Roller shutter baffle mechanism

Abstract

The utility model relates to the technical field of electrician maintenance, in particular to a roller shutter baffle plate mechanism, which comprises a mounting unit, an upper baffle plate, a lower baffle plate, and sliding components arranged on two sides of the upper baffle plate and the lower baffle plate; the transmission unit comprises a fixed pin shaft, connecting assemblies arranged on the two sides of the upper baffle and the two sides of the lower baffle, a rotating assembly arranged on the fixed pin shaft, a pushing assembly arranged on the rotating assembly and a reset assembly arranged on the pushing assembly. And a locking unit. The roller shutter baffle plate mechanism has the beneficial effects that the position of the padlock is optimized, the novel roller shutter baffle plate mechanism is convenient to operate, the operation difficulty of the padlock during power-off maintenance of an operator can be reduced, and the operation time is saved; in addition, the novel roller shutter baffle mechanism is convenient to observe, so that an operator can clearly observe the state of the padlock in the power transmission process, and the situation that equipment is damaged due to the fact that the operator forgets to take the padlock is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical maintenance, in particular to a rolling shutter baffle mechanism. Background Art

[0002] The rolling shutter is a safety protection device used by electricians to prevent electric shock accidents caused by negligence during operation. At present, when the equipment is powered off and the switch is not in the "working" position, the live contact protection baffle in the equipment cabinet drops due to gravity, shielding the live part of the switch to prevent operators from accidentally touching the live part and causing accidents.

[0003] To prevent the baffle from being in an abnormal position, the baffle needs to be fixed. The existing fixing method is to lock the baffle with a mechanical lock, but the current equipment padlock is generally located on the inner side of the switch cabinet. Operators need to lock the padlock at a specific angle during the padlocking process, which makes padlocking difficult and risky. When the equipment is powered on, the padlock needs to be removed to expose the live parts, but because the padlock is located on the inner side and is difficult to observe, the operator may forget to remove the lock and directly push the switch to the working position, which will damage the switch and cause equipment failure. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the difficulty and risk of padlocking in the above or prior art, and the difficulty in observation, there is a problem that the operator forgets to take off the lock and directly pushes the switch to the working position, the present utility model is proposed.

[0006] Therefore, the utility model aims to provide a rolling shutter baffle mechanism.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an installation unit, including an upper baffle and a lower baffle, and a sliding component arranged on both sides of the upper baffle and the lower baffle; a transmission unit, including a fixed pin shaft, a connecting component arranged on both sides of the upper baffle and the lower baffle, a rotating component arranged on the fixed pin shaft, a pushing component arranged on the rotating component, and a reset component arranged on the pushing component; a locking unit, including a moving component arranged on the pushing component, a limiting component arranged on the moving component, a positioning component arranged on the moving component, and an extrusion component arranged on the moving component.

[0008] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the sliding assembly includes a connecting seat arranged on the upper baffle and the lower baffle, a positioning piece arranged on the connecting seat, and a vertical rod arranged on the positioning piece.

[0009] As a preferred solution of the rolling shutter baffle mechanism described in the utility model, the connecting assembly includes a connecting rod 1 arranged on one side of the connecting seat located above, a connecting rod 2 arranged on one side of the connecting seat located below, and a rotating shaft arranged at both ends of the connecting rod 1 and the connecting rod 2.

[0010] As a preferred solution of the rolling shutter baffle mechanism described in the utility model, wherein: the rotating assembly includes an L-shaped plate arranged on the fixed pin shaft, a connecting plate arranged on the L-shaped plate, and a guide groove arranged on the outer side of the connecting plate; the connecting plate is rotatably connected through a rotating shaft and connecting rod one or connecting rod two.

[0011] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the pushing assembly includes a sliding rod arranged in the guide groove, a pushing rod arranged on the sliding rod, a fixing seat 1 and a fixing seat 2 arranged outside the pushing rod, and an earring arranged on the pushing rod; the pushing rod is slidably connected in the fixing seat 1 and the fixing seat 2.

[0012] As a preferred solution of the rolling shutter baffle mechanism of the utility model, wherein: the reset assembly includes a limit ring arranged outside the push rod, and a spring 1 arranged on the limit ring;

[0013] The limiting ring is arranged between the first fixing seat and the second fixing seat, and the other end of the first spring matches with one side of the second fixing seat.

