the engaging groove 102 is slidably connected with a safety plate 103, and the telescopic airbag 11 is fixedly connected with the safety plate 103. The user’s finger is pressed into the trigger unit 10 along the handle 3, and the finger first touches the safety plate. 103 contacts and pushes it to shrink and compress the telescopic airbag 11 along the engaging groove 102, and then pushes the main trigger 101 to slide along the self-limiting groove 9;

The inside of the end seat 2 is provided with a transverse hole 104 connecting the inner cavity 71 and the inner bore 8, and the inner part of the transverse hole 104 is slidably connected with an L connecting rod 105, and the upper end of the insurance piece 103 is fixedly connected with the L connecting rod 105, and the L connecting rod The vertical part on the left side of 105 is movably inserted in the inner channel 75.

In this embodiment, as shown in FIG. 1 , FIG. 2 , FIG. 6 and FIG. 7 , the secondary insurance 12 includes an arc opening 121 which is opened on the right side of the surface of the handle 3 and communicates with the inner chamber 8 and the transverse hole 104 , and the inside of the inner chamber 8 is rotatably connected with a pressure piece 122 fitted with the arc opening 121, and the upper end of the pressure piece 122 is fixedly connected with a shrapnel 123 that conflicts with the inner wall of the inner chamber 8, and the top end of the pressure piece 122 is set to be inclined face 124;

End slots 125 are provided on the front and rear sides of the inner wall of the transverse hole 104, and the inner sides of the two end slots 125 are slidingly connected with bayonet pins 126 that match the inclined surface 124. The lower side of the surface of the L connecting rod 105 is provided with bayonet pins 126. The fitted pin mouth 127, when the user's palm grasps the handle 3, the tiger's mouth part can contact the pressing piece 122, and push the pressing piece 122 to buckle the shrapnel 123 to rotate in the inner chamber 8. At this time, the inclined surface on the top of the pressing piece 122 124 releases the push against the bayonet pin 126 as shown in the figure, so that the bayonet pin 126 slides freely in the end groove 125 and releases the engagement with the pin opening 127 , thereby unlocking the L connecting rod 105 .

In this embodiment, as shown in Figure 2 and Figure 3, a bearing is embedded in the connection between the metal stub-61 and the handle 3, and the bearing can effectively reduce the friction coefficient during the movement of the metal stub-61, and can At the same time, and to ensure its rotation accuracy.

In this embodiment, as shown in Fig. 1, Fig. 2, Fig. 6 and Fig. 7, the surface of the pressing sheet 122 is provided with anti-slip lines, which are used to improve the friction force when the user's palm is attached to the pressing sheet 122, so as to ensure Unlock stability.

A method for using a fast-fixable detection device for chemical inspection, comprising the following steps:

S1. Pass the palm of the hand through the handle 3 and grasp it. During this process, the user's palm first touches the pressing piece 122, and pushes the pressing piece 122 to buckle the shrapnel 123 to rotate in the inner chamber 8. At this time, the top of the pressing piece 122 The inclined surface 124 of the slanted surface 124 releases the resistance to the bayonet pin 126 as shown in the figure, so that the bayonet pin 126 slides freely in the end groove 125 and releases the fitting with the pin opening 127, thereby unlocking the L connecting rod 105;

S2. During the above process, the user's fingers are simultaneously pressed into the trigger unit 10 along the handle 3. The fingers first contact the safety plate 103 and push it to shrink inward along the engaging groove 102 and compress the telescopic airbag 11, and then push the main trigger. 101 slides along the self-limiting groove 9, and the sliding main trigger 101 moves the toothed notch disc 64 and the metal stub 61 through the tooth groove 63 on its lower surface to rotate, and utilizes two toothed notch cones that mesh with each other. 68 continuously links metal short column 2 66 to rotate, and the rotating metal short column 2 66 tightens the elastic spiral wire 67 to store power, and the rotating metal short column 2 66 uses the toothed notch cone 69 to push the gear ring 611 and the circle Disk 1 610 rotates, and disk 1 610 moves the enlarged toothed disk 614 and disk 2 613 to rotate through the tooth opening 612 of its outer ring, and the clockwise rotating disk 2 613 pushes upward through the annular notch 615 Move the horizontal groove 619 to control the sliding of the holster 616 along the slot 618. At this time, the tip of the pipette gun 1 is relatively pushed out and can be used;

