Decorative wallboard mold transfer device

Abstract

The utility model relates to the technical field of mold transfer, in particular to a decorative wallboard mold transfer device which comprises a lifting mechanism, the lifting mechanism comprises a base plate, two first bearing seats are symmetrically fixed to the inner bottom face of the base plate, and a second bearing seat is fixedly connected to the position, between the two first bearing seats, of the inner bottom face of the base plate. And inner arms are rotationally connected to the interiors of the two first bearing seats correspondingly, outer arms are rotationally connected to the two opposite side walls of the two inner arms correspondingly, and fixing shafts are rotationally connected to the positions, making contact with the two outer arms, of the two inner arms correspondingly. According to the decorative wallboard mold transferring device, the lifting mechanism, the outer clamping plate, the gear, the rack, the first fixing plate, the partition plate, the second reset spring and the second fixing plate are connected and matched, so that a plurality of decorative wallboard molds can be transferred at a time, and manpower consumption is reduced. And through connection and cooperation of a second hydraulic cylinder, a lifting block, a square sleeve, a strip-shaped plate, a rolling shaft, a first reset spring and a lifting table, the decorative wall mold is more easily discharged in a labor-saving mode.

Description

Technical Field

[0001] The utility model relates to the technical field of mold transfer, in particular to a decorative wallboard mold transfer device. Background Art

[0002] In the modern building decoration industry, decorative wall panels are widely used because of their unique decorative effect and practicality. In the production process of decorative wall panels, molds are indispensable tools. Decorative wall panel molds are widely used in the construction, decoration and home furnishing industries. They can be used to make various decorative wall panels, such as artistic hollow wall molds. These wall panels not only have beautiful appearance, but also have good slope protection effect and durability;

[0003] In the traditional production process of decorative wall panels, the transfer of decorative wall panel molds usually relies on manual labor or cranes and forklifts. Manual handling is not only labor-intensive, but long-term manual operation may also cause worker fatigue and increase the risk of work-related injuries. Cranes and forklifts occupy too much area, which is a waste of resources when transferring a small number of decorative wall panel molds. Utility Model Content

[0004] The utility model aims to provide a decorative wallboard mold transfer device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A decorative wall panel mold transfer device comprises a lifting mechanism, which comprises a chassis, wherein two bearing seats 1 are symmetrically fixed to the inner bottom surface of the chassis, and the inner bottom surface of the chassis is fixedly connected to a bearing seat 2 at a position between the two bearing seats 1, the two bearing seats 1 are rotatably connected to the inside of the two bearing seats, and the two side walls opposite to each other of the two inner arms are rotatably connected to the outer arms, and the positions where the two inner arms and the two outer arms contact are rotatably connected to a fixed shaft, and the inner walls of the two outer arms near the top are fixedly connected to a thrust shaft, the outer walls of the thrust shaft are rotatably connected to two thrust plates, and a thrust rod is rotatably connected between the two thrust plates, a hydraulic cylinder 1 is rotatably connected to the inside of the bearing seat 2, and the other end of the hydraulic cylinder 1 is rotatably connected to the thrust rod, and the two side walls of the chassis are provided with a slide groove 1, and four universal wheels are symmetrically fixed to the bottom surface of the chassis, and the ends of the two outer arms near the top are rotatably connected to a lifting platform.

[0007] The invention further comprises: a brake is arranged inside the universal wheel.

[0008] The two wheels are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the two axles are connected with the two axles at the bottom, and the

[0009] Furthermore, three cavities are equidistantly provided inside the lifting platform, and auxiliary unloading units are fixedly connected to the three cavities, and the auxiliary unloading unit comprises a strip plate, and a plurality of rollers are rotatably connected to the top surface of the strip plate, and two hydraulic cylinders 2 are symmetrically fixed to the bottom surface of the strip plate, and a plurality of square sleeves are equidistantly fixed to the bottom surface of the strip plate located between the two hydraulic cylinders 2, and a plurality of square sleeves are fixedly connected to the bottom surfaces of the plurality of square sleeves, and a plurality of lifting blocks are slidably sleeved on the outer walls of the plurality of square sleeves, and the other ends of the plurality of reset springs 1 are respectively fixedly connected to the inner bottom surfaces of the plurality of lifting blocks, and a plurality of plug-in grooves for plugging with the rollers are equidistantly provided on the top surface of the lifting platform.

