Plastic bottle piece color sorting mechanism

Abstract

The utility model discloses a plastic bottle piece color sorting mechanism, and relates to the technical field of plastic bottle piece recovery, the plastic bottle piece color sorting mechanism comprises a base, the upper surface of the base is fixedly connected with two connecting plates, the sides, close to each other, of the two connecting plates are fixedly connected with a feed inlet, and the sides, close to each other, of the two connecting plates are provided with a screening mechanism; the screening mechanism comprises a first mounting table, the first mounting table is fixedly connected to the side, close to the connecting plate, of the base, a second mounting table is fixedly connected to the side, close to the connecting plate, of the base, and a plurality of front sorting lenses are fixedly connected to the inner wall of the first mounting table; and a plurality of rear sorting lenses are fixedly connected to the inner wall of the second mounting table. According to the plastic bottle piece color sorting mechanism, the problems that the plastic bottle piece color sorting mechanism often blocks the sight of workers, so that it is difficult to guarantee that a collecting box is replaced in time, and the collecting work of plastic bottle pieces is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle flake recycling, in particular to a plastic bottle flake color sorting mechanism. Background Art

[0002] Plastic bottle flakes usually refer to a kind of raw material that is sliced ​​from recycled plastics. It can be used to produce various plastic products. After purchasing the plastic bottle flakes, they first need to be cleaned and dried, and then they need to be color sorted so that they can be processed more effectively.

[0003] After washing and drying the plastic bottle flakes, a plastic bottle flake color sorting mechanism is needed to sort the plastic bottle flakes by color. The color sorting of the plastic bottle flakes usually includes the following steps, namely feeding, sorting and collecting. In the process of collecting the sorted plastic bottle flakes, the prior art usually adopts manual observation of the collection quantity to replace the collection box for collecting the plastic bottle flakes. Since the color sorting mechanism for the plastic bottle flakes often blocks the sight of the staff, it is difficult to ensure that the collection box is replaced in time, which affects the collection of the plastic bottle flakes.

[0004] For this purpose, we propose a plastic bottle flake color sorting mechanism. Utility Model Content

[0005] The utility model aims to provide a color sorting mechanism for plastic bottle flakes to solve the problem that the color sorting mechanism for plastic bottle flakes often blocks the sight of the staff, making it difficult to ensure timely replacement of the collection box, thus affecting the collection of plastic bottle flakes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a color sorting mechanism for plastic bottle flakes, comprising a base, wherein two connecting plates are fixedly connected to the upper surface of the base, a feeding port is fixedly connected to the side where the two connecting plates are close to each other, a screening mechanism is provided on the side where the two connecting plates are close to each other, the screening mechanism comprises a first mounting platform, the first mounting platform is fixedly connected to the side of the base close to the connecting plate, the side of the base close to the connecting plate is fixedly connected to the second mounting platform, a plurality of front sorting lenses are fixedly connected to the inner wall of the first mounting platform, a plurality of rear sorting lenses are fixedly connected to the inner wall of the second mounting platform, and the inner walls of the first mounting platform and the second mounting platform are both fixedly connected to Two irradiation lamps, a high-pressure spray valve is fixedly connected to the side of the base close to the first mounting platform, a slide is fixedly connected to the side of the base close to the feed port, a first material receiving barrel is fixedly connected to the side of the base close to the slide, a second material receiving barrel is fixedly connected to the side of the base close to the slide, a collecting device is provided on the side of the base away from the slide, the collecting device includes a mounting plate, the mounting plate is fixedly connected to the side of the base away from the slide, four shift plates are installed on the upper surface of the mounting plate, four first collecting boxes are detachably installed on the upper surfaces of the four shift plates, four second collecting boxes are detachably installed on the upper surfaces of the four shift plates, and two gravity sensors are fixedly connected to the inner walls of the four shift plates.

[0007] The effects achieved by the above components are: the first collecting box and the second collecting box can be installed on the base by setting the mounting plate, so that the sorted plastic bottle flakes can be collected by the first collecting box and the second collecting box, and the number of plastic bottle flakes in the first collecting box and the second collecting box can be detected by setting the gravity sensor.