S3. When the trigger unit 10 is internally pressed in the above operation, the retracted safety plate 103 synchronously pushes the L connecting rod 105 to slide right along the transverse hole 104 to release the locking of the sliding core 72 from the internal channel 75. At this time, the elastic spiral bar 77 is The insert plate 76 is the base point to push the sliding core 72 to slide to the right to release the fit between the groove 74 and the ring 73, and the operation part of the pipette gun 1 is unlocked, so that the user can unlock the operation part while grasping the handle 3 for easy removal. Conversely, when the user does not grasp the handle 3 to start the trigger unit 10, the operation part of the pipette gun 1 is locked, which prevents the pipette gun 1 from being accidentally touched or knocked down to start;

S4. When the pipette gun 1 needs to be placed, just loosen the buckle on the trigger unit 10 directly, the compressed telescopic air bag 11 pushes the trigger unit 10 back to its position, and the elastic helical wire 67 that stores force pushes the metal short column 2 66 to rotate , so that the disc 2 613 rotates counterclockwise and pushes the holster 616 to slide back along the slot 618 to its position as shown in the figure, so that the tip of the pipette gun 1 can be quickly covered, without manual pipetting The tip cover of the gun 1 is pulled out and inserted, and at the same time, the returned safety plate 103 pushes back the sliding core 72 through the L connecting rod 105 to lock the operation part of the pipette gun 1. At this time, the pipette gun 1 cannot be started, and the overall operation only needs to be controlled. It can be realized by pressing the trigger group 10;

S5. After the device is completely detached from the palm of the user, due to the lack of pressing on the pressing piece 122, the shrapnel 123 pushes the pressing piece 122 back to its position, and pushes the bayonet pin 126 to move up along the end groove 125 through the inclined surface 124 on its top, Until the locking of the L connecting rod 105 in the pin opening 127 is embedded, the secondary locking of the trigger unit 10 is realized in reverse, that is, when the handle 3 is not grasped and pressed against the pressing piece 122, all the above operations can be performed. Unable to start.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a chemical industry inspection is with check out test set that can fix fast, includes pipette (1), end seat (2) and handle (3), its characterized in that: the end seat (2) is fixedly connected to the top of the handle (3), the left sides of the surfaces of the end seat (2) and the handle (3) are fixedly connected with a convex seat (4) for mounting a liquid-transferring gun (1), and the liquid-transferring gun (1) is fixedly inserted on the convex seat (4);

a lower cavity (5) communicated with the outside is formed in the bottom of the handle (3), a continuous control suite (6) capable of sliding along the gun head of the liquid-transferring gun (1) is arranged in the lower cavity (5) and on the surface of the liquid-transferring gun (1), and a sliding lock part (7) for locking the operation part of the liquid-transferring gun (1) is movably connected in the end seat (2);

an inner chamber (8) is formed in the handle (3), a self-limiting groove (9) communicated with the inner chamber (8) is formed in an inner ring on the surface of the handle (3), a trigger set (10) for driving the linkage control external member (6) and the sliding lock part (7) to operate is connected to the inside of the self-limiting groove (9) in a sliding mode, a telescopic air bag (11) for pushing the trigger set (10) outwards is fixedly connected between the trigger set (10) and the inner chamber (8), and a secondary safety device (12) for locking the trigger set (10) is rotatably connected to the right side of the surface of the handle (3);

the linkage control kit (6) comprises a first metal short column (61), the first metal short column (61) is vertically and rotatably inserted into the handle (3), the upper end and the lower end of the first metal short column (61) respectively extend into the inner cavity (8) and the lower cavity (5), a notch (62) is formed in the lower side of the surface of the trigger set (10), a tooth groove (63) is formed in the inner wall of the notch (62), and a tooth-shaped notch disc (64) meshed with the tooth groove (63) is fixedly connected to the top end of the first metal short column (61);

