Numerical control refrigerant filling machine for air energy production and use method of numerical control refrigerant filling machine

Abstract

The invention discloses a numerical control refrigerant filling machine for air energy production and a using method of the numerical control refrigerant filling machine, and belongs to the technical field of refrigerant filling machines. A numerical control refrigerant filling machine for air energy production comprises a filling machine body and further comprises a filling pipe, one end of the filling pipe is connected with the filling machine body, a filling gun head is arranged at the end, away from the filling machine body, of the filling pipe, and a dustproof cover is arranged on the filling gun head; the containing shell is fixedly arranged on the side wall of the filling machine body, the end, away from the filling machine body, of the filling pipe penetrates through the containing shell and extends outwards, and a winding assembly used for winding the filling pipe is arranged in the containing shell; the first pneumatic limiting piece is arranged in the containing shell and used for limiting the action of the winding assembly; the defects that when the refrigerant filling machine is used, the filling pipe is placed disorderly and even is damaged due to the fact that the filling pipe has no place to be placed are overcome, the structure of the refrigerant filling machine can achieve automatic recycling, stable and regular storage and convenient taking and placing, and the working efficiency of refrigerant filling is improved.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerant filling machines, and in particular to a numerically controlled refrigerant filling machine for air energy production and a use method thereof. Background Art

[0002] Filling machines are now used in various fields of society, and their use is increasing with the continuous development of industrial society. For example, in the refrigeration industry, the production of refrigeration equipment such as refrigerators and air conditioners has increased year by year. As the main equipment for filling refrigerant into refrigeration equipment, refrigerant filling machines play a huge role in the production of refrigeration equipment. The refrigerant filling machine is usually equipped with a supply bottle, a vacuum booster pump, a balance cylinder and other components connected to the filling pipe installed outside the cabinet, and then the filling gun head at the end of the filling pipe fills the equipment with refrigerant.

[0003] The filling gun of the existing filling machine is hung on the side wall of the filling machine, and the filling pipe is placed randomly on the side of the filling machine, which reduces the neatness and aesthetics of the filling machine. When in use, the filling gun needs to be taken out and the filling pipe needs to be dragged, and the filling pipe is easy to fall to the ground. When dragging the filling pipe, the filling pipe is easy to rub against the ground, which causes wear of the filling pipe for a long time and affects the service life of the filling pipe. At the same time, after the refrigerant filling is completed, the staff still needs to manually hang the filling gun on the side wall bracket of the filling machine, which is cumbersome to operate and reduces the work efficiency of the staff. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a numerically controlled refrigerant injection machine for air energy production and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A numerically controlled refrigerant filling machine for air energy production, comprising a filling machine body, and also comprising:

[0007] A filling pipe, one end of which is connected to the filling machine body, and one end of which is away from the filling machine body is provided with a filling gun head, and a dust cover is provided on the filling gun head;

[0008] A containing shell, wherein the containing shell is fixedly mounted on the side wall of the filling machine body, an end of the filling pipe away from the filling machine body passes through the containing shell and extends outward, and a winding assembly for winding the filling pipe is arranged in the containing shell;

[0009] A first pneumatic limiter, which is disposed in the accommodating shell and is used to limit the movement of the winding assembly; and

[0010] A lifting and supporting assembly, the lifting and supporting assembly being arranged on the side wall of the containing shell and used for lifting and supporting the filling pipe stretched out of the containing shell;

[0011] A support plate is fixedly provided on the outer side of the accommodating shell, and an end of the support plate away from the accommodating shell is connected to an abutment seat that movably abuts against the filling gun head.

[0012] Preferably, the winding assembly includes a rotating rod rotatably connected between the filling machine body and the containing shell, a coil spring is arranged between the rotating rod and the filling machine body, a reel is arranged on the rotating rod, and the filling tube is wound and connected to the reel.

[0013] Preferably, the lifting support assembly includes a side plate fixed to the outer wall of the containing shell, the side plate is rotatably connected to a screw, a sleeve is threadedly connected to the screw, a lifting rod is fixed to the outer wall of the sleeve and is slidably connected to the support plate, the end of the lifting rod away from the sleeve passes through the support plate and is connected to a lifting ring, and the filling pipe is movably connected in the lifting ring.

[0014] Preferably, a main bevel gear is fixedly provided on the rotating rod, and a secondary bevel gear meshing with the main bevel gear is provided on the screw rod.

[0015] Preferably, the lifting rod includes a sleeve fixedly connected to the sleeve, an inner rod slidably connected in the sleeve and connected to the lifting ring, and a first elastic element arranged between the sleeve and the inner rod, and a second pneumatic limiter for positioning the inner rod is arranged on the sleeve.

[0016] Preferably, the dust cover is arranged in an L shape, and a pneumatic telescopic part is arranged between the dust cover and the filling gun head. The pneumatic telescopic part has the same structure as the first pneumatic limit part and the second pneumatic limit part, and both include an outer tube, a piston slidably connected in the outer tube, a second elastic element arranged between the piston and the inner wall of the outer tube, and a movable rod connected to the side of the piston away from the second elastic element. A plurality of first positioning holes evenly distributed in a circle are opened on the rotating rod, and the movable rod of the first pneumatic limit part is inserted into the first positioning hole. The inner rod is provided with a plurality of second positioning holes evenly distributed along its axial direction, and the movable rod of the second pneumatic limit part is inserted into the second positioning hole.