[0014] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the moving component includes a pushing hole arranged at one end of the pushing rod, a locking rod arranged in the pushing hole, and a through groove arranged outside the pushing rod.

[0015] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the limiting assembly includes a trapezoidal block arranged outside the locking rod, a displacement block arranged in the through groove, and a limiting groove with an inner wall arranged on the fixed seat; the displacement block and the limiting groove cooperate with each other.

[0016] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the positioning assembly includes a positioning groove arranged on the inner wall of the through groove, positioning blocks arranged on both sides of the displacement block, a slide groove arranged on the trapezoidal block, and a slider arranged on the displacement block; the slide groove and the slider cooperate with each other.

[0017] As a preferred solution of the rolling shutter baffle mechanism of the utility model, the extrusion assembly includes a limit rod arranged at the other end of the locking rod, a second spring arranged on the limit rod, an inclined surface arranged on the displacement block, and an extrusion surface arranged on the other side of the fixed seat.

[0018] The beneficial effects of the utility model are as follows: the padlock position is optimized, and the new rolling shutter baffle mechanism is easy to operate, which can reduce the difficulty of padlock operation for operators during power outages for maintenance and save operation time; in addition, the new rolling shutter baffle mechanism is easy to observe, allowing the operator to clearly observe the padlock status during power supply, thereby preventing equipment damage caused by forgetting to remove the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the rolling shutter baffle mechanism of the utility model.

[0021] Figure 2 It is a schematic diagram of the overall structure of the rolling shutter baffle mechanism of the utility model.

[0022] Figure 3 It is a cross-sectional schematic diagram of the locking unit in the rolling shutter baffle mechanism of the utility model.

[0023] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0024] Figure 5 It is a partial structural schematic diagram of the rolling shutter baffle mechanism of the utility model. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1

[0030] Reference Figure 1 to Figure 2 , which is the first embodiment of the utility model, and this embodiment provides a rolling shutter baffle mechanism, which can reduce the difficulty of operating the padlock when the operator is out of power for maintenance and save operation time. It includes an installation unit 100, including an upper baffle 101 and a lower baffle 102, and a sliding component 103 arranged on both sides of the upper baffle 101 and the lower baffle 102; a transmission unit 200, including a fixed pin shaft 201, a connecting component 202 arranged on both sides of the upper baffle 101 and the lower baffle 102, a rotating component 203 arranged on the fixed pin shaft 201, a pushing component 204 arranged on the rotating component 203, and a reset component 205 arranged on the pushing component 204, and the sliding component 103 includes a connecting seat 103a arranged on the upper baffle 101 and the lower baffle 102, a positioning piece 103b arranged on the connecting seat 103a, and a vertical rod 103c arranged on the positioning piece 103b.

[0031] Specifically, the connecting seat 103a is arranged on both sides of the upper baffle 101 and the lower baffle 102, and a positioning piece 103b is arranged at both the upper and lower ends thereof, and a circular hole is opened on the surface of the positioning piece 103b, and a vertical rod 103c is arranged in the circular hole, so that the positions of the upper baffle 101 and the lower baffle 102 are limited and can only slide along the vertical direction of the vertical rod 103c. The connecting seats 103a on both sides of the upper baffle 101 are rotatably connected to the connecting rod 1 202a through the rotating shaft 202c, and the connecting seats 103a on both sides of the lower baffle 102 are rotatably connected to the connecting rod 2 202b through the rotating shaft 202c.

