Welding protection device for liquid storage tank of air conditioner

Abstract

The utility model discloses an air conditioner liquid storage tank welding protection device which structurally comprises a workbench, a fixed die holder is fixedly arranged in the center of the top of the workbench, two sliding die holders are arranged on the fixed die holder, and locking mechanisms used for positioning the using positions of the sliding die holders are arranged in the sliding die holders. A limiting mechanism used for clamping the liquid storage tank is arranged at the upper end of the sliding mold base. The distance between the two sliding mold bases is adjusted according to the size of the air conditioner liquid storage tank needing to be welded, the using position of the sliding mold bases is locked through the locking mechanism after position adjustment of the sliding mold bases is completed, the locking and limiting effect between the sliding mold bases and the fixed mold base is guaranteed, wrong displacement during using of the sliding mold bases is avoided, and the welding quality is improved. A to-be-machined liquid storage tank is placed above the two sliding mold bases, the liquid storage tank is clamped and fixed through the limiting mechanism, and the stability of the liquid storage tank during welding is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding of air-conditioning liquid storage tanks, and more specifically, to a welding protection device for air-conditioning liquid storage tanks. Background Art

[0002] Air conditioning liquid storage tanks are used to store refrigerant. Their main functions include achieving gas-liquid separation, removing foreign matter, and controlling the amount of oil return. The inlet and outlet pipes of traditional liquid storage tanks are made of copper. The welding processes between the inlet and outlet pipes and the cylinder mostly use flame welding, furnace brazing, and high-frequency welding. The welding materials are silver solder, brass solder, and phosphor bronze solder respectively. Products processed by the above process have high material and welding costs, and the working environment is poor. Air conditioning liquid storage tanks are constructed by welding during production, so people will use welding protection devices to work on them.

[0003] At present, a Chinese patent with a publication (announcement) number of CN214602838U discloses a welding protection device for an air-conditioning liquid reservoir, which includes a working plate, a support rod, a track, a fixing plate, a shell and a clamping plate. A support rod is provided at the bottom of the working plate, and the support rod is divided into four groups. The four groups of support rods are respectively fixedly connected to the working plate, and two groups of tracks are fixedly connected to the upper surface of the working plate. There are two groups of fixing plates, and the tops of the two groups of fixing plates are respectively provided with shells. The two groups of shells are respectively fixedly connected to the two groups of fixing plates, and two groups of clamping plates are respectively provided in the two groups of shells. The two groups of clamping plates are arranged oppositely. The welding protection device for the air-conditioning liquid reservoir can be adjusted according to the size of the liquid reservoir to be welded when in use. The spacing between the two fixed plates 4 is reduced, but the fixed plate 4 is slidably arranged on the working plate 1 through the cooperation between the slide rail 8 and the track 3, and the fixed plate 4 is limited and fixed only through the cooperation between the clamp block 15 and the track 3, and the clamp block 15 and the track 16 are surface-to-surface contact. In the above state, the fixed plate 4 and the track 3 are limited only by the elastic force of the spring 16 and the friction force between the clamp block 15 and the track 3, resulting in a poor limiting effect of the fixed plate 4. Therefore, during the welding process, the two fixed plates 4 are still easily displaced due to external force, which drives the clamped liquid storage tank to be displaced, affecting the welding accuracy and welding effect of the liquid storage tank. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a welding protection device for an air conditioning liquid storage tank to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding protection device for an air-conditioning liquid storage tank, comprising a workbench, a fixed mold base is fixedly provided at the center of the top of the workbench, two sliding mold bases are arranged on the fixed mold base, the sliding mold base has a built-in locking mechanism for positioning its use position, and a limiting mechanism is arranged on the upper end of the sliding mold base for clamping the liquid storage tank.

[0006] The utility model is further configured as follows: a sliding recess is formed in the middle of the top surface of the fixed mold base, two limiting guide grooves are correspondingly opened at the left and right ends of the fixed mold base, the sliding mold base is adapted to the sliding recess and has guide parts adapted to the limiting guide grooves on both sides.