[0017] Preferably, the filling pipe includes a protective cover, a refrigerant pipe arranged in the protective cover for filling refrigerant, and an air guide pipe arranged in the protective cover for conveying air, one end of the air guide pipe is connected to the rod cavity of the outer tube in the pneumatic telescopic part, and the other end of the air guide pipe passes through the protective cover and extends outward to be connected to two air branch pipes, and the two air branch pipes are respectively connected to the rodless cavity of the outer tube in the first pneumatic limit part and the second pneumatic limit part.

[0018] Preferably, a fixing ring is fixedly provided on the inner wall of the containing shell, a rubber ring is fixedly provided on the inner wall of the fixing ring, a one-way wheel rotatably connected to the inner wall of the containing shell and movably abutting against the rubber ring is provided, and the one-way wheel is coaxially arranged with the rotating rod and is mutually clamped.

[0019] Preferably, the one-way wheel includes a fixed seat fixedly connected to the rotating rod and a transmission seat rotatably connected to the outside of the fixed seat, there is friction between the transmission seat and the rubber ring, a groove is provided on the fixed seat, a clamping block is rotatably connected to the inner wall of the groove through a pin shaft, a torsion spring for driving the clamping block to reset and rotate is sleeved on the pin shaft, and clamping grooves evenly distributed on the inner wall of the transmission seat are provided, and the clamping block and the clamping grooves are clamped with each other.

[0020] The present invention also discloses a method for using a numerically controlled refrigerant filling machine for air energy production, comprising the following steps:

[0021] S1: When the filling machine body is in use, the staff holds the filling gun head and uses the filling gun head to drag the filling tube, and the filling tube is pulled out of the containing shell. The filling tube drives the rotating rod to rotate clockwise in the containing shell through the reel, and the rotating rod drives the fixed seat to rotate. The block on the outside of the fixed seat is abutted by the inner wall of the transmission seat, and the block is forced to be accommodated in the groove, and the fixed seat rotates relative to the transmission seat;

[0022] S2: When the rotating rod rotates, the main bevel gear at the end engages with the secondary bevel gear on the screw to drive, the secondary bevel gear drives the screw to rotate, and the sleeve connected with the screw thread moves upward along the screw axis. The sleeve is lifted by the lifting rod and the lifting ring to lift the filling pipe out of the containing shell;

[0023] S3: When the filling gun head has not moved to the filling position and the filling tube on the reel has been completely dragged, the staff can apply downward pressure to the filling tube through the filling gun head, so that the filling tube presses down the lifting rod through the lifting ring, and the inner rod is forced to move downward into the sleeve, and the first elastic element is compressed, thereby extending the moving distance of the filling gun head until the filling gun head moves to the filling position. The filling tube is pulled out from top to bottom and always remains in a lifted state, and the filling tube does not contact the ground;

[0024] S4: Then the staff moves the dust cover so that the dust cover no longer blocks the filling gun head, and the filling gun head docks with the filled object. The dust cover cannot move back to maintain the current position after the movement. When the dust cover moves, the pneumatic telescopic part is stretched, and the air in the outer tube of the stretched pneumatic telescopic part is introduced into the first pneumatic limiter and the second pneumatic limiter through the air guide pipe and the air distribution pipe. The movable rod of the first pneumatic limiter is inserted into the first positioning hole of the rotating rod, and the movable rod of the second pneumatic limiter is inserted into the second positioning hole of the inner rod, thereby maintaining the rotation position of the rotating rod at this time and the current length of the lifting rod after contraction. The reel will not drive the rotating rod to reset and rotate, and the first elastic element will not push the inner rod to move up, so that the filling pipe remains in the current dragged state;

[0025] S5: The refrigerant in the filling machine body is filled into the object to be filled through the filling pipe and the filling gun head. After the filling work is completed, the staff manually separates the filling gun head and the object to be filled. At this time, the return movement of the dust cover is not hindered. The dust cover moves back under the elastic force of the second elastic element of the pneumatic telescopic member, so that the air previously introduced into the first pneumatic limiter and the second pneumatic limiter can flow back. The first pneumatic limiter no longer restricts the rotating rod, and the second pneumatic limiter no longer restricts the inner rod;

[0026] S6: The rotating rod is reset and rotated under the action of the coil spring, and the rotating rod drives the reel to rotate, so that the reel is wound around the filling pipe;

[0027] When the rotating rod is reset, it rotates counterclockwise, and the block on the fixed seat outside the rotating rod is engaged with the slot on the transmission seat. The fixed seat drives the transmission seat to rotate through the block. When the transmission seat rotates, there is rotational friction with the rubber ring on the inner side of the fixed ring, which reduces the rotation speed of the transmission seat, and then reduces the winding speed of the filling pipe by the reel outside the rotating rod, so that the filling pipe is slowly and orderly wound in the containing shell until the filling gun head at the end of the filling pipe abuts against the abutment seat, completing the filling of the refrigerant by the filling machine body.

