Refrigerant filling equipment

Abstract

The refrigerant filling equipment comprises a machining table, supporting legs are arranged at the bottom of the machining table, a mounting groove, a mounting frame, a conveying belt, a limiting piece, a containing groove and a limiting module are formed in the middle of the top end of the machining table in the left-right direction, vertical rods are arranged at the corners of the top of the machining table correspondingly, and a top plate is jointly arranged at the tops of the four vertical rods. And a movable filling module and an ejection module are arranged on the top plate. According to the refrigerant filling equipment, the basic requirement for filling a plurality of tanks with refrigerants can be met, and a user can specially pause for a long time between every two times of filling processing so as to discharge and feed the tanks, so that the working pause time of a filling structure is shortened, and the working efficiency of the filling structure is improved. And therefore, the overall efficiency of filling processing of the refrigerant is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigerant processing, and in particular relates to a refrigerant filling device. Background Art

[0002] In cryogenic engineering and cryogenic physics experiments, the easiest way to lower the device or sample to the required low temperature is to immerse them in a low-boiling-point liquid to reach the low temperature of the boiling point. This low-boiling-point liquid is called a refrigerant.

[0003] In the process of filling the refrigerant into the tank body, a filling device is required, that is, the filling nozzle of the filling device presses down the valve on the valve nozzle of the tank body, so that the valve of the valve nozzle is pressed open, and then a certain amount of refrigerant is poured into the tank body through the filling nozzle and the valve nozzle, and then the downward pressure on the valve nozzle of the tank body is released, so that the valve is closed after the pressure is released, thereby completing one-time filling of the refrigerant.

[0004] Although the existing refrigerant filling equipment can meet the basic needs of filling refrigerant into tanks, for small and micro enterprises, the low-cost filling equipment used requires the user to manually move an empty can to the bottom of the filling structure each time, and after adding a sufficient amount of refrigerant into the bottle, the filled tank needs to be transferred from under the filling structure and a new empty can is placed under the filling structure before the filling structure can continue to fill the refrigerant. That is, between each two filling processes, the user needs to suspend the filling structure for a long time to specifically unload and load the tanks, which is not only troublesome but also affects the overall efficiency of filling refrigerant into multiple tanks. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies of the prior art and provides a refrigerant filling device, which can not only meet the basic demand of filling refrigerant into multiple tanks, but also enable the user to pause for a longer time between each filling process to unload and load the tanks, thereby reducing the length of time that the filling structure is suspended, thereby increasing the overall efficiency of the refrigerant filling process.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a refrigerant filling equipment, including a processing table, a supporting leg is arranged at the bottom of the processing table, and an installation groove is opened in the middle of the top of the processing table along the left and right directions, and a mounting frame is arranged in the mounting groove along the left and right directions through a lifting module, and a conveyor belt running along the left and right directions and used for conveying multiple placement plates together is arranged in the mounting frame, the width of the placement plate in the front and rear directions is greater than the width of the conveyor belt in the front and rear directions, and the conveyor belt is also provided with a plurality of limiting plates for limiting the position of the mounting plate in the left and right directions, and a plurality of placement grooves for clamping and placing the tank body are respectively arranged on the plurality of placement plates, and a limiting module for limiting the placement plate placed on the conveyor belt is also arranged on the top of the processing table, vertical rods are respectively arranged at the top corners of the processing table, and a top plate is jointly arranged on the tops of the four vertical rods, and a mobile filling module is arranged on the top plate, and a top material module is also arranged on the top of the processing table, which is located below the mobile filling module and is used to lift the corresponding placement plate from the conveyor belt.

[0007] As a further improvement of the present invention, the mobile filling module includes a first linear slide respectively arranged at the left and right sides of the bottom of the top plate along the front-to-back direction, a second linear slide running along the left-right direction is commonly arranged at the bottom of the slide seats of the two first linear slides, a first telescopic push rod is vertically arranged at the bottom of the slide seat of the second linear slide, a filling pipe is arranged at the lower end of the output shaft of the first telescopic push rod, a filling nozzle capable of pressing open the valve on the top of the tank body is arranged at the bottom of the filling pipe, a first control valve is arranged on the filling pipe, and a feeding unit for conveying refrigerant to the filling pipe is arranged on the top of the top plate.