[0008] Preferably, four sliding grooves are opened on one side of the mounting plate close to the movable plate, and the surfaces of the sliding grooves on the four mounting plates are slidably connected with sliding bars, and the sliding bars are fixedly connected to the movable plate, and the surface of the mounting plate is fixedly connected with four electric telescopic rods.

[0009] The effects achieved by the above components are: the moving plate can be controlled to move by setting the electric telescopic rod, and the moving plate can be moved while the connection between the moving plate and the mounting plate is ensured by setting the sliding bar.

[0010] Preferably, the surfaces of the four electric telescopic rods are all covered with limit plates, one side of the limit plate is fixedly connected to the base, the upper surfaces of the four moving plates are fixedly connected to push plates, and the output ends of the four electric telescopic rods are fixedly connected to the push plates.

[0011] The effects achieved by the above components are: by setting the limit plate, the stability of the electric telescopic rod during operation is guaranteed as much as possible, and by setting the push plate, the electric telescopic rod can be connected to the moving plate, so that the moving plate can be controlled to move by the electric telescopic rod.

[0012] Preferably, three stabilizing rods are fixedly connected to one side of the mounting plate close to the push plate, and the other ends of the three stabilizing rods are fixedly connected to the base, and two limiting protrusions are fixedly connected to one side of the four moving plates close to the first collection box and the second collection box.

[0013] The effects achieved by the above components are: the stability of the connection between the mounting plate and the base is improved by the stabilizing rod, and the positions of the first collection box and the second collection box can be limited by setting the limiting protruding rod.

[0014] Preferably, a supporting device is provided on the side of the mounting plate close to the movable plate, and the supporting device includes eight supporting rods, and the eight supporting rods are all slidably connected to the inner wall of the mounting plate, and the inner walls of the eight supporting rods are all slidably connected to fixing rods, and the fixing rods are fixedly connected to the inner wall of the mounting plate, and the upper surfaces of the eight supporting rods are each provided with two card holes.

[0015] The effect achieved by the above components is: by setting the fixed rod, the support rod can slide on the inner wall of the mounting plate while ensuring the connection relationship between the support rod and the mounting plate as much as possible; by setting the support rod, the moving plate can be supported when the moving plate moves away from the mounting plate.

[0016] Preferably, a first spring is sleeved on the surface of the fixing rod, and the two ends of the first spring are respectively fixedly connected to the support rod and the mounting plate, and the four movable plates are fixedly connected to two arc-shaped plates on one side away from the support rod, and the inner walls of the two arc-shaped plates are slidably connected to a clamping rod.

[0017] The effects achieved by the above components are: by setting the first spring, the position of the support rod can be limited, while at the same time ensuring as much as possible that the support rod can return to its original position after moving, and by setting the arc plate, the clamping rod can be connected to the shifting plate.

[0018] Preferably, one end of the clamping rod close to the support rod is fixedly connected with a clamping block, the other end of the clamping rod is fixedly connected with a circular plate, the surface of the clamping rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the circular plate and the arc plate.

[0019] The effect achieved by the above components is: the movement of the support rod can be controlled by setting the card rod and the card block, and the side of the card block away from the support rod is an arc surface, so that when the card block moves in the direction away from the support rod, it can be separated from the support rod, and the position of the card rod can be limited by setting the second spring.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model can install the first collecting box and the second collecting box on the base by arranging the mounting plate, so that the sorted plastic bottle chips can be collected by the first collecting box and the second collecting box, and the number of plastic bottle chips in the first collecting box and the second collecting box can be detected by arranging the gravity sensor, so that after the plastic bottle chips in the first collecting box or the second collecting box are full, the electric telescopic rod can automatically control the moving plate to drive the first collecting box and the second collecting box to move away from the base, which is convenient for collecting the plastic bottle chips.