[0028] Compared with the prior art, the present invention provides a numerically controlled refrigerant filling machine for air energy production and a method of using the same, which has the following beneficial effects:

[0029] 1. The CNC refrigerant filling machine for air energy production and the method of using the same, by providing a lifting and supporting assembly, lifts the filling pipe pulled out of the containing shell, the filling pipe is pulled out from top to bottom and always remains in a lifted and supported state, the filling pipe does not contact the ground, and solves the problem that the filling pipe has nowhere to be placed when the refrigerant filling machine is in use, resulting in messy placement and even damage to the filling pipe. In addition, the winding assembly enables its structure to achieve automatic recovery, stable and regular storage, easy to take and place, and improved refrigerant filling work efficiency.

[0030] 2. The CNC refrigerant filling machine for air energy production and the method of using the same, when filling the refrigerant, the dust cover is moved so that the dust cover no longer blocks the filling gun head, the filling gun head docks with the filled object, the dust cover cannot be moved back and maintains the current position after the movement, the pneumatic telescopic part is stretched when the dust cover moves, and the air in the outer tube of the stretched pneumatic telescopic part is introduced into the first pneumatic limiter and the second pneumatic limiter through the air guide pipe and the air distribution pipe, the movable rod of the first pneumatic limiter is inserted into the first positioning hole of the rotating rod, and the second pneumatic limiter is moved to the first positioning hole of the rotating rod. The movable rod of the dynamic limit member is inserted into the second positioning hole of the inner rod, thereby maintaining the rotational position of the rotating rod at this time and the length of the lifting rod after the current contraction. The reel will not drive the rotating rod to reset and rotate, and the first elastic element will not push the inner rod to move up. The obstruction to the filling gun head is released while the filling pipe automatically maintains the current dragged state. The operation is simple and convenient, and the filling pipe is prevented from always exerting an upward pulling force on the filling gun head, making it difficult for the filling pipe to separate from the filling gun head, maintaining stability during filling, and the refrigerant filling will not shake, reducing safety risks.

[0031] 3. The CNC refrigerant filling machine for air energy production and its use method are as follows: when the rotating rod is reset and rotated counterclockwise, the clamping block on the fixed seat outside the rotating rod is clamped with the clamping groove on the transmission seat, and the fixed seat drives the transmission seat to rotate through the clamping block. When the transmission seat rotates, there is a rotational friction between the rubber ring on the inner side of the fixed ring, which reduces the rotation speed of the transmission seat, thereby reducing the winding speed of the filling pipe by the reel outside the rotating rod, so that the filling pipe is slowly and orderly wound in the containing shell, avoiding the filling pipe from winding too fast, resulting in aggravated wear of the filling pipe and the containing shell channel and deformation due to temperature rise, and effectively preventing the filling gun head that rises rapidly with the filling pipe from colliding violently with the abutment seat, thereby ensuring the service life of the filling pipe and the filling gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 For the present invention Figure 1 A partial enlarged structural diagram of the middle part;

[0034] Figure 3 It is a schematic diagram of the structure of the containing shell of the present invention;

[0035] Figure 4 is a schematic diagram of the cross-sectional structure of the containing shell of the present invention;

[0036] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure of the middle B part;

[0037] Figure 6 It is a schematic diagram of the structure of the outer part of the screw of the present invention;

[0038] Figure 7It is a schematic diagram of the structure of the filling gun head of the present invention when it is blocked;

[0039] Figure 8 It is a schematic diagram of the structure of the filling gun head of the present invention when filling;

[0040] Fig. 9 It is a schematic diagram of the cross-sectional structure of the filling pipe of the present invention;

[0041] Fig.10 It is a schematic cross-sectional structure diagram of the one-way gear and the fixing ring of the present invention;

[0042] Fig.11 For the present invention Fig.10 Schematic diagram of the partial enlarged structure of part C in the middle.

[0043] In the figure: 1, filling machine body; 2, filling pipe; 201, protective cover; 202, refrigerant pipe; 203, air guide pipe; 2031, air distribution pipe; 3, filling gun head; 4, dust cover; 5, containing shell; 6, first pneumatic limiter; 7, support plate; 8, abutment seat; 9, rotating rod; 901, coil spring; 902, reel; 903, main bevel gear; 904, first positioning hole; 10, side plate; 11, screw rod; 111, sleeve; 112, lifting rod; 1121, sleeve Tube; 1122, inner rod; 1123, first elastic element; 113, lifting ring; 114, secondary bevel gear; 12, second pneumatic limiter; 13, pneumatic telescopic member; 14, outer tube; 141, piston; 142, second elastic element; 143, movable rod; 15, second positioning hole; 16, fixing ring; 161, rubber ring; 17, one-way wheel; 171, fixing seat; 1711, groove; 1712, block; 172, transmission seat; 1721, slot. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Example 1: Reference Figure 1-8 , a numerically controlled refrigerant filling machine for air energy production, comprising a filling machine body 1, and also comprising:

[0047] A filling pipe 2, one end of which is connected to the filling machine body 1, and a filling gun head 3 is provided at the end of the filling pipe 2 away from the filling machine body 1, and a dust cover 4 is provided on the filling gun head 3;

[0048] The accommodating shell 5 is fixedly mounted on the side wall of the filling machine body 1. One end of the filling pipe 2 away from the filling machine body 1 passes through the accommodating shell 5 and extends outward. A winding assembly for winding the filling pipe 2 is arranged in the accommodating shell 5.

