Liquid chemical filling equipment

Abstract

The invention relates to the technical field of chemical filling, and discloses liquid chemical filling equipment which comprises a filling machine base, a fixing frame is fixedly connected to the top face of the filling machine base, a liquid storage tank is fixedly connected to the lower surface of the top of the fixing frame, and a liquid conveying pipe is fixedly connected to the front side face of the liquid storage tank. The bottom face of the filling machine base is fixedly connected with trundles, the front side face of the filling machine base is fixedly connected with a containing box, liquid chemicals are received by a filter plate after being splashed due to vibration of the device, then the liquid chemicals flow into the containing box to be recycled, waste of the liquid chemicals is avoided, the liquid chemicals are pushed into an inclined groove frame through a push plate, and therefore the liquid chemicals can be recycled. The liquid chemicals flow out of the containing box through the inclined face of the inclined groove frame to be recycled in the next step, the containing box can continuously recycle the liquid chemicals, the push plate drives the shovel plate to slide, resistance is reduced after liquid touches the inclined face of the shovel plate, and therefore the liquid chemicals can be recycled and discharged more rapidly.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical filling, and particularly to a liquid chemical filling device. Background Art

[0002] Liquid chemical filling devices are filling machines used for filling various chemical solutions, liquid reagents, and industrial chemicals. There are a wide variety of existing filling devices. When large quantities of liquid chemicals need to be filled, pipeline-style filling is usually adopted, while for some small-scale filling, single-unit vertical filling devices are used. However, the existing vertical filling devices are not as stable as pipeline-style filling devices during use, which easily leads to liquid leakage, resulting in waste and affecting the filling efficiency at the same time.

[0003] The patent with the patent number CN202122119648.9 discloses a liquid vertical filling device. The structure of this patent is compact, the operation is simple and convenient, and the practicability is strong. By setting a height adjustment mechanism, the placement board of the device can be adjusted in height according to the actual size of the container during use, thereby improving the use effect of the device. At the same time, by setting a stirring mechanism, the stirring effect on the liquid can be increased, enabling the liquids to be fully mixed, which is beneficial for actual use.

[0004] Although this patent solves the above problems, there are still problems of instability during filling and easy liquid leakage. Therefore, a liquid chemical filling device is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a liquid chemical filling device for the deficiencies in the above-mentioned prior art.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A liquid chemical filling device includes a filling machine base. The top surface of the filling machine base is fixedly connected with a fixed frame. The bottom surface of the top of the fixed frame is fixedly connected with a liquid storage tank. The front side of the liquid storage tank is fixedly connected with an infusion pipe. The bottom surface of the filling machine base is fixedly connected with casters. The front side of the filling machine base is fixedly connected with a placement box. The inner surface of the top of the placement box is fixedly connected with a filter plate. The placement box is fixedly connected with an inclined chute frame below. The right side of the placement box is fixedly connected with an electric push rod. The left end of the electric push rod is fixedly connected with a push plate. The left side of the push plate is fixedly connected with a shovel plate. The bottom surface of the inner wall of the placement box is fixedly connected with a limit slide rail. A positioning device for fixing the tank body is arranged on the front side of the filling machine base. A support device for making the device more stable and reducing vibration during filling is arranged inside the filling machine base. The electric push rod slides through the right side of the placement box. The push plate is slidably connected with the inner surface of the placement box. The shovel plate is slidably connected with the inner surface of the placement box. The push plate is slidably connected with the outer surface of the limit slide rail. The shovel plate is slidably connected with the outer surface of the limit slide rail. Place the tank body on the filter plate, start the filling machine base, and the filling machine base controls the one-way valve at the bottom end of the liquid storage tank to open. The liquid chemical in the liquid storage tank flows into the infusion pipe and then flows from the infusion pipe into the tank body to complete filling. When the device vibrates during filling and the liquid chemical spills, it is caught by the filter plate and then flows into the placement box for recycling. Start the electric push rod, and the electric push rod pushes the push plate to slide in the placement box to push the liquid chemical into the inclined chute frame, and then flows out of the placement box through the inclined surface of the inclined chute frame for the next step of recycling. The push plate drives the shovel plate to slide, and the resistance of the liquid decreases when it touches the inclined surface of the shovel plate.

