An anti-needle-sticking safety indwelling needle assembly device

Abstract

The present application relates to the field of indwelling needle assembly equipment, and particularly relates to a safe indwelling needle assembly equipment capable of preventing needle stick. The present application provides a safe indwelling needle assembly equipment capable of preventing needle stick and being automatically assembled. The safe indwelling needle assembly equipment capable of preventing needle stick comprises a base frame, a fence and a support, the base frame is connected with the fence at front and back parts, and the base frame is connected with the support at left and right parts, further comprising an auxiliary mechanism and a lifting mechanism, the auxiliary mechanism for limiting and assembling the indwelling needle and the needle cap is arranged between the upper ends of the supports, and the lifting mechanism for assembling the indwelling needle is arranged on the auxiliary mechanism. The multi-stage cylinder drives the connecting frame plate to move upwards, the connecting frame plate drives the upper top frame to move upwards, the needle cap is sleeved on the indwelling needle, the assembly of the indwelling needle is completed, the small push plate pushes the indwelling needle to automatically supplement under the action of the first reset spring, and the large push plate pushes the needle cap to automatically supplement under the action of the second reset spring.

Description

Technical Field

[0001] This invention relates to the field of indwelling needle assembly equipment, and more particularly to a needle-puncture-proof safety indwelling needle assembly equipment. Background Technology

[0002] The use of indwelling needles can reduce the pain and fear of repeated venipunctures in patients, facilitate medication administration in clinical settings, and reduce the workload of nurses, especially reducing the suffering of infants and young children. It is widely used in clinical practice. During the production and assembly of indwelling needles, a needle cap needs to be placed on the needle to protect it. Currently, most existing indwelling needle assembly processes have a low degree of automation, and many steps must be completed by workers with the aid of tooling. This high dependence on workers not only increases costs but also easily leads to defective products and reduces production efficiency.

[0003] The technical problem this patent aims to solve is how to design an automated assembly device for anti-needle-puncture safety indwelling needles. Summary of the Invention

[0004] In order to overcome the shortcomings of existing indwelling needle assembly processes, which have a low degree of automation and require workers to complete most processes with the aid of tooling, resulting in high dependence on workers, high costs, and easy production of defective products, thus reducing production efficiency, the technical problem of this invention is to provide an automated assembly device for anti-needle-puncture safety indwelling needles.

[0005] The technical implementation of the present invention is as follows: a needle-proof safety indwelling needle assembly device, comprising a base frame, a surrounding plate and a support column, the front and rear parts of the base frame are connected to the surrounding plate, the left and right parts of the base frame are connected to the support column, and it also includes an auxiliary mechanism and a lifting mechanism. An auxiliary mechanism is provided between the upper ends of the support column for limiting the indwelling needle and the needle cap and for replenishing materials during assembly. The auxiliary mechanism is provided with a lifting mechanism for assembling the indwelling needle.

[0006] Furthermore, the auxiliary mechanism includes a double-plate frame, a limiting plate, a small push plate, a first return spring, a large push plate, and a second return spring. The upper ends of the support columns are connected to the double-plate frame, and the upper end of the double-plate frame is connected to the limiting plate. Small push plates are slidably connected to both the left and right sides of the limiting plate, and each small push plate is connected to the limiting plate with a first return spring. Large push plates are slidably connected to both the left and right sides of the lower side of the double-plate frame, and each large push plate is connected to the double-plate frame with a second return spring.

[0007] Furthermore, the lifting mechanism includes a multi-stage cylinder, a connecting frame plate, and an upper top frame. The multi-stage cylinder is connected to the middle of the double-plate frame. The lower end of the telescopic rod of the multi-stage cylinder is connected to the connecting frame plate. The left and right sides of the rear side of the connecting frame plate are connected to the upper top frame for assembling the needle cap onto the indwelling needle. The upper top frame moves upward and passes through the double-plate frame.

