CN210893561U

CN210893561U - Water bath device for automatically filling refrigerant

Info

Publication number: CN210893561U
Application number: CN201921818748.7U
Authority: CN
Inventors: 钱建庆; 王永富; 王树申
Original assignee: Shanghai Cool Refrigeration Equipment Co ltd
Current assignee: Shanghai Cool Refrigeration Equipment Co ltd
Priority date: 2019-10-26
Filing date: 2019-10-26
Publication date: 2020-06-30
Anticipated expiration: 2029-10-26

Abstract

The utility model discloses a water bath device for automatically filling refrigerant, which relates to the technical field of air leakage detection, and adopts the technical scheme that the water bath device comprises a top plate, a first motor, a lead screw, a sliding seat and a cylinder; the sliding seat is in threaded connection with the lead screw; a guide assembly for driving the sliding seat to move along the length direction of the top plate is arranged between the sliding seat and the top plate; a water pool is arranged below the screw rod; the output end of the cylinder is fixed with a fixed plate, the bottom of the fixed plate is fixed with a plurality of guide shafts, and the peripheral surfaces of the guide shafts are vertically provided with connecting pieces in a sliding manner; two first connecting rods are hinged on the peripheral surface of the connecting piece; clamping pieces are respectively fixed at the bottoms of the two first connecting rods; the bottom end of the guide shaft is provided with a driving mechanism which respectively drives the two clamping pieces to move towards one side close to the screw rod. The utility model provides a problem whether unable rapid judgement refrigerant jar body leaks gas, reached the effect whether leak gas of short-term test refrigerant.

Description

Water bath device for automatically filling refrigerant

Technical Field

The utility model relates to a gas leakage detection technical field, more specifically the saying so, it relates to a water bath device that is used for refrigerant automatic filling dress.

Background

Currently, refrigerants are the intermediary substances in various heat engines by which energy conversion is accomplished. The refrigerant generally increases in power with a reversible phase change. The refrigerator is used to transfer heat from a low temperature to a high temperature.

In the prior art, reference may be made to the chinese utility model patent with the publication number CN207280683U, which discloses a flammable refrigerant simulated leakage test device, comprising a high-low temperature test chamber, an electronic balance arranged above the high-low temperature test chamber, a test gas bottle arranged in the high-low temperature test chamber, a control chamber and a gas concentration tester; the control box is respectively connected with the copper capillary tube and the test gas bottle. And (3) injecting refrigerant gas to dangerous points in the sample to be tested through the copper capillary, starting the test, weighing the consumption of the test gas through an electronic balance, and measuring the concentration of the refrigerant gas through a gas concentration tester.

However, the gas leakage testing device needs to input parameters of a plurality of testing devices in advance before testing, is complex to operate, cannot quickly judge whether the refrigerant tank body leaks gas, and cannot meet the requirement of quickly judging whether the refrigerant tank body leaks gas in industrial flow line production.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a water bath device that is used for refrigerant automatic filling dress, it is through setting up the holding piece with the refrigerant jar body immersion aquatic, has reached the effect whether gas leakage of short-term test refrigerant.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a water bath device for automatically filling a refrigerant comprises a top plate, a first motor arranged at the bottom of the top plate, a lead screw fixedly connected with the output end of the first motor, a sliding seat arranged at the bottom of the top plate in a sliding manner along the length direction of the top plate, and an air cylinder arranged at the bottom of the sliding seat; the sliding seat is in threaded connection with the lead screw; a guide assembly for driving the sliding seat to move along the length direction of the top plate is arranged between the sliding seat and the top plate; a water pool is arranged below the screw rod;

the output end of the cylinder is fixedly provided with a fixed plate, the bottom of the fixed plate is fixedly provided with four guide shafts, and the peripheral surfaces of the two guide shafts are provided with connecting pieces in a sliding manner along the vertical direction; two first connecting rods are hinged to the outer peripheral surface of the connecting piece; clamping pieces are respectively fixed at the bottoms of the two first connecting rods; and the bottom end of the guide shaft is provided with a driving mechanism which respectively drives the two clamping pieces to move towards one side close to the screw rod.

Through adopting above-mentioned technical scheme, the cylinder starts and promotes the fixed plate and moves down, and actuating mechanism drives two holding pieces and moves in opposite directions and contact with the refrigerant jar body, thereby the holding piece is along exerting ascending holding power to the annular lid and upwards mentioning the refrigerant jar body. After the sliding seat moves to the top of the water tank, the air cylinder pushes the fixing plate downwards again, so that the refrigerant tank body is immersed into the water tank, bubbles are conveniently observed around the refrigerant, whether the refrigerant tank body leaks air or not is judged, and the air leakage condition of the refrigerant tank body is quickly judged.