[0007] The utility model is further configured as follows: the locking mechanism includes a cavity formed in a sliding mold base, a first hole portion is provided on one side of the cavity and the outer end of the first hole portion has a second hole portion extending to the outside of the sliding mold base, the first hole portion is coaxial with the second hole portion and the inner diameter of the first hole portion is smaller than the inner diameter of the second hole portion, a sliding rod is built into the first hole portion, a locking rod connected to the sliding rod is built into the second hole portion, and a plurality of locking grooves cooperating with the locking rod are provided in an array of side walls of the sliding recess.

[0008] The utility model is further configured as follows: one end of the slide rod extends into the cavity and is connected with a push-pull plate, and an outer ring of the slide rod is located between the lock rod and the inner abutment wall of the second hole portion and is sleeved with a spring member.

[0009] The utility model is further configured as follows: a through hole communicating with the outside of the fixed mold base is opened on one side of the cavity, a matching column is built in the through hole and a force plate is connected to the outer end of the matching column, two fixing ears are correspondingly arranged at the inner end of the matching column, a fixing rod is connected between the two fixing ears, and an oblique groove matching with the fixing rod is opened on the push-pull plate.

[0010] The utility model is further configured as follows: the limiting mechanism includes a positioning seat fixedly arranged on the upper surface of the sliding mold seat and two clamping plates correspondingly arranged on the positioning seat, a limiting sliding groove is arranged on the top surface of the positioning seat, and a sliding block adapted to the limiting sliding groove is connected to the lower end of the clamping plate.

[0011] The utility model is further configured as follows: the splint includes a vertical portion and a bent portion, a transmission rod is passed through the two vertical portions and the transmission rod has two threaded sections with opposite rotation directions, the vertical portion has a threaded sleeve adapted to the threaded section of the transmission rod, and one end of the transmission rod is connected to an adjusting knob.

[0012] In summary, the utility model has the following beneficial effects: when in use, the distance between the two sliding die seats is adjusted according to the size of the air-conditioning liquid storage tank to be welded; after the position adjustment of the sliding die seat is completed, its use position is locked by a locking mechanism to ensure the locking and limiting effect between the sliding die seat and the fixed die seat, thereby avoiding erroneous displacement of the sliding die seat during use; the liquid storage tank to be processed is placed above the two sliding die seats, and the liquid storage tank is clamped and fixed by a limiting mechanism to ensure its stability during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the fixed die base and the sliding die base of the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the structure of the sliding die base of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the fixed mold base of the utility model;

[0018] Figure 5 It is a schematic diagram of the cooperation between the limiting slide groove and the sliding block of the utility model.

[0019] : 1. workbench; 2. fixed die base; 20. sliding recess; 21. limiting guide groove; 22. locking groove; 3. sliding die base; 30. guiding part; 31. accommodating cavity; 32. first hole part; 33. second hole part; 34. through hole; 4. sliding rod; 40. locking rod; 41. push-pull plate; 42. spring member; 43. matching column; 44. force plate; 45. fixing ear; 46. fixing rod; 47. inclined groove; 5. positioning seat; 50. splint; 51. limiting slide groove; 52. sliding block; 53. vertical part; 54. bending part; 55. transmission rod; 56. threaded section; 57. threaded sleeve; 58. adjusting knob. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5As shown, a welding protection device for an air-conditioning liquid storage tank of an embodiment of the utility model includes a workbench 1, a fixed mold base 2 is fixedly provided at the top center of the workbench 1, two sliding mold bases 3 are arranged on the fixed mold base 2, the sliding mold base 3 has a built-in locking mechanism for positioning its use position, and a limiting mechanism for clamping the liquid storage tank is arranged on the upper end of the sliding mold base 3.

[0022] When in use, the distance between the two sliding die seats 3 is adjusted according to the size of the air-conditioning liquid storage tank to be welded. After the position adjustment of the sliding die seat 3 is completed, its use position is locked by the locking mechanism, and then the liquid storage tank to be processed is placed above the two sliding die seats 3, and the liquid storage tank is clamped and fixed by the limiting mechanism to ensure its stability during welding.