[0049] A first pneumatic limiter 6, which is disposed in the accommodating shell 5 and is used to limit the movement of the winding assembly; and

[0050] A lifting and supporting assembly, which is arranged on the side wall of the containing shell 5 and is used to lift the filling pipe 2 stretched out of the containing shell 5;

[0051] A support plate 7 is fixedly disposed on the outer side of the accommodating shell 5 , and an end of the support plate 7 away from the accommodating shell 5 is connected to an abutment seat 8 that movably abuts against the filling gun head 3 .

[0052] Furthermore, the winding assembly includes a rotating rod 9 rotatably connected between the filling machine body 1 and the containing shell 5 , a coil spring 901 is provided between the rotating rod 9 and the filling machine body 1 , a reel 902 is provided on the rotating rod 9 , and the filling tube 2 is wound and connected on the reel 902 .

[0053] Specifically, when the filling machine body 1 is not in use, the dust cover 4 shields the port of the filling gun head 3 to prevent impurities from being present inside the filling gun head 3 when it is in use, thereby affecting the filling quality;

[0054] During use, the staff holds the filling gun head 3 and uses the filling gun head 3 to drag the filling tube 2, and the filling tube 2 is pulled out of the containing shell 5. The filling tube 2 drives the rotating rod 9 to rotate clockwise in the containing shell 5 through the reel 902, and by setting a lifting and supporting assembly, the filling tube 2 pulled out of the containing shell 5 is lifted and supported. The filling tube 2 is pulled out from top to bottom and always remains in a lifted and supported state. The filling tube 2 does not contact the ground, which solves the problem that the filling tube 2 has nowhere to be placed when the refrigerant filling machine is in use, resulting in messy placement and even damage to the filling tube 2. The winding spring 901 of the winding assembly enables its structure to achieve automatic recovery and stable and regular storage, which is convenient for taking and placing, thereby improving the efficiency of refrigerant filling.

[0055] Example 2: Reference Figure 1-6, a CNC refrigerant filling machine for air energy production, based on embodiment 1, further, the lifting and supporting assembly includes a side plate 10 fixedly mounted on the outer wall of the containing shell 5, the side plate 10 is rotatably connected to a screw 11, the screw 11 is threadedly connected to a sleeve 111, the outer wall of the sleeve 111 is fixedly provided with a lifting rod 112 slidably connected to the support plate 7, the end of the lifting rod 112 away from the sleeve 111 passes through the support plate 7 and is connected to a lifting ring 113, and the filling pipe 2 is movably connected in the lifting ring 113.

[0056] Furthermore, a main bevel gear 903 is fixedly provided on the rotating rod 9 , and a secondary bevel gear 114 meshing with the main bevel gear 903 is provided on the screw rod 11 .

[0057] Specifically, the filling pipe 2 is dragged by the filling gun head 3, and the filling pipe 2 is pulled out of the accommodating shell 5. The filling pipe 2 drives the rotating rod 9 to rotate clockwise in the accommodating shell 5 through the reel 902. When the rotating rod 9 rotates, the main bevel gear 903 at the end engages with the secondary bevel gear 114 on the screw 11 for transmission, and the secondary bevel gear 114 drives the screw 11 to rotate, and the sleeve 111 threadedly connected to the screw 11 moves upward along the axial direction of the screw 11, and the sleeve 111 lifts the filling pipe 2 moved out of the accommodating shell 5 through the lifting rod 112 and the lifting ring 113. The filling pipe 2 is pulled out from top to bottom and always remains in a lifted state. The filling pipe 2 will not contact the ground, which solves the problem that the filling pipe 2 has nowhere to be placed when the refrigerant filling machine is in use, resulting in messy placement and even damage to the filling pipe 2. When the filling pipe 2 shrinks back into the accommodating shell 5, the sleeve 111 drives the lifting rod 112 to move down and reset, thereby reducing the storage and transportation space occupied by the filling machine body 1.

[0058] Example 3: Reference Figure 1 , Figure 4 and Figure 6 , a CNC refrigerant filling machine for air energy production, based on Example 2, further, the lifting rod 112 includes a sleeve 1121 fixedly connected to the sleeve 111, an inner rod 1122 slidably connected in the sleeve 1121 and connected to the lifting ring 113, and a first elastic element 1123 arranged between the sleeve 1121 and the inner rod 1122, and a second pneumatic limiter 12 for positioning the inner rod 1122 is arranged on the sleeve 1121.

[0059] Specifically, when the filling gun head 3 has not moved to the filling position and the filling tube 2 on the reel 902 has been completely dragged, the staff can apply downward pressure to the filling tube 2 through the filling gun head 3, so that the filling tube 2 presses down the lifting rod 112 through the lifting ring 113, and the inner rod 1122 is forced to move downward into the sleeve 1121, and the first elastic element 1123 is compressed. The first elastic element 1123 is preferably a spring, thereby extending the moving distance of the filling gun head 3 until the filling gun head 3 moves to the filling position, and the filling tube 2 is moved from the upper The filling pipe 2 will not come into contact with the ground when it is pulled out and always kept in the lifted state; the second pneumatic limiter 12 can limit the length of the lifting rod 112 after the contraction, so as to prevent the elastic force of the compressed first elastic element 1123 from pushing the inner rod 1122 upward, so that the inner rod 1122 is always subject to an upward pulling force, thereby preventing the filling pipe 2 from always exerting an upward pulling force on the filling gun head 3, making it difficult for the filling pipe 2 to separate from the filling gun head 3, maintaining stability during filling, and preventing the refrigerant from shaking, thereby reducing safety risks.