the inner part of the lower cavity (5) is rotatably connected with a second metal short column (66) through a wall ring (65), an elastic spiral metal wire (67) is movably sleeved on the surface of the second metal short column (66), two ends of the elastic spiral metal wire (67) are respectively clamped on the second metal short column (66) and the wall ring (65), the right end of the second metal short column (66) and the bottom end of the first metal short column (61) are fixedly connected with a first toothed notch conical disc (68) which is meshed with each other, and the left end of the second metal short column (66) is fixedly connected with a second toothed notch conical disc (69);

a first disk (610) is rotatably connected inside the lower cavity (5), a toothed ring (611) meshed with the second toothed notch conical disk (69) is fixedly connected to the surface of the first disk (610), a toothed opening (612) is formed in the outer ring of the first disk (610), a second disk (613) is rotatably connected inside the lower cavity (5), an amplifying toothed disk (614) meshed with the toothed opening (612) is convexly arranged in the middle of the surface of the second disk (613), and an annular notch (615) is formed in the outer ring of the surface of the second disk (613);

a gun sleeve (616) is movably sleeved on the surface of a gun head of the liquid transferring gun (1), an embedding opening (617) matched with the handle (3) is formed in the surface of the gun sleeve (616), a clamping groove (618) in sliding embedding with the embedding opening (617) is formed in the surface of the handle (3), and the gun sleeve (616) slides along the surface of the handle (3) through the clamping groove (618);

the outer side part of the annular notch (615) is positioned in the embedding opening (617), and the inner side wall of the embedding opening (617) is provided with a shifting transverse groove (619) which is mutually meshed with the annular notch (615);

the sliding lock part (7) comprises an inner cavity (71), the inner cavity (71) is arranged inside the upper convex seat (4) and the end seat (2) and contains the operation part of the liquid-transferring gun (1), the inner part of the inner cavity (71) is connected with a sliding core (72) in a sliding mode, the surface of the operation part of the liquid-transferring gun (1) is provided with annular grains (73), and the end face of the left side of the sliding core (72) is provided with a grain groove (74) matched with the operation part of the liquid-transferring gun (1);

an inner through groove (75) is formed in the middle of the surface of the sliding core (72), an inserting plate (76) is fixedly connected to the top of the inner cavity (71), the inserting plate (76) is located in the inner through groove (75), and an elastic spiral strip (77) is fixedly connected between the inserting plate (76) and the inner through groove (75);

the trigger set (10) comprises a main trigger (101), the main trigger (101) is connected in a self-limiting groove (9) in a sliding mode, a clamping groove (102) is formed in the main trigger (101), a safety piece (103) is connected in the clamping groove (102) in a sliding mode, and the telescopic air bag (11) is fixedly connected with the safety piece (103);

a transverse through hole (104) for communicating the inner cavity (71) with the inner bore (8) is formed in the end seat (2), an L connecting rod (105) is connected to the inside of the transverse through hole (104) in a sliding mode, the upper end of the safety disc (103) is fixedly connected with the L connecting rod (105), and the vertical portion of the left side of the L connecting rod (105) is movably inserted into the inner through groove (75);

the secondary safety device (12) comprises an arc opening (121), the arc opening (121) is formed in the right side of the surface of the handle (3) and is communicated with the inner chamber (8) and the transverse through hole (104), a pressing sheet (122) which is embedded with the arc opening (121) is rotatably connected to the inner portion of the inner chamber (8), an elastic sheet (123) which is abutted against the inner wall of the inner chamber (8) is fixedly connected to the upper end portion of the pressing sheet (122), and the top end of the pressing sheet (122) is provided with an inclined surface (124);

both sides all seted up end slot (125) around the cross bore (104) inner wall, two the inside sliding connection of end slot (125) has bayonet lock (126) with inclined plane (124) cooperatees, the downside on L connecting rod (105) surface is seted up and is blocked pin mouth (127) with bayonet lock (126) looks gomphosis.

2. The fast-fixing detection device for the chemical engineering inspection as claimed in claim 1, wherein: and a bearing is embedded at the joint of the first metal short column (61) and the handle (3).

