Leather shell machine edge covering device for covering edge of skylight part of leather shell

By designing a edging device for the leather-shell sunroof part, including a hoisting rod, a push-pull cylinder and a edging assembly, the problems of inconvenient assembly and low efficiency of the existing edging mechanism are solved, and efficient edging operation for the leather-shell sunroof part is achieved.

CN222628814UActive Publication Date: 2025-03-18NANJING BOYI PACKAGING DESIGN CO LTD
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Patent Information

Application Number
CN202421389006.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-03-18
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The edge-covering mechanism of the existing leather shell sunroof is not convenient to be assembled above the leather shell machine edge-covering conveying equipment, and it is impossible to effectively perform auxiliary pressing and edge-covering around, which affects the efficiency of the leather shell machine.

Method used

A crust machine edging device including a lifting rod, a lifting cylinder, a push-pull cylinder, a mounting base and a edging assembly and an auxiliary assembly is designed. Through the cooperation of these components, the inner and outer clamping and pressing of the sunroof part is achieved, simplifying the edge wrapping operation.

Benefits of technology

This device is easy to be assembled above the sheath machine edge conveying device, and can effectively perform auxiliary pressing around edges, improving the convenience and efficiency of edge wrap operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of skylight hemming, in particular to a leather shell machine hemming device for hemming a leather shell skylight part, which comprises a hoisting rod, a hemming component and an auxiliary component which are the same are arranged on the periphery below the hoisting rod, and an upper plate and a lower plate are arranged below the hemming component and the auxiliary component. A lower hinged support and an upper hinged support which are hinged through a hinged shaft are assembled between the top of the lower plate and the bottom of the edge covering assembly, telescopic inner plates are assembled in the lower plate and the upper plate in an inserted mode, an abutting back ring is arranged on the back of the lower plate, an inner supporting block is fixedly arranged at the bottom end of the hoisting rod, and a lower supporting cylinder and an upper supporting cylinder are arranged on the side edge of the inner supporting block in a staggered mode; the lower supporting cylinder is fixed to the back of the edge covering assembly, and the upper supporting cylinder is fixed to the back of the auxiliary assembly. The device can be conveniently assembled above a leather case machine edge covering conveying device according to use requirements and extend into a leather case skylight to carry out peripheral auxiliary pressing edge covering.
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Description

Technical Field

[0001] The utility model relates to the technical field of skylight hemming, in particular to a leather case machine hemming device used for hemming the skylight part of a leather case. Background Art

[0002] The production and processing of leather cases is generally achieved through leather case machines. After the surface paper is coated with glue, it is fitted with the corresponding product and the edge is wrapped. For the edge wrapping of the skylight part, the surface paper needs to be wrapped on the inner surface and inside of the skylight part;

[0003] In this regard, China's patent application number: CN202021738264.4 discloses a skylight hemming machine, including a folding mechanism; the folding mechanism has a carrying plate, a tray used in conjunction with the carrying plate, and a first driving member for driving the tray to move, the carrying plate is provided with a perforation penetrating the carrying plate, and the first driving member drives the tray in and out of the perforation; the carrying plate is used to carry the body of the facial paper, the cardboard is pressed on the body of the facial paper carried by the carrying plate, and the flange of the facial paper carried by the carrying plate is located in the perforation; in actual use, the body of the facial paper is placed and pressed on the carrying plate, and then the cardboard is pressed on the body of the facial paper carried by the carrying plate, and the flange is located between the perforation and the skylight hole of the cardboard, and then the first driving member drives the tray to enter the perforation so as to automatically bend the flange into the skylight hole, thereby realizing automatic bending of the flange, without the need for operators to manually bend the flange, thereby improving the bending efficiency of the flange and assisting in improving the efficiency of skylight hemming;

[0004] However, the existing hemming mechanism at the shell skylight is inconvenient to be assembled above the shell machine hemming transmission device according to the use needs, and extends into the shell skylight to perform auxiliary pressing hemming around, which affects the use efficiency of the shell machine;

[0005] Therefore, in order to solve the above problems, a leather case machine edge wrapping device for edge wrapping of a leather case skylight portion is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a case machine edge wrapping device for the case skylight portion, so as to solve the problem that the existing case skylight portion edge wrapping mechanism proposed in the above background technology is inconvenient to be assembled above the case machine edge wrapping transmission equipment according to use needs and extends into the case skylight to perform auxiliary pressing and edge wrapping on all sides, thus affecting the use efficiency of the case machine.