[0023] A sliding recess 20 is formed in the middle of the top surface of the fixed mold base 2, and two limiting guide grooves 21 are correspondingly provided at the left and right ends of the fixed mold base 2. The sliding mold base 3 is adapted to the sliding recess 20 and has guide portions 30 adapted to the limiting guide grooves 21 on both sides; the locking mechanism includes a cavity 31 formed in the sliding mold base 3, a first hole portion 32 is provided on one side of the cavity 31, and the outer end of the first hole portion 32 has a second hole portion 33 extending to the outside of the sliding mold base 3, the first hole portion 32 is coaxial with the second hole portion 33, and the inner diameter of the first hole portion 32 is smaller than the inner diameter of the second hole portion 33, the first hole portion 32 has a built-in sliding rod 4, and the second hole portion 33 has a built-in connecting rod 4 A locking rod 40 is connected to the cavity 31, and a plurality of locking grooves 22 cooperating with the locking rod 40 are arranged in an array on the side wall of the sliding recess 20; one end of the sliding rod 4 extends into the cavity 31 and is connected to a push-pull plate 41, and an outer ring of the sliding rod 4 is located between the locking rod 40 and the inner wall of the second hole portion 33 and is sleeved with a spring member 42; a through hole 34 communicating with the outside of the fixed mold base 2 is arranged on one side of the cavity 31, a matching column 43 is arranged in the through hole 34, and a force plate 44 is connected to the outer end of the matching column 43, and two fixing ears 45 are correspondingly arranged at the inner end of the matching column 43, a fixing rod 46 is connected between the two fixing ears 45, and an inclined groove 47 cooperating with the fixing rod 46 is arranged on the push-pull plate 41.

[0024] When in use, in the initial state, the lock rod 40 always extends out of the second hole portion 33 and enters the lock groove 22 due to the force of the spring member 42 to limit the use position of the sliding die holder 3;

[0025] When the use position of the sliding die holder 3 needs to be adjusted, refer to the instructions. Figure 2, the staff presses the force plate 44 and causes the inner end of the matching column 43 to move toward the cavity 31. The internal pressure of the matching column 43 controls the push-pull plate 41 to move rightward through the cooperation between the fixed rod 46 and the inclined groove 47. The movement of the push-pull plate 41 drives the sliding rod 4 and the locking rod 40 to move. The locking rod 40 overcomes the force of the spring member 42 and withdraws from the locking groove 22 and retracts into the second hole portion 33. At this time, the locking limit between the sliding die base 3 and the fixed die base 2 disappears, and the use position of the sliding die base 3 can be adjusted. After the adjustment is completed, the pressure on the pressure plate is cancelled. At this time, the locking rod 40 pops out of the second hole portion 33 again due to the release of the energy stored in the spring member 42, thereby locking the position of the sliding die base 3.

[0026] A horizontal plate is arranged on the top surface of the sliding die base 3 at a position corresponding to the force plate 44 . During operation, the worker holds the horizontal plate tightly with the index finger and applies pressure to the pressure plate with the thumb to adjust the position of the sliding die base 3 with one hand.

[0027] The limiting mechanism includes a positioning seat 5 fixed on the upper surface of the sliding mold seat 3 and two clamping plates 50 correspondingly arranged on the positioning seat 5. A limiting sliding groove 51 is arranged on the top surface of the positioning seat 5, and a sliding block 52 adapted to the limiting sliding groove 51 is connected to the lower end of the clamping plate 50.

[0028] When in use, the movable paths of the two clamping blocks are limited by the cooperation between the sliding block 52 and the limiting groove, wherein the cross section of the limiting groove 51 is an inverted "T"-shaped structure, and the size of the sliding block 52 is adapted to the limiting groove 51.

[0029] The splint 50 includes a vertical portion 53 and a bent portion 54. A transmission rod 55 is provided between the two vertical portions 53. The transmission rod 55 has two threaded sections 56 with opposite rotation directions. The vertical portion 53 has a threaded sleeve 57 adapted to the threaded sections 56 of the transmission rod 55. An adjusting knob 58 is connected to one end of the transmission rod 55.

