Viscose brocade tatting grey cloth cutting machine

Abstract

The utility model provides a sticky brocade tatting grey cloth cutting machine, belongs to the field of tatting grey cloth cutting, and aims to solve the problem that an existing tatting grey cloth cutting machine cannot conduct convenient and stable tiling and tensioning treatment on tatting grey clothes.The sticky brocade tatting grey cloth cutting machine comprises a protective shell, and a leveling cutting assembly is installed in the protective shell; a first supporting plate and a second supporting plate are fixedly welded to the inner side end face of the protective shell, a first threaded rod is rotationally connected into the first supporting plate, and a mounting frame is in threaded connection with the first threaded rod. According to the device, the nylon-bonded woven grey cloth can be automatically and stably flattened and clamped through the flattening plates on the upper side and the lower side, then through continuous movement of the fixing plates on the two sides, the nylon-bonded woven grey cloth can be rapidly and stably cut through the corresponding cutting knives, and in the cutting process, under the flattening and clamping effects of the flattening plates on the two sides, the nylon-bonded woven grey cloth can be rapidly and stably cut. The tension degree of the gray fabric in the cutting process can be kept all the time, and then the follow-up cutting accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of woven grey cloth cutting, in particular to a viscose brocade woven grey cloth cutting machine. Background Art

[0002] Viscose brocade refers to fibers made of viscose fiber as the main raw material. Viscose fiber is a man-made fiber obtained by chemical treatment of natural cellulose. Viscose brocade woven fabric is a fabric made of viscose fiber in the form of shuttle throwing. It has the characteristics of softness, smoothness, moisture absorption and breathability. It is suitable for the production of a variety of high-quality textiles. The premise of processing viscose brocade woven fabric into clothes is to use a cutting machine to cut it;

[0003] However, the existing woven grey cloth cutting machines have some problems in the actual working process. For example, a polyester woven grey cloth shearing device with publication number CN216129885U can easily replace the blade during the working process, but it cannot easily and stably lay the woven grey cloth flat and tension it when shearing it. Therefore, it cannot smoothly shear the loose and uneven cloth during the cutting process, resulting in a large error in the sheared cloth; and the existing woven grey cloth cutting machines cannot always maintain the tension at the cutting point of the grey cloth and the sharpness of the cutting knives during the actual working process. Therefore, in the subsequent cutting process, when the cutting knives are blunt, the woven cloth will be torn and deformed, resulting in damage to the entire viscose brocade woven grey cloth. Therefore, we have made improvements on this and proposed a viscose brocade woven grey cloth cutting machine. Utility Model Content

[0004] The utility model aims to solve the problems that the existing woven grey cloth cutting machine cannot perform convenient and stable flat-laying tensioning processing on the woven grey cloth, and cannot always maintain the tension at the cutting position of the grey cloth and the sharpness of the cutting knife.

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

[0006] Viscose brocade woven grey fabric cutting machine is used to improve the above problems.

[0007] The specific application is as follows:

[0008] The invention comprises a protective shell, in which a flat cutting assembly is installed, a first support plate and a second support plate are welded and fixed on the inner side end surface of the protective shell, a first threaded rod is rotatably connected in the first support plate, a mounting bracket is threadedly connected on the first threaded rod, the bottom limit sliding connection of the mounting bracket is in the first support plate, a second threaded rod is threadedly connected on the top of the mounting bracket, a first flexible splint is rotatably connected to the bottom end of the second threaded rod, a third threaded rod is threadedly connected to the top of the protective shell, a connecting plate is rotatably connected to the bottom end surface of the connecting plate with a traction rod, a second flexible splint is hinged on the bottom end of the traction rod, a third spring is welded and fixed to the side end surface of the traction rod, and the other end of the third spring is welded and fixed to the bottom end surface of the connecting plate.