[0010] Further, the fixing mechanism includes two outer clamps and two partition plates, the bottom surfaces of the two outer clamps are fixedly connected with rotating seats three, the two rotating seats three are respectively rotatably connected with two rotating seats one, the inner parts of the two outer clamps are symmetrically rotatably connected with two transmission shafts, the outer walls of the two transmission shafts are symmetrically sleeved and fixed with two gears, the side walls of the outer clamps are slidably connected with racks at four corner positions, one ends of the four racks are fixedly connected with a fixing plate one, the four racks are respectively meshed with four gears for transmission, the end sides of the outer clamps are fixedly connected with a motor seat, the side walls of the motor seat are fixedly connected with a motor, the motor shaft of the motor is rotatably connected to the end of one of the transmission shafts, and the two transmission shafts are connected with a pulley for transmission.

[0011] Furthermore, the bottom surfaces of the two partition plates are fixedly connected with rotating seats four, the two rotating seats four are rotatably connected to the two rotating seats two respectively, the two side walls of the partition plate corresponding to the four fixed plates one are fixedly connected with reset springs two, the other ends of each of the four reset springs two are fixedly connected with the fixed plate two, and the rotating seat one and the rotating seat three as well as the rotating seat two and the rotating seat four are fixed by manual knobs.

[0012] Preferably, the side walls of the fixing plate 1 and the fixing plate 2 are both bonded and fixed with anti-skid rubber pads.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Through the coordination among the lifting mechanism, the outer clamping plate, the gear, the rack, the fixed plate 1, the partition plate, the reset spring 2 and the fixed plate 2, multiple decorative wall panel molds can be transferred at one time without manual lifting and carrying, thus reducing manpower consumption.

[0015] 2. Through the connection and coordination between hydraulic cylinder 2, lifting block, square sleeve, strip plate, roller, reset spring 1 and lifting platform, the decorative wall mold is easier and more labor-saving when unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a decorative wall panel mold transfer device of the utility model;

[0017] Figure 2 This is a schematic diagram of the top structure of the lifting mechanism in the utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the lifting mechanism in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the lifting platform in the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the auxiliary unloading unit in the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the Chinese and foreign splints of the utility model;

[0022] Figure 7 It is a schematic diagram of the internal structure of the middle and outer splints of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the partition plate in the utility model.