[0008] Furthermore, it also includes a clamping mechanism for limiting the position of the indwelling needle. The clamping mechanism includes a winding frame, a connecting plate frame, a first limiting rod, a third return spring, a double ring frame, a connecting rope, and a slider. The winding frame is connected to the middle of the double plate frame, and the connecting plate frame is slidably connected to the middle of the double plate frame. The first limiting rod is slidably connected to the middle of the double plate frame. The first limiting rod is connected to the connecting plate frame. The upper part of the first limiting rod is connected to the double plate frame through a third return spring. The upper part of the connecting plate frame is connected to the double ring frame. The lower part of the double plate frame is slidably connected to the slider. When the connecting frame moves upward, it will contact the slider. The slider is connected to the bottom of the connecting plate frame through a connecting rope, and the connecting rope is wound around the winding frame.

[0009] Furthermore, it also includes a limiting and stabilizing mechanism for limiting the needle cap. The stabilizing mechanism includes an arc-shaped frame, a connecting frame, a limiting round rod, and a fourth return spring. The connecting frame is connected to the middle of the double plate frame, and the arc-shaped frame is connected between the connecting frames. The limiting round rod is slidably connected to both the front and rear sides of the arc-shaped frame, and the fourth return spring is connected between the limiting round rod and the arc-shaped frame.

[0010] Furthermore, it also includes a feeding mechanism for ejecting the assembled indwelling needle. The feeding mechanism includes a movable inclined plate, a second limiting rod, a fifth return spring, a pusher, a fixed plate, a sixth return spring, and a T-shaped rod. The movable inclined plate is slidably connected to the front side of the middle of the double-plate frame. When the connecting frame moves downward, it will contact the movable inclined plate. The second limiting rod is slidably connected to the front side of the middle of the double-plate frame. The second limiting rod is connected to the movable inclined plate. The fifth return spring is connected between the second limiting rod and the double-plate frame. The fixed plate is connected to the middle of the limiting plate. The T-shaped rod is slidably connected to the fixed plate. When the movable inclined plate moves downward, it will contact the T-shaped rod. The pusher is connected to the T-shaped rod. The sixth return spring is connected between the pusher and the fixed plate. The sixth return spring is sleeved on the T-shaped rod.

[0011] Furthermore, the upper part of the movable ramp is tilted.

[0012] Furthermore, it also includes a protective mechanism for cleaning the assembly area. The protective mechanism includes a bellows, a movable perforated plate, a third limiting rod, and an insert plate. Bellows are connected to the front left and right sides of the double-plate frame and the limiting plate. Movable perforated plates are slidably connected to the front of the bellows. The lower part of the movable perforated plate is connected to the third limiting rod, which is slidably connected to the bellows. An insert plate is inserted into the lower part of the bellows. Insert holes are evenly spaced on the lower part of the movable perforated plate, and the insert plate is inserted into the corresponding insertion hole of the movable perforated plate.

[0013] This invention has the following advantages: A multi-stage cylinder drives the connecting frame plate to move upwards, which in turn moves the upper frame upwards to push the needle cap onto the indwelling needle, completing the assembly of the indwelling needle. Under the action of the first return spring, the small push plate pushes the indwelling needle for automatic replenishment, and under the action of the second return spring, the large push plate pushes the needle cap for automatic replenishment. The double-ring frame moves downwards to contact the upper end of the indwelling needle, blocking it and preventing it from being pushed upwards during assembly. The limiting rod limits the needle cap, preventing it from shaking and becoming difficult to align with the indwelling needle. The pusher moves backwards to push out the assembled indwelling needle, facilitating its collection. The size of the air inlet of the bellows can be adjusted by manually moving the moving orifice plate downwards, thereby adjusting the bellows' exhaust volume. The insert plate limits the moving orifice plate, and the bellows cleans the assembly area. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the auxiliary mechanism of the present invention.

[0016] Figure 3 This is a partial three-dimensional structural diagram of the auxiliary mechanism of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0018] Figure 5 This is a partial three-dimensional structural diagram of the lifting mechanism of the present invention.

[0019] Figure 6 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0020] Figure 7 This is a partial three-dimensional structural diagram of the clamping mechanism of the present invention.

[0021] Figure 8 This is a three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0022] Figure 9 This is a first partial three-dimensional structural diagram of the stabilizing mechanism of the present invention.

