Uncovering mechanism and horizontal coating equipment

Abstract

The utility model belongs to the technical field of photovoltaic manufacturing equipment, and discloses an uncovering mechanism and horizontal coating equipment. The mechanism comprises a connecting hinge, a pulling rope driving assembly and a pulling rope, the cavity cover is rotationally installed in the cavity through the connecting hinge, the pulling rope is fixedly connected to the cavity cover, and the pulling rope driving assembly can apply pulling force to the cavity cover through the pulling rope so that the cavity cover can rotate around the connecting hinge to a first angle and a second angle. Therefore, the cavity is opened and closed. By means of the cover opening mechanism, the cavity cover can conveniently rotate around the edge of one side of the cavity cover, so that opening and closing of the cavity are achieved, loads applied to the traction rope and the traction rope driving assembly are reduced, and the traction requirement of the cavity cover with the large weight can be met by adopting the small-power and small-size traction rope driving assembly; the problems that operation is difficult, occupied space is large, using cost is high, and the environment is prone to being polluted can be solved, complex structures such as hydraulic pipelines can be avoided, and using and maintaining are easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic manufacturing equipment technical field especially relates to a kind of uncovering mechanism and horizontal coating equipment. BACKGROUND

[0002] In perovskite battery production line, coating equipment is indispensable equipment among them, but with the increasing demand for perovskite battery capacity, the demand for large coating equipment is also increasing more and more.Therefore, the coating equipment used in the existing perovskite production line is mostly horizontal coating equipment, with large cavity, can efficiently produce perovskite battery.

[0003] Coating equipment is opened cavity cover to clean inside cavity periodically. With the increase of equipment and capacity, the cavity opening maintenance work becomes increasingly frequent and important.The common way to open cavity cover includes lifting opening cavity cover by manual crane and the like large device, and adopting multiple small devices such as hydraulic cylinder, electric cylinder to lift open cavity cover.But, large equipment is difficult to operate, occupies large space, has high use cost, is easy to carry impurities to cause pollution to coating environment, and is difficult to apply to large cavity cover.Multiple small devices not only have high equipment cost, and it is difficult to realize cylinder body synchronous lifting and synchronous descent, resulting in the risk of jamming opening or closing cavity cover.At the same time, for large cavity cover, since hydraulic cylinder can not be used, only hydraulic cylinder can be used, complex hydraulic pipeline structure must be used, further increasing maintenance cost and equipment cost.

[0004] Based on the above, an uncovering mechanism and horizontal coating equipment are needed to solve the above technical problems. UTILITY MODEL CONTENT

[0005] One purpose of the utility model is to provide an uncovering mechanism, which can be applied to the opening and closing requirements of cavity cover of large and small horizontal coating equipment, has low cost, is easy to use and maintain, and is beneficial to keeping the cleanliness of coating environment.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The cover opening mechanism is used for horizontal coating equipment, and the horizontal coating equipment comprises a cavity and a cavity cover.

[0008] The cover opening mechanism can conveniently rotate the cavity cover around one side edge, so that the cavity is opened and closed, and the load applied to the traction rope and the traction rope driving assembly is reduced.

[0009] In some embodiments, the cover opening mechanism further comprises a rack, at least part of the rack is arranged above the cavity, and the traction rope driving assembly is arranged on the rack.

[0010] In some embodiments, the traction rope driving assembly comprises a rotating driving member and a winding and unwinding rotating shaft.

[0011] In some embodiments, the traction rope driving assembly further comprises a transmission shaft, a speed reducer and a shaft coupling.

[0012] In some embodiments, the traction rope drive assembly further includes a fixed bearing and a bearing support. The bearing support is disposed on the frame, the fixed bearing is disposed on the bearing support, and the drive shaft rotatably passes through the fixed bearing. By using the fixed bearing and the bearing support, the drive shaft can be rotatably positioned above the cavity, thereby further causing the take-up and release shaft to rotate and apply tension to the traction rope.