[0022] 2. The utility model provides a fixing rod so that the support rod can slide on the inner wall of the mounting plate while ensuring the connection relationship between the support rod and the mounting plate as much as possible; the support rod can be provided to support the shifting plate when the shifting plate moves away from the mounting plate; the position of the support rod can be limited by providing a first spring and at the same time ensuring as much as possible that the support rod can return to its original position after moving; the movement of the support rod can be controlled by providing a clamping rod and a clamping block; the side of the clamping block away from the support rod is an arc-shaped surface, so that when the clamping block moves in a direction away from the support rod, it can be separated from the support rod; and the position of the clamping rod can be limited by providing a second spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the collecting device of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the shifting plate of the utility model;

[0027] Figure 5 For this utility model Figure 3 Schematic diagram of the local structure;

[0028] Figure 6 It is a structural schematic diagram of the support device of the utility model;

[0029] Figure 7 For this utility model Figure 6 Enlarged view of point A.

[0030] In the figure: 1. base; 2. connecting plate; 3. feed port; 4. screening mechanism; 41. first mounting platform; 42. second mounting platform; 43. rear sorting lens; 44. irradiation lamp; 45. front sorting lens; 46. high-pressure spray valve; 5. slideway; 6. first collecting barrel; 7. second collecting barrel; 8. collecting device; 801. mounting plate; 802. first collecting box; 803. second collecting box; 804. electric telescopic rod; 805. limit plate; 806. shift plate; 807. limit convex rod; 808. stabilizing rod; 809. slide bar; 810. gravity sensor; 811. push plate; 9. supporting device; 91. fixing rod; 92. supporting rod; 93. first spring; 94. arc plate; 95. clamping rod; 96. second spring; 97. round plate; 98. clamping block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-7 The utility model provides a technical solution: a plastic bottle flake color sorting mechanism, comprising a base 1, two connecting plates 2 are fixedly connected to the upper surface of the base 1, a feeding port 3 is fixedly connected to the side where the two connecting plates 2 are close to each other, a screening mechanism 4 is arranged on the side where the two connecting plates 2 are close to each other, the screening mechanism 4 comprises a first mounting platform 41, the first mounting platform 41 is fixedly connected to the side of the base 1 close to the connecting plate 2, a second mounting platform 42 is fixedly connected to the side of the base 1 close to the connecting plate 2, a plurality of front sorting lenses 45 are fixedly connected to the inner wall of the first mounting platform 41, and a plurality of front sorting lenses 45 are fixedly connected to the inner wall of the second mounting platform 41. A plurality of rear sorting lenses 43 are fixedly connected to the inner wall of the platform 42, two irradiation lamps 44 are fixedly connected to the inner walls of the first mounting platform 41 and the second mounting platform 42, a high-pressure spray valve 46 is fixedly connected to the side of the base 1 close to the first mounting platform 41, a slide 5 is fixedly connected to the side of the feed port 3 close to the base 1, a first material receiving barrel 6 is fixedly connected to the side of the base 1 close to the slide 5, a second material receiving barrel 7 is fixedly connected to the side of the base 1 close to the slide 5, a collecting device 8 is provided on the side of the base 1 away from the slide 5, and a supporting device 9 is provided on the side of the mounting plate 801 close to the shift plate 806.

[0033] The specific configuration and function of the collecting device 8 and the supporting device 9 will be described in detail below.

[0034] like Figure 1-Figure 5As shown, the collecting device 8 includes a mounting plate 801, which is fixedly connected to the side of the base 1 away from the slideway 5, and four shifting plates 806 are mounted on the upper surface of the mounting plate 801. Four first collecting boxes 802 are detachably mounted on the upper surfaces of the four shifting plates 806, and four second collecting boxes 803 are detachably mounted on the upper surfaces of the four shifting plates 806. Two gravity sensors 810 are fixedly connected to the inner walls of the four shifting plates 806. The first collecting box 802 and the second collecting box 803 can be mounted on the base 1 by setting the mounting plate 801, so that the sorted plastic bottle pieces can be collected by the first collecting box 802 and the second collecting box 803, and the number of plastic bottle pieces in the first collecting box 802 and the second collecting box 803 can be detected by setting the gravity sensor 810. Four slide grooves are provided on one side of the mounting plate 801 close to the moving plate 806. The surfaces of the slide grooves on the four mounting plates 801 are all slidably connected with slide bars 809. The slide bars 809 are fixedly connected to the moving plate 806. Four electric telescopic rods 804 are fixedly connected to the surface of the mounting plate 801. The moving plate 806 can be controlled to move by setting the electric telescopic rods 804. The moving plate 806 can be moved while the connection between the moving plate 806 and the mounting plate 801 is ensured by setting the slide bars 809.