[0060] Example 4: Reference Figure 1-9 , a CNC refrigerant filling machine for air energy production, based on Example 3, further, the dust cover 4 is set to an L shape, and a pneumatic telescopic member 13 is arranged between the dust cover 4 and the filling gun head 3, the pneumatic telescopic member 13 has the same structure as the first pneumatic limiter 6 and the second pneumatic limiter 12, both of which include an outer tube 14, a piston 141 slidably connected in the outer tube 14, a second elastic element 142 arranged between the piston 141 and the inner wall of the outer tube 14, and an active rod 143 connected to the side of the piston 141 away from the second elastic element 142 (the second elastic element 142 is preferably a spring), a plurality of first positioning holes 904 uniformly distributed in a circumference are opened on the rotating rod 9, the active rod 143 of the first pneumatic limiter 6 is inserted in the first positioning hole 904, the inner rod 1122 is opened along its axial direction with a plurality of second positioning holes 15 equally distributed, and the active rod 143 of the second pneumatic limiter 12 is inserted in the second positioning hole 15.

[0061] Furthermore, the filling pipe 2 includes a protective cover 201, a refrigerant pipe 202 arranged in the protective cover 201 for filling refrigerant, and an air guide pipe 203 arranged in the protective cover 201 for conveying air. One end of the air guide pipe 203 is connected to the rod cavity of the outer tube 14 in the pneumatic telescopic member 13, and the other end of the air guide pipe 203 passes through the protective cover 201 and extends outward to be connected to two branch air pipes 2031. The two branch air pipes 2031 are respectively connected to the rodless cavity of the outer tube 14 in the first pneumatic limit member 6 and the second pneumatic limit member 12.

[0062] Specifically, after the filling gun head 3 moves to the filling position, the staff member moves the dust cover 4 so that the dust cover 4 no longer blocks the filling gun head 3, and the filling gun head 3 is docked with the object to be filled. The dust cover 4 cannot move back to maintain the current position after the movement. When the dust cover 4 moves, the pneumatic telescopic member 13 is stretched, and the air in the outer tube 14 of the stretched pneumatic telescopic member 13 is introduced into the first pneumatic limiter 6 and the second pneumatic limiter 12 through the air guide pipe 203 and the air distribution pipe 2031. The movable rod 143 of the first pneumatic limiter 6 is inserted into the first positioning hole 904 of the rotating rod 9, and the second pneumatic limiter 12 is moved. The movable rod 143 of the limit member 12 is inserted into the second positioning hole 15 of the inner rod 1122, thereby maintaining the rotation position of the rotating rod 9 at this time and the current length of the lifting rod 112 after contraction. The reel 902 will not drive the rotating rod 9 to reset and rotate, and the first elastic element 1123 will not push the inner rod 1122 to move upward, thereby keeping the filling pipe 2 in the current dragged state. The operation is simple and convenient, and the filling pipe 2 is prevented from always exerting an upward pulling force on the filling gun head 3, so that the filling pipe 2 and the filling gun head 3 are not easy to separate, and stability is maintained during filling, and the refrigerant filling will not shake, thereby reducing safety risks.

[0063] Example 5: Reference Figure 4 , Figure 5 , Fig.10 and Fig.11 A CNC refrigerant filling machine for air energy production, based on Example 4, further, a fixing ring 16 is fixedly provided on the inner wall of the containing shell 5, a rubber ring 161 is fixedly provided on the inner wall of the fixing ring 16, and a one-way wheel 17 movably abutting against the rubber ring 161 is rotatably connected to the inner wall of the containing shell 5, and the one-way wheel 17 is coaxially arranged with the rotating rod 9 and is mutually clamped.

[0064] Furthermore, the one-way wheel 17 includes a fixed seat 171 fixedly connected to the rotating rod 9 and a transmission seat 172 rotatably connected to the outside of the fixed seat 171. There is friction between the transmission seat 172 and the rubber ring 161. A groove 1711 is provided on the fixed seat 171. A block 1712 is rotatably connected to the inner wall of the groove 1711 through a pin shaft. A torsion spring for driving the block 1712 to reset and rotate is sleeved on the pin shaft. The inner wall of the transmission seat 172 is provided with circumferentially evenly distributed grooves 1721, and the block 1712 and the groove 1721 are engaged with each other.