[0007] Preferably, the positioning device includes a liquid baffle, a clamping block, and a sliding plate. The sliding plate slidably penetrates through the front and rear sides of the placement box. The liquid baffle is fixedly connected to one side of the sliding plate that penetrates out of the placement box. The clamping block is fixedly connected to the side of the liquid baffle close to the placement box. The positioning device further includes a clamping plate, an inclined groove sliding plate, a pushing frame, and a pushing shaft. The clamping plate is fixedly connected to both sides of the inner wall of the placement box. The inclined groove sliding plate is fixedly connected to the lower surface of the sliding plate. The pushing frame is fixedly connected to the left side surface of the push plate. The pushing shaft is fixedly connected to the upper surface of the pushing frame. The pushing shaft is slidably connected to the inner surface of the inclined groove sliding plate. The inclined groove sliding plate slidably penetrates through the front and rear sides of the placement box. After placing the tank body on the filter plate, when the tank body or the device shakes during filling, causing the liquid to splash in all directions, the liquid is blocked by the liquid baffle and then flows into the placement box along the liquid baffle. During filling, the tank body is placed between the front and rear clamping blocks, and the clamping blocks can clamp the tank body. When the push plate moves to the left, it drives the pushing frame and the pushing shaft to move to the left. The pushing shaft, through the guidance of the inclined groove sliding plate, pushes the two mirror-image inclined groove sliding plates arranged front and back to the front and back sides respectively. The inclined groove sliding plate drives the front and rear sliding plates to move to the front and back sides respectively. The sliding plate drives the liquid baffle and the clamping block to separate from the tank body. At this time, the filled tank body can be taken out, and then the tank body to be filled is placed on the filter plate. The push plate moves to the right, driving the front and rear inclined groove sliding plates and the sliding plates to approach each other, thereby driving the liquid baffle and the clamping block to approach each other to clamp the tank body again, thus realizing automatic loosening and clamping of the tank body, and when the clamping blocks approach each other, they can clamp the tank body according to the diameter of the tank body.

[0008] Preferably, the supporting device comprises a storage frame, a supporting plate, and a friction plate, wherein the storage frame is fixedly connected to both sides of the inner wall of the filling machine seat, the supporting plate is hinged on the inner surface of the storage frame, and the friction plate is hinged on the top of the supporting plate, and the supporting device also comprises a locking frame, a locking block, a toggle member, a slide frame, and an L-shaped pushing plate, wherein the locking frame is fixedly connected to one side of the supporting plate, the locking block is slidably connected to the inner surface of the locking frame, the toggle member is fixedly connected to one side of the sliding block, the slide frame is fixedly connected to the rear side of the storage frame, and the L-shaped pushing plate is fixedly connected to the rear side of the liquid baffle plate, a slide groove is provided on one side of the storage frame, and the toggle member is slidably connected to the inner surface of the slide groove, the locking block is slidably connected to the inner surface of the slide groove frame, a spring is arranged between the inner surface of the slide groove frame and the locking block, and the supporting plate and the storage frame are hinged The torsion spring is arranged at the support plate, and when the device is filling, the support plate is rotated so that the top of the support plate is close to the ground and the friction plate is in contact with the ground. When the device vibrates during operation, the friction between the friction plate and the ground reduces the vibration amplitude, and the liquid baffle plate located at the rear side of the placement box moves backward, drives the L-shaped push plate to move backward, and the L-shaped push plate drives the toggle piece to move backward, and the toggle piece drives the locking block to slide backward and disengage from the locking frame. At this time, the support plate loses its lock, and the torsion spring at the hinged connection with the storage frame drives the support plate to rotate and open to both sides of the filling machine base. When the filling is completed, the support plate is lifted when the L-shaped push plate is against the toggle piece, and then the L-shaped push plate moves forward, and the toggle piece loses its resistance. At this time, the spring between the locking block and the slide frame pushes the locking block out, so that the locking block is inserted into the locking frame, thereby locking the support plate and storing it in the storage frame.