[0008] As a further improvement of the present invention, the feeding unit includes a refrigerant storage tank arranged on the top of the top plate, a discharge pipe wound below the top plate is arranged at the bottom of the refrigerant storage tank, a pump body and a second control valve are arranged on the discharge pipe, and a material guiding hose is arranged between the lower end of the discharge pipe and the side end of the filling pipe.

[0009] As a further improvement of the present invention, a transverse plate is further provided at the side end of the filling tube, a first guide insert is further provided on the transverse plate, and a first guide insert rod which is plugged and fixed with the first guide insert is further provided at the bottom of the slide seat of the first linear slide.

[0010] As a further improvement of the present invention, the lifting module includes a plurality of second telescopic push rods vertically arranged on the top of the processing table and located in the mounting groove, and the upper ends of the output shafts of the plurality of second telescopic push rods corresponding to the same mounting groove are connected to the bottom of the corresponding mounting frame.

[0011] As a further improvement of the present invention, the bottoms of the two mounting frames are respectively provided with second guide inserts, and the top of the processing table is also provided with a second guide insert rod which is plugged and fixed with the second guide insert.

[0012] As a further improvement of the present invention, the limiting module includes vertical plates respectively arranged on the front and rear sides of the top of the processing table and located on the outside of the conveyor belt, the outer ends of the two vertical plates are respectively laterally provided with multiple third telescopic push rods whose output shafts extend to the inner sides of the vertical plates, and the inner ends of the output shafts of the multiple third telescopic push rods on the front side and the inner ends of the output shafts of the multiple third telescopic push rods on the rear side are respectively provided with limiting plates adapted to the corresponding conveyor belts.

[0013] As a further improvement of the present invention, the inner ends of the two limit plates are respectively provided with third guide inserts laterally along the front-rear direction, and the inner walls of the two vertical plates are respectively provided with third guide insert rods plugged and fixed with the corresponding third guide inserts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, the user can place multiple cans into the placement grooves in sequence, and then place the placement plate containing the cans onto the conveyor belt and transport them from left to right. When a placement plate is transported to the bottom of the filling module, the conveyor belt can be suspended, so that the placement plate and the multiple cans stop under the filling module. Then, the conveyor belt can be moved downward a certain distance through the lifting module, so that the placement plate is separated from the conveyor belt, and the front and rear side ends of the placement plate are in contact with the top of the processing table. Then, the multiple cans on the placement plate below can be filled with refrigerant through the mobile filling module, and then the conveyor belt can be reset upward, the multiple placement plates can be lifted up again, and the placement plates and cans can continue to be transported.

[0016] Secondly, the refrigerant can be transported to the filling tube through the refrigerant storage tank, the discharge pipe, the liquid guiding hose, the second control valve and the pump body; the user can place multiple tanks on the conveyor belt or take them away from the conveyor belt in batches by cooperating with the placement plate and the placement groove.

[0017] Thirdly, the user can adjust the horizontal and vertical positions of the filling tube and the filling nozzle through the first linear slide, the second linear slide, and the first telescopic push rod, thereby completing the refrigerant filling process for multiple tanks on a placement plate.

[0018] Fourthly, the user can adjust the positions of the two limit plates in the front-to-back direction through the third telescopic push rods on both sides according to the size specifications of the placement plate in the front-to-back direction, so that the two limit plates limit the position of the placement plate in the front-to-back direction to avoid the installation plate from shifting in the front-to-back direction; through multiple limit plates, the placement plate can be prevented from independently shifting relative to the conveyor belt in the left and right directions, so the placement plate and the placement groove can be accurately moved to the bottom of the filling module, so that the user can conveniently fill the tank in the placement groove with refrigerant.