[0065] Specifically, the refrigerant in the filling machine body 1 is filled into the object to be filled through the filling pipe 2 and the filling gun head 3. After the filling work is completed, the staff manually separates the filling gun head 3 and the object to be filled. At this time, the return movement of the dust cover 4 is not hindered, and the dust cover 4 moves back under the elastic force of the second elastic element 142 of the pneumatic telescopic part 13, so that the air previously introduced into the first pneumatic limiter 6 and the second pneumatic limiter 12 can flow back, and the first pneumatic limiter 6 no longer restricts the rotating rod 9, and the second pneumatic limiter 12 no longer restricts the inner rod 1122. The rotating rod 9 is reset and rotated under the action of the winding spring 901, and the rotating rod 9 drives the reel 902 to rotate, so that the reel 902 winds up the filling pipe 2. The rotating rod 9 rotates counterclockwise when it resets and rotates, and the block 1712 on the outer fixed seat 171 of the rotating rod 9 is connected with the transmission seat The card slot 1721 on 172 is engaged, and the fixed seat 171 drives the transmission seat 172 to rotate through the card block 1712. When the transmission seat 172 rotates, there is a rotational friction between it and the rubber ring 161 on the inner side of the fixed ring 16, which reduces the rotation speed of the transmission seat 172, reduces the rotation speed of the transmission seat 172, and then reduces the winding speed of the outer drum 902 of the rotating rod 9 on the filling pipe 2, so that the filling pipe 2 is slowly and orderly wound in the containing shell 5 until the filling gun head 3 at the end of the filling pipe 2 abuts against the abutment seat 8, completing the filling of the refrigerant by the filling machine body 1, which can avoid the filling pipe 2 from winding too fast, resulting in aggravated wear of the filling pipe 2 and the containing shell 5 channels and deformation due to temperature rise, and effectively prevent the filling gun head 3 that rises rapidly with the filling pipe 2 from colliding violently with the abutment seat 8, thereby ensuring the service life of the filling pipe 2 and the filling gun head 3.

[0066] The present invention also discloses a method for using a numerically controlled refrigerant filling machine for air energy production, comprising the following steps:

[0067] S1: When the filling machine body 1 is in use, the staff holds the filling gun head 3 and uses the filling gun head 3 to drag the filling tube 2, and the filling tube 2 is pulled out of the accommodating shell 5. The filling tube 2 drives the rotating rod 9 to rotate clockwise in the accommodating shell 5 through the reel 902, and the rotating rod 9 drives the fixed seat 171 to rotate. The block 1712 on the outside of the fixed seat 171 is abutted by the inner wall of the transmission seat 172. The block 1712 is forced to be accommodated in the groove 1711, and the fixed seat 171 rotates relative to the transmission seat 172.

[0068] S2: When the rotating rod 9 rotates, the main bevel gear 903 at the end engages with the secondary bevel gear 114 on the screw 11 for transmission, and the secondary bevel gear 114 drives the screw 11 to rotate, and the sleeve 111 threadedly connected to the screw 11 moves upward along the axial direction of the screw 11, and the sleeve 111 lifts the filling pipe 2 moved out of the containing shell 5 through the lifting rod 112 and the lifting ring 113;

[0069] S3: When the filling gun head 3 has not moved to the filling position and the filling tube 2 on the reel 902 has been completely dragged, the staff can apply downward pressure to the filling tube 2 through the filling gun head 3, so that the filling tube 2 presses down the lifting rod 112 through the lifting ring 113, and the inner rod 1122 is forced to move downward into the sleeve 1121, and the first elastic element 1123 is compressed, thereby extending the moving distance of the filling gun head 3 until the filling gun head 3 moves to the filling position, and the filling tube 2 is pulled out from top to bottom and always keeps in a lifted state, and the filling tube 2 does not contact the ground;

[0070] S4: Then the staff member moves the dust cover 4 so that the dust cover 4 no longer blocks the filling gun head 3, and the filling gun head 3 is docked with the filled object. The dust cover 4 cannot move back to maintain the current position after moving. When the dust cover 4 moves, the pneumatic telescopic member 13 is stretched, and the air in the outer tube 14 of the stretched pneumatic telescopic member 13 is introduced into the first pneumatic limit member 6 and the second pneumatic limit member 12 through the air guide pipe 203 and the air distribution pipe 2031. The movable rod 143 of the first pneumatic limit member 6 is inserted into the first positioning hole 904 of the rotating rod 9, and the movable rod 143 of the second pneumatic limit member 12 is inserted into the second positioning hole 15 of the inner rod 1122, thereby maintaining the rotation position of the rotating rod 9 at this time and the current retracted length of the lifting rod 112, the reel 902 will not drive the rotating rod 9 to reset and rotate, and the first elastic element 1123 will not push the inner rod 1122 to move up, thereby keeping the filling pipe 2 in the current dragged state;

[0071] S5: The refrigerant in the filling machine body 1 is filled into the object to be filled through the filling pipe 2 and the filling gun head 3. After the filling work is completed, the staff manually separates the filling gun head 3 and the object to be filled. At this time, the return movement of the dust cover 4 is not hindered. The dust cover 4 moves back under the elastic force of the second elastic element 142 of the pneumatic telescopic member 13, so that the air previously introduced into the first pneumatic limiter 6 and the second pneumatic limiter 12 can flow back, and the first pneumatic limiter 6 no longer restricts the rotating rod 9, and the second pneumatic limiter 12 no longer restricts the inner rod 1122;

[0072] S6: The rotating rod 9 is reset and rotated under the action of the coil spring 901, and the rotating rod 9 drives the reel 902 to rotate, so that the reel 902 reels and wraps around the filling pipe 2;