[0009] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The liquid chemical filling equipment vibrates during filling, causing the liquid chemicals to spill and be caught by the filter plate, and then flow into the placement box for recovery, avoiding the waste of liquid chemicals. The push plate pushes the liquid chemicals into the chute frame, and the liquid chemicals flow out of the placement box through the inclined surface of the chute frame for the next recovery, so that the placement box can continuously recover the liquid chemicals. The push plate drives the shovel plate to slide, and the resistance of the liquid is reduced after it hits the inclined surface of the shovel plate, so that the liquid chemicals can be recovered and discharged more quickly.

[0010] 2. For the liquid chemical filling equipment, when the tank or device shakes during filling and causes liquid to splash around, the liquid is blocked by the liquid baffle plate and then flows into the placement box along the liquid baffle plate, avoiding liquid chemicals from splashing out of the device and wasting them, and also avoiding them from splashing onto the workers and causing harm. The clamping block can clamp the tank, making the tank more stable during filling, thereby reducing liquid splashing. The clamping block can automatically loosen and clamp the tank, and when the clamping blocks are close to each other, they can clamp the tank according to the diameter of the tank, automatically adjusting the clamping range, and improving the applicability of the device.

[0011] 3. In the liquid chemical filling equipment, the friction plate contacts the ground, which increases the support area of ​​the device and makes the device more stable. When the device vibrates during operation, the friction between the friction plate and the ground reduces the vibration amplitude, further improving the stability of the device. The spring between the locking block and the slide frame pushes the locking block out, inserts the locking block into the locking frame, and locks the support plate. The support plate is stored in the storage frame, which makes it easy to move the filling machine base and improves the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the rear side stereoscopic structure of the recovery structure of the present invention; Figure 4 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the positioning device of the present invention; Figure 5 It is a schematic diagram of the bottom three-dimensional structure of the transmission telescopic structure of the positioning device of the present invention; Figure 6 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the support device of the present invention; Figure 7 It is a schematic diagram of a rear side cross-sectional three-dimensional structure of a partial structure of a supporting device of the present invention; Figure 8 It is a schematic diagram of the rear side stereoscopic structure of the locking structure of the support device of the present invention.

[0013] In the figure: 1. filling machine base; 2. fixing frame; 3. liquid storage tank; 4. infusion tube; 5. casters; 6. placement box; 61. filter plate; 62. chute frame; 63. electric push rod; 64. push plate; 65. shovel plate; 66. limit slide rail; 7. positioning device; 71. liquid baffle plate; 72. clamping block; 73. sliding plate; 74. card plate; 75. chute slide plate; 76. pushing frame; 77. pushing shaft; 8. supporting device; 81. storage frame; 82. supporting plate; 83. friction plate; 84. locking frame; 85. locking block; 86. toggle member; 87. chute frame; 88. L-shaped pushing plate. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figures 1 - 8, an embodiment of the present invention is: a liquid chemical filling device, including a filling machine base 1, a fixing frame 2 is fixedly connected to the top surface of the filling machine base 1, a liquid storage tank 3 is fixedly connected to the lower surface of the top of the fixing frame 2, an infusion pipe 4 is fixedly connected to the front side of the liquid storage tank 3, a caster 5 is fixedly connected to the bottom surface of the filling machine base 1, a placement box 6 is fixedly connected to the front side of the filling machine base 1, a filter plate 61 is fixedly connected to the inner surface of the top of the placement box 6, an inclined chute frame 62 is fixedly connected to the lower part of the placement box 6, an electric push rod 63 is fixedly connected to the right side of the placement box 6, a push plate 64 is fixedly connected to the left end of the electric push rod 63, a shovel plate 65 is fixedly connected to the left side surface of the push plate 64, and a limiting slide rail 66 is fixedly connected to the bottom surface of the inner wall of the placement box 6. During filling, when the device vibrates and the liquid chemical splashes, it is caught by the filter plate 61 and then flows into the placement box 6 for recycling, avoiding waste of the liquid chemical. A positioning device 7 for fixing the tank body is arranged on the front side of the filling machine base 1, and a supporting device 8 for making the device more stable and reducing vibration during filling is arranged inside the filling machine base 1. The electric push rod 63 slides through the right side of the placement box 6, the push plate 64 is slidably connected to the inner surface of the placement box 6, the shovel plate 65 is slidably connected to the inner surface of the placement box 6, the push plate 64 is slidably connected to the outer surface of the limiting slide rail 66, and the shovel plate 65 is slidably connected to the outer surface of the limiting slide rail 66. The push plate 64 pushes the liquid chemical into the inclined chute frame 62, and the liquid chemical flows out of the placement box 6 through the inclined surface of the inclined chute frame 62 for the next step of recycling, enabling the placement box 6 to continuously recycle the liquid chemical. The push plate 64 drives the shovel plate 65 to slide, and the resistance of the liquid decreases when it hits the inclined surface of the shovel plate 65, so that the liquid chemical can be recycled and discharged more quickly.