The utility model discloses further set up to: the driving mechanism comprises fixed round pieces fixed at the bottom ends of the four guide shafts, two second connecting rods respectively hinged to the outer peripheral surfaces of the fixed round pieces and a connecting piece fixed on one side, close to the fixed round pieces, of the first connecting rod; one end of the second connecting rod, which is far away from the fixed wafer, is hinged with the connecting sheet; and a moving assembly for driving the connecting piece to move downwards is arranged at the bottom of the fixing plate.

Through adopting above-mentioned technical scheme, remove the back of subassembly drive connecting piece downstream, the distance between connecting piece and the fixed disk shortens, the contained angle between messenger first connecting rod and the second connecting rod diminishes, the second connecting rod rotates the in-process downwards and drives first connecting rod and rotate to being close to fixed disk one side, the distance that connecting piece one end was kept away from to two second connecting rods shortens, be convenient for make two holding pieces remove in opposite directions, thereby be convenient for the holding piece centre gripping refrigerant jar body, further realize upwards rising the refrigerant jar body through the cylinder.

The utility model discloses further set up to: the moving assembly comprises a second motor fixed at the bottom of the fixing plate and a screw fixedly connected with the output end of the second motor; the screw rod is in threaded connection with the connecting piece; the bottom end of the screw is rotationally connected with the fixed wafer.

Through adopting above-mentioned technical scheme, the second motor drive screw rod rotates, is convenient for drive the connecting piece through the screw rod along vertical removal.

The utility model discloses further set up to: the guide assembly comprises a dovetail block fixed at the top of the sliding seat and a dovetail groove formed in the bottom of the top plate, and the dovetail block is arranged in the dovetail groove in a sliding mode along the length direction of the top plate.

Through adopting above-mentioned technical scheme, the dovetail provides the guide effect for the forked tail piece, reduces the possibility that the sliding seat deviates from the track along roof length direction in-process removal.

The utility model discloses further set up to: two groups of fixing mechanisms for fixedly connecting the two clamping pieces are arranged between the two clamping pieces, and each group of fixing mechanisms comprises a square groove formed in one clamping piece close to one side of the screw rod and a pressing piece fixed to the other clamping piece close to one side of the screw rod and used for being inserted into the square groove; a pressing piece used for pressing the pressing piece is arranged in the square groove in a vertical sliding mode; a matching assembly for driving the pressing piece to move downwards along the vertical direction is arranged between the pressing piece and the pressing piece; an elastic piece for driving the pressing piece to reset is arranged between the pressing piece and the square groove.

Through adopting above-mentioned technical scheme, the press part is to the inboard in-process that removes of slot, the press part passes through cooperation subassembly drive pressing part downstream, the press part stops, the press part presses down fixed press part under the elastic component effect, be convenient for be fixed in the slot with the press part, the holder is to the refrigerant jar body clamping process, the refrigerant jar body probably causes single holding piece downwarping to lead to the fact deformation because of the action of gravity, thereby make the gap increase between two holding pieces, through setting up fixed establishment, reduce the possibility of gap increase between two holding pieces.

The utility model discloses further set up to: by adopting the technical scheme, the elastic piece is a spring fixed at the bottom of the pressing piece, and the bottom end of the spring is fixedly connected with the bottom surface of the square groove.

By adopting the technical scheme, the spring is in a compressed state in the moving process of the pressing piece, upward elastic force is applied to the pressing piece, and the pressing piece exerts an upward pressing effect on the pressing piece; after the pressing piece leaves the slot, the pressing piece is convenient to drive the pressing chamber to reset through the spring.

The utility model discloses further set up to: by adopting the technical scheme, the matching assembly comprises two inclined planes which are respectively arranged on the opposite inner sides of the pressing piece and the pressing piece.

Through adopting above-mentioned technical scheme, when the contact of pressing part and pressing part, the pressing part supports to being close to square inslot side through the inclined plane and presses the pressing part, is convenient for drive pressing part downstream.

The utility model discloses further set up to: the pressing piece bottom surface is fixed with circular axle, circular through-hole has been seted up to square groove bottom, circular axle sets up in circular through-hole along vertical sliding.