[0009] As a preferred technical solution of the present application, the flattening and cutting components are symmetrically distributed on the upper and lower sides of the protective shell, and the flattening and cutting components include a hydraulic rod, which is installed and fixed on the protective shell, and the end of the hydraulic rod is fixedly connected to a fixed plate, and a first spring is welded and fixed on the fixed plate, and a limiting rod is welded and fixed to the other end of the first spring, and the limiting rod is slidably connected to the fixed plate, and a flattening plate is welded and fixed to the end of the limiting rod, a through groove is penetrated through the flattening plate, and a cutting knife is welded and fixed on the fixed plate.

[0010] As a preferred technical solution of the present application, the end of the hydraulic rod is fixed at the middle part of the fixed plate, the limit rods are equidistantly distributed on both sides of the fixed plate, the length of the cutting knife is smaller than the length of the limit rod, and the side end surface of the upper cutting knife and the side end surface of the lower cutting knife are located on the same vertical plane.

[0011] As a preferred technical solution of the present application, a first whetstone is fixedly connected to the inner side end surface of the protective shell, a second spring is welded and fixed to the inner side end of the protective shell, a sliding block is welded and fixed to the other end of the second spring, the sliding block is limited and slidably connected to the inner side end surface of the protective shell, the end of the sliding block is fixedly connected to the second whetstone, the first whetstone is fitted with the second whetstone, the end side end surface of the second whetstone is inclined, the inclined surface of the end side end of the second whetstone is parallel to the bottom inclined surface of the cutting knife, and the length of the first whetstone and the length of the second whetstone are both greater than the width of the cutting knife.

[0012] As a preferred technical solution of the present application, the first threaded rod is connected to the middle part of the bottom of the mounting frame, the cross-section of the mounting frame is "L"-shaped, the second threaded rod is connected to the middle part of the top of the first flexible splint, and the side end surface of the first flexible splint is in contact with the side end surface of the mounting frame.

[0013] As a preferred technical solution of the present application, the third threaded rod is connected to the top middle part of the connecting plate, the traction rod is equidistantly distributed on the connecting plate, and the side end faces of the second flexible splint and the connecting plate are both in contact with the inner side end faces of the protective shell.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the scheme of this application:

[0016] 1. By setting the flat cutting components on the upper and lower sides, the corresponding fixed plates can be driven to move toward the middle at the same time by the upper and lower hydraulic rods. At this time, the flat plates on the upper and lower sides can automatically and stably flatten and clamp the viscose brocade woven fabric. Then, by continuing to move the fixed plates on both sides, the viscose brocade woven fabric can be quickly and stably cut by the corresponding cutting knives. During the cutting process, under the flattening and clamping action of the flattening plates on both sides, the tension of the fabric can be always maintained during the cutting process, thereby improving the accuracy of subsequent cutting, thereby ensuring the flatness of the cutting edge;

[0017] 2. The first grindstone and the second grindstone can be in close contact and friction with the cutting knife during the working process, so that the cutting knife can be automatically sharpened during the working process, so as to ensure the stability of the cutting knife during the long-term working process, improve the cutting quality and production efficiency, and reduce the need for manual intervention;

[0018] 3. The first threaded rod can be used to drive one end of the viscose brocade woven fabric to move conveniently, and the cutting length can be conveniently and accurately adjusted by cooperating with the scale on the inner side end surface of the protective shell, and the second threaded rod can be used to drive the first flexible splint to conveniently clamp one end of the viscose brocade woven fabric, and then the thread of the third threaded rod is rotated, and the second flexible splint on the traction rod can be used to conveniently and stably lay and tension the viscose brocade woven fabric, thereby ensuring the accuracy and stability of the subsequent cutting of the viscose brocade woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure of the viscose brocade woven grey fabric cutting machine provided in this application;

[0020] Figure 2 A schematic diagram of the main cross-sectional structure of the protective housing of the viscose brocade woven grey fabric cutting machine provided in this application;

[0021] Figure 3 The viscose brocade woven grey cloth cutting machine provided for this application Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4A schematic diagram of the top view of the second grindstone of the viscose brocade woven grey fabric cutting machine provided in the present application;

[0023] Figure 5 A schematic diagram of the main cross-sectional structure of the first support plate of the viscose brocade woven grey fabric cutting machine provided in this application;