3. The fast-fixing detection device for the chemical engineering inspection according to claim 1, characterized in that: the surface of the pressing sheet (122) is provided with anti-skid grains.

4. The use method of the fast-fixing detection device for chemical engineering inspection as claimed in claim 1, comprising the steps of:

s1, a palm penetrates through a handle (3) and is gripped, the tiger' S mouth part of the palm of a user firstly contacts a pressing sheet (122) in the process, the pressing sheet (122) is pushed to press a bent elastic sheet (123) to rotate towards an inner bore (8), at the moment, an inclined surface (124) at the top of the pressing sheet (122) releases the pushing of a clamping pin (126), so that the clamping pin (126) freely slides downwards in an end groove (125) to release the embedding with a pin mouth (127), and the L-shaped connecting rod (105) is unlocked;

s2, in the process, a user' S finger synchronously presses the trigger set (10) into the trigger set along the handle (3), the finger firstly contacts with the safety piece (103) and pushes the safety piece to retract inwards along the clamping groove (102) and compress the telescopic air bag (11), then the main trigger (101) is pushed to slide inwards along the self-limiting groove (9), the sliding main trigger (101) pulls the toothed notch disc (64) and the first metal short column (61) to rotate through the toothed groove (63) on the lower surface of the main trigger, the first metal short column (66) is continuously linked with the second metal short column (66) to rotate through the two meshed toothed notch conical discs (68), the second metal short column (66) pulls the elastic spiral metal wire (67) to store force, the second metal short column (66) pushes the toothed ring (611) and the first disc (610) to rotate through the toothed notch conical disc (69), the first disc (610) pulls the amplifying toothed disc (614) and the second disc (610) to rotate through the toothed hole (612) of the outer ring, the second disc (613) pulls the annular notch (615) clockwise, and the second disc (618) pushes the upper slide gun head (619) upwards so as to control the upper slide gun sleeve (1) to be used;

s3, when the trigger set (10) is pressed in the operation, the inward-contracted safety piece (103) synchronously pushes the L-shaped connecting rod (105) to slide rightwards along the transverse through hole (104) to unlock the sliding core (72) from the inner through groove (75), at the moment, the elastic spiral strip (77) pushes the sliding core (72) to slide rightwards by taking the inserting plate (76) as a base point to unlock the embedding of the thread groove (74) and the annular thread (73), and the operation part of the liquid transfer gun (1) is unlocked, so that a user can conveniently take liquid and transfer liquid by unlocking the operation part while gripping the handle (3), and on the contrary, when the trigger set (10) is started by the user without gripping the handle (3), the operation part of the liquid transfer gun (1) is locked, and the liquid transfer gun (1) is prevented from being mistakenly touched, collided and impacted and started;

s4, when the pipette gun (1) needs to be placed, the trigger set (10) is directly released to be pressed, the compressed telescopic air bag (11) pushes the trigger set (10) to return, the elastic spiral metal wire (67) with stored force pushes the short metal column II (66) to rotate, so that the disc II (613) rotates anticlockwise to push the gun sleeve (616) to slide downwards along the clamping groove (618) to return, the gun head of the pipette gun (1) is quickly covered, manual independent pulling and inserting of the gun head cover of the pipette gun (1) is not needed, meanwhile, the returned safety piece (103) pushes the sliding core (72) back through the L connecting rod (105) to lock the operating part of the pipette gun (1), the pipette gun (1) cannot be started at the moment, and the whole operation can be realized only by controlling the pressing of the trigger set (10);

s5, after the palm of a user is completely separated, due to the lack of pressing on the pressing sheet (122), the elastic sheet (123) pushes the pressing sheet (122) to return, and the clamping pin (126) is pushed to move upwards along the end groove (125) through the inclined surface (124) at the top of the pressing sheet until the clamping pin is embedded into the pin inlet (127) to lock the L-shaped connecting rod (105), so that secondary locking on the trigger set (10) is reversely achieved, namely under the condition that the handle (3) is not grasped to press the pressing sheet (122), all the operations cannot be started.

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