[0007] To achieve the above object, the utility model provides the following technical solution: a case machine hemming device for hemming the skylight part of a case, comprising a hanging rod, a hanging tube is sleeved on the upper part of the hanging rod, a push-pull cylinder is installed on the upper end of the hanging tube, and a mounting seat is installed on the upper part of the push-pull cylinder;

[0008] The same edging components and auxiliary components are arranged around the bottom of the lifting rod, and two groups of the edging components and auxiliary components are respectively located around the front, back, left and right sides of the bottom of the lifting rod, and an upper plate and a lower plate are arranged below the edging components and the auxiliary components, and a lower hinge seat and an upper hinge seat are hingedly connected by a hinge shaft between the top of the lower plate and the bottom of the edging component, and telescopic inner plates are inserted and installed inside the lower plate and the upper plate, and a pressure back ring is arranged on the back of the lower plate, and an inner support block is fixed at the bottom end of the lifting rod, and a lower support tube and an upper support tube are staggered on the side of the inner support block, and the lower support tube is fixed to the back of the edging component, and the upper support tube is fixed to the back of the auxiliary component.

[0009] Preferably, an adjusting screw is threadedly inserted into the top of the edging component, an inner clamping ring is fixed to the lower end of the adjusting screw, an outer clamping sleeve is sleeved on the outer side of the inner clamping ring, and the outer clamping sleeve is fixed on the surface of the upper plate.

[0010] Preferably, limiting slide bars are assembled on both sides of the upper plate surface, and the limiting slide bars are inserted through both sides of the top of the edging assembly. A pull cap is fixed to the upper end of the limiting slide bar, and an elastic spring is sleeved on the lower part of the limiting slide bar, and the elastic spring is located between the top wall of the edging assembly and the upper plate.

[0011] Preferably, a side sliding pin is fixed to the side of the telescopic inner plate, and the side sliding pin is inserted and assembled on the top side of the upper plate, and a locking nut is threadedly sleeved on the outer end of the side sliding pin, and a side sliding groove corresponding to the locking nut is opened on the top side of the upper plate, and pressing teeth are alternately arranged on the bottom of the telescopic inner plate and the bottom of the upper plate, and a limiting slide bar is fixed to the outer wall of the telescopic inner plate, and the limiting slide bar is inserted inside the upper plate, and an auxiliary strip is integrally arranged on the outer side of the upper plate.

[0012] Preferably, a pressure hinge is fixed to the upper end of the pressure back ring, and an assembly hinge is hinged on the side of the pressure hinge through a hinge pin, and the assembly hinge is fixed to the lower back of the edging component, and a pressure head is hinged on the upper end of the pressure hinge through a hinge pin, and a telescopic cylinder is installed on the top of the pressure head, and the telescopic end of the telescopic cylinder is fixed to the upper surface of the pressure head, and a clamp is fixed to the outer wall of the telescopic cylinder through the telescopic cylinder, and a support hinge is hinged on the side of the clamp, and the support hinge is fixed to the center of the back of the edging component, and a rubber strip is fixed inside the pressure back ring, and the inner end of the rubber strip is fixed to the back of the lower plate, and the outer end of the rubber strip is fixed to a limiting plate.

[0013] Preferably, supporting inner rods are inserted and fixed inside the lower supporting tube and the upper supporting tube, and the two groups of supporting inner rods are respectively fixed on the back of the edging component and the auxiliary component, and fine-tuning screws are fixed on the surface of the supporting inner rods. The fine-tuning screws are inserted and assembled on the top of the lower supporting tube, and a fine-tuning groove corresponding to the fine-tuning screw is opened on the top of the lower supporting tube.