[0032] Further, the connecting assembly 202 includes a connecting rod 1 202a disposed on one side of the upper connecting seat 103a, a connecting rod 202b disposed on one side of the lower connecting seat 103a, and a rotating shaft 202c disposed at both ends of the connecting rod 1 202a and the connecting rod 2 202b. The rotating assembly 203 includes an L-shaped plate 203a disposed on the fixed pin 201, a connecting plate 203b disposed on the L-shaped plate 203a, and a guide groove 203c disposed on the outer side of the connecting plate 203b; the connecting plate 203b is connected to the connecting rod 1 202a or the connecting rod 202b through the rotating shaft 202c. b Rotational connection, the fixed pin 201 is fixedly installed in the cabinet, and its external rotational connection is two groups of L-shaped plates 203a, the two groups of L-shaped plates 203a are diagonally arranged, and a connecting plate 203b is arranged at the lower end of the L-shaped plate 203a, and the two groups of connecting plates 203b are respectively rotationally connected with a connecting rod 1 202a and a connecting rod 202b through a rotating shaft 202c, and inclined guide grooves 203c are opened at symmetrical positions on the surfaces of the two groups of connecting plates 203b, and the guide grooves 203c are respectively provided with a sliding rod 204a, and the combination of the sliding rod 204a and the guide groove 203c can realize effective positioning and guiding functions. When the sliding rod 204a moves along the guide groove 203c, they will guide the connecting plate 203b to rotate with the fixed pin 201 as the center through the L-shaped plate 203a, thereby operating the position of the connecting rod 1 202a and the connecting rod 202b.

[0033] Furthermore, the sliding rod 204a is driven by the pushing rod 204b, and the outside of the pushing rod 204b is provided with a fixed seat 1 204c and a fixed seat 204d, and the fixed seat 1 204c and the fixed seat 204d are fixedly installed in the cabinet, and their function is to support the position of the pushing rod 204b, and an earring 204e is provided on the outside of the pushing rod 204b near one end, and the padlock hung in the cabinet can hook the earring 204e to provide a locking effect for the device.

[0034] When in use, the switch is set to be pushed from the inspection position into the cabinet to the test position, and the padlock hanging at the earring 204e position is first removed. During the process of pushing the switch into the cabinet, the end of the push rod 204b is driven to move toward the upper baffle 101 and the lower baffle 102, and the sliding rod 204a slides in the guide groove 203c, pushing the connecting plate 203b to rotate around the fixed pin 201, driving the second connecting rod 202b to move downward, driving the lower baffle 102 to move downward along the vertical rod 103c through the connecting seat 103a, and realizing that the lower baffle 102 slides downward for a certain distance. Similarly, the upper baffle 101 operates in the same way, and the baffle is also driven to rotate in the opposite direction when the switch is pushed in, realizing that the upper baffle 101 moves upward for a certain distance.

[0035] Example 2

[0036] Reference Figure 1 to Figure 2 , which is the second embodiment of the utility model. Different from the previous embodiment, this embodiment provides a reset assembly 205 of the rolling shutter baffle mechanism, which solves the problem that the rolling shutter baffle mechanism cannot be automatically reset. The reset assembly 205 includes a limit ring 205a arranged outside the push rod 204b and a spring 205b arranged on the limit ring 205a;

[0037] The limiting ring 205a is disposed between the fixing seat 1 204c and the fixing seat 2 204d, and the other end of the spring 1 205b is matched with one side of the fixing seat 204d.

[0038] Furthermore, a limiting ring 205a is arranged on the outside of the push rod 204b, and the limiting ring 205a is located between the fixing seat 1 204c and the fixing seat 204d, and a spring 1 205b is arranged between the other side of the limiting ring 205a and one side of the fixing seat 204d. When the trolley is pushed into the cabinet, it drives the end of the push rod 204b to move toward the upper baffle 101 and the lower baffle 102, compressing the spring 1 205b. The compression of the spring 1 205b stores elastic potential energy, so as to release energy in the subsequent stage and provide driving force.

[0039] When in use, when the switch needs to be pulled from the test position to the maintenance position and pulled out of the cabinet, the switch is pulled to move outside the cabinet, and the limit ring 205a is pushed under the action of the spring 1 205b to drive the push rod 204b to retreat forward, realizing the reverse process, until one side of the limit ring 205a abuts against the other side of the fixing seat 1 204c, and the stroke ends. The upper baffle 101 and the lower baffle 102 are reset, and the connecting plate 203b is reset at the same time, and the padlock is hung to manually lock the device.

[0040] Example 3

[0041] Reference Figures 4 to 5 , which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a storage device for the MPO jumper, which solves the problem that the padlock may cause malfunction when operated by a human operator. It includes the rolling shutter baffle mechanism in the above embodiment, including a locking unit 300, including a moving component 301 arranged on the pushing component 204, a limiting component 302 arranged on the moving component 301, a positioning component 303 arranged on the moving component 301, and an extrusion component 304 arranged on the moving component 301.