[0024] Figure 6 A schematic diagram of the side section structure of the protective housing of the viscose brocade woven grey fabric cutting machine provided in this application;

[0025] Figure 7 A schematic diagram of the side cross-sectional structure of the first support plate of the viscose brocade woven grey fabric cutting machine provided in the present application;

[0026] Figure 8 The schematic diagram of the side view structure of the second flexible clamping plate of the viscose brocade woven grey fabric cutting machine provided by the present application. The following are marked in the figure: 1. protective shell; 2. flat cutting assembly; 201. hydraulic rod; 202. fixed plate; 203. first spring; 204. limit rod; 205. flat plate; 206. through groove; 207. cutting knife; 208. first grindstone; 209. second spring; 210. sliding block; 211. second grindstone; 3. first support plate; 4. first threaded rod; 5. mounting frame; 6. second threaded rod; 7. first flexible clamping plate; 8. third threaded rod; 9. connecting plate; 10. traction rod; 11. second flexible clamping plate; 12. third spring; 13. second support plate. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] Embodiment 1:

[0033] like Figure 1-Figure 8 As shown, the present embodiment proposes a cutting machine for viscose woven grey cloth, comprising a protective shell 1, in which a flat cutting assembly 2 is installed, a first support plate 3 and a second support plate 13 are welded and fixed on the inner side end surface of the protective shell 1, a first threaded rod 4 is rotatably connected in the first support plate 3, a mounting frame 5 is threadedly connected on the first threaded rod 4, the bottom limit sliding connection of the mounting frame 5 in the first support plate 3, a second threaded rod 6 is threadedly connected at the top of the mounting frame 5, a first flexible splint 7 is rotatably connected at the bottom end of the second threaded rod 6, a third threaded rod 8 is threadedly connected at the top of the protective shell 1, a connecting plate 9 is rotatably connected at the bottom end of the third threaded rod 8, a traction rod 10 is hinged on the bottom end of the traction rod 10, a second flexible splint 11 is hinged on the bottom end of the traction rod 10, a third spring 12 is welded and fixed on the side end surface of the traction rod 10, and the other end of the third spring 12 is welded and fixed on the bottom end surface of the connecting plate 9.

[0034] Embodiment 2:

[0035] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0036] like Figure 2 and Figure 6As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the flat cutting assembly 2 is centrally symmetrically distributed on the upper and lower sides of the protective shell 1, and the flat cutting assembly 2 includes a hydraulic rod 201, the hydraulic rod 201 is installed and fixed on the protective shell 1, the end of the hydraulic rod 201 is fixedly connected with a fixed plate 202, a first spring 203 is welded and fixed on the fixed plate 202, the other end of the first spring 203 is welded and fixed with a limiting rod 204, the limiting rod 204 is slidably connected to the fixed plate 202, the end of the limiting rod 204 is welded and fixed with a flat plate 205, the flat plate 205 is penetrated with a through groove 206, the fixed plate 202 is welded and fixed with a cutting knife 207, the end of the hydraulic rod 201 is fixed to the middle part of the fixed plate 202, and the limiting rods 204 are equidistantly distributed on the fixed plate 202. On both sides of the fixed plate 202, the length of the cutting knife 207 is less than the length of the limiting rod 204, and the side end surface of the upper cutting knife 207 and the side end surface of the lower cutting knife 207 are located in the same vertical plane. By using the flat cutting components 2 on the upper and lower sides, the corresponding fixed plates 202 can be driven to move toward the middle at the same time through the upper and lower hydraulic rods 201. At this time, the flat plates 205 on the upper and lower sides can be used to automatically and stably clamp the viscose woven fabric flatly. Subsequently, by continuing to move the fixed plates 202 on both sides, the viscose woven fabric can be quickly and stably cut by the corresponding cutting knife 207. During the cutting process, under the flat clamping action of the flat plates 205 on both sides, the tension of the fabric during the cutting process can be always maintained, thereby improving the accuracy of subsequent cutting, thereby ensuring the flatness of the cutting edge.