[0013] In some embodiments, the opening mechanism further includes a traction rope guide assembly, which is disposed on the frame and located above the cavity;

[0014] The traction rope guiding assembly includes a guide wheel, a guide wheel bearing, and a guide wheel bracket. The guide wheel bracket is mounted on the frame, and the guide wheel bearing is mounted on the guide wheel bracket. The guide wheel is rotatably connected to the guide wheel bearing, and the traction rope is embedded in the guide groove of the guide wheel. The traction rope guiding assembly can limit and fix the traction rope to prevent it from deviating when tension is applied.

[0015] In some embodiments, the frame is provided with a first connecting portion, the cavity cover is provided with a second connecting portion, and the opening mechanism further includes a suspension member for detachably connecting between the first and second connecting portions to hold the cavity cover at a first angle. The suspension member can hold the cavity cover at the first angle, preventing the cavity cover from falling and causing damage to the product, equipment, or personnel.

[0016] In some embodiments, two or more connecting hinges may be connected to one side edge of the cavity cover, and two or more traction ropes may be connected to the cavity cover. By providing two, three, or even more connecting hinges and traction ropes to the cavity cover, the stability of the cavity cover during rotation and its safety when held at the first angle can be improved, and the opening mechanism can also be made suitable for larger cavity covers.

[0017] In some embodiments, the connecting hinge further includes a hinge bearing, a rotating shaft, and a bearing end cap. The first connecting member is provided with a hinge bearing mounting hole, the hinge bearing is disposed in the hinge bearing mounting hole, the bearing end cap is disposed on the hinge bearing mounting hole to fix the hinge bearing, and the rotating shaft rotatably passes through the hinge bearing and is fixedly connected to the second connecting member, thereby realizing the rotational connection between the first connecting member and the second connecting member.

[0018] Another objective of this invention is to provide a horizontal coating equipment that can easily open and close the chamber cover, is low in cost, easy to use and maintain, and helps to maintain the cleanliness of the coating environment.

[0019] To achieve this objective, the present invention adopts the following technical solution:

[0020] The horizontal coating equipment comprises a cavity, a cavity cover and the opening cover mechanism, the opening cover mechanism is connected to the cavity and the cavity cover, and the opening cover mechanism drives the cavity cover to rotate around the edge of the cavity cover, so that the cavity cover can open and close the cavity.

[0021] The horizontal coating equipment has the advantages that when the horizontal coating equipment is used, the cavity cover can be conveniently rotated around the side edge, the opening and closing of the cavity are realized, the load applied to the opening cover mechanism is reduced, a smaller power and smaller size opening cover mechanism can meet the pulling requirement of the cavity cover with larger weight, the problems of operation difficulty, large occupied space, high use cost and easy environmental pollution caused by large equipment can be avoided, the complex structure such as the hydraulic pipeline can be avoided, the opening requirement of the cavity cover of the large and small horizontal coating equipment can be met at a lower cost, and the horizontal coating equipment is easy to use and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of the horizontal coating equipment provided by the utility model;

[0023] Figure 2 is a perspective view of the connecting hinge in the utility model;

[0024] Figure 3 is a front view of the horizontal coating equipment when the cavity cover is at the second angle;

[0025] Figure 4 is a front view of the horizontal coating equipment when the cavity cover is at the first angle;

[0026] Figure 5 is a side view of the horizontal coating equipment when the cavity cover is at the second angle;

[0027] Figure 6 is a perspective view of the traction rope driving assembly in the utility model;

[0028] Figure 7 is a perspective view of the traction rope guiding assembly in the utility model.

[0029] In the drawings:

[0030] 10, cavity; 101, supporting leg; 11, cavity cover; 111, second connecting part;

[0031] 20, connecting hinge; 201, first connecting piece; 202, second connecting piece; 203, bearing end cover; 204, rotating shaft;

[0032] 30, rack; 301, first connecting part;

[0033] 40, traction rope driving assembly; 401, rotating driving member; 402, driving member support; 403, speed reducer; 404, coupling; 405, transmission shaft; 4051, first section; 4052, second section; 406, fixed bearing; 407, retractable rotating shaft; 408, bearing support;

[0034] 50, traction rope;

[0035] 60, suspension member;

[0036] 70, traction rope guiding assembly; 701, guiding wheel; 7011, guiding groove; 702, guiding wheel bearing; 703, guiding wheel support. DETAILED DESCRIPTION

[0037] The utility model will be described in further detail below in connection with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0038] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the present embodiment, the terms "upper", "lower", "right", "left" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0041] The following will be described according to the accompanying Figure 1 to the accompanying Figure 7 The present utility model provides a cover opening mechanism and a horizontal coating equipment.

