Automatic cleaning and drying integrated equipment

Abstract

The utility model discloses automatic cleaning and drying integrated equipment, which belongs to the field of automatic cleaning and comprises a base, and a working box is fixedly mounted on the base. The interior of the working box is sequentially divided into an ultrasonic cleaning pool, a high-pressure flushing bin, a drying bin and a placing pool by a plurality of partition plates from left to right; a warm air drying mechanism is mounted in the drying bin; the top of the working box is detachably connected with a plurality of oil pump fixing mechanisms; an oil pump self-moving mechanism used for enabling the oil pump to move automatically is installed on the top of the base table. By means of the mode, the oil pump self-moving mechanism and the oil pump fixing mechanism are matched, so that the oil pump can be automatically replaced to a next washing and drying station after ultrasonic cleaning, assembly line work of oil pump cleaning is achieved, and the cleaning efficiency is improved; and the blower gun can be automatically inserted into a pipeline in the oil pump and blows air to dry the inside and the outside of the oil pump together with the air duct, so that the effect of drying all positions of the oil pump is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automatic cleaning, specifically relates to an automatic cleaning and drying integrated equipment. BACKGROUND

[0002] As an important part of industrial cleaning and automobile manufacturing, the oil pump cleaning field is an important link in the field of automobile maintenance, which has important significance for ensuring the normal operation of the engine and prolonging the service life of the engine. With the continuous progress of automobile technology, the technology of cleaning the oil pump is also constantly innovating. By introducing efficient cleaning equipment and technology, the oil pump can be cleaned more thoroughly, impurities can be eliminated, and the performance of the engine and the energy saving and emission reduction effect can be improved.

[0003] Chinese patent CN220942179U discloses an oil pump cleaning device, which comprises a shell, a cleaning cavity is arranged in the shell, an ultrasonic generator is arranged on the side wall of the shell, a cavity is reserved in the side wall of the shell, an ultrasonic transducer is arranged at the bottom end of the cavity, the ultrasonic transducer and the ultrasonic generator are connected through a high-frequency wire, a flushing assembly is installed on the shell, a drying assembly is installed on the side wall of the shell, a blowdown pipe is arranged at the bottom of the shell, and a valve is arranged on the blowdown pipe. The existing oil pump cleaning device cannot flush the oil pump, which reduces the cleaning quality. After cleaning the oil pump, the oil pump cannot be used until it is dried naturally, which takes a long time and affects the use of the oil pump. However, the device still has the following problems:

[0004] 1. After each ultrasonic cleaning of the oil pump, the cleaning liquid needs to be discharged before the next step of flushing and drying, which delays the working time and wastes time;

[0005] 2. When the air pipe blows dry the oil pump, only the outside is blown dry, and a large amount of water droplets remain inside, which is difficult to dry at the same time.

[0006] Therefore, the utility model designs an automatic cleaning and drying integrated equipment to solve the above problems. UTILITY MODEL CONTENTS

[0007] In view of the above shortcomings of the prior art, the utility model provides an automatic cleaning and drying integrated equipment.

[0008] To achieve the above purpose, the utility model realizes the following technical scheme:

[0009] An automatic cleaning and drying integrated equipment, comprising a base, a working tank for cleaning and drying the oil pump is fixedly installed on the base;

[0010] The inside of the working box is divided into an ultrasonic cleaning pool, a high-pressure flushing bin, a drying bin and a placing pool from left to right by a plurality of partitions in sequence; the ultrasonic cleaning pool is used for cleaning the residual oil metal chips and oil stains on the oil pump; the high-pressure flushing bin is internally provided with a plurality of high-pressure nozzles connected with external water pipes for flushing away the residual sewage on the cleaned oil pump; the drying bin is used for drying the cleaned and flushed oil pump; and the placing pool is used for placing the cleaned and dried oil pump.

[0011] The drying bin is internally provided with a warm air drying mechanism for drying the oil pump.

[0012] The top of the working box is detachably connected with a plurality of oil pump fixing mechanisms for fixing the oil pump.

[0013] The top of the base is provided with an oil pump self-moving mechanism for moving the oil pump.