[0035] The surfaces of the four electric telescopic rods 804 are all covered with a limit plate 805, one side of the limit plate 805 is fixedly connected to the base 1, and the upper surfaces of the four moving plates 806 are all fixedly connected with a push plate 811, and the output ends of the four electric telescopic rods 804 are fixedly connected to the push plate 811. The setting of the limit plate 805 ensures the stability of the electric telescopic rod 804 when working as much as possible, and the setting of the push plate 811 enables the electric telescopic rod 804 to be connected to the moving plate 806, so that the moving plate 806 can be controlled to move by the electric telescopic rod 804. Three stabilizing rods 808 are fixedly connected to one side of the mounting plate 801 close to the push plate 811, and the other ends of the three stabilizing rods 808 are fixedly connected to the base 1, and two limit convex rods 807 are fixedly connected to one side of the four moving plates 806 close to the first collection box 802 and the second collection box 803. The stabilizing rod 808 improves the stability of the mounting plate 801 connected to the base 1 , and the limiting protruding rod 807 can limit the positions of the first collecting box 802 and the second collecting box 803 .

[0036] like Figure 4 and Figure 6 as well as Figure 7As shown, the support device 9 includes eight support rods 92, and the eight support rods 92 are all slidably connected to the inner wall of the mounting plate 801. The inner walls of the eight support rods 92 are all slidably connected with fixed rods 91, and the fixed rods 91 are fixedly connected to the inner wall of the mounting plate 801. The upper surfaces of the eight support rods 92 are all provided with two clamping holes. By setting the fixed rods 91, the support rods 92 can slide on the inner wall of the mounting plate 801 while ensuring the connection relationship between the support rods 92 and the mounting plate 801 as much as possible. By setting the support rods 92, the movable plate 806 can be supported when the movable plate 806 moves away from the mounting plate 801. The surface of the fixed rod 91 is sleeved with a first spring 93, and the two ends of the first spring 93 are fixedly connected to the support rod 92 and the mounting plate 801 respectively. The side of the four movable plates 806 away from the support rods 92 is fixedly connected with two arc plates 94, and the inner walls of the two arc plates 94 are slidably connected with clamping rods 95. By setting the first spring 93 , the position of the support rod 92 can be limited, while ensuring as much as possible that the support rod 92 can return to its original position after moving. By setting the arc plate 94 , the clamping rod 95 can be connected to the shifting plate 806 .

[0037] A clamping block 98 is fixedly connected to one end of the clamping rod 95 close to the support rod 92, and a circular plate 97 is fixedly connected to the other end of the clamping rod 95. A second spring 96 is sleeved on the surface of the clamping rod 95, and the two ends of the second spring 96 are respectively fixedly connected to the circular plate 97 and the arc plate 94. The support rod 92 can be controlled to move by setting the clamping rod 95 and the clamping block 98. The side of the clamping block 98 away from the support rod 92 is an arc surface, so that when the clamping block 98 moves in a direction away from the support rod 92, it can be separated from the support rod 92. The position of the clamping rod 95 can be limited by setting the second spring 96.