[0016] Working principle: Place the tank body on the filter plate 61, start the filling machine base 1, the filling machine base 1 controls the one-way valve at the bottom end of the liquid storage tank 3 to open, the liquid chemical in the liquid storage tank 3 flows into the infusion pipe 4, and then flows from the infusion pipe 4 into the tank body to complete filling. During filling, when the device vibrates and the liquid chemical splashes, it is caught by the filter plate 61 and then flows into the placement box 6 for recycling, avoiding waste of the liquid chemical. Start the electric push rod 63, the electric push rod 63 pushes the push plate 64 to slide in the placement box 6 to push the liquid chemical into the inclined chute frame 62, and then flows out of the placement box 6 through the inclined surface of the inclined chute frame 62 for the next step of recycling. At the same time, the placement box 6 can continuously recycle the liquid chemical. The push plate 64 drives the shovel plate 65 to slide, and the resistance of the liquid decreases when it hits the inclined surface of the shovel plate 65, so that the liquid chemical can be recycled and discharged more quickly.

[0017] Please refer to Figures 1 - 8, on the basis of the above embodiments, in another embodiment of the present invention, the positioning device 7 includes a liquid baffle 71, a clamping block 72, and a sliding plate 73. The sliding plate 73 slidably penetrates through the front and rear sides of the placement box 6. The liquid baffle 71 is fixedly connected to the side of the sliding plate 73 that penetrates out of the placement box 6. The clamping block 72 is fixedly connected to the side of the liquid baffle 71 close to the placement box 6. When the tank body or the device shakes during filling, causing the liquid to splash around, the liquid is blocked by the liquid baffle 71 and then flows into the placement box 6 along the liquid baffle 71, avoiding the waste of liquid chemicals splashing outside the device and also avoiding the harm caused by splashing onto the staff. The positioning device 7 further includes a clamping plate 74, an inclined groove sliding plate 75, a pushing frame 76, and a pushing shaft 77. The clamping plate 74 is fixedly connected to both sides of the inner wall of the placement box 6. The inclined groove sliding plate 75 is fixedly connected to the lower surface of the sliding plate 73. The pushing frame 76 is fixedly connected to the left side surface of the push plate 64. The pushing shaft 77 is fixedly connected to the upper surface of the pushing frame 76. The pushing shaft 77 is slidably connected to the inner surface of the inclined groove sliding plate 75. The inclined groove sliding plate 75 slidably penetrates through the front and rear sides of the placement box 6. The clamping block 72 can clamp the tank body, making the tank body more stable during filling, thereby reducing the situation of liquid splashing. The clamping block 72 can automatically loosen and clamp the tank body, and when the clamping blocks 72 approach each other, they can clamp the tank body according to the diameter of the tank body, automatically adjusting the clamping range and improving the applicability of the device.