[0014] Preferably, a hanging frame is supported and assembled between the mounting seat and the hanging tube, a mounting hole is opened on the inner side of the mounting seat, a pressure plate is fixed on the top of the hanging rod, and the pressure plate is located inside the hanging tube, the pressure plate is fixed to the telescopic end of the push-pull cylinder, an auxiliary spring is sleeved on the outside of the hanging rod, the auxiliary spring is located between the pressure plate and the bottom wall of the hanging tube, and a telescopic hole corresponding to the hanging rod is opened at the bottom of the hanging tube.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model can be easily assembled above the hemming conveying device of the leather case machine according to the use requirements and extend into the interior of the leather case skylight to perform auxiliary pressing hemming around the edges;

[0016] 1. The utility model is provided with an edge wrapping component and an auxiliary component, and with the cooperation of the upper plate, the lower plate and the telescopic inner plate, it is convenient to clamp and press the skylight inside and outside, making the edge wrapping operation more convenient and efficient. During operation, the lower plate is pushed with the assistance of the pressing back ring, so that the lower plate cooperates with the upper plate to squeeze each other, thereby completing the pressing inside and outside. Through this design, the convenience and practicality of the edge wrapping mechanism are improved.

[0017] 2. The utility model is provided with a lifting tube, a push-pull cylinder, a mounting seat and an inner support block, which facilitates the support and lifting of the edge wrapping components and auxiliary components, making it more convenient to use and easy to assemble it above the edge wrapping conveying equipment, making subsequent operations more convenient. Through this design, the convenience and practicality of the edge wrapping mechanism are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a frontal perspective schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a front view cross-sectional perspective schematic diagram of the lower structure of the utility model;

[0020] Figure 3 It is a front view cross-sectional perspective schematic diagram of the upper structure of the utility model;

[0021] Figure 4 This is a top-down perspective schematic diagram of the local structure of the inner support block of the utility model;

[0022] Figure 5 It is a side perspective schematic diagram of the hemming assembly structure of the utility model in the hemming pressing state;

[0023] In the figure: 100, lifting rod; 110, lifting tube; 120, push-pull cylinder; 121, pressure plate; 122, auxiliary spring; 123, telescopic hole; 130, mounting seat; 131, lifting frame; 132, mounting hole; 200, edge binding assembly; 210, upper plate; 211, adjusting screw; 212, inner clamping ring; 213, outer clamping sleeve; 214, limit slide bar; 215, pull cap; 216, elastic spring; 220, lower plate; 221, upper hinge seat; 222, lower hinge seat; 230, telescopic inner plate; 231, edge slide pin ; 232, locking nut; 233, side slide; 234, pressing tooth; 235, limiting slide; 236, auxiliary strip; 240, pressing back ring; 241, pressing hinge seat; 242, assembly hinge seat; 243, pressing head; 244, telescopic cylinder; 245, clamp; 246, support hinge seat; 247, rubber pull strip; 248, limiting plate; 300, auxiliary component; 400, inner support block; 410, lower support cylinder; 411, support inner rod; 412, fine-tuning screw; 413, fine-tuning slide; 420, upper support cylinder. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5 , an embodiment provided by the utility model:

[0026] A case hemming device for hemming a case skylight part, comprising a hanging rod 100, a hanging tube 110 is sleeved on the upper part of the hanging rod 100, a push-pull cylinder 120 is mounted on the upper end of the hanging tube 110, and a mounting seat 130 is mounted on the upper part of the push-pull cylinder 120;

[0027] The same edging components 200 and auxiliary components 300 are arranged around the bottom of the hanging rod 100. The two groups of edging components 200 and auxiliary components 300 are respectively located around the bottom of the hanging rod 100, front, back, left and right. An upper plate 210 and a lower plate 220 are arranged below the edging components 200 and the auxiliary components 300, and a lower hinge seat 222 and an upper hinge seat 221 are hingedly connected by a hinge shaft between the top of the lower plate 220 and the bottom of the edging component 200. A telescopic inner plate 230 is inserted and installed inside the lower plate 220 and the upper plate 210, and a back ring 240 is arranged on the back of the lower plate 220. An inner support block 400 is fixed at the bottom end of the hanging rod 100, and a lower support tube 410 and an upper support tube 420 are staggered on the side of the inner support block 400. The lower support tube 410 is fixed to the back of the edging component 200, and the upper support tube 420 is fixed to the back of the auxiliary component 300.