[0023] Figure 10 This is a schematic diagram of the second partial three-dimensional structure of the stabilizing mechanism of the present invention.

[0024] Figure 11 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0025] Figure 12 This is a partial three-dimensional structural diagram of the feeding mechanism of the present invention.

[0026] Figure 13 This is a partial three-dimensional structural diagram of the feeding mechanism of the present invention.

[0027] Figure 14 This is a three-dimensional structural diagram of the protective mechanism of the present invention.

[0028] Figure 15 This is a first partial three-dimensional structural diagram of the protective mechanism of the present invention.

[0029] Figure 16 This is a schematic diagram of the second partial three-dimensional structure of the protective mechanism of the present invention.

[0030] The meanings of the reference numerals in the diagram are as follows: 1: Base frame, 2: Enclosure plate, 3: Support column, 4: Auxiliary mechanism, 41: Double plate frame, 42: Limiting plate, 43: Small push plate, 44: First return spring, 45: Large push plate, 46: Second return spring, 5: Lifting mechanism, 51: Multi-stage cylinder, 52: Connecting frame plate, 53: Top frame, 6: Clamping mechanism, 61: Winding frame, 62: Connecting plate frame, 63: First limiting rod, 64: Third return spring, 65: Double... 66: Ring frame; 67: Connecting rope; 7: Slider; 7: Stabilizing mechanism; 71: Arc frame; 72: Connecting frame; 73: Limiting round rod; 74: Fourth return spring; 8: Feeding mechanism; 81: Moving inclined plate; 82: Second limiting rod; 83: Fifth return spring; 84: Pusher; 85: Fixed plate; 86: Sixth return spring; 87: T-shaped rod; 9: Protective mechanism; 91: Bellows; 92: Moving perforated plate; 93: Third limiting rod; 94: Insert plate. Detailed Implementation

[0031] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] Example 1

[0033] A needle-puncture-proof safety indwelling needle assembly device, referring to Figures 1-5 It includes a base frame 1, a surrounding plate 2, a support column 3, an auxiliary mechanism 4, and a lifting mechanism 5. The base frame 1 is equipped with a surrounding plate 2 at both the front and rear. The base frame 1 is equipped with two support columns 3 at both the left and right sides. An auxiliary mechanism 4 is provided between the upper ends of the four support columns 3. The auxiliary mechanism 4 is used to limit the position of the indwelling needle and the needle cap and can replenish materials during assembly. The auxiliary mechanism 4 is equipped with a lifting mechanism 5, which is used to assemble the indwelling needle.

[0034] Reference Figures 2-3 The auxiliary mechanism 4 includes a double plate frame 41, a limiting plate 42, a small push plate 43, a first return spring 44, a large push plate 45, and a second return spring 46. The double plate frame 41 is installed between the upper ends of the four support columns 3. The limiting plate 42 is installed at the upper end of the double plate frame 41. The small push plate 43 is slidably connected to both the left and right sides of the limiting plate 42. The first return spring 44 is connected between the small push plate 43 and the limiting plate 42. The large push plate 45 is slidably connected to both the left and right sides of the lower side of the double plate frame 41. The two second return springs 46 are connected between the large push plate 45 and the double plate frame 41.

[0035] Reference Figures 4-5 The lifting mechanism 5 includes a multi-stage cylinder 51, a connecting frame plate 52, and an upper top frame 53. The multi-stage cylinder 51 is installed in the middle of the double plate frame 41. The lower end of the telescopic rod of the multi-stage cylinder 51 is equipped with a connecting frame plate 52. The upper top frame 53 is installed on both the left and right sides of the rear side of the connecting frame plate 52. The upper top frame 53 is used to assemble the needle cap onto the indwelling needle. When the upper top frame 53 moves upward, it will pass through the double plate frame 41.