[0024] In the figure: 100, lifting mechanism; 110, chassis; 111, slideway 1; 112, bearing seat 1; 113, bearing seat 2; 114, universal wheel; 120, inner arm; 121, outer arm; 122, fixed shaft; 123, roller; 124, axle; 125, fastening nut; 126, thrust shaft; 127, thrust plate; 128, thrust rod; 129, hydraulic cylinder 1; 130, lifting platform; 131, connecting rod; 132, connecting plate; 133, slideway 2; 134, rotating seat 1; 135, rotating seat 2; 136, lifting platform; 137, connecting rod; 138, connecting plate; 139, slideway 2; 140, rotating seat 1; 141, rotating seat 2; 142, rotating seat 2; 143, rotating seat 2; 144, rotating seat 1; 145, rotating seat 2; 146, rotating seat 2; 147, rotating seat 2; 148, rotating seat 2; 149, lifting mechanism; 150, chassis; 151, connecting rod; 152, connecting plate; 153, slideway 2; 154, rotating seat 1; 155, rotating seat 2; 156, rotating seat 2; 157, rotating seat 2; 158, rotating seat 2; 159, lifting mechanism; 15 6. Manual knob; 140. Auxiliary unloading unit; 141. Hydraulic cylinder 2; 142. Lifting block; 143. Square sleeve; 144. Strip plate; 145. Roller; 146. Reset spring 1; 200. Fixing mechanism; 210. Outer clamp; 211. Motor seat; 212. Motor; 213. Pulley; 214. Rotating seat 3; 215. Transmission shaft; 216. Gear; 217. Rack; 218. Fixed plate 1; 220. Partition plate; 221. Reset spring 2; 222. Fixed plate 2; 223. Rotating seat 4. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figures 1 to 8In an embodiment of the utility model, a decorative wall panel mold transfer device includes a lifting mechanism 100, and the lifting mechanism 100 includes a chassis 110. Two bearing seats 112 are symmetrically fixed on the inner bottom surface of the chassis 110. A bearing seat 2 113 is fixedly connected to the position of the inner bottom surface of the chassis 110 between the two bearing seats 112. The insides of the two bearing seats 112 are both rotatably connected to inner arms 120. The two side walls of the two inner arms 120 that are opposite to each other are both rotatably connected to outer arms 121. The position where the two inner arms 120 and the two outer arms 121 contact is rotatably connected to a fixed shaft 1 22, a thrust shaft 126 is fixedly connected between the inner walls of the two outer arms 121 near the upper part, the outer wall of the thrust shaft 126 is rotatably connected to two thrust plates 127, a thrust rod 128 is rotatably connected between the two thrust plates 127, a hydraulic cylinder 129 is rotatably connected inside the bearing seat 2 113, the other end of the hydraulic cylinder 129 is rotatably connected to the thrust rod 128, a slide groove 111 is provided on both side walls of the chassis 110, four universal wheels 114 are symmetrically fixed on the bottom surface of the chassis 110, one end of the two outer arms 121 near the upper part is rotatably connected to a lifting platform 130, and the universal wheels 114 are symmetrically fixed to the bottom surface of the chassis 110, and the two outer arms 121 are rotatably connected to a lifting platform 130. The wheel 114 is provided with a brake inside, a connecting rod 131 is fixedly connected to the bottom surface of the lifting platform 130 and the position corresponding to the bearing seat 112, the outer wall of the connecting rod 131 is rotatably connected to the ends of the two outer arms 121, a connecting plate 132 is symmetrically fixed to the bottom surface of the lifting platform 130, and the side walls of the two connecting plates 132 are provided with a slide groove 133, the ends of the two inner arms 120 at the top and the ends of the two outer arms 121 at the bottom are fixedly connected with a wheel shaft 124, and the ends of the two wheel shafts 124 located in the slide groove 111 are screwed and connected with a fastening nut 1 25, the outer walls of the four wheel axles 124 are rotatably connected with rollers 123, the two wheel axles 124 located at the ends of the inner arm 120 are slidably connected with the two slide grooves 133 respectively, the two wheel axles 124 located at the ends of the outer arm 121 are slidably connected with the two slide grooves 111 respectively, the top surface of the lifting platform 130 near the two sides is fixedly connected with a rotating seat 134, the top surface of the lifting platform 130 located between the two rotating seats 134 is symmetrically fixed with two rotating seats 2 135, and the internal rotation of the rotating seat 134 and the rotating seat 2 135 is connected with a fixing mechanism 200.

[0027] Specifically, when the decorative wall panel mold needs to be transferred, the decorative wall panel mold is placed on the top surface of the lifting platform 130, and the universal wheel 114 is fixed to the bottom surface of the chassis 110, so that the device can be pushed to drive the decorative wall panel mold to move, and it can be directly transferred over a short distance to avoid the risk of manual handling. When a long-distance transfer is required, the device is moved to the rear of the car with the decorative wall panel mold, and the hydraulic cylinder 129 is driven to extend so that the fixed shaft 122 is pushed, and the four rollers 123 slide on the bottom surface of the lifting platform 130 and the bottom surface of the chassis 110 respectively, and the four wheel axles 124 slide in the slide groove 2 133 and the slide groove 1 111 respectively until the lifting platform 130 is lifted to the height of the car, which is convenient for loading and handling, avoiding manual lifting of the decorative wall panel mold for loading, and reducing manpower loss.