[0073] When the rotating rod 9 is reset, it rotates counterclockwise, and the block 1712 on the fixed seat 171 outside the rotating rod 9 is engaged with the groove 1721 on the transmission seat 172. The fixed seat 171 drives the transmission seat 172 to rotate through the block 1712. When the transmission seat 172 rotates, there is a rotational friction between it and the rubber ring 161 on the inner side of the fixed ring 16, which reduces the rotation speed of the transmission seat 172, and then reduces the winding speed of the filling tube 2 by the outer reel 902 of the rotating rod 9, so that the filling tube 2 is slowly and orderly wound in the accommodating shell 5 until the filling gun head 3 at the end of the filling tube 2 abuts against the abutment seat 8, completing the filling of the refrigerant by the filling machine body 1.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A numerically controlled refrigerant filling machine for air energy production, comprising a filling machine body (1), characterized in that: Also includes: A filling pipe (2), one end of the filling pipe (2) being connected to the filling machine body (1), and an end of the filling pipe (2) away from the filling machine body (1) being provided with a filling gun head (3), and a dust cover (4) being provided on the filling gun head (3); A containing shell (5), the containing shell (5) being fixedly mounted on a side wall of the filling machine body (1), the end of the filling pipe (2) away from the filling machine body (1) passing through the containing shell (5) and extending outwards, and a winding assembly for winding up the filling pipe (2) being arranged in the containing shell (5); A first pneumatic limiter (6), which is arranged in the accommodating shell (5) and is used to limit the movement of the winding assembly; as well as A lifting and supporting assembly, the lifting and supporting assembly being arranged on a side wall of the containing shell (5) and being used for lifting and supporting the filling pipe (2) that is stretched out of the containing shell (5); A support plate (7) is fixedly provided on the outside of the accommodating shell (5), and one end of the support plate (7) away from the accommodating shell (5) is connected to an abutment seat (8) that movably abuts against the filling gun head (3).

2. A CNC refrigerant filling machine for air energy production according to claim 1, characterized in that: The winding assembly comprises a rotating rod (9) rotatably connected between the filling machine body (1) and the containing shell (5), a coil spring (901) is arranged between the rotating rod (9) and the filling machine body (1), a reel (902) is arranged on the rotating rod (9), and the filling pipe (2) is wound and connected to the reel (902).

3. A CNC refrigerant filling machine for air energy production according to claim 2, characterized in that: The lifting and supporting assembly comprises a side plate (10) fixedly mounted on the outer wall of the containing shell (5), a screw rod (11) being rotatably connected to the side plate (10), a sleeve (111) being threadedly connected to the screw rod (11), a lifting rod (112) being fixedly mounted on the outer wall of the sleeve (111) and being slidably connected to the support plate (7), an end of the lifting rod (112) away from the sleeve (111) passing through the support plate (7) and being connected to a lifting ring (113), and the filling pipe (2) being movably connected in the lifting ring (113).

4. A CNC refrigerant filling machine for air energy production according to claim 3, characterized in that: The rotating rod (9) is fixedly provided with a main bevel gear (903), and the screw rod (11) is provided with a secondary bevel gear (114) meshing with the main bevel gear (903).

5. A CNC refrigerant filling machine for air energy production according to claim 4, characterized in that: The lifting rod (112) comprises a sleeve (1121) fixedly connected to the sleeve (111), an inner rod (1122) slidably connected in the sleeve (1121) and connected to the lifting ring (113), and a first elastic element (1123) arranged between the sleeve (1121) and the inner rod (1122); and a second pneumatic limiter (12) for positioning the inner rod (1122) is arranged on the sleeve (1121).

6. A CNC refrigerant filling machine for air energy production according to claim 5, characterized in that: The dust cover (4) is arranged in an L shape, and a pneumatic telescopic member (13) is arranged between the dust cover (4) and the filling gun head (3). The pneumatic telescopic member (13) has the same structure as the first pneumatic stop member (6) and the second pneumatic stop member (12), and comprises an outer tube (14), a piston (141) slidably connected in the outer tube (14), a second elastic member (142) arranged between the piston (141) and the inner wall of the outer tube (14), and a second elastic member (142) disposed away from the piston (141). A movable rod (143) connected to one side of the elastic element (142), the rotating rod (9) is provided with a plurality of first positioning holes (904) evenly distributed in a circumference, the movable rod (143) of the first pneumatic limiting member (6) is inserted into the first positioning hole (904), the inner rod (1122) is provided with a plurality of second positioning holes (15) evenly distributed along its axial direction, and the movable rod (143) of the second pneumatic limiting member (12) is inserted into the second positioning hole (15).

7. A CNC refrigerant filling machine for air energy production according to claim 6, characterized in that: The filling pipe (2) comprises a protective sleeve (201), a refrigerant pipe (202) arranged in the protective sleeve (201) for filling refrigerant, and an air guide pipe (203) arranged in the protective sleeve (201) for conveying air, one end of the air guide pipe (203) is connected to the rod cavity of the outer tube (14) in the pneumatic telescopic member (13), and the other end of the air guide pipe (203) passes through the protective sleeve (201) and extends outward to be connected to two air branch pipes (2031), and the two air branch pipes (2031) are respectively connected to the rodless cavity of the outer tube (14) in the first pneumatic limit member (6) and the second pneumatic limit member (12).

8. A numerically controlled refrigerant filling machine for air energy production according to claim 7, characterized in that: A fixing ring (16) is fixedly provided on the inner wall of the containing shell (5), a rubber ring (161) is fixedly provided on the inner wall of the fixing ring (16), a one-way wheel (17) rotatably connected to the inner wall of the containing shell (5) and movably abutting against the rubber ring (161), and the one-way wheel (17) and the rotating rod (9) are coaxially arranged and mutually clamped.