[0018] Working principle: After placing the tank body on the filter plate 61, when the tank body or the device shakes during filling, causing the liquid to splash around, the liquid is blocked by the liquid baffle 71 and then flows into the placement box 6 along the liquid baffle 71, avoiding the waste of liquid chemicals splashing outside the device and also avoiding the harm caused by splashing onto the staff. During filling, the tank body is placed between the front and rear clamping blocks 72. The clamping block 72 can clamp the tank body, making the tank body more stable during filling, thereby reducing the situation of liquid splashing. When the push plate 64 moves to the left, it drives the pushing frame 76 and the pushing shaft 77 to move to the left. The pushing shaft 77 pushes the two mirror-image inclined groove sliding plates 75 arranged front and back to the front and back sides respectively through the guidance of the inclined groove sliding plate 75. The inclined groove sliding plate 75 drives the front and rear sliding plates 73 to move to the front and back sides respectively. The sliding plate 73 drives the liquid baffle 71 and the clamping block 72 to separate from the tank body. At this time, the filled tank body can be taken out, and then the tank body to be filled is placed on the filter plate 61. The push plate 64 moves to the right, driving the front and rear inclined groove sliding plates 75 and the sliding plates 73 to approach each other, thereby driving the liquid baffle 71 and the clamping block 72 to approach each other and clamp the tank body again, thus realizing the automatic loosening and clamping of the tank body, and when the clamping blocks 72 approach each other, they can clamp the tank body according to the diameter of the tank body, automatically adjusting the clamping range and improving the applicability of the device.

[0019] Please refer to Figures 1 - 8On the basis of the above embodiment, in another embodiment of the present invention, the supporting device 8 includes a storage frame 81, a supporting plate 82, and a friction plate 83. The storage frame 81 is fixedly connected to both sides of the inner wall of the filling machine base 1, the supporting plate 82 is hinged on the inner surface of the storage frame 81, and the friction plate 83 is hinged on the top of the supporting plate 82. The friction plate 83 contacts the ground, which increases the supporting area of ​​the device and makes the device more stable. When the device vibrates during operation, the friction between the friction plate 83 and the ground reduces the vibration amplitude, further improving the stability of the device. The supporting device 8 also includes a locking frame 84, a locking block 85, a toggle member 86, a slide frame 87, and an L-shaped pushing plate 88. The locking frame 84 is fixedly connected to one side of the supporting plate 82, and the locking block 85 slides The locking block 85 is movably connected to the inner surface of the locking frame 84, the toggle member 86 is fixedly connected to one side of the sliding block, the slide groove frame 87 is fixedly connected to the rear side of the storage frame 81, the L-shaped pushing plate 88 is fixedly connected to the rear side of the liquid baffle plate 71, a slide groove is provided on one side of the storage frame 81, and the toggle member 86 is slidably connected to the inner surface of the slide groove, the locking block 85 is slidably connected to the inner surface of the slide groove frame 87, a spring is arranged between the inner surface of the slide groove frame 87 and the locking block 85, a torsion spring is arranged at the hinge of the support plate 82 and the storage frame 81, the spring between the locking block 85 and the slide groove frame 87 pushes the locking block 85 out, so that the locking block 85 is inserted into the locking frame 84, thereby locking the support plate 82 and storing it in the storage frame 81, which is convenient for moving the filling machine base 1 and improving the convenience of the device.

[0020] Working principle: When the device is filling, the support plate 82 is rotated so that the top of the support plate 82 is close to the ground, and the friction plate 83 is in contact with the ground, thereby increasing the support area of ​​the device and making the device more stable. When the device vibrates during operation, the friction between the friction plate 83 and the ground reduces the vibration amplitude, further improving the stability of the device. When the liquid retaining plate 71 located at the rear side of the placement box 6 moves backward, it drives the L-shaped push plate 88 to move backward, and the L-shaped push plate 88 drives the toggle member 86 to move backward, and the toggle member 86 drives the locking block 85 to slide backward and disengage from the locking frame 84. At this time, the support plate 82 is lost. When the filling machine is unlocked, the torsion spring at the hinge with the storage frame 81 drives the support plate 82 to rotate and open to both sides of the filling machine base 1, so that the device automatically pops up to enhance the stability of the device during filling. When the filling is completed, the support plate 82 is lifted when the L-shaped push plate 88 abuts against the toggle member 86, and then the L-shaped push plate 88 moves forward, and the toggle member 86 loses its resistance. At this time, the spring between the locking block 85 and the slide groove frame 87 pushes the locking block 85 out, so that the locking block 85 is inserted into the locking frame 84, thereby locking the support plate 82 and storing it in the storage frame 81, which is convenient for moving the filling machine base 1 and improving the convenience of the device.