[0019] Fifth, through the cooperation of the first guide insert and the first guide insert rod, the first telescopic push rod can be prevented from being damaged; through the cooperation of the second guide insert and the second guide insert rod, the second telescopic push rod can be prevented from being deformed and damaged; through the cooperation of the third guide insert and the third guide insert rod, the third telescopic push rod can be prevented from being deformed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the first linear slide, the second linear slide, the first telescopic push rod, the filling tube, the filling nozzle, the first control valve, the first guide plug cylinder, the first guide plug rod, and the cross plate of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the processing table, the mounting frame, the conveyor belt, the placement plate, the limiting piece, the placement groove, the second telescopic push rod, the second guide insert cylinder, and the second guide insert rod of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the vertical plate, the third telescopic push rod, the limit plate, the third guide plug cylinder, and the third guide plug rod of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the processing table, supporting legs and mounting grooves of the present invention.

[0026] In the figure: 101, processing table; 102, supporting leg; 103, mounting groove; 104, mounting frame; 105, conveyor belt; 106, placement plate; 107, limit plate; 108, placement groove; 109, vertical rod; 110, top plate; 201, first linear slide; 202, second linear slide; 203, first telescopic push rod; 204, filling pipe; 205, filling nozzle; 206, first control valve; 207, cold agent storage tank; 208, discharge pipe; 209, pump body; 210, second control valve; 211, material guide hose; 212, first guide plug cylinder; 213, first guide plug rod; 214, horizontal plate; 301, second telescopic push rod; 302, second guide plug cylinder; 303, second guide plug rod; 401, vertical plate; 402, third telescopic push rod; 403, limit plate; 404, third guide plug cylinder; 405, third guide plug rod. DETAILED DESCRIPTION

[0027] In order to better understand the present invention, the content of the present invention is further clearly set forth in conjunction with the embodiments below, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are provided in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0028] like Figure 1 , 2 As shown in Figures 3 and 5, a refrigerant filling device comprises a processing table 101, a supporting leg 102 is arranged at the bottom of the processing table 101, a mounting groove 103 is opened in the middle of the top of the processing table 101 along the left and right directions, a mounting frame 104 is arranged in the mounting groove 103 along the left and right directions through a lifting module, a conveyor belt 105 running along the left and right directions and used for jointly conveying a plurality of placement plates 106 is arranged in the mounting frame 104, the width of the placement plate 106 in the front-to-back direction is greater than the width of the conveyor belt 105 in the front-to-back direction, and a plurality of conveyor belts 105 are also arranged on the conveyor belt 105 for adjusting the position of the installation plate in the left and right directions A limiting piece 107 is provided for limiting position, and a plurality of placement grooves 108 for clamping and placing the can body are respectively provided on the plurality of placement plates 106. A limiting module for limiting the placement plate 106 placed on the conveyor belt 105 is also provided on the top of the processing table 101. Vertical rods 109 are respectively provided at the top corners of the processing table 101. A top plate 110 is commonly provided on the tops of the four vertical rods 109. A mobile filling module is provided on the top plate 110. A lifting module is also provided on the top of the processing table 101, which is located below the mobile filling module and is used to lift the corresponding placement plate 106 from the conveyor belt 105.

[0029] like Figure 1 , 2 As shown, the mobile filling module includes a first linear slide 201 respectively arranged at the left and right sides of the bottom of the top plate 110 along the front-to-back direction, a second linear slide 202 running along the left-right direction is commonly arranged at the bottom of the slide seat of the two first linear slides 201, a first telescopic push rod 203 is vertically arranged at the bottom of the slide seat of the second linear slide 202, a filling tube 204 is arranged at the lower end of the output shaft of the first telescopic push rod 203, a filling nozzle 205 capable of pressing open the valve on the top of the tank body is arranged at the bottom of the filling tube 204, a first control valve 206 is arranged on the filling tube 204, and a feeding unit for conveying refrigerant to the filling tube 204 is arranged on the top of the top plate 110.