[0036] In use, manually move the small push plate 43 outward, stretching the first return spring 44, and place the indwelling needle horizontally onto the limiting plate 42. Then release the small push plate 43, which, under the action of the first return spring 44, presses down on the indwelling needle. Next, activate the multi-stage cylinder 51, controlling its extension rod to move the connecting frame plate 52 downward. The connecting frame plate 52 then moves the upper top frame 53 downward, separating it from the double-plate frame 41. Then close the multi-stage cylinder 51. Next, manually move the large push plate 45 outward, stretching the second return spring 46, and place the needle cap horizontally onto the double-plate frame 41, with the needle cap directly below the indwelling needle. Then release the large push plate 45, which, under the action of the second return spring 46, presses down on the needle cap. Start the multi-stage cylinder 51, control the telescopic rod of the multi-stage cylinder 51 to drive the connecting frame plate 52 to move upward. The connecting frame plate 52 drives the upper top frame 53 to cover the two needle caps inside the double plate frame 41 and pushes the needle caps to move upward, so that the needle caps are covered on the indwelling needle, completing the assembly of the indwelling needle. The assembled indwelling needle can then be taken out. Then control the telescopic rod of the multi-stage cylinder 51 to drive the connecting frame plate 52 to move downward. The connecting frame plate 52 drives the upper top frame 53 to move downward. Under the reset action of the first reset spring 44, the small push plate 43 pushes the indwelling needle for automatic replenishment. Under the reset action of the second reset spring 46, the large push plate 45 pushes the needle cap for automatic replenishment. Repeat the above operation to assemble continuously. After assembly is completed, turn off the multi-stage cylinder 51.

[0037] Example 2

[0038] Based on Example 1, referring to Figure 1 , Figure 6and Figure 7 It also includes a clamping mechanism 6, which includes a winding frame 61, a connecting plate frame 62, a first limiting rod 63, a third return spring 64, a double ring frame 65, a connecting rope 66, and a slider 67. Two winding frames 61 are installed in the middle of the double plate frame 41. The connecting plate frame 62 is slidably connected to the middle of the double plate frame 41. Two first limiting rods 63 are slidably connected to the middle of the double plate frame 41. The first limiting rods 63 are all connected to the connecting plate frame 62. The upper part of each first limiting rod 63 is connected to the double plate frame 41 with a third return spring 64. The double ring frame 65 is installed on the upper part of the connecting plate frame 62. Two sliders 67 are slidably connected to the lower part of the double plate frame 41. When the connecting frame plate 52 moves upward, it will contact the sliders 67. The sliders 67 are connected to the bottom of the connecting plate frame 62 with a connecting rope 66. The connecting rope 66 is wound on the winding frame 61.

[0039] When the connecting frame plate 52 moves upward and contacts the slider 67, it pushes the slider 67 upward. The slider 67 pulls the connecting plate frame 62 downward through the connecting rope 66. The connecting plate frame 62 drives the first limiting rod 63 and the double ring frame 65 downward. The third reset spring 64 is compressed. The double ring frame 65 moves downward and contacts the upper end of the indwelling needle, blocking the indwelling needle and preventing it from being pushed upward during assembly. When the connecting frame plate 52 moves downward, it drives the first limiting rod 63 to move upward and reset under the reset action of the third reset spring 64. The first limiting rod 63 drives the double ring frame 65 to move upward and reset through the connecting plate frame 62. The connecting plate frame 62 pulls the slider 67 downward and reset through the connecting rope 66.

[0040] Reference Figure 1 , Figure 8 , Figure 9 and Figure 10 It also includes a limiting stabilizing mechanism 7, which includes an arc frame 71, a connecting frame 72, a limiting round rod 73 and a fourth return spring 74. Three connecting frames 72 are installed in the middle of the double plate frame 41, and an arc frame 71 is installed between the three connecting frames 72. Four limiting round rods 73 are slidably connected to the front and rear sides of the arc frame 71, and the fourth return spring 74 is connected between each limiting round rod 73 and the arc frame 71.

[0041] When the top frame 53 pushes the needle cap upward, the needle cap contacts the inner end of the limiting rod 73. The needle cap squeezes the limiting rod 73 outward, and the fourth return spring 74 is stretched. Under the action of the fourth return spring 74, the limiting rod 73 abuts against the needle cap, thereby limiting the needle cap and preventing the needle cap from shaking and making it difficult to align with the indwelling needle. When the needle cap separates from the limiting rod 73, the limiting rod 73 moves inward to reset under the reset action of the fourth return spring 74.