[0042] As Figure 1 shown, in the present embodiment, the horizontal coating equipment includes a cover opening mechanism, a cavity cover 11 and a cavity 10. Among them, the cavity 10 and the cavity cover 11 are both common structures in the existing horizontal coating equipment, the cavity 10 has a supporting leg 101 and an upward opening, the supporting leg 101 is used to support the cavity 10, and the opening is used to put the battery piece to be processed into the cavity 10 and take out the processed battery piece. The cavity cover 11 is used to close the opening to form a closed space in the cavity 10, so as to realize the coating treatment of the battery piece.

[0043] As Figures 1-2 shown, in the present embodiment, the cover opening mechanism mainly includes a connecting hinge 20, a traction rope driving assembly 40 and a traction rope 50. Among them, the connecting hinge 20 includes a first connecting piece 201 and a second connecting piece 202, and the first connecting piece 201 and the second connecting piece 202 are rotatably connected. The first connecting piece 201 is connected to the cavity 10, and the second connecting piece 202 is connected to the edge of the cavity cover 11, so that the cavity cover 11 can rotate around its edge to open or close the cavity 10.

[0044] Exemplarily, in the present embodiment, the connecting hinge 20 includes a first connecting piece 201, a hinge bearing, a bearing end cover 203, a second connecting piece 202 and a rotating shaft 204. Among them, the first connecting piece 201 is arranged on the cavity 10 by bolt connection, and the second connecting piece 202 is also arranged on the cavity cover 11 by bolt connection. The first connecting piece 201 is provided with two protruding ear-shaped structures, each ear-shaped structure is provided with a hinge bearing mounting hole, the hinge bearing can be fixedly installed in the hinge bearing mounting hole, and the bearing end cover 203 can be covered in the hinge bearing mounting hole to fix the hinge bearing. One end of the rotating shaft 204 is rotatably arranged in one of the two hinge bearings, and the other end is rotatably arranged in the other of the two hinge bearings. At the same time, the second connecting piece 202 is fixedly connected with the middle part of the rotating shaft 204, so as to form a rotating connection between the first connecting piece 201 and the second connecting piece 202.

[0045] As shown in Figure 3 , Figure 4 , one end of the traction rope 50 is fixedly connected to the cavity cover 11. The traction rope driving assembly 40 is drivingly connected to the other end of the traction rope 50, and can exert a pulling force on the cavity cover 11 through the traction rope 50, so that the cavity cover 11 can be rotated to a first angle and a second angle about the rotation shaft 204 of the connecting hinge 20, respectively. As shown in Figure 3 , the cavity cover 11 is arranged in parallel to the horizontal direction at the second angle and is abutted from top to bottom to the cavity 10, so as to close the cavity 10. As shown in Figure 4 , the cavity cover 11 is arranged at an angle to the horizontal direction at the first angle, so as to open the cavity 10, facilitating the passage of battery pieces to and from the cavity 10 through the opening.

[0046] Through the cover opening mechanism, the cavity cover 11 can be conveniently rotated about its side edge, so as to realize the opening and closing of the cavity 10, and reduce the load applied to the traction rope 50 and the traction rope driving assembly 40, so that a small volume traction rope driving assembly 40 with small power can meet the traction needs of a cavity cover 11 with large weight, avoiding the problems of operation difficulty, large space occupation, high use cost and easy environmental pollution caused by large equipment, and avoiding complex structures such as hydraulic pipelines, so as to meet the opening needs of cavity covers 11 of large and small horizontal coating equipment at a low cost, and be easy to use and maintain.

[0047] It should be noted that in the present embodiment, the traction rope 50 can specifically adopt a structure such as a rope or a chain, as long as it can exert a pulling force, and is convenient to operate, occupies small space and has low use cost, and belongs to the scope to be protected by the present application.