[0028] Embodiment 1

[0029] like Figure 6-8 As shown, in this embodiment, the fixing mechanism 200 includes two outer clamping plates 210 and two partition plates 220, the bottom surfaces of the two outer clamping plates 210 are fixedly connected with rotating seats 3 214, the two rotating seats 3 214 are respectively rotatably connected with two rotating seats 1 134, the inner parts of the two outer clamping plates 210 are symmetrically rotatably connected with two transmission shafts 215, the outer walls of the two transmission shafts 215 are symmetrically sleeved and fixed with two gears 216, the side walls of the outer clamping plates 210 are slidably connected with racks 217 at the four corners, one end of the four racks 217 is fixedly connected with a fixing plate 1 218, the four racks 217 are respectively meshed with four gears 216 for transmission, the end sides of the outer clamping plates 210 are fixedly connected with motor seats 211, and the side walls of the motor seats 211 are fixedly connected with motor seats 211. The motor 212 shaft of the motor 212 is rotatably connected to the end of one of the transmission shafts 215, and the two transmission shafts 215 are connected to the pulley 213 for transmission. The bottom surfaces of the two partition plates 220 are fixedly connected with the rotating seat four 223, and the two rotating seats four 223 are respectively rotatably connected with the two rotating seats two 135. The two side walls of the partition plate 220 corresponding to the four fixed plates one 218 are fixedly connected with the return spring two 221, and the other end of each of the four return springs two 221 is fixedly connected with the fixed plate two 222. The rotating seat one 134 and the rotating seat three 214 as well as the rotating seat two 135 and the rotating seat four 223 are fixed by a manual knob 136, and the side walls of the fixed plate one 218 and the fixed plate two 222 are bonded and fixed with anti-slip rubber pads.

[0030] In this embodiment, when placing the decorative wall panel mold on the top surface of the lifting platform 130, the two partition plates 220 and the two outer clamping plates 210 are first unfolded with the rotating seat 2 135 and the rotating seat 1 134 as the axis, and then a decorative wall panel mold is placed between the two, and the two partition plates 220 are lifted up and brought close to the decorative wall panel mold. After straightening, they are fixed by rotating the manual knob 136. Then, the two decorative wall panel molds are placed between the outer clamping plates 210 and the partition plates 220, and the two outer clamping plates 210 are straightened and fixed by rotating the manual knob 136. The motor 212 shafts and the transmission shaft 215 of the two motors 212 are driven to transmit, and the gear 216 is evenly driven through the transmission of the pulley 213. As it rotates, the gear 216 and the rack 217 mesh and transmit, so that the rack 217 moves outward, so that the fixed plate 1 218 extends outward until it fits with the surface of the decorative wall panel mold, and under the elastic force of the return spring 221, the fixed plate 222 is pressed against the decorative wall panel mold, so that the fixed plate 1 218 and the fixed plate 222 form a clamping force on the decorative wall panel mold, so that the decorative wall panel mold is placed stably and not easy to tilt; the number of manual knobs 136 and partition plates 220 can be increased as needed and the area size of the lifting platform 130 can be changed. By opening a plurality of partition plates 220, the top surface of the lifting platform 130 is divided into a plurality of areas, so that the number of decorative wall panel molds transferred at one time is increased.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, in order to make up for the defect that it is relatively laborious to remove the decorative wall panel mold from the top surface of the lifting platform 130 in the first embodiment.