9. A CNC refrigerant filling machine for air energy production according to claim 8, characterized in that: The one-way wheel (17) comprises a fixed seat (171) fixedly connected to the rotating rod (9) and a transmission seat (172) rotatably connected to the outside of the fixed seat (171); there is friction between the transmission seat (172) and the rubber ring (161); a groove (1711) is provided on the fixed seat (171); a clamping block (1712) is rotatably connected to the inner wall of the groove (1711) via a pin shaft; a torsion spring for driving the clamping block (1712) to reset and rotate is sleeved on the pin shaft; and clamping grooves (1721) evenly distributed in a circumference are provided on the inner wall of the transmission seat (172); the clamping block (1712) and the clamping grooves (1721) are mutually clamped.

10. A method for using the CNC refrigerant filling machine for air energy production according to claim 9, characterized in that: The following steps are involved: S1: When the filling machine body (1) is in use, the staff holds the filling gun head (3) and uses the filling gun head (3) to drag the filling tube (2), so that the filling tube (2) is pulled out of the accommodating shell (5), and the filling tube (2) drives the rotating rod (9) to rotate clockwise in the accommodating shell (5) through the reel (902), and the rotating rod (9) drives the fixed seat (171) to rotate, and the clamping block (1712) on the outer side of the fixed seat (171) is abutted by the inner wall of the transmission seat (172), and the clamping block (1712) is forced to be accommodated in the groove (1711), and the fixed seat (171) rotates relative to the transmission seat (172); S2: When the rotating rod (9) rotates, the main bevel gear (903) at the end engages with the secondary bevel gear (114) on the screw rod (11) for transmission, the secondary bevel gear (114) drives the screw rod (11) to rotate, and the sleeve (111) threadedly connected to the screw rod (11) moves upward along the axial direction of the screw rod (11), and the sleeve (111) lifts the filling pipe (2) moved out of the containing shell (5) through the lifting rod (112) and the lifting ring (113); S3: When the filling gun head (3) has not moved to the filling position and the filling pipe (2) on the reel (902) has been completely dragged, the staff can apply downward pressure to the filling pipe (2) through the filling gun head (3), so that the filling pipe (2) presses down the lifting rod (112) through the lifting ring (113), and the inner rod (1122) is forced to move downward into the sleeve (1121), and the first elastic element (1123) is compressed, thereby extending the moving distance of the filling gun head (3) until the filling gun head (3) moves to the filling position, and the filling pipe (2) is pulled out from top to bottom and always remains in a lifted state, and the filling pipe (2) does not contact the ground; S4: The staff then moves the dust cover (4) so ​​that the dust cover (4) no longer blocks the filling gun head (3), and the filling gun head (3) docks with the object to be filled. The dust cover (4) cannot be moved back and maintains the current position after the movement. When the dust cover (4) moves, the pneumatic telescopic member (13) is stretched. The air in the outer tube (14) of the stretched pneumatic telescopic member (13) is introduced into the first pneumatic limit member (6) and the second pneumatic limit member (12) through the air guide tube (203) and the air distribution tube (2031). The first pneumatic limit member (6) is The movable rod (143) is inserted into the first positioning hole (904) of the rotating rod (9), and the movable rod (143) of the second pneumatic stopper (12) is inserted into the second positioning hole (15) of the inner rod (1122), thereby maintaining the current rotational position of the rotating rod (9) and the current retracted length of the lifting rod (112), the reel (902) will not drive the rotating rod (9) to reset and rotate, and the first elastic element (1123) will not push the inner rod (1122) to move upward, thereby keeping the filling pipe (2) in the current dragged state; S5: The refrigerant in the filling machine body (1) is filled into the object to be filled through the filling pipe (2) and the filling gun head (3). After the filling work is completed, the staff manually separates the filling gun head (3) and the object to be filled. At this time, the return movement of the dust cover (4) is not hindered. The dust cover (4) moves back under the elastic force of the second elastic element (142) of the pneumatic telescopic member (13), so that the air previously introduced into the first pneumatic limit member (6) and the second pneumatic limit member (12) can flow back. The first pneumatic limit member (6) no longer restricts the rotating rod (9), and the second pneumatic limit member (12) no longer restricts the inner rod (1122); S6: The rotating rod (9) is reset and rotated under the action of the coil spring (901), and the rotating rod (9) drives the reel (902) to rotate, so that the reel (902) is wound around the filling pipe (2); When the rotating rod (9) is reset, it rotates counterclockwise, and the block (1712) on the fixed seat (171) outside the rotating rod (9) is engaged with the slot (1721) on the transmission seat (172). The fixed seat (171) drives the transmission seat (172) to rotate through the block (1712). When the transmission seat (172) rotates, there is a rotational friction between it and the rubber ring (161) inside the fixed ring (16), which reduces the rotation speed of the transmission seat (172), thereby reducing the winding speed of the filling tube (2) by the outer reel (902) of the rotating rod (9), so that the filling tube (2) is slowly and orderly wound in the containing shell (5) until the filling gun head (3) at the end of the filling tube (2) abuts against the abutment seat (8), completing the filling of the refrigerant by the filling machine body (1).

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