Through adopting above-mentioned technical scheme, circular through-hole provides the guide effect for circular axle, reduces the pressing member along the vertical movement in-process possibility of deviating from the track.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the refrigerant tank body is clamped by the clamping piece and is immersed in the water pool, so that whether the refrigerant tank body leaks air or not can be judged by observing whether bubbles appear around the refrigerant, and the air leakage condition of the refrigerant tank body can be quickly judged;

2. by arranging the first connecting rod and the second connecting rod, the two clamping pieces can move oppositely by starting the second motor, so that the clamping pieces can clamp the refrigerant tank body conveniently;

3. by arranging the fixing mechanism, the possibility of increasing the gap between the two clamping pieces is reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the driving mechanism of the present invention;

fig. 3 is a cross-sectional view of the fixing mechanism of the present invention.

In the figure: 1. a top plate; 11. a first motor; 12. a lead screw; 13. a sliding seat; 14. a cylinder; 15. a pool; 2. a guide assembly; 21. a dovetail block; 22. a dovetail groove; 3. a fixing plate; 31. a guide shaft; 32. a connecting member; 321. a first hinge member; 33. a first link; 34. a clamping piece; 341. a semicircular groove; 4. a moving assembly; 41. a second motor; 42. a screw; 5. a drive mechanism; 51. fixing the wafer; 511. a second hinge member; 52. a second link; 53. connecting sheets; 6. a fixing mechanism; 61. a square groove; 62. a pressing member; 63. a pressing member; 64. a spring; 65. a circular shaft; 66. a circular through hole; 7. a mating component; 71. a bevel; 8. a tank body; 81. a top cover; 82. an annular cover rim.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): a water bath device for automatically filling refrigerants comprises a top plate 1, a first motor 11 installed at the bottom of the top plate 1, a lead screw 12 fixedly connected with the output end of the first motor 11, a sliding seat 13 arranged at the bottom of the top plate 1 in a sliding mode along the length direction of the top plate 1, and an air cylinder 14 installed at the bottom of the sliding seat 13, wherein the air cylinder is arranged on the top plate 1. The sliding seat 13 is in threaded connection with the lead screw 12. A guide assembly 2 for driving the sliding seat 13 to move along the length direction of the top plate 1 is arranged between the sliding seat 13 and the top plate 1. A water basin 15 is arranged below the screw 12. After the first motor 11 drives the screw 12 to rotate, the sliding seat 13 moves towards one side close to the water pool 15; when the sliding seat 13 moves to the upper part of the refrigerant tank or water pool 15, the screw 12 stops rotating. The guide assembly 2 comprises a dovetail block 21 fixed on the top of the sliding seat 13 and a dovetail groove 22 arranged at the bottom of the top plate 1, and the dovetail block 21 is arranged in the dovetail groove 22 in a sliding mode along the length direction of the top plate 1.

As shown in fig. 1, the output end of the cylinder 14 is fixed with a fixing plate 3, and referring to fig. 2, the bottom of the fixing plate 3 is fixed with four guide shafts 31, and the peripheral surfaces of the four guide shafts 31 are provided with connecting pieces 32 in a vertically sliding manner. The cross section of the connecting piece 32 is circular, and the peripheral surface of the connecting piece 32 is hinged with two first connecting rods 33; two first hinge parts 321 are fixed on the outer peripheral surface of the connecting part 32, the two first hinge parts 321 are respectively arranged at two sides of the connecting part 32, and the top of the first connecting rod 33 is hinged with the first hinge parts 321. The bottom parts of the two first connecting rods 33 are respectively fixed with a clamping piece 34, and the opposite inner sides of the two clamping pieces 34 are respectively provided with a semi-circular groove 341. The bottom end of the guide shaft 31 is provided with a driving mechanism 5 for driving the two holding pieces 34 to move toward the side close to the connecting piece 32. The refrigerant tank includes a tank body 8 and a tank cover detachably attached to the top of the tank body 8, and the tank cover includes a circular top cover 81 and an annular cover rim 82 fixed to the outer peripheral surface of the top cover 81. The clamping piece 34 is used for applying upward supporting force to the annular cover rim 82 from below the annular cover rim 82. The semi-circular groove 341 is used for accommodating the tank 8. After the sliding seat 13 moves above the refrigerant tank, the air cylinder 14 is started and pushes the fixing plate 3 to move downwards, the driving mechanism 5 drives the two clamping pieces 34 to move towards each other and contact with the refrigerant tank, and the clamping pieces 34 apply upward supporting force to the annular cover edge 82 so as to lift the refrigerant tank upwards. After the sliding block 13 is moved over the water bath 15, the cylinder 14 again pushes the fixed plate 3 downward, so that the refrigerant tank is immersed in the water bath 15.