[0014] The warm air drying mechanism comprises a warm air input assembly and an oil pump pipeline alignment assembly; the warm air input assembly and the oil pump pipeline alignment assembly are connected with the base, the oil pump pipeline alignment assembly is connected with the warm air input assembly, and the oil pump pipeline alignment assembly is connected with the oil pump self-moving mechanism; the warm air input assembly is used for providing drying warm air, and the oil pump pipeline alignment assembly is used for aligning the warm air with the internal pipeline of the oil pump for blowing and drying.

[0015] Further, the top of the base is fixedly connected with a top cover through a support, the top cover is located on the top openings of the high-pressure flushing bin and the drying bin, and the top cover has gaps with the top of the high-pressure flushing bin and the top of the drying bin.

[0016] Further, the oil pump fixing mechanism comprises a fixing frame, two placing grooves for placing the front and rear ends of the fixing frame are symmetrically formed on the front and rear sides of the ultrasonic cleaning pool, the high-pressure flushing bin, the drying bin and the placing pool, the end of the fixing frame is slidably connected with the placing groove, the fixing frame is connected with the oil pump self-moving mechanism, and the bottom of the fixing frame is provided with the same profiling structure as the oil pump for clamping the oil pump.

[0017] Further, the warm air input assembly comprises an air duct and an air gun; the air duct is fixedly installed on the top cover at the top of the drying bin, and the air gun is installed in the drying bin; the air gun is connected with the oil pump pipeline alignment assembly, the air duct is used for blowing and drying the outside of the oil pump, and the air gun is used for blowing and drying the inside of the oil pump.

[0018] Further, the oil pump pipeline alignment assembly comprises a sliding plate, a ball and a sliding groove; the sliding grooves are formed at the front and rear ends of the drying bin, the two ends of the sliding plate are respectively arranged in the two sliding grooves for limiting sliding connection, and the middle bottom of the sliding plate is fixedly connected with the air gun; the balls are installed at the front and rear ends of the bottom of the sliding plate, and the balls are connected with the oil pump self-moving mechanism.

[0019] Further, the oil pump self-moving mechanism comprises slide rails, slide blocks, a driving assembly and an oil pump moving assembly; two slide rails are fixedly installed at left and right ends of the top of the base; one slide block is slidably connected to each of the two slide rails; the driving assembly is connected to the top of each of the two slide blocks; the base and the oil pump moving assembly are connected to the driving assembly; and the fixed frame is connected to the oil pump moving assembly.

[0020] Further, the driving assembly comprises a horizontal moving cylinder and vertical moving cylinders; the horizontal moving cylinder is fixedly connected to the top left end of the base, and the driving end of the horizontal moving cylinder is fixedly connected to the left slide block; each of the two slide blocks is fixedly connected to a vertical moving cylinder at the top thereof, and the driving ends of the two vertical moving cylinders are connected to two ends of the oil pump moving assembly, respectively.

[0021] Further, the oil pump moving assembly comprises a moving frame; the driving ends of the two vertical moving cylinders are fixedly connected to two ends of the bottom of the moving frame, respectively; a plurality of positioning grooves are symmetrically formed in the top of the moving frame, and the front and rear positioning grooves are used for placing the front and rear ends of the fixed frame, respectively; and the top of the moving frame is connected to the ball in a rolling abutting manner.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] 1. The oil pump self-moving mechanism and the oil pump fixing mechanism are matched to automatically replace the oil pump to the next washing and drying station after ultrasonic cleaning, so that the pipeline operation of the oil pump cleaning is realized, and the cleaning efficiency is improved.