[0030] like Figure 1 , 2As shown, the feeding unit includes a refrigerant storage tank 207 arranged on the top of the top plate 110, and a discharge pipe 208 wound below the top plate 110 is arranged at the bottom of the refrigerant storage tank 207, a pump body 209 and a second control valve 210 are arranged on the discharge pipe 208, and a material guiding hose 211 is arranged between the lower end of the discharge pipe 208 and the side end of the filling pipe 204.

[0031] like Figure 1 , 3 As shown, the lifting module includes a plurality of second telescopic push rods 301 vertically arranged on the top of the processing table 101 and located in the mounting groove 103, and the upper ends of the output shafts of the plurality of second telescopic push rods 301 corresponding to the same mounting groove 103 are connected to the bottom of the corresponding mounting frame 104.

[0032] like Figure 1 , 4 As shown, the limiting module includes vertical plates 401 respectively arranged on the front and rear sides of the top of the processing table 101 and located on the outside of the conveyor belt 105, and the outer ends of the two vertical plates 401 are respectively and laterally provided with multiple third telescopic push rods 402 whose output shafts extend to the inner side of the vertical plates 401, and the inner ends of the output shafts of the multiple third telescopic push rods 402 on the front side and the inner ends of the output shafts of the multiple third telescopic push rods 402 on the rear side are respectively provided with limiting plates 403 adapted to the corresponding conveyor belts 105.

[0033] The user can first place multiple empty cans in turn into multiple placement grooves 108 of multiple placement plates 106, and then place the placement plates 106 containing the cans onto the conveyor belt 105. In this way, the placement plates 106 can be precisely positioned and placed by clamping multiple limiting plates 107 with the left and right side ends of the placement plates 106, and the placement plates 106 can be prevented from independently offsetting in the left and right directions relative to the conveyor belt 105.

[0034] Afterwards, the user can adjust the output shafts of the third telescopic push rods 402 on both sides and adjust the positions of the two limit plates 403 in the front-to-back direction according to the size specifications of the placement plate 106 in the front-to-back direction, so that the inner walls of the two limit plates 403 can contact the front and rear side ends of the multiple placement plates 106 and limit their positions in the front-to-back direction to avoid the installation plate from shifting in the front-to-back direction.

[0035] By limiting the two limit plates 403 in the front and rear directions and by limiting the limit pieces 107 in the left and right directions, it is possible to effectively prevent the placement plate 106 from self-deflecting during transportation on the conveyor belt 105; subsequently, the output shafts of the plurality of third telescopic push rods 402 can be synchronously shortened downward by a certain length, so that the mounting frame 104, the conveyor belt 105, the mounting plate, and the tank body move downward by a certain distance, so that the placement plate 106 moves downward, and the front and rear side ends of the placement plate 106 both collide with the top of the processing table 101 and are separated from the top of the conveyor belt 105, thereby preventing the conveyor belt 105 from being deformed and damaged due to the pressure test of the tank bodies during the subsequent refrigerant filling process of the plurality of tank bodies.

[0036] Afterwards, the conveyor belt 105 can be started to transport multiple placement plates 106 and multiple empty cans from left to right. When a placement plate 106 and multiple corresponding empty cans are transported to the bottom of the filling tube 204 and the filling nozzle 205, the conveyor belt 105 can be suspended, so that the placement plate 106 and multiple empty cans are stopped under the filling tube 204 and the filling nozzle 205. Subsequently, the slide seats of the two first linear slides 201 can be moved in the front-to-back direction to adjust the horizontal positions of the filling tube 204 and the filling nozzle 205 in the front-to-back direction, and the slide seat of the second linear slide 202 can be moved left and right to adjust the horizontal positions of the filling tube 204 and the filling nozzle 205 in the left-to-right direction, so that the filling nozzle 205 moves above the top of a can. Subsequently, the output shaft of the first telescopic push rod 203 can be adjusted to be telescopically extended and retracted vertically to adjust the filling tube 204 and the filling nozzle 205 vertically. The position in the direction is adjusted so that the filling nozzle 205 moves downward and the valve on the valve mouth of the tank body is pressed down, so that the valve on the valve mouth is opened under pressure; then the first control valve 206, the second control valve 210 and the pump body 209 can be opened, so that a certain amount of refrigerant leaves the refrigerant storage tank 207 through the liquid outlet pipe, and reaches the filling pipe 204 and the filling nozzle 205 through the material guide hose 211 and is filled into the tank body, then the output shaft of the first telescopic push rod 203 can be shortened by a certain length, the filling pipe 204 and the filling nozzle 205 are reset upward, the downward pressure on the valve mouth on the tank body is released, and the valve is closed after the pressure is released, thereby completing a filling of the refrigerant, and then the positions of the filling pipe 204 and the filling nozzle 205 can be continuously adjusted by the two first linear slides 201, the second linear slides 202, and the first telescopic push rod 203, and the refrigerant filling process is performed on other tanks on the placement plate 106.