As shown in fig. 2, the driving mechanism 5 includes a fixed disk 51 fixed to the bottom ends of the four guide shafts 31, two second links 52 respectively hinged to the outer peripheral surfaces of the fixed disks 51, and a connecting piece 53 fixed to the first link 33 on a side close to the fixed disk 51. The second link 52 is hinged to the connecting piece 53 at an end remote from the fixing disc 51. Two second hinge pieces 511 are fixed on the outer peripheral surface of the fixed disc 51; the end of the second link 52 remote from the connecting link 53 is hinged to the second hinge 511. The bottom of the fixed plate 3 is provided with a moving assembly 4 for driving the connecting member 32 to move downwards. After the moving assembly 4 drives the connecting piece 32 to move downwards, the distance between the connecting piece 32 and the fixed circular piece 51 is shortened, the distance between one end of the first connecting rod 33 close to the connecting piece 32 and one end of the second connecting rod 52 close to the fixed piece is shortened, so that the included angle between the first connecting rod 33 and the second connecting rod 52 is reduced, and the second connecting rod 52 drives the first connecting rod 33 to rotate towards one side close to the fixed circular piece 51 in the downward rotating process, so that the two clamping pieces 34 move towards each other. The moving assembly 4 comprises a second motor 41 fixed at the bottom of the fixed plate 3 and a screw rod 42 fixedly connected with the output end of the second motor 41; the screw 42 is threadedly coupled to the connector 32. The bottom end of the screw 42 is rotatably connected with the fixed disc 51.

As shown in fig. 3, two sets of fixing mechanisms 6 for fixedly connecting the two clamping pieces 34 are disposed between the two clamping pieces 34, and each set of fixing mechanism 6 includes a square groove 61 formed on one side of one clamping piece 34 close to the screw rod 42 and a pressing member 62 fixed to the other side of the other clamping piece 34 close to the screw rod 42 and used for being inserted into the square groove 61. A pressing piece 63 for pressing the pressing piece 62 is arranged in the square groove 61 in a sliding manner along the vertical direction. The bottom of the pressing piece 63 is fixed with a spring 64, and the bottom end of the spring 64 is fixedly connected with the bottom surface of the square groove 61. And a matching assembly 7 for driving the pressing piece 63 to move vertically and downwards is arranged between the pressing piece 62 and the pressing piece 63. In the process that the pressing piece 62 moves towards the inner side of the slot, the pressing piece 62 drives the pressing piece 63 to move downwards through the matching component 7; the spring 64 is in a compressed state during the movement of the pressing member 63, and applies an upward elastic force to the pressing member 63, and the pressing member 63 applies an upward pressing action to the pressing member 62.

As shown in fig. 3, the engaging assembly 7 includes two inclined surfaces 71 respectively opened at opposite inner sides of the pressing member 62 and the pressing member 63. When the pressing member 62 contacts the pressing member 63, the pressing member 62 presses the pressing member 63 toward the inner side of the square groove 61 through the inclined surface 71, and drives the pressing member 63 to move downward.

As shown in fig. 3, a circular shaft 65 is fixed on the bottom surface of the pressing member 63, a circular through hole 66 is opened at the bottom of the square groove 61, and the circular shaft 65 is vertically slidably disposed in the circular through hole 66. The spring 64 is fitted around the guide shaft 31. The circular through hole 66 provides a guide function for the circular shaft 65, reducing the possibility of deviation from the track during the vertical movement of the pressing member 63.

The working principle of the embodiment is as follows:

after the sliding seat 13 moves to the upper part of the refrigerant tank body, the air cylinder 14 is started and pushes the fixed plate 3 to move downwards; after the second motor 41 is started and the connecting member 32 is driven by the screw 42 to move downwards, the distance between the connecting member 32 and the fixed disc 51 is shortened, the distance between one end of the first connecting rod 33 close to the connecting member 32 and one end of the second connecting rod 52 close to the fixed member is shortened, so that the included angle between the first connecting rod 33 and the second connecting rod 52 is reduced, and the second connecting rod 52 drives the first connecting rod 33 to rotate towards one side close to the fixed disc 51 in the downward rotation process, so that the two clamping pieces 34 move towards each other. The clamping piece 34 exerts upward supporting force on the annular cover edge 82, and the air cylinder 14 pulls the fixing plate 3 upwards to lift the refrigerant tank body upwards. After the sliding block 13 is moved over the water bath 15, the cylinder 14 again pushes the fixed plate 3 downward, so that the refrigerant tank is immersed in the water bath 15.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A water bath device for automatic refrigerant charging, characterized in that: the device comprises a top plate (1), a first motor (11) arranged at the bottom of the top plate (1), a screw rod (12) fixedly connected with the output end of the first motor (11), a sliding seat (13) arranged at the bottom of the top plate (1) in a sliding manner along the length direction of the top plate (1), and an air cylinder (14) arranged at the bottom of the sliding seat (13); the sliding seat (13) is in threaded connection with the lead screw (12); a guide assembly (2) for driving the sliding seat (13) to move along the length direction of the top plate (1) is arranged between the sliding seat (13) and the top plate (1); a water pool (15) is arranged below the screw rod (12);