[0024] 2. The air gun is automatically inserted into the internal pipeline of the oil pump, and the air duct is used to blow and dry the inside and outside of the oil pump, so that the oil pump can be dried at each position. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a perspective view of an automatic cleaning and drying integrated equipment of the present application;

[0027] Figure 2 It is a front view of an automatic cleaning and drying integrated equipment of the present application;

[0028] Figure 3 It is a side view of an automatic cleaning and drying integrated equipment of the present application alongFigure 2 a partial perspective view of the present application along A-A direction;

[0029] Figure 4 for the present application along Figure 2 a partial perspective view of the present application along A-A direction;

[0030] Figure 5 a partial perspective view of the present application along A-A direction;

[0031] The labels in the drawings respectively represent:

[0032] 1, base; 2, working box; 21, ultrasonic cleaning pool; 22, high pressure flushing bin; 23, drying bin; 24, placement pool; 4, oil pump fixing mechanism; 41, fixing frame; 42, placement groove; 5, oil pump self-moving mechanism; 51, sliding rail; 52, sliding block; 53, driving assembly; 531, transverse moving cylinder; 532, vertical moving cylinder; 54, oil pump moving assembly; 541, moving frame; 542, positioning groove; 7, warm air drying mechanism; 71, warm air input assembly; 711, air duct; 712, air gun; 72, oil pump pipeline alignment assembly; 721, sliding plate; 722, ball; 723, sliding groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In the following description, "left", "right", "front", "back", "up", "down" are oriented in the perspective of the front view.

[0035] Embodiment one: in some embodiments, referring to the front view of the drawings Figures 1-5 An automatic cleaning and drying integrated equipment, comprising a base 1, a working box 2, an oil pump fixing mechanism 4, an oil pump self-moving mechanism 5 and a warm air drying mechanism 7; the working box 2 for cleaning and drying the oil pump is fixedly installed on the base 1; the warm air drying mechanism 7 for drying the oil pump is installed in the drying bin 23; a plurality of oil pump fixing mechanisms 4 for fixing the oil pump are detachably connected to the top of the working box 2; the oil pump self-moving mechanism 5 for moving the oil pump is installed on the top of the base 1.

[0036] The inside of the working box 2 is divided into an ultrasonic cleaning pool 21, a high-pressure flushing bin 22, a drying bin 23 and a placing pool 24 from left to right by a plurality of partitions in sequence; the ultrasonic cleaning pool 21 is used for cleaning the residual oil dirt and metal chips on the oil pump; a plurality of high-pressure nozzles connected with external water pipes are installed in the high-pressure flushing bin 22, and the high-pressure nozzles are used for flushing away the residual sewage on the cleaned oil pump; the drying bin 23 is used for drying the cleaned and flushed oil pump; and the placing pool 24 is used for placing the cleaned and dried oil pump.

[0037] The warm air drying mechanism 7 comprises a warm air input assembly 71 and an oil pump pipeline alignment assembly 72; the warm air input assembly 71 and the oil pump pipeline alignment assembly 72 are connected with the base 1; the oil pump pipeline alignment assembly 72 is connected with the warm air input assembly 71; and the oil pump pipeline alignment assembly 72 is connected with the oil pump self-moving mechanism 5; the warm air input assembly 71 is used for providing drying warm air; and the oil pump pipeline alignment assembly 72 is used for aligning the warm air with the internal pipeline of the oil pump, so that the internal pipeline of the oil pump can be dried.

[0038] The top of the base 1 is fixedly connected with a top cover through a support, so as to prevent water from splashing out and reduce the warm air from escaping; the top cover is located on the top openings of the high-pressure flushing bin 22 and the drying bin 23, and the top cover has a gap with the top of the high-pressure flushing bin 22 and the top of the drying bin 23.

[0039] In the utility model, the operator fixes the oil pump to be cleaned on the oil pump fixing mechanism 4, then moves the oil pump fixing mechanism 4 to the inside of the ultrasonic cleaning pool 21 through the oil pump moving assembly 54, the ultrasonic cleaning pool 21 cleans the oil pump, then the oil pump self-moving mechanism 5 drives the oil pump fixing mechanism 4 to move rightwards to the high-pressure flushing bin 22 through the oil pump moving assembly 54 to flush the cleaned oil pump, simultaneously, the operator fixes the next oil pump to be cleaned on another oil pump fixing mechanism 4 and puts it into the ultrasonic cleaning pool 21 to clean; then the oil pump self-moving mechanism 5 drives the first placed oil pump fixing mechanism 4 to move rightwards to the drying bin 23 to dry, at this time, the oil pump pipeline alignment assembly 72 aligns the warm air input assembly 71 with the oil pump and simultaneously blows and dries the inside and outside of the oil pump; after drying, the driving assembly 53 drives the first placed oil pump fixing mechanism 4 to move rightwards into the inside of the placing pool 24 through the oil pump moving assembly 54, so that the flow line operation of cleaning the oil pump is realized, the cleaning efficiency is improved, and the inside and outside of the oil pump are simultaneously blown and dried.