[0028] Furthermore, an adjusting screw pin 211 is threadedly inserted into the top of the edging component 200, an inner clamping ring 212 is fixed to the lower end of the adjusting screw pin 211, an outer clamping ring 213 is sleeved on the outer side of the inner clamping ring 212, and the outer clamping ring 213 is fixed to the surface of the upper plate 210. Through this design, it is convenient to adjust the distance between the upper plate 210 and the top of the edging component 200, and it is convenient to adjust according to the thickness of the skin shell, making subsequent use more convenient;

[0029] Furthermore, the upper plate 210 is provided with limit slide bars 214 on both sides of the surface, and the limit slide bars 214 are inserted through the top two sides of the edge binding assembly 200, and the upper end of the limit slide bars 214 is fixed with a pull cap 215, and the lower part of the limit slide bars 214 is sleeved with an elastic spring 216, and the elastic spring 216 is located between the top wall of the edge binding assembly 200 and the upper plate 210. Through this design, it is convenient to assist the upper plate 210 and the two sides of the edge binding assembly 200 in limiting the position.

[0030] Further, a side sliding pin 231 is fixed to the side of the telescopic inner plate 230, and the side sliding pin 231 is inserted and assembled on the top side of the upper plate 210, and a locking nut 232 is threadedly sleeved on the outer end of the side sliding pin 231, and a side sliding groove 233 corresponding to the locking nut 232 is opened on the top side of the upper plate 210, and pressing teeth 234 are staggeredly arranged at the bottom of the telescopic inner plate 230 and the bottom of the upper plate 210, and a limiting slide bar 235 is fixed to the outer wall of the telescopic inner plate 230, and the limiting slide bar 235 is inserted in the upper plate 210, and an auxiliary strip 236 is integrally arranged on the outer side of the upper plate 210. Through this design, it is convenient to telescopically assemble the telescopic inner plate 230;

[0031] Further, a pressing hinge seat 241 is fixed to the upper end of the pressing back ring 240, and an assembly hinge seat 242 is hinged to the side of the pressing hinge seat 241 through a hinge nail, and the assembly hinge seat 242 is fixed to the lower back of the edge wrapping component 200, and a pressing head 243 is hinged to the upper end of the pressing hinge seat 241 through a hinge nail, and a telescopic cylinder 244 is assembled on the top of the pressing head 243, and the telescopic end of the telescopic cylinder 244 is fixed to the upper surface of the pressing head 243, and a clamp 245 is fixed to the outer wall of the telescopic cylinder 244 through the telescopic cylinder 244, and a support hinge seat 246 is hinged to the side of the clamp 245, and the support hinge seat 246 is fixed to the back center of the edge wrapping component 200, and a rubber pull strip 247 is fixed inside the pressing back ring 240, and the inner end of the rubber pull strip 247 is fixed to the back of the lower plate 220, and the outer end of the rubber pull strip 247 is fixed to a limiting plate 248, through this design, it is convenient to resist and drive the pressing back ring 240;

[0032] Furthermore, inner support rods 411 are inserted and fixed inside the lower support tube 410 and the upper support tube 420. The two groups of inner support rods 411 are respectively fixed on the back of the edge-wrapping component 200 and the auxiliary component 300. Fine-tuning screw pins 412 are fixed on the surface of the inner support rods 411. The fine-tuning screw pins 412 are inserted and assembled on the top of the lower support tube 410. The top of the lower support tube 410 is provided with a fine-tuning slide groove 413 corresponding to the fine-tuning screw pins 412. This design facilitates the hoisting and deployment of the edge-wrapping component 200 and the auxiliary component 300.