[0037] Subsequently, after completing the refrigerant filling process for multiple tanks on a placement plate 106, the filling nozzle 205 can be reset upwards through the first telescopic push rod 203, and then the output shafts of the multiple telescopic push rods can be synchronously shortened by a certain length upwards, so that the mounting frame 104 and the conveyor belt 105 are reset upwards, so that the conveyor belt 105 can lift the multiple placement plates 106 from the top of the processing table 101 again, and continue to start the conveyor belt 105, and continue to transport the placement plates 106 and the tanks, thereby quickly and efficiently completing the refrigerant filling needs of the tanks on the multiple placement plates 106.

[0038] According to another embodiment of the present invention, Figure 2 As shown, a transverse plate 214 is further provided at the side end of the filling tube 204, a first guide plug 212 is further provided on the transverse plate 214, and a first guide plug rod 213 is further provided at the bottom of the slide seat of the first linear slide 201, which is plugged and fixed with the first guide plug 212. In the process of adjusting the output shaft of the first telescopic push rod 203 to adjust the vertical position of the filling tube 204, the first guide plug rod 213 can be plugged and operated vertically relative to the first guide plug 212, so as to prevent the first telescopic push rod 203 from being deformed and damaged by the radial force.

[0039] According to another embodiment of the present invention, Figure 3 As shown, the bottoms of the two mounting frames 104 are respectively provided with second guide inserts 302, and the top of the processing table 101 is also provided with a second guide insert rod 303 plugged and fixed with the second guide inserts 302. In the process of adjusting the output shaft of the second telescopic push rod 301 by telescopic adjustment, thereby adjusting the vertical positions of the mounting frame 104 and the conveyor belt 105, the second guide insert rod 303 can be vertically plugged and operated relative to the second guide inserts 302, so as to prevent the second telescopic push rod 301 from being deformed and damaged by radial force.

[0040] According to another embodiment of the present invention, Figure 4 As shown, the inner ends of the two limit plates 403 are respectively provided with third guide plugs 404 transversely in the front-to-back direction, and the inner walls of the two vertical plates 401 are respectively provided with third guide plugs 405 plugged and fixed with the corresponding third guide plugs 404. In the process of adjusting the output shaft of the third telescopic push rod 402 to adjust the position of the limit plate 403 in the front-to-back direction, the third guide plug 405 can be plugged and operated transversely relative to the third guide plug 404, so as to prevent the third telescopic push rod 402 from being deformed and damaged by the radial force.