[0040] In some embodiments, the oil pump fixing mechanism 4 comprises a fixing frame 41, the ultrasonic cleaning tank 21, the high-pressure flushing bin 22, the drying bin 23 and the placement tank 24 are symmetrically provided with two placement grooves 42 for placing the front and rear ends of the fixing frame 41 on the front and rear sides, the end of the fixing frame 41 is in sliding connection with the placement groove 42, the fixing frame 41 is connected with the oil pump self-moving mechanism 5, and the bottom of the fixing frame 41 is provided with the same profiling structure as the oil pump for clamping the oil pump.

[0041] In some embodiments, the warm air input assembly 71 comprises an air duct 711 and an air gun 712, the air duct 711 is fixedly installed on the top cover at the top of the drying bin 23, the air gun 712 is installed in the drying bin 23, the air gun 712 is connected with the oil pump pipeline alignment assembly 72, the air duct 711 is used for blowing dry outside the oil pump, and the air gun 712 is used for blowing dry inside the oil pump.

[0042] In some embodiments, the oil pump pipeline alignment assembly 72 comprises a sliding plate 721, a ball 722 and a sliding groove 723, the front and rear ends of the drying bin 23 are provided with the sliding groove 723, the two ends of the sliding plate 721 are respectively arranged in the two sliding grooves 723 and are in limiting sliding connection, and the middle part of the bottom of the sliding plate 721 is fixedly connected with the air gun 712; the front and rear ends of the bottom of the sliding plate 721 are provided with the ball 722, and the sliding plate 721 is in rotary connection with the ball 722; the ball 722 is connected with the oil pump self-moving mechanism 5.

[0043] In the utility model, when the oil pump washed by the high-pressure flushing bin 22 needs to be moved to the drying bin 23, the oil pump self-moving mechanism 5 first drives the sliding plate 721 to move upwards by a distance, simultaneously, the oil pump self-moving mechanism 5 drives the fixing frame 41 to move upwards, when the sliding plate 721 slides upwards to the outside of the top end of the sliding groove 723, at this moment, the fixing frame 41 slides upwards to the outside of the top end of the placement groove 42, at this moment, the height of the top surface of the fixing frame 41 is lower than the height of the bottom surface of the sliding plate 721, then the oil pump self-moving mechanism 5 drives the fixing frame 41 to move rightwards, at this moment, the ball 722 slides with the top of the fixing frame 41; when the two ends of the fixing frame 41 move to the positions opposite the placement grooves 42 on the front and rear sides of the drying bin 23, the oil pump self-moving mechanism 5 cancels the support for the fixing frame 41 and the sliding plate 721, the fixing frame 41 and the sliding plate 721 simultaneously descend, the fixing frame 41 descends to the inside bottom of the placement groove 42, and then the sliding plate 721 continues to descend by a distance to the inside bottom of the sliding groove 723, at this moment, the air gun 712 is inserted into the inside pipeline of the oil pump to blow and dry the inside pipeline of the oil pump, and the air duct 711 dries the outside of the oil pump.

[0044] In some embodiments, the oil pump self-moving mechanism 5 comprises slide rails 51, slide blocks 52, a driving assembly 53 and an oil pump moving assembly 54; two slide rails 51 are fixedly installed at the left and right ends of the top of the base 1; each of the two slide rails 51 is slidably connected with a slide block 52; the top of each of the two slide blocks 52 is connected with the driving assembly 53; the base 1 and the oil pump moving assembly 54 are connected with the driving assembly 53; and the fixed frame 41 is connected with the oil pump moving assembly 54.