[0033] like Figure 4-5 As shown, in the present embodiment, three cavities are equidistantly provided inside the lifting platform 130, and auxiliary unloading units 140 are fixedly connected to the three cavities. The auxiliary unloading unit 140 comprises a strip plate 144, and a plurality of rollers 145 are rotatably connected to the top surface of the strip plate 144 at equal intervals. Two hydraulic cylinders 141 are symmetrically fixed to the bottom surface of the strip plate 144, and a plurality of square sleeves 143 are equidistantly fixed to the bottom surface of the strip plate 144 located between the two hydraulic cylinders 141, and a plurality of square sleeves 143 are equidistantly fixed to the bottom surface of the strip plate 144, and a reset spring 146 is fixedly connected to the bottom surfaces of the plurality of square sleeves 143, and a lifting block 142 is slidably sleeved on the outer walls of the plurality of square sleeves 143, and the other ends of the plurality of reset springs 146 are respectively fixedly connected to the inner bottom surfaces of the plurality of lifting blocks 142, and a plurality of plug-in grooves for plugging with the rollers 145 are equidistantly provided on the top surface of the lifting platform 130.

[0034] In specific implementation, when the lifting platform 130 is lifted to the level of the carriage, the hydraulic cylinder 141 is driven to extend, and the square sleeve 143 slides inside the lifting block 142, so that the strip plate 144 is pushed up, so that the roller 145 is plugged into the plug-in groove on the top surface of the lifting platform 130, and the roller 145 protrudes from the top surface of the lifting platform 130 and contacts the bottom of the decorative wall panel mold, and the return spring 146 continues to support the bottom surface of the square sleeve 143, and can absorb part of the vibration generated by unloading, reducing the decorative wall panel. The mold is hit, and the motor 212 shaft of the driving motor 212 is transmitted to the transmission shaft 215, so that the gear 216 and the rack 217 are meshed and transmitted, so that the rack 217 drives the fixed plate 218 to move back, so that the fixed plate 218 no longer clamps the decorative wall panel. At this time, when the decorative wall panel mold is dragged, the roller 145 rotates in contact with the bottom surface of the decorative wall panel mold, reducing the friction with the bottom surface of the decorative wall panel mold, so that pulling the decorative wall panel mold does not require too much physical strength, which is convenient for unloading.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A decorative wall panel mold transfer device, characterized in that: The lifting mechanism (100) comprises a chassis (110), wherein two bearing seats (112) are symmetrically fixed on the inner bottom surface of the chassis (110), a bearing seat (113) is fixedly connected to the inner bottom surface of the chassis (110) between the two bearing seats (112), the interiors of the two bearing seats (112) are both rotatably connected to inner arms (120), two side walls of the two inner arms (120) facing each other are both rotatably connected to outer arms (121), a fixed shaft (122) is rotatably connected to the position where the two inner arms (120) and the two outer arms (121) are in contact, and the two outer arms (121) are A thrust shaft (126) is fixedly connected between the inner walls near the top, two thrust plates (127) are rotatably connected to the outer wall of the thrust shaft (126), a thrust rod (128) is rotatably connected between the two thrust plates (127), a hydraulic cylinder (129) is rotatably connected inside the bearing seat 2 (113), the other end of the hydraulic cylinder (129) is rotatably connected to the thrust rod (128), a slide groove (111) is provided on both side walls of the chassis (110), four universal wheels (114) are symmetrically fixed on the bottom surface of the chassis (110), and a lifting platform (130) is rotatably connected to one end of the two outer arms (121) near the top.

2. A decorative wallboard mold transfer device according to claim 1, characterized in that: A brake is provided inside the universal wheel (114).