[0033] Furthermore, a hanging frame 131 is supported and assembled between the mounting seat 130 and the hanging tube 110, and a mounting hole 132 is opened on the inner side of the mounting seat 130. A pressure plate 121 is fixed on the top of the hanging rod 100, and the pressure plate 121 is located inside the hanging tube 110. The pressure plate 121 is fixed to the telescopic end of the push-pull cylinder 120. An auxiliary spring 122 is mounted on the outside of the hanging rod 100, and the auxiliary spring 122 is located between the pressure plate 121 and the bottom wall of the hanging tube 110. A telescopic hole 123 corresponding to the hanging rod 100 is opened at the bottom of the hanging tube 110. Through this design, the hanging assistance and telescopic lifting of the hanging rod 100 are facilitated, making it more convenient to use.

[0034] Working principle: When assembling and using, this device is assembled above the conveying and hemming equipment through relevant frames, so that it is located below this device when the leather shell is conveyed and hemmed. During hemming, the surface paper is initially attached to the outside of the skylight after being glued, and then the push-pull cylinder 120 is controlled to contact the pressure plate 121, driving the lifting rod 100 to descend inside the lifting tube 110, and then when the push-pull cylinder 120 retracts, it assists in rising under the elastic force of the auxiliary spring 122, so as to facilitate the auxiliary lifting and lowering of the hemming assembly 200 and the auxiliary assembly 300, and facilitate pulling inside the skylight, and then when the upper plate 210 is driven to contact the surface of the leather shell skylight on the upper part of the hemming assembly 200 and the auxiliary assembly 300, the telescopic cylinder 244 is controlled to contact the pressure head 243, and the pressure hinge seat 241 is driven to rotate and flip with the cooperation of the assembly hinge seat 242, and at the same time, when holding The hinged connection of the hoop 245 and the support hinge seat 246 makes the back ring 240 press against the lower plate 220 to flip upward, thereby cooperating with the upper plate 210 to press and wrap the skylight part inside and outside, and then the telescopic cylinder 244 retracts, and with the cooperation of the rubber pull strip 247 and the limit plate 248, the lower plate 220 is assisted to fall vertically for subsequent use. During operation, by pulling and retracting the inner plate 230, it is convenient to expand and adjust the upper plate 210 and the lower plate 220 so that it conforms to the skylight window diameter and is convenient for covering and pressing. Then, the side slide pin 231 and the locking nut 232 cooperate to lock the limit. Furthermore, with the cooperation of the lower support tube 410 and the support inner rod 411, the edging assembly 200 and the auxiliary assembly 300 are also contracted and expanded, so as to facilitate the auxiliary adjustment according to the skylight window diameter. The operation ends here.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A casing machine hemming device for hemming a casing skylight portion, comprising a hanging rod (100), a hanging tube (110) sleeved on the upper portion of the hanging rod (100), a push-pull cylinder (120) mounted on the upper end of the hanging tube (110), and a mounting seat (130) mounted on the upper portion of the push-pull cylinder (120); Features: The same edge-wrapping assembly (200) and auxiliary assembly (300) are arranged around the bottom of the hanging rod (100), and two groups of the edge-wrapping assembly (200) and auxiliary assembly (300) are respectively located around the bottom of the hanging rod (100) in the front, back, left, and right directions. An upper plate (210) and a lower plate (220) are arranged below the edge-wrapping assembly (200) and the auxiliary assembly (300), and a lower hinge seat (222) and an upper hinge seat (220) are hingedly connected by a hinge shaft between the top of the lower plate (220) and the bottom of the edge-wrapping assembly (200). 1), the lower plate (220) and the upper plate (210) are both inserted with a telescopic inner plate (230), and the back of the lower plate (220) is provided with a pressing back ring (240), the bottom end of the lifting rod (100) is fixed with an inner support block (400), and the side of the inner support block (400) is staggered with a lower support tube (410) and an upper support tube (420), the lower support tube (410) is fixed to the back of the edging component (200), and the upper support tube (420) is fixed to the back of the auxiliary component (300).