[0045] Specifically, the driving assembly 53 comprises a horizontal moving cylinder 531 and a vertical moving cylinder 532; the horizontal moving cylinder 531 is fixedly connected with the left end of the top of the base 1, and the driving end of the horizontal moving cylinder 531 is fixedly connected with the left slide block 52; each of the two slide blocks 52 is fixedly connected with a vertical moving cylinder 532 at the top thereof, and the driving ends of the two vertical moving cylinders 532 are connected with the two ends of the oil pump moving assembly 54, respectively.

[0046] The oil pump moving assembly 54 comprises a moving frame 541; the driving ends of the two vertical moving cylinders 532 are fixedly connected with the two ends of the bottom of the moving frame 541; a plurality of positioning grooves 542 are symmetrically formed in the top of the moving frame 541, and the front and rear positioning grooves 542 are used for placing the front and rear ends of the fixed frame 41, respectively; and the top of the moving frame 541 is rollingly connected with the ball 722 in abutment.

[0047] In the utility model, the operator fixes the oil pump to be cleaned on the fixed frame 41, then places the fixed frame 41 on the upper side of the ultrasonic cleaning tank 21 through the placing groove 42, and then pushes the moving frame 541 upwards through the vertical moving cylinder 532; in the process of upward movement of the moving frame 541, the inner bottom wall of the positioning groove 542 abuts against the fixed frame 41; then the horizontal moving cylinder 531 drives the moving frame 541 to move rightwards by pushing the vertical moving cylinder 532, the moving frame 541 drives the fixed frame 41 to move rightwards, then the driving end of the vertical moving cylinder 532 is reset to move downwards to place the front and rear ends of the fixed frame 41 in the placing grooves 42 on the left and right sides of the high-pressure flushing bin 22, respectively, and at this moment, the self-movement of the fixed frame 41 is completed.

[0048] When the oil pump in the high-pressure washing bin 22 needs to be moved to the drying bin 23 after washing, the vertical moving cylinder 532 pushes the moving frame 541 to move upward, the moving frame 541 first abuts against the sliding plate 721, and simultaneously pushes the sliding plate 721 to move upward along the sliding groove 723, and then the inner bottom wall of the positioning groove 542 abuts against the fixed frame 41 to move upward; then the horizontal moving cylinder 531 drives the moving frame 541 to move rightward by pushing the vertical moving cylinder 532, the ball 722 rolls with the top of the moving frame 541, and then the fixed frame 41 completes the rightward movement; then the vertical moving cylinder 532 is reset to move downward, and places the front and rear ends of the fixed frame 41 in the placing grooves 42 on the left and right sides of the drying bin 23 respectively, and then the vertical moving cylinder 532 continues to reset to move downward to drive the air gun 712 to continue to move downward under the action of gravity until the air gun 712 penetrates into the pipeline of the oil pump; then the air gun 712 and the air duct 711 blow air to dry the inside and outside of the oil pump at the same time.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automated washing and drying integrated apparatus comprising a base (1), characterized in that: It also includes a working box (2), an oil pump fixing mechanism (4), an oil pump self-moving mechanism (5) and a warm air drying mechanism (7); The base (1) is fixedly provided with a working box (2) for cleaning and drying the oil pump; The working box (2) is divided into an ultrasonic cleaning pool (21), a high-pressure flushing bin (22), a drying bin (23) and a placement pool (24) from left to right by a plurality of partitions; the ultrasonic cleaning pool (21) is used for cleaning the residual oil and metal chips on the oil pump; the high-pressure flushing bin (22) is internally provided with a plurality of high-pressure nozzles connected with external water pipes, which are used for flushing away the residual sewage on the cleaned oil pump; the drying bin (23) is used for drying the cleaned and flushed oil pump; and the placement pool (24) is used for placing the cleaned and dried oil pump. The drying bin (23) is internally provided with a warm air drying mechanism (7) for drying the oil pump. The top of the working box (2) is detachably connected with a plurality of oil pump fixing mechanisms (4) for fixing the oil pump. The top of the base (1) is provided with an oil pump self-moving mechanism (5) for moving the oil pump. The warm air drying mechanism (7) comprises a warm air input assembly (71) and an oil pump pipeline alignment assembly (72); the warm air input assembly (71) and the oil pump pipeline alignment assembly (72) are connected with the base (1); the oil pump pipeline alignment assembly (72) is connected with the warm air input assembly (71); the oil pump pipeline alignment assembly (72) is connected with the oil pump self-moving mechanism (5); the warm air input assembly (71) is used for providing drying warm air; and the oil pump pipeline alignment assembly (72) is used for aligning the warm air with the internal pipeline of the oil pump for blowing and drying.