[0021] The present invention provides a liquid chemical filling device. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by existing technologies.

Claims

1. A liquid chemical filling device, including a filling machine base, characterized in that: The top surface of the filling machine seat is fixedly connected with a fixing frame, the top lower surface of the fixing frame is fixedly connected with a liquid storage tank, the front side surface of the liquid storage tank is fixedly connected with a liquid infusion tube, the bottom surface of the filling machine seat is fixedly connected with a caster, the front side surface of the filling machine seat is fixedly connected with a placement box, the top inner surface of the placement box is fixedly connected with a filter plate, the lower part of the placement box is fixedly connected with an inclined slot frame, the right side of the placement box is fixedly connected with an electric push rod, the left end of the electric push rod is fixedly connected with a push plate, the left side of the push plate is fixedly connected with a shovel plate, and the bottom surface of the inner wall of the placement box is fixedly connected with a limited position slide rail; A positioning device for fixing the can body is arranged on the front side of the filling machine seat, and a supporting device for making the device more stable and reducing vibration during filling is arranged inside the filling machine seat.

2. The liquid chemical filling equipment according to claim 1, characterized in that: The electric push rod slides through the right side of the placement box, the push plate is slidably connected to the inner surface of the placement box, the shovel plate is slidably connected to the inner surface of the placement box, the push plate is slidably connected to the outer surface of the limiting slide rail, the shovel plate is slidably connected to the outer surface of the limiting slide rail, and a one-way valve is provided at the bottom of the liquid storage tank.

3. The liquid chemical filling equipment according to claim 2, characterized in that: The positioning device includes a liquid baffle plate, a clamping block, and a sliding plate. The sliding plate slides through the front and rear sides of the placement box, the liquid baffle plate is fixedly connected to the side of the sliding plate that passes through the placement box, and the clamping block is fixedly connected to the side of the liquid baffle plate close to the placement box.

4. The liquid chemical filling equipment according to claim 3, wherein: The positioning device also includes a card plate, an inclined slot slide, a pushing frame, and a pushing shaft. The card plate is fixedly connected to both sides of the inner wall of the placement box, the inclined slot slide is fixedly connected to the lower surface of the sliding plate, the pushing frame is fixedly connected to the left side of the pushing plate, and the pushing shaft is fixedly connected to the upper surface of the pushing frame.

5. A liquid chemical filling device according to claim 4, characterized in that: The driving shaft is slidably connected to the inner surface of the inclined slot slide, and the inclined slot slide slides through the front and rear sides of the placement box.

6. The liquid chemical filling equipment according to claim 5, characterized in that: The supporting device comprises a storage frame, a supporting plate and a friction plate. The storage frame is fixedly connected to both sides of the inner wall of the filling machine base, the supporting plate is hinged to the inner surface of the storage frame, and the friction plate is hinged to the top of the supporting plate.

7. A liquid chemical filling device according to claim 6, characterized in that: The supporting device also includes a locking frame, a locking block, a toggle member, a slide groove frame, and an L-shaped pushing plate. The locking frame is fixedly connected to one side of the supporting plate, the locking block is slidably connected to the inner surface of the locking frame, the toggle member is fixedly connected to one side of the sliding block, the slide groove frame is fixedly connected to the rear side of the storage frame, and the L-shaped pushing plate is fixedly connected to the rear side of the liquid baffle plate.

8. A liquid chemical filling device according to claim 7, characterized in that: A slide groove is provided on one side of the storage frame, and the toggle piece is slidably connected to the inner surface of the slide groove, the locking block is slidably connected to the inner surface of the slide groove frame, a spring is provided between the inner surface of the slide groove frame and the locking block, and a torsion spring is provided at the hinge of the support plate and the storage frame.

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