[0030] When in use, the liquid storage tank is placed between the two clamping plates 50, and the transmission rod 55 supports the bottom of the liquid storage tank. The adjusting knob 58 is rotated to drive the transmission rod 55 to rotate. The transmission rod 55 rotates through the threaded cooperation between the two threaded sections 56 and the threaded sleeve 57 and the guide cooperation between the clamping block and the positioning seat 5, driving the two clamping blocks to move toward each other to clamp and fix the liquid storage tank. When the clamping limit needs to be cancelled, the opposite operation can be performed.

[0031] Among them, the limit clamping area formed by the two bent parts 54 (with rubber pads on the inner side) can adapt to the limit clamping of air-conditioning liquid storage tanks of different sizes, thereby improving the flexibility of use of the device.

[0032] It should also be pointed out that the terms used in the present invention, such as “front”, “rear”, “vertical”, “horizontal”, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0033] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A welding protection device for an air conditioning liquid storage tank, comprising a workbench (1), characterized in that: A fixed die base (2) is fixedly arranged at the center of the top of the workbench (1), and two sliding die bases (3) are arranged on the fixed die base (2). The sliding die base (3) has a built-in locking mechanism for positioning its use position, and a limiting mechanism for clamping the liquid storage tank is arranged at the upper end of the sliding die base (3).

2. The welding protection device for the air conditioning liquid storage tank according to claim 1 is characterized in that: A sliding recess (20) is formed in the middle of the top surface of the fixed mold base (2), two limiting guide grooves (21) are correspondingly provided at the left and right ends of the fixed mold base (2), and the sliding mold base (3) is adapted to the sliding recess (20) and has guide parts (30) on both sides adapted to the limiting guide grooves (21).

3. The welding protection device for the air conditioning liquid storage tank according to claim 2 is characterized in that: The locking mechanism comprises a cavity (31) formed in a sliding die seat (3), a first hole portion (32) is provided on one side of the cavity (31), and the outer end of the first hole portion (32) has a second hole portion (33) extending to the outside of the sliding die seat (3), the first hole portion (32) is coaxial with the second hole portion (33), and the inner diameter of the first hole portion (32) is smaller than the inner diameter of the second hole portion (33), the first hole portion (32) has a built-in sliding rod (4), and the second hole portion (33) has a built-in locking rod (40) connected to the sliding rod (4), and the side wall array of the sliding recess (20) is provided with a plurality of locking grooves (22) cooperating with the locking rod (40).

4. The welding protection device for the air conditioning liquid storage tank according to claim 3 is characterized in that: One end of the slide bar (4) extends into the cavity (31) and is connected to a push-pull plate (41); an outer ring of the slide bar (4) is located between the locking rod (40) and the inner wall of the second hole portion (33) and is sleeved with a spring member (42).

5. The welding protection device for the air conditioning liquid storage tank according to claim 4 is characterized in that: A through hole (34) communicating with the outside of the fixed mold base (2) is provided on one side of the cavity (31); a matching column (43) is built in the through hole (34); and the outer end of the matching column (43) is connected to a force plate (44); two fixing ears (45) are correspondingly provided at the inner end of the matching column (43); a fixing rod (46) is connected between the two fixing ears (45); and an inclined groove (47) matching with the fixing rod (46) is provided on the push-pull plate (41).

6. The welding protection device for the air conditioning liquid storage tank according to claim 1 is characterized in that: The limiting mechanism comprises a positioning seat (5) fixedly arranged on the upper surface of the sliding mold seat (3) and two clamping plates (50) correspondingly arranged on the positioning seat (5); a limiting sliding groove (51) is provided on the top surface of the positioning seat (5); and a sliding block (52) adapted to the limiting sliding groove (51) is connected to the lower end of the clamping plate (50).

7. The welding protection device for the air conditioning liquid storage tank according to claim 6 is characterized in that: The clamping plate (50) comprises a vertical portion (53) and a bent portion (54); a transmission rod (55) is provided between the two vertical portions (53); the transmission rod (55) has two threaded sections (56) with opposite rotation directions; the vertical portion (53) has a threaded sleeve (57) adapted to the threaded section (56) of the transmission rod (55); and one end of the transmission rod (55) is connected to an adjusting knob (58).

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