[0042] Reference Figure 1 , Figure 11 , Figure 12 and Figure 13 It also includes a feeding mechanism 8, which includes a movable inclined plate 81, a second limiting rod 82, a fifth return spring 83, a pusher 84, a fixed plate 85, a sixth return spring 86, and a T-shaped rod 87. The movable inclined plate 81 is slidably connected to the front side of the middle of the double plate frame 41. When the connecting frame plate 52 moves downward, it will contact the movable inclined plate 81. Two second limiting rods 82 are slidably connected to the front side of the middle of the double plate frame 41. Both second limiting rods 82 are connected to the movable inclined plate 81. The second limiting rods 82 are connected to the double plate frame 41 by a fifth return spring 83. A fixed plate 85 is installed in the middle of the limiting plate 42. A T-shaped rod 87 is slidably connected to the fixed plate 85. When the movable inclined plate 81 moves downward, it will contact the T-shaped rod 87. A pusher 84 is installed on the T-shaped rod 87. The pusher 84 is connected to the fixed plate 85 by a sixth return spring 86. The sixth return spring 86 is sleeved on the T-shaped rod 87.

[0043] When the connecting frame plate 52 moves downward and contacts the moving inclined plate 81, it pushes the moving inclined plate 81 downward. The moving inclined plate 81 drives the second limiting rod 82 downward, compresses the fifth return spring 83, and the upper part of the moving inclined plate 81 presses the T-shaped rod 87 backward. The T-shaped rod 87 drives the pusher 84 backward, and the sixth return spring 86 is stretched. The pusher 84 moves backward to push out the assembled indwelling needle, which facilitates the collection of the assembled indwelling needle. When the connecting frame plate 52 moves upward, the fifth return spring 83 resets the moving inclined plate 81 and the second limiting rod 82 upward and resets them. Then, the sixth return spring 86 resets the pusher 84 and the T-shaped rod 87 forward and reset them.

[0044] Reference Figure 1 , Figure 14 , Figure 15 and Figure 16 It also includes a protective mechanism 9, which includes a bellows 91, a movable perforated plate 92, a third limiting rod 93, and an insert plate 94. Bellows 91 are installed on the left and right sides of the front side between the double plate frame 41 and the limiting plate 42. The movable perforated plate 92 is slidably connected to the front side of the bellows 91. Two third limiting rods 93 are installed on the lower part of the two movable perforated plates 92. The third limiting rods 93 are slidably connected to the bellows 91. An insert plate 94 is inserted into the lower part of the bellows 91. Insert holes are evenly spaced on the lower part of the movable perforated plate 92. The insert plate 94 is inserted into the corresponding insertion hole of the movable perforated plate 92.

[0045] Remove the insert plate 94 and manually move the moving orifice plate 92 upward. The moving orifice plate 92 drives the third limit rod 93 to move upward. In this way, the size of the air inlet of the air box 91 can be adjusted, thereby adjusting the air volume of the air box 91. After adjustment, reset the insert plate 94 to limit the moving orifice plate 92, and clean the assembly area through the air box 91.