[0042] Specifically, a cylindrical pushing hole 301a is provided on the surface of one end of the pushing rod 204b, a locking rod 301b is arranged in the pushing hole 301a, three groups of trapezoidal blocks 302a are arranged on the outside of the locking rod 301b near the other end, and three groups of through grooves 301c are provided on the outside of the pushing rod 204b, the three groups of through grooves 301c are communicated with the pushing hole 301a, and the three groups of through grooves 301c are adapted to the three groups of trapezoidal blocks 302a, positioning grooves 303a are provided on both sides of the inner walls of the three groups of through grooves 301c, positioning blocks 303b are arranged in the positioning grooves 303a, and displacement blocks 302b are arranged between the positioning blocks 303b located on both sides of the inner wall of a through groove 301c, the function of the positioning blocks 303b is to ensure the correct position of the displacement block 302b in the through groove 301c, they provide a fixed position so that the displacement block 302b can move accurately and stop at the correct position when needed.

[0043] Furthermore, limiting grooves 302c are provided on the inner wall of the fixing seat 204c at positions corresponding to the three groups of through grooves 301c, and the limiting grooves 302c are adapted to the displacement block 302b. A slider 303d in the shape of a convex letter is provided at the bottom of the displacement block 302b, and a slide groove 303c matching the slider 303d is provided on the upper inclined surface of the trapezoidal block 302a. The slide groove 303c is used to guide the slider 303d to move in a specific direction and limit its range of motion. Through the design of the slide groove 303c, the slider 303d can slide along a specific path, thereby achieving the control of the movement direction and position of the displacement block 302b. A spring 2 304b is provided at one end, and the other end of the spring 2 304b is connected to the bottom of the inner wall of the pushing hole 301a. At this time, the spring 2 304b plays the role of storing elastic potential energy. In order to release the energy in the subsequent stage and provide the effect of driving force, it should be noted that an inclined surface 304c is provided on the outer surface of the displacement block 302b close to one side, and the inclined surface 304c is in the shape of an inclined surface. An extrusion surface 304d is provided on the inner wall edge of the fixed seat 1 204c. The extrusion surface 304d is also in the shape of an inclined surface and cooperates with the inclined surface 304c. The function of the inclined surface 304c is to guide the displacement block 302b to be correctly positioned on the extrusion surface 304d at the inner edge of the fixed seat when it moves. By cooperating with the inclined surface 304c and the extrusion surface 304d, the displacement block 302b can be properly contacted with the extrusion surface 304d in the fixed seat 204c during the resetting process, thereby squeezing the displacement block 302b and cooperating with the slider 303d to slide in the slide groove 303c, thereby ensuring the stability and accuracy of the displacement block 302b during the movement.

[0044] When in use, when the trolley is pushed into the cabinet, the locking rod 301b needs to be pushed first. Only when the surface of one end of the locking rod 301b is flush with the surface of one end of the pushing rod 204b, the pushing rod 204b can slide in the fixing seat 1 204c. Otherwise, the trapezoidal block 302a in the locking rod 301b will lift the displacement block 302b and limit it in the limiting groove 302c, so that the pushing rod 204b cannot move toward the upper baffle 101. In the process of pushing the locking rod 301b, the other end of the locking rod 301b squeezes the spring 2 304b, and the three groups of trapezoidal blocks 302a outside the locking rod 301b simultaneously drive the three groups of displacement blocks 302b to retract inward at the same time. When the surface of one end of the locking rod 301b is flush with the surface of one end of the pushing rod 204b, , the displacement block 302b will completely disengage from the limiting groove 302c and be limited in the through groove 301c. At this time, the trolley can push the push rod 204b to complete the work. When the switch needs to be pulled from the test position to the maintenance position and pulled out of the cabinet, the switch is pulled to move outside the cabinet, and the limiting ring 205a is pushed under the action of the spring 1 205b to drive the push rod 204b to retreat forward, realizing the reverse process, until one side of the limiting ring 205a is against the other side of the fixing seat 1 204c, the extrusion surface 304d of the fixing seat 1 204c will squeeze the inclined surface 304c of the displacement block 302b, exerting downward pressure on the displacement block 302b, and under the push of the elastic potential energy stored in the spring 2 304b, the resetting of the locking rod 301b is accelerated, thereby accelerating the completion of the self-locking work.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0047] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A rolling shutter baffle mechanism, characterized in that: include, The mounting unit (100) comprises an upper baffle (101) and a lower baffle (102), and a sliding assembly (103) arranged on both sides of the upper baffle (101) and the lower baffle (102); The transmission unit (200) comprises a fixed pin shaft (201), a connecting assembly (202) arranged on both sides of the upper baffle plate (101) and the lower baffle plate (102), a rotating assembly (203) arranged on the fixed pin shaft (201), a pushing assembly (204) arranged on the rotating assembly (203), and a resetting assembly (205) arranged on the pushing assembly (204); The locking unit (300) comprises a moving component (301) arranged on the pushing component (204), a limiting component (302) arranged on the moving component (301), a positioning component (303) arranged on the moving component (301), and a pressing component (304) arranged on the moving component (301).