3. A decorative wallboard mold transfer device according to claim 1, characterized in that: A connecting rod (131) is fixedly connected to the bottom surface of the lifting platform (130) and the position corresponding to the bearing seat (112); the outer wall of the connecting rod (131) and the ends of the two outer arms (121) are rotatably connected; a connecting plate (132) is symmetrically fixed to the bottom surface of the lifting platform (130); the side walls of the two connecting plates (132) are both provided with a second slide groove (133); the ends of the two inner arms (120) at the top and the ends of the two outer arms (121) at the bottom are both fixedly connected to a wheel shaft (124); the ends of the two wheel shafts (124) located inside the slide groove (111) are both screwed and connected with a fastening nut (125); the four wheel shafts (1 The outer wall of the lifting platform (130) is rotatably connected with a roller (123), the two wheel shafts (124) located at the end of the inner arm (120) are respectively slidably connected with the two second slide grooves (133), the two wheel shafts (124) located at the end of the outer arm (121) are respectively slidably connected with the two first slide grooves (111), the top surface of the lifting platform (130) near the two sides is fixedly connected with a rotating seat (134), the top surface of the lifting platform (130) between the two rotating seats (134) is symmetrically fixed with two rotating seats (135), and the internal rotation of the rotating seat (134) and the rotating seat (135) is connected with a fixing mechanism (200).

4. A decorative wallboard mold transfer device according to claim 3, characterized in that: The lifting platform (130) has three cavities at equal intervals, and the three cavities are all fixedly connected with auxiliary unloading units (140). The auxiliary unloading unit (140) comprises a strip plate (144), and the top surface of the strip plate (144) is rotatably connected with a plurality of rollers (145) at equal intervals. Two hydraulic cylinders (141) are symmetrically fixed on the bottom surface of the strip plate (144). The bottom surface of the strip plate (144) located between the two hydraulic cylinders (141) is provided with a plurality of rollers (145) symmetrically fixed on the bottom surface of the strip plate (144). A plurality of square sleeves (143) are fixedly connected to the surface at equal distances, the bottom surfaces of the plurality of square sleeves (143) are fixedly connected to return springs (146), the outer walls of the plurality of square sleeves (143) are slidably sleeved with lifting blocks (142), the other ends of the plurality of return springs (146) are respectively fixedly connected to the inner bottom surfaces of the plurality of lifting blocks (142), and the top surface of the lifting platform (130) is provided with a plurality of plug-in grooves for plugging with rollers (145) at equal distances.

5. A decorative wallboard mold transfer device according to claim 3, characterized in that: The fixing mechanism (200) comprises two outer clamping plates (210) and two partition plates (220). The bottom surfaces of the two outer clamping plates (210) are fixedly connected with a rotating seat three (214). The two rotating seats three (214) are respectively rotatably connected with two rotating seats one (134). The interiors of the two outer clamping plates (210) are symmetrically rotatably connected with two transmission shafts (215). The outer walls of the two transmission shafts (215) are symmetrically sleeved and fixed with two gears (216). The side walls of the outer clamping plates (210) are located at four corners and are slidingly connected. A rack (217) is connected, one end of each of the four racks (217) is fixedly connected to a fixing plate (218), the four racks (217) are respectively meshed with four gears (216) for transmission, the end side of the outer clamping plate (210) is fixedly connected to a motor seat (211), the side wall of the motor seat (211) is fixedly connected to a motor (212), the motor (212) shaft of the motor (212) is rotatably connected to the end of one of the transmission shafts (215), and a pulley (213) is transmission-connected between the two transmission shafts (215).

6. A decorative wallboard mold transfer device according to claim 5, characterized in that: The bottom surfaces of the two partition plates (220) are fixedly connected with rotating seats four (223), and the two rotating seats four (223) are respectively rotatably connected with the two rotating seats two (135). The two side walls of the partition plate (220) corresponding to the four fixed plates one (218) are fixedly connected with return springs two (221), and the other end of each of the four return springs two (221) is fixedly connected with the fixed plate two (222). The rotating seat one (134) and the rotating seat three (214) as well as the rotating seat two (135) and the rotating seat four (223) are fixed by a manual knob (136).

7. A decorative wallboard mold transfer device according to claim 6, characterized in that: The side walls of the first fixing plate (218) and the second fixing plate (222) are both bonded and fixed with anti-skid rubber pads.

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