[0046] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A kind of anti-needle safety indwelling needle assembly equipment, including chassis (1), fence (2) and support (3), the front and rear of chassis (1) are connected with fence (2), the left and right of chassis (1) are connected with support (3), it is characterized in that, Also include auxiliary mechanism (4) and rising mechanism (5), the upper end between the support (3) is equipped with auxiliary mechanism (4) for limiting and assembling indwelling needle and needle cap, the upper end between the support (3) is equipped with rising mechanism (5) for assembling indwelling needle; Auxiliary mechanism (4) includes double board frame (41), limiting plate (42), small push plate (43), first reset spring (44), big push plate (45) and second reset spring (46), the upper end between the support (3) is connected with double board frame (41), the upper end of double board frame (41) is connected with limiting plate (42), the left and right two parts of limiting plate (42) are slidably connected with small push plate (43), the first reset spring (44) is connected between small push plate (43) and limiting plate (42), the left and right two parts of double board frame (41) are slidably connected with big push plate (45), the second reset spring (46) is connected between big push plate (45) and double board frame (41); Rising mechanism (5) includes multi-stage cylinder (51), connecting frame plate (52) and upper top frame (53), the middle part of double board frame (41) is connected with multi-stage cylinder (51), the lower end of the telescopic rod of multi-stage cylinder (51) is connected with connecting frame plate (52), the left and right two parts of the rear side of connecting frame plate (52) are connected with upper top frame (53) for assembling needle cap to indwelling needle, the upper top frame (53) moves upward and will pass through double board frame (41); Also include clamping mechanism (6) for limiting indwelling needle, clamping mechanism (6) includes winding frame (61), connecting plate frame (62), first limiting rod (63), third reset spring (64), double ring frame (65), connecting rope (66) and sliding block (67), the middle part of double board frame (41) is connected with winding frame (61), the middle part of double board frame (41) is slidably connected with connecting plate frame (62), the middle part of double board frame (41) is slidably connected with first limiting rod (63), the first limiting rod (63) is connected with connecting plate frame (62), the third reset spring (64) is connected between the upper part of first limiting rod (63) and double board frame (41), the upper part of connecting plate frame (62) is connected with double ring frame (65), the middle and lower part of double board frame (41) is slidably connected with sliding block (67), the upward movement of connecting frame plate (52) will contact with sliding block (67), the connecting rope (66) is connected between sliding block (67) and the bottom of connecting plate frame (62), and the connecting rope (66) is wound on winding frame (61).

2. An assembly for a needle guard safety device according to claim 1, wherein: Also include limiting and stabilizing mechanism (7) for limiting needle cap, stabilizing mechanism (7) includes arc frame (71), connecting frame (72), limiting circular rod (73) and fourth reset spring (74), the middle part of double board frame (41) is connected with connecting frame (72), connecting frame (72) is connected with arc frame (71), the left and right sides of arc frame (71) are slidably connected with limiting circular rod (73), the fourth reset spring (74) is connected between limiting circular rod (73) and arc frame (71).

3. An assembly for a needle guard safety device according to claim 2, wherein: Also include a discharge mechanism (8) for the assembled indwelling needle, the discharge mechanism (8) comprises moving inclined plate (81), second limit rod (82), fifth reset spring (83), pusher frame (84), fixed plate (85), sixth reset spring (86) and T-shaped rod (87), the front side of the middle part of the double plate frame (41) is slidably connected with the moving inclined plate (81), the connecting frame plate (52) moves downward and contacts with the moving inclined plate (81), the front side of the middle part of the double plate frame (41) is slidably connected with the second limit rod (82), the second limit rod (82) is connected with the moving inclined plate (81), the fifth reset spring (83) is connected between the second limit rod (82) and the double plate frame (41), the middle part of the limiting plate (42) is connected with the fixed plate (85), the fixed plate (85) is slidably connected with the T-shaped rod (87), the moving inclined plate (81) moves downward and contacts with the T-shaped rod (87), the T-shaped rod (87) is connected with the pusher frame (84), the sixth reset spring (86) is connected between the pusher frame (84) and the fixed plate (85), the sixth reset spring (86) is sleeved on the T-shaped rod (87).

4. An assembly for a needle guard according to claim 3, wherein: The upper part of the moving inclined plate (81) is inclined.

5. An assembly for a needle guard according to claim 4, wherein: Also include a protection mechanism (9) for cleaning the assembly area, the protection mechanism (9) comprises wind box (91), moving hole plate (92), third limit rod (93) and plug-in plate (94), the front side of the double plate frame (41) and the limiting plate (42) is connected with the wind box (91) on both sides, the front side of the wind box (91) is slidably connected with the moving hole plate (92), the lower part of the moving hole plate (92) is connected with the third limit rod (93), the third limit rod (93) is slidably connected with the wind box (91), the lower part of the wind box (91) is inserted with the plug-in plate (94), the lower part of the moving hole plate (92) is uniformly spaced with the insertion hole, the plug-in plate (94) is inserted into the corresponding insertion hole of the moving hole plate (92).

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