2. The rolling shutter baffle mechanism according to claim 1, characterized in that: The sliding assembly (103) comprises a connecting seat (103a) arranged on the upper baffle (101) and the lower baffle (102), a positioning piece (103b) arranged on the connecting seat (103a), and a vertical rod (103c) arranged on the positioning piece (103b).

3. The rolling shutter baffle mechanism according to claim 2, characterized in that: The connection assembly (202) comprises a connecting rod 1 (202a) arranged on one side of the upper connection seat (103a), a connecting rod 2 (202b) arranged on one side of the lower connection seat (103a), and a rotating shaft (202c) arranged at both ends of the connecting rod 1 (202a) and the connecting rod 2 (202b).

4. The rolling shutter baffle mechanism according to claim 3, characterized in that: The rotating assembly (203) comprises an L-shaped plate (203a) arranged on the fixed pin shaft (201), a connecting plate (203b) arranged on the L-shaped plate (203a), and a guide groove (203c) arranged on the outer side of the connecting plate (203b); The connecting plate (203b) is rotatably connected via a rotating shaft (202c) and connecting rod one (202a) or connecting rod two (202b).

5. The rolling shutter baffle mechanism according to claim 4, characterized in that: The pushing assembly (204) comprises a sliding rod (204a) arranged in the guide groove (203c), a pushing rod (204b) arranged on the sliding rod (204a), a fixing seat 1 (204c) and a fixing seat 2 (204d) arranged outside the pushing rod (204b), and an earring (204e) arranged on the pushing rod (204b); The pushing rod (204b) is slidably connected in the fixing seat 1 (204c) and the fixing seat 2 (204d).

6. The rolling shutter mechanism according to claim 5, characterized in that: The reset assembly (205) comprises a limiting ring (205a) arranged outside the push rod (204b) and a spring 1 (205b) arranged on the limiting ring (205a); The limiting ring (205a) is arranged between the first fixing seat (204c) and the second fixing seat (204d), and the other end of the first spring (205b) matches with one side of the second fixing seat (204d).

7. The rolling shutter baffle mechanism according to claim 6, characterized in that: The moving assembly (301) comprises a pushing hole (301a) arranged at one end of the pushing rod (204b), a locking rod (301b) arranged in the pushing hole (301a), and a through groove (301c) arranged outside the pushing rod (204b).

8. The rolling shutter mechanism according to claim 7, characterized in that: The limiting assembly (302) comprises a trapezoidal block (302a) arranged outside the locking rod (301b), a displacement block (302b) arranged in the through slot (301c), and a limiting slot (302c) having an inner wall arranged in the fixing seat (204c); The displacement block (302b) and the limiting groove (302c) cooperate with each other.

9. The rolling shutter mechanism according to claim 8, characterized in that: The positioning assembly (303) comprises a positioning groove (303a) arranged on the inner wall of the through groove (301c), positioning blocks (303b) arranged on both sides of the displacement block (302b), a sliding groove (303c) arranged on the trapezoidal block (302a), and a sliding block (303d) arranged on the displacement block (302b); The slide groove (303c) and the slider (303d) cooperate with each other.

10. The rolling shutter mechanism according to claim 9, characterized in that: The extrusion assembly (304) comprises a limiting rod (304a) arranged at the other end of the locking rod (301b), a second spring (304b) arranged on the limiting rod (304a), an inclined surface (304c) arranged on the displacement block (302b), and an extrusion surface (304d) arranged on the other side of the fixing seat (204c).

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