[0041] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A refrigerant filling device, comprising a processing table (101), wherein a support leg (102) is provided at the bottom of the processing table (101), characterized in that: A mounting groove (103) is provided in the middle of the top of the processing table (101) along the left-right direction, a mounting frame (104) is provided in the mounting groove (103) along the left-right direction through a lifting module, a conveyor belt (105) is provided in the mounting frame (104) which runs along the left-right direction and is used to jointly convey a plurality of placement plates (106), the width of the placement plates (106) in the front-to-back direction is greater than the width of the conveyor belt (105) in the front-to-back direction, a plurality of limiting pieces (107) for limiting the position of the mounting plates in the left-to-right direction are also provided on the conveyor belt (105), and the plurality of placement plates (106) are respectively provided with a plurality of limiting pieces (107) for limiting the position of the mounting plates in the left-to-right direction. A plurality of placement grooves (108) for clamping and placing the can bodies are provided, a limiting module for limiting the placement plate (106) placed on the conveyor belt (105) is also provided on the top of the processing table (101), vertical rods (109) are respectively provided at the top corners of the processing table (101), a top plate (110) is commonly provided on the tops of the four vertical rods (109), a mobile filling module is provided on the top plate (110), and a lifting module is also provided on the top of the processing table (101), which is located below the mobile filling module and is used to lift the corresponding placement plate (106) from the conveyor belt (105).

2. The refrigerant filling equipment according to claim 1, characterized in that: The mobile filling module comprises a first linear slide (201) respectively arranged at the left and right sides of the bottom of the top plate (110) along the front-back direction; a second linear slide (202) running along the left-right direction is commonly arranged at the bottom of the slide seats of the two first linear slides (201); a first telescopic push rod (203) is vertically arranged at the bottom of the slide seat of the second linear slide (202); a filling tube (204) is arranged at the lower end of the output shaft of the first telescopic push rod (203); a filling nozzle (205) capable of pressing open the valve at the top of the tank body is arranged at the bottom of the filling tube (204); a first control valve (206) is arranged on the filling tube (204); and a feeding unit for conveying refrigerant to the filling tube (204) is arranged at the top of the top plate (110).

3. The refrigerant filling equipment according to claim 2, characterized in that: The feeding unit comprises a refrigerant storage tank (207) arranged on the top of the top plate (110); a discharge pipe (208) wound below the top plate (110) is arranged at the bottom of the refrigerant storage tank (207); a pump body (209) and a second control valve (210) are arranged on the discharge pipe (208); and a material guiding hose (211) is arranged between the lower end of the discharge pipe (208) and the side end of the filling pipe (204).

4. The refrigerant filling equipment according to claim 3, characterized in that: The side end of the filling tube (204) is also provided with a transverse plate (214), and a first guide insert cylinder (212) is also provided on the transverse plate (214). The bottom of the slide seat of the first linear slide (201) is also provided with a first guide insert rod (213) plugged and fixed to the first guide insert cylinder (212).

5. The refrigerant filling equipment according to claim 4, characterized in that: The lifting module comprises a plurality of second telescopic push rods (301) vertically arranged on the top of the processing table (101) and located in the installation groove (103), and the upper ends of the output shafts of the plurality of second telescopic push rods (301) corresponding to the same installation groove (103) are connected to the bottom of the corresponding installation frame (104).

6. The refrigerant filling equipment according to claim 5, characterized in that: The bottoms of the two mounting frames (104) are respectively provided with second guide insert cylinders (302), and the top of the processing table (101) is also provided with a second guide insert rod (303) plugged and fixed to the second guide insert cylinder (302).

7. The refrigerant filling device according to claim 6, characterized in that: The limiting module comprises vertical plates (401) respectively arranged on the front and rear sides of the top of the processing table (101) and located on the outside of the conveyor belt (105); the outer ends of the two vertical plates (401) are respectively transversely provided with a plurality of third telescopic push rods (402) whose output shafts extend to the inner side of the vertical plates (401); the inner ends of the output shafts of the plurality of third telescopic push rods (402) on the front side and the inner ends of the output shafts of the plurality of third telescopic push rods (402) on the rear side are respectively provided with limiting plates (403) adapted to the corresponding conveyor belt (105).

8. The refrigerant filling equipment according to claim 7, characterized in that: The inner ends of the two limit plates (403) are respectively provided with third guide inserts (404) transversely along the front-back direction, and the inner walls of the two vertical plates (401) are respectively provided with third guide inserts (405) plugged and fixed with the corresponding third guide inserts (404).

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