[0048] As shown in Figure 4 , Figure 5 , the cover opening mechanism further comprises a rack 30. The rack 30 is in a "door" shape structure and is fixedly arranged outside the cavity 10, and the top of the rack 30 is arranged above the cavity 10. The traction rope 50 is drivingly connected to the rack 30, so that the traction rope 50 extends in a downward and oblique direction and is connected to the cavity cover 11, so as to exert an upward and oblique pulling force on the cavity cover 11 in the direction towards the top end of the rack 30 under the action of the traction rope driving assembly 40. It should be noted that the direction of exerting the pulling force is reasonably arranged according to the weight and shape of the cavity cover 11, which can be beneficial to reduce the load of the traction rope driving assembly 40, thereby further reducing the equipment cost.

[0049] Referring back to Figure 4As shown, preferably, in the present embodiment, the rack 30 is provided with a first connecting part 301, the cavity cover 11 is provided with a second connecting part 111, and the cover opening mechanism further comprises a hanging piece 60 which can be detachably connected between the first connecting part 301 and the second connecting part 111 to keep the cavity cover 11 at the first angle. Specifically, the first connecting part 301 and the second connecting part 111 both adopt an ear hook structure, and the hanging piece 60 can adopt a structure such as a rope, a chain, a rod, etc., and both ends of the hanging piece 60 are provided with hooks. When the cavity cover 11 is at the first angle, the hooks can be inserted into the ear hook structure, so that when the traction rope 50 breaks, loosens or has other abnormal phenomena, the hanging piece 60 can replace the traction rope 50 to provide a pulling force, so that the cavity cover 11 is kept at the first angle, avoiding damage to products, equipment or personnel caused by the falling of the cavity cover 11. When it is necessary to close the cavity 10, the hooks are only needed to be separated from the ear hook structure, and the cavity cover 11 can be lowered by the traction rope 50 to realize the closure of the cavity 10.

[0050] As shown in the drawings, Figure 5 The traction rope driving assembly 40 is fixedly arranged on the rack 30, and specifically comprises a rotating driving piece 401 and a retractable rotating shaft 407 for winding the traction rope 50, and the rotating driving piece 401 is drivingly connected to the retractable rotating shaft 407 and can drive the retractable rotating shaft 407 to rotate in a first direction and a second direction, respectively. The first direction can be a clockwise direction, and the second direction can be a counterclockwise direction. When the retractable rotating shaft 407 rotates in the first direction under the action of the rotating driving piece 401, the cavity cover 11 can be rotated from the second angle to the first angle, and when the retractable rotating shaft 407 rotates in the second direction under the action of the rotating driving piece 401, the cavity cover 11 can be rotated from the first angle to the second angle. Alternatively, in the present embodiment, the rotating driving piece 401 adopts a motor with a brake locking function, which can also keep the cavity cover 11 at a specific angle.

[0051] Preferably, in the present embodiment, one side edge of the cavity cover 11 is connected with two connecting hinges 20, and the cavity cover 11 is connected with two traction ropes 50. By arranging two, three or even more connecting hinges 20 and traction ropes 50 on the cavity cover 11, the stability of the cavity cover 11 during rotation and the safety of the cavity cover 11 when kept at the first angle can be improved, and the cover opening mechanism can also be applicable to larger cavity covers 11. Therefore, in the present embodiment, the number of connecting hinges 20 and the number of traction ropes 50 connected to each cavity cover 11 are not specifically limited, as long as the stability and safety of opening the cavity cover 11 can be met.

[0052] Further, in the embodiment, the cavity 10 has a large opening, and two cavity covers 11 are arranged above the cavity 10, each cavity cover 11 can shield half of the opening area, and the two cavity covers 11 can cooperatively close the entire opening to close the cavity 10. Each cavity cover 11 is connected with two connecting hinges 20 and two traction ropes 50, the connecting hinges 20 are arranged at the edges of one cavity cover 11 away from the other cavity cover 11, so that the two cavity covers 11 can be opened opposite to each other. One rack 30 is arranged on each side of the cavity 10, and a rotating drive 401 and two retractable rotating shafts 407 are arranged on each rack 30, one traction rope 50 is wound on each retractable rotating shaft 407, and the two traction ropes 50 on the same side can simultaneously exert a pulling force on one cavity cover 11, thereby reducing the load on each traction rope 50.