2. The automated cleaning and drying integrated apparatus according to claim 1, wherein, The top of the base (1) is fixedly connected with a top cover through a support, the top cover is located on the top openings of the high-pressure flushing bin (22) and the drying bin (23), and the top cover has gaps with the top of the high-pressure flushing bin (22) and the drying bin (23).

3. The automated cleaning and drying integrated apparatus according to claim 1, wherein, The oil pump fixing mechanism (4) comprises a fixing frame (41), two placement grooves (42) for placing the front and rear ends of the fixing frame (41) are symmetrically formed on the front and rear sides of the ultrasonic cleaning pool (21), the high-pressure flushing bin (22), the drying bin (23) and the placement pool (24); the end of the fixing frame (41) is slidably connected with the placement groove (42); the fixing frame (41) is connected with the oil pump self-moving mechanism (5); and the bottom of the fixing frame (41) is provided with a profiling structure same as the oil pump for clamping the oil pump.

4. The automated cleaning and drying integrated apparatus according to claim 1, wherein, The warm air input assembly (71) comprises an air duct (711) and an air gun (712); the air duct (711) is fixedly installed on the top cover at the top of the drying bin (23); and the air gun (712) is installed in the drying bin (23) and connected with the oil pump pipeline alignment assembly (72); the air duct (711) is used for blowing and drying the outside of the oil pump; and the air gun (712) is used for blowing and drying the inside of the oil pump.

5. The automated cleaning and drying integrated apparatus according to claim 4, wherein, The oil pump pipeline alignment assembly (72) comprises a sliding plate (721), a ball (722) and a sliding groove (723); the front and rear ends of the drying bin (23) are provided with the sliding grooves (723), the two ends of the sliding plate (721) are respectively arranged in the two sliding grooves (723) and are limitedly connected in sliding mode, the middle bottom of the sliding plate (721) is fixedly connected with the air gun (712); the front and rear ends of the bottom of the sliding plate (721) are provided with the balls (722), and the balls (722) are connected with the oil pump self-moving mechanism (5).

6. The automated cleaning and drying integrated apparatus according to claim 3, wherein The oil pump self-moving mechanism (5) comprises sliding rails (51), sliding blocks (52), a driving assembly (53) and an oil pump moving assembly (54); the two sliding rails (51) are fixedly installed at the left and right ends of the top of the base (1); the two sliding rails (51) are slidably connected with the sliding blocks (52); the top of the two sliding blocks (52) is connected with the driving assembly (53); the base (1) and the oil pump moving assembly (54) are connected with the driving assembly (53); the fixed frame (41) is connected with the oil pump moving assembly (54).

7. The automated cleaning and drying integrated apparatus according to claim 6, wherein The driving assembly (53) comprises horizontal moving air cylinders (531) and vertical moving air cylinders (532), the horizontal moving air cylinder (531) is fixedly connected with the top left end of the base (1), and the driving end of the horizontal moving air cylinder (531) is fixedly connected with the left sliding block (52); the top of the two sliding blocks (52) is fixedly connected with the vertical moving air cylinders (532), and the driving ends of the two vertical moving air cylinders (532) are connected with the two ends of the oil pump moving assembly (54).

8. The automated cleaning and drying integrated apparatus according to claim 6, wherein, The oil pump moving assembly (54) comprises a moving frame (541); the driving ends of the two vertical moving air cylinders (532) are fixedly connected with the bottom of the moving frame (541); a plurality of positioning grooves (542) are symmetrically formed on the top of the moving frame (541), and the front and rear positioning grooves (542) are respectively used for placing the front and rear ends of the fixed frame (41); the top of the moving frame (541) is abutted and then rollingly connected with the ball (722).

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