2. A case machine hemming device for hemming the skylight part of a case according to claim 1, characterized in that: An adjusting screw pin (211) is threadedly inserted into the top of the edging component (200), an inner clamping ring (212) is fixed to the lower end of the adjusting screw pin (211), an outer clamping ring (213) is sleeved on the outside of the inner clamping ring (212), and the outer clamping ring (213) is fixed on the surface of the upper plate (210).

3. The hemming device for hemming the skylight part of a leather case according to claim 1, characterized in that: Limiting slide bars (214) are mounted on both sides of the surface of the upper plate (210). The limiting slide bars (214) are inserted through both sides of the top of the edge binding assembly (200). A pull cap (215) is fixed to the upper end of the limiting slide bar (214). An elastic spring (216) is sleeved on the lower part of the limiting slide bar (214). The elastic spring (216) is located between the top wall of the edge binding assembly (200) and the upper plate (210).

4. The hemming device for a leather case machine used for hemming the skylight part of a leather case according to claim 1, characterized in that: A side sliding pin (231) is fixed to the side of the telescopic inner plate (230), and the side sliding pin (231) is inserted and assembled on the top side of the upper plate (210), and a locking nut (232) is threadedly sleeved on the outer end of the side sliding pin (231), and a side sliding groove (233) corresponding to the locking nut (232) is opened on the top side of the upper plate (210), and pressing teeth (234) are alternately arranged at the bottom of the telescopic inner plate (230) and the bottom of the upper plate (210), and a limiting sliding strip (235) is fixed to the outer wall of the telescopic inner plate (230), and the limiting sliding strip (235) is inserted in the interior of the upper plate (210), and an auxiliary strip (236) is integrally arranged on the outer side of the upper plate (210).

5. The hemming device for a leather case machine used for hemming the skylight part of a leather case according to claim 1, characterized in that: A pressing hinge seat (241) is fixed to the upper end of the pressing back ring (240), and a mounting hinge seat (242) is hinged to the side of the pressing hinge seat (241) through a hinge pin, and the mounting hinge seat (242) is fixed to the lower back of the edge wrapping component (200), and a pressing head (243) is hinged to the upper end of the pressing hinge seat (241) through a hinge pin, and a telescopic cylinder (244) is installed on the top of the pressing head (243), and the telescopic end of the telescopic cylinder (244) is fixed to the upper surface of the pressing head (243). The outer wall of the telescopic cylinder (244) is fixed with a clamp (245) through the telescopic cylinder (244), and the side of the clamp (245) is hinged with a support hinge seat (246), and the support hinge seat (246) is fixed at the back center of the edge wrapping component (200). A rubber pull strip (247) is fixed inside the pressure back ring (240), and the inner end of the rubber pull strip (247) is fixed to the back of the lower plate (220), and the outer end of the rubber pull strip (247) is fixed with a limit plate (248).

6. The hemming device for a leather case machine used for hemming the skylight part of a leather case according to claim 1, characterized in that: The lower support tube (410) and the upper support tube (420) are both inserted and fixed with support inner rods (411), and the two groups of support inner rods (411) are respectively fixed on the back of the edging component (200) and the auxiliary component (300), and a fine-tuning screw pin (412) is fixed on the surface of the support inner rod (411), and the fine-tuning screw pin (412) is inserted and assembled on the top of the lower support tube (410), and a fine-tuning slide groove (413) corresponding to the fine-tuning screw pin (412) is opened on the top of the lower support tube (410).

7. The hemming device for hemming the skylight part of a leather case according to claim 1, characterized in that: A hanging frame (131) is supported and assembled between the mounting seat (130) and the hanging tube (110); a mounting hole (132) is provided on the inner side of the mounting seat (130); a pressure plate (121) is fixed on the top of the hanging rod (100), and the pressure plate (121) is located inside the hanging tube (110); the pressure plate (121) is fixed to the telescopic end of the push-pull cylinder (120); an auxiliary spring (122) is sleeved on the outside of the hanging rod (100), and the auxiliary spring (122) is located between the pressure plate (121) and the bottom wall of the hanging tube (110); and a telescopic hole (123) corresponding to the hanging rod (100) is provided at the bottom of the hanging tube (110).

Citation Information

Patent Citations

  • Skylight covering machine

    CN213137997U