[0053] Specifically, as shown in Figure 5 、 Figure 6 , the traction rope driving assembly 40 further comprises a bearing support 408, a drive support 402, a fixed bearing 406 and a transmission shaft 405. Specifically, the bearing support 408 and the drive support 402 are fixedly connected to the rack 30, the bearing support 408 is used to fixedly install the fixed bearing 406, and the drive support 402 is used to fixedly install the rotating drive 401. The rotating drive 401 is connected to the transmission shaft 405, the transmission shaft 405 is rotatably arranged in the fixed bearing 406 and fixedly arranged in the two retractable rotating shafts 407. When the rotating drive 401 drives the transmission shaft 405 to rotate, the two retractable rotating shafts 407 can be simultaneously driven to rotate, thereby simultaneously exerting a pulling force on the cavity cover 11 through the two traction ropes 50.

[0054] Preferably, as shown in Figure 6 , a speed reducer 403 is further connected between the rotating drive 401 and the transmission shaft 405, the speed reducer 403 can reduce the rotating speed and increase the torque, thereby meeting the pulling force requirement of the large-weight cavity cover 11. Further, a shaft coupling 404 is further connected between the speed reducer 403 and the transmission shaft 405, which can conveniently drive connect the rotating drive 401, the speed reducer 403 and the transmission shaft 405, and can also protect the rotating drive 401 under heavy load.

[0055] Alternatively, the transmission shaft 405 is divided into a first segment 4051 and a second segment 4052, the first segment 4051 is fixedly arranged in one retractable rotating shaft 407, and the second segment 4052 is arranged in the other retractable rotating shaft 407. Further, the first segment 4051 and the second segment 4052 are connected by the shaft coupling 404. The shaft coupling 404 can avoid damage to the rotating drive 401 or the other retractable rotating shaft 407 when one retractable rotating shaft 407 fails. Of course, through the shaft coupling 404, the coaxiality requirement of the transmission shaft 405 can be reduced, thereby reducing the part cost of the transmission shaft 405.

[0056] Further, as shown in Figure 5 、 Figure 7 The cover opening mechanism further comprises a traction rope guide assembly 70, which comprises guide wheels 701, guide wheel bearings 702 and guide wheel supports 703. The guide wheel supports 703 are fixedly arranged above the rack 30, each guide wheel support 703 is provided with a guide wheel bearing 702, and each guide wheel 701 is rotatably connected with a guide wheel bearing 702 at both ends. The guide wheels 701 are rotatably arranged above the cavity 10 of the rack 30, and the traction rope 50 abuts the guide wheels 701 from top to bottom and changes the extension direction at the abutting position, which limits and fixes the traction rope 50. Exemplarily, the outer circumferential surface of the guide wheel 701 is provided with a guide groove 7011, and the traction rope 50 can be embedded in the guide groove 7011 to prevent the traction rope 50 from deviating when a pulling force is applied by the traction rope 50.

[0057] In this embodiment, the guide wheels 701 are arranged above the retractable shaft 407, so that the traction rope 50 extends from top to bottom after passing through the guide wheels 701, thereby facilitating the arrangement of the traction rope guide assembly 70 and the traction rope driving assembly 40 on the rack 30, and saving the cost of parts.

[0058] The utility model further provides a horizontal type coating equipment, the horizontal type coating equipment includes cavity 10, cavity cover 11 and above-mentioned cover opening mechanism, the cover opening mechanism is connected to cavity 10 and cavity cover 11, and the cover opening mechanism drives cavity cover 11 to rotate around the edge of cavity cover 11 to make cavity cover 11 can open and close cavity 10.

[0059] When using the horizontal type coating equipment, the cavity cover 11 can be conveniently rotated around one side edge, thereby realizing the opening and closing of the cavity 10, reducing the load applied to the cover opening mechanism, and enabling a cover opening mechanism with smaller power and smaller size to meet the traction needs of a cavity cover 11 with larger weight, thereby avoiding the problems of large equipment, such as operation difficulty, large space occupation, high use cost and easy environmental pollution, and avoiding complex structures such as hydraulic pipelines, so as to meet the opening needs of cavity covers 11 of large and small horizontal type coating equipment at a lower cost, and be easy to use and maintain.