[0038] Working principle: When using the plastic bottle flake color sorting mechanism to sort the color of plastic bottle flakes, first connect the plastic bottle flake color sorting mechanism to an external power supply, and put the plastic bottle flakes into the plastic bottle flake color sorting mechanism through the feed port 3. Then the plastic bottle flakes move close to the base 1 through the slide 5. At this time, the irradiation lamps 44 in the first mounting platform 41 and the second mounting platform 42 of the screening mechanism 4 irradiate the plastic bottle flakes according to the set frequency, and at the same time, the characteristics of the plastic bottle flakes are transmitted back to the control console through the front sorting lens 45 and the rear sorting lens 43. When the control console finds that the plastic bottle flakes need to be picked out, it controls the high-pressure spray valve 46 to start, so that the plastic bottle flakes that need to be picked out enter the second collecting barrel 7, and the plastic bottle flakes that need to be collected fall normally into the first collecting barrel 6, and then the plastic bottle flakes can be collected separately. The base 1 can be connected to the feed port 3 by setting a connecting plate 2. When the plastic bottle flakes color sorting mechanism is used to sort the plastic bottle flakes, the plastic bottle flakes enter the first collection box 802 and the second collection box 803 on the mounting plate 801 through the first material receiving cylinder 6 and the second material receiving cylinder 7 respectively. When enough plastic bottle flakes are collected in the first collection box 802 or the second collection box 803, the gravity sensor 810 sends a signal, so that the control console controls the plastic bottle flakes color sorting mechanism to stop running, and controls the electric telescopic rod 804 to start at the same time. The electric telescopic rod 804 pushes the moving plate 806 to move away from the electric telescopic rod 804 through the pushing plate 811. At this time, the first collection box 802 and the second collection box 803 move away from the base 1. When the staff has collected the plastic bottle flakes, the control console controls the electric telescopic rod 804 to drive the slide bar 809 to slide on the surface of the slide groove on the mounting plate 801. The movement makes the shift plate 806 drive the first collection box 802 and the second collection box 803 to move closer to the electric telescopic rod 804. By setting the stabilizing rod 808, the stability of the connection between the mounting plate 801 and the base 1 is improved as much as possible. By setting the limiting plate 805, the stability of the electric telescopic rod 804 during operation is guaranteed as much as possible. By using the limiting convex rod 807, the stability of the installation of the first collection box 802 and the second collection box 803 is guaranteed as much as possible. By setting the collecting device 8, when the color sorting mechanism for plastic bottle chips is used to sort the color of plastic bottle chips, the collection of plastic bottle chips can be automatically detected. At the same time, when the collection of plastic bottle chips is completed, the first collection box 802 and the second collection box 803 can be automatically controlled to be away from the base 1, which is convenient for the staff to collect the sorted plastic bottle chips.

[0039] When the shift plate 806 moves away from the electric telescopic rod 804, the movement of the shift plate 806 drives the arc plate 94 and the clamping rod 95 to move closer to the support rod 92. When the clamping rod 95 moves closer to the clamping hole on the support rod 92, the clamping block 98 is clamped into the clamping hole under the action of the elastic force of the second spring 96. At this time, the movement of the shift plate 806 drives the support rod 92 to slide on the surface of the fixed rod 91, so that when the shift plate 806 moves away from the mounting plate 801, the support rod 92 can support the shift plate 806. When the shift plate 806 moves closer to the electric telescopic rod 804, the The side of the card block 98 close to the electric telescopic rod 804 is an arc surface, so the second spring 96 contracts to drive the card block 98 away from the card hole on the support rod 92, and the circular plate 97 moves away from the arc plate 94. At the same time, under the action of the elastic force of the first spring 93, the support rod 92 moves close to the limit plate 805. By setting the supporting device 9, when the plastic bottle pieces in the first collection box 802 or the second collection box 803 are fully collected, it can support the moving plate 806 moving away from the mounting plate 801, thereby improving the stability of the moving plate 806 when moving as much as possible.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic bottle flake color sorting mechanism, comprising a base (1), wherein two connecting plates (2) are fixedly connected to the upper surface of the base (1), a feeding port (3) is fixedly connected to the side of the two connecting plates (2) close to each other, a screening mechanism (4) is provided on the side of the two connecting plates (2) close to each other, the screening mechanism (4) comprises a first mounting platform (41), the first mounting platform (41) is fixedly connected to the side of the base (1) close to the connecting plate (2), the side of the base (1) close to the connecting plate (2) is fixedly connected to a second mounting platform (42), the inner wall of the first mounting platform (41) is fixedly connected to a plurality of front sorting lenses (45), and the second mounting platform (42) is fixedly connected to the inner wall of the first mounting platform (41). The inner wall of the mounting platform (42) is fixedly connected with a plurality of rear sorting lenses (43); the inner walls of the first mounting platform (41) and the second mounting platform (42) are both fixedly connected with two irradiation lamps (44); the side of the base (1) close to the first mounting platform (41) is fixedly connected with a high-pressure spray valve (46); the side of the feed port (3) close to the base (1) is fixedly connected with a slideway (5); the side of the base (1) close to the slideway (5) is fixedly connected with a first material receiving barrel (6); the side of the base (1) close to the slideway (5) is fixedly connected with a second material receiving barrel (7); the side of the base (1) away from the slideway (5) is provided with a collecting device (8), characterized in that: The collecting device (8) comprises a mounting plate (801), wherein the mounting plate (801) is fixedly connected to a side of the base (1) away from the slideway (5), and four shift plates (806) are mounted on the upper surface of the mounting plate (801), and four first collecting boxes (802) are detachably mounted on the upper surfaces of the four shift plates (806), and four second collecting boxes (803) are detachably mounted on the upper surfaces of the four shift plates (806), and two gravity sensors (810) are fixedly connected to the inner walls of the four shift plates (806).