a fixing plate (3) is fixed at the output end of the air cylinder (14), a plurality of guide shafts (31) are fixed at the bottom of the fixing plate (3), and connecting pieces (32) are arranged on the peripheral surfaces of the guide shafts (31) in a sliding manner along the vertical direction; the peripheral surface of the connecting piece (32) is hinged with two first connecting rods (33); clamping pieces (34) are respectively fixed at the bottoms of the two first connecting rods (33); the bottom end of the guide shaft (31) is provided with a driving mechanism (5) which respectively drives the two clamping sheets (34) to move towards one side close to the connecting piece (32).

2. A water bath apparatus for automatic refrigerant charge as set forth in claim 1, wherein: the driving mechanism (5) comprises fixed round pieces (51) fixed at the bottom ends of the guide shafts (31), two second connecting rods (52) respectively hinged to the outer peripheral surfaces of the fixed round pieces (51) and a connecting piece (53) fixed on one side, close to the fixed round pieces (51), of the first connecting rod (33); one end of the second connecting rod (52) far away from the fixed circular sheet (51) is hinged with the connecting sheet (53); and a moving assembly (4) for driving the connecting piece (32) to move downwards is arranged at the bottom of the fixing plate (3).

3. A water bath apparatus for automatic refrigerant charge as set forth in claim 2, wherein: the moving assembly (4) comprises a second motor (41) fixed at the bottom of the fixing plate (3) and a screw rod (42) fixedly connected with the output end of the second motor (41); the screw rod (42) is in threaded connection with the connecting piece (32); the bottom end of the screw rod (42) is rotationally connected with the fixed circular sheet (51).

4. A water bath apparatus for automatic refrigerant charge as set forth in claim 1, wherein: the guide assembly (2) comprises a dovetail block (21) fixed to the top of the sliding seat (13) and a dovetail groove (22) formed in the bottom of the top plate (1), and the dovetail block (21) is arranged in the dovetail groove (22) in a sliding mode along the length direction of the top plate (1).

5. A water bath apparatus for automatic refrigerant charge as set forth in claim 1, wherein: two groups of fixing mechanisms (6) for fixedly connecting the two clamping sheets (34) are arranged between the two clamping sheets (34), and each group of fixing mechanisms (6) comprises a square groove (61) formed in one clamping sheet (34) close to one side of the screw rod (42) and a pressing piece (62) which is fixed to the other clamping sheet (34) close to one side of the screw rod (42) and is used for being inserted into the square groove (61); a pressing piece (63) used for pressing the pressing piece (62) is arranged in the square groove (61) in a sliding manner along the vertical direction; a matching assembly (7) for driving the pressing piece (63) to move downwards along the vertical direction is arranged between the pressing piece (62) and the pressing piece (63); an elastic piece for driving the pressing piece (63) to reset is arranged between the pressing piece (63) and the square groove (61).

6. The water bath apparatus for automatic refrigerant charging as set forth in claim 5, wherein: the elastic piece is a spring (64) fixed at the bottom of the pressing piece (63), and the bottom end of the spring (64) is fixedly connected with the bottom surface of the square groove (61).

7. The water bath apparatus for automatic refrigerant charging as set forth in claim 5, wherein: the matching component (7) comprises two inclined planes (71) which are respectively arranged on the opposite inner sides of the pressing part (62) and the pressing part (63).

8. The water bath apparatus for automatic refrigerant charging as set forth in claim 5, wherein: the bottom surface of the pressing piece (63) is fixed with a round shaft (65), the bottom of the square groove (61) is provided with a round through hole (66), and the round shaft (65) is arranged in the round through hole (66) in a sliding mode along the vertical direction.