[0060] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. An uncovering mechanism for a horizontal coating apparatus, the horizontal coating apparatus comprising a chamber and a chamber cover, characterized in that, The cover opening mechanism comprises: a connecting hinge comprising a first connecting member and a second connecting member, the first connecting member is arranged on the cavity, the second connecting member is arranged on the cavity cover, and the first connecting member and the second connecting member are rotationally connected, so that the cavity cover can open or close the cavity; a traction rope, one end of the traction rope is connected with the cavity cover; a traction rope driving assembly, the other end of the traction rope is connected with the traction rope driving assembly, and the traction rope driving assembly can exert a pulling force on the cavity cover through the traction rope, so that the cavity cover can be rotated to a first angle and a second angle around the connecting hinge, respectively, the cavity cover is arranged at an angle with the horizontal direction at the first angle to open the cavity, and the cavity cover closes the cavity at the second angle.

2. The cover opening mechanism according to claim 1, wherein the cover opening mechanism further comprises a rack, at least part of the rack is arranged above the cavity, and the traction rope driving assembly is arranged on the rack, the traction rope driving assembly can drive the traction rope to exert a pulling force on the cavity cover in a direction towards the top end of the rack.

3. The cover opening mechanism according to claim 2, wherein the traction rope driving assembly comprises a rotating driving member and a winding and unwinding rotating shaft, the winding and unwinding rotating shaft is used for winding the traction rope, and the rotating driving member is transmissionally connected with the winding and unwinding rotating shaft and can drive the winding and unwinding rotating shaft to rotate in a first direction and a second direction, respectively, the first direction and the second direction are opposite directions.

4. The cover opening mechanism according to claim 3, wherein the traction rope driving assembly further comprises a transmission shaft, a speed reducer and a shaft coupling, the rotating driving member is transmissionally connected with the transmission shaft through the speed reducer and the shaft coupling, and the transmission shaft is transmissionally connected with the winding and unwinding rotating shaft.

5. The cover opening mechanism according to claim 4, wherein the traction rope driving assembly further comprises a fixed bearing and a bearing support, the bearing support is arranged on the rack, the fixed bearing is arranged on the bearing support, and the transmission shaft is rotationally arranged in the fixed bearing.

6. The cover opening mechanism according to claim 2, wherein the cover opening mechanism further comprises a traction rope guiding assembly, the traction rope guiding assembly is arranged on the rack and above the cavity; the traction rope guiding assembly comprises a guiding wheel, a guiding wheel bearing and a guiding wheel support, the guiding wheel support is arranged on the rack, the guiding wheel bearing is arranged on the guiding wheel support, the guiding wheel is rotationally connected in the guiding wheel bearing, and the traction rope is embedded in a guiding groove of the guiding wheel.

7. The cover opening mechanism according to claim 2, wherein the rack is provided with a first connecting part, the cavity cover is provided with a second connecting part, and the cover opening mechanism further comprises a hanging member, the hanging member is used for detachably connecting between the first connecting part and the second connecting part, so as to keep the cavity cover at the first angle.

8. The cover opening mechanism according to claim 1, wherein At least two of the connecting hinges are connected to a side edge of the cover; and / or, At least two of the traction ropes are connected to the cover.

9. The cover opening mechanism according to claim 1, wherein, The connecting hinge further comprises a hinge bearing, a rotating shaft and a bearing end cover, the first connecting member is provided with a hinge bearing mounting hole, the hinge bearing is arranged in the hinge bearing mounting hole, the bearing end cover is arranged on the hinge bearing mounting hole to fix the hinge bearing, and the rotating shaft is rotatably arranged in the hinge bearing and fixedly connected to the second connecting member.

10. A horizontal coating apparatus characterized by comprising: The cover opening mechanism according to any one of claims 1-9 is connected to a cavity and a cover of a cavity, and drives the cover to rotate around an edge of the cover, so that the cover can open and close the cavity.

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