2. The plastic bottle flake color sorting mechanism according to claim 1, characterized in that: Four slide grooves are provided on one side of the mounting plate (801) close to the moving plate (806); the surfaces of the slide grooves on the four mounting plates (801) are slidably connected with slide bars (809); the slide bars (809) are fixedly connected to the moving plate (806); and four electric telescopic rods (804) are fixedly connected to the surface of the mounting plate (801).

3. The color sorting mechanism for plastic bottle flakes according to claim 2, characterized in that: The surfaces of the four electric telescopic rods (804) are all sleeved with a limit plate (805), one side of the limit plate (805) is fixedly connected to the base (1), the upper surfaces of the four moving plates (806) are all fixedly connected with a push plate (811), and the output ends of the four electric telescopic rods (804) are fixedly connected to the push plate (811).

4. The plastic bottle flake color sorting mechanism according to claim 3, characterized in that: Three stabilizing rods (808) are fixedly connected to one side of the mounting plate (801) close to the push plate (811), and the other ends of the three stabilizing rods (808) are fixedly connected to the base (1). Two limiting protrusions (807) are fixedly connected to one side of the four moving plates (806) close to the first collection box (802) and the second collection box (803).

5. The plastic bottle flake color sorting mechanism according to claim 1, characterized in that: A support device (9) is provided on one side of the mounting plate (801) close to the shift plate (806), and the support device (9) includes eight support rods (92), and the eight support rods (92) are all slidably connected to the inner wall of the mounting plate (801), and the inner walls of the eight support rods (92) are all slidably connected to fixed rods (91), and the fixed rods (91) are fixedly connected to the inner wall of the mounting plate (801), and the upper surfaces of the eight support rods (92) are each provided with two clamping holes.

6. The plastic bottle flake color sorting mechanism according to claim 5, characterized in that: A first spring (93) is sleeved on the surface of the fixing rod (91), and the two ends of the first spring (93) are fixedly connected to the support rod (92) and the mounting plate (801) respectively; the four moving plates (806) are fixedly connected to two arc-shaped plates (94) on one side away from the support rod (92), and the inner walls of the two arc-shaped plates (94) are slidably connected to a clamping rod (95).

7. The plastic bottle flake color sorting mechanism according to claim 6, characterized in that: One end of the clamping rod (95) close to the support rod (92) is fixedly connected to a clamping block (98), and the other end of the clamping rod (95) is fixedly connected to a circular plate (97). A second spring (96) is sleeved on the surface of the clamping rod (95), and two ends of the second spring (96) are respectively fixedly connected to the circular plate (97) and the arc plate (94).

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