[0037] like Figure 2-Figure 4 and Figure 6 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a first whetstone 208 is fixedly connected to the inner side end surface of the protective shell 1, a second spring 209 is welded and fixed to the inner side end of the protective shell 1, a sliding block 210 is welded and fixed to the other end of the second spring 209, the sliding block 210 is limitedly slidably connected to the inner side end surface of the protective shell 1, the end of the sliding block 210 is fixedly connected to the second whetstone 211, the first whetstone 208 is fitted with the second whetstone 211, and the end side end surface of the second whetstone 211 It is in an inclined shape, and the inclined surface of the side end of the second whetstone 211 is parallel to the bottom inclined surface of the cutting knife 207. The length of the first whetstone 208 and the length of the second whetstone 211 are both greater than the width of the cutting knife 207. The first whetstone 208 and the second whetstone 211 can be closely contacted and rubbed with the cutting knife 207 during operation, and the cutting knife 207 during operation can be automatically polished, so that the cutting knife 207 can always remain sharp, thereby ensuring the stability of the cutting knife 207 during long-term operation.

[0038] like Figure 2 , Figure 5 and Figure 7 As shown, as a preferred embodiment, on the basis of the above method, further, the first threaded rod 4 is connected to the middle part of the bottom of the mounting frame 5, the cross-section of the mounting frame 5 is "L" shaped, the second threaded rod 6 is connected to the middle part of the top of the first flexible splint 7, the side end surface of the first flexible splint 7 is in contact with the side end surface of the mounting frame 5, and the first threaded rod 4 can be used to drive one end of the viscose woven fabric to move conveniently, and the cutting length can be conveniently and accurately adjusted in conjunction with the scale on the side end surface inside the protective shell 1, and the second threaded rod 6 can be used to drive the first flexible splint 7 to conveniently clamp one end of the viscose woven fabric.

[0039] like Figure 2 and Figure 8 As shown, as a preferred embodiment, on the basis of the above method, further, the third threaded rod 8 is connected to the top middle part of the connecting plate 9, the traction rod 10 is equidistantly distributed on the connecting plate 9, the side end surface of the second flexible splint 11 and the side end surface of the connecting plate 9 are both in contact with the inner side end surface of the protective shell 1, and the threaded rotation of the third threaded rod 8 cooperates with the second flexible splint 11 on the traction rod 10, so that the viscose brocade woven fabric can be conveniently and stably laid and tensioned, ensuring the accuracy and stability of the subsequent cutting of the viscose brocade woven fabric.

[0040] Specifically, when the present viscose brocade woven grey fabric cutting machine is in use: first, a scale is set on the inner side end surface of the protective shell 1, and the staff can rotate the first threaded rod 4 on the first support plate 3, and under the rotation of the first threaded rod 4, the threaded mounting frame 5 can be driven to move left or right on the first support plate 3 until the mounting frame 5 moves to a suitable scale, and ensure that the scale at which the mounting frame 5 is located is equal to the scale at which the cutting knife 207 is located and the scale required for cutting the viscose brocade woven grey fabric.

[0041] Then the staff can place the viscose brocade woven fabric to be cut on the first support plate 3 and the second support plate 13, and place one end of the viscose brocade woven fabric directly below the first flexible clamping plate 7 and fit it with the side end surface of the mounting frame 5. Then the staff can rotate the second threaded rod 6 on the mounting frame 5. At this time, under the action of the thread rotation of the second threaded rod 6, the first flexible clamping plate 7 connected to the bottom rotation can be pushed to move downward stably. At this time, under the action of the movement of the first flexible clamping plate 7, the viscose brocade woven fabric can be conveniently and stably clamped and fixed on the first support plate 3. After one end of the viscose brocade woven fabric is clamped stably, the staff can rotate the third threaded rod 8 on the protective shell 1. Under the action of the third threaded rod 8, the connecting plate 9 can be driven to move downward by the bottom rotating connection. At this time, under the action of the downward movement of the connecting plate 9, the second flexible clamping plate 11 can be driven to move downward synchronously through the traction rod 10 until the bottom end surface of the second flexible clamping plate 11 contacts the viscose brocade woven grey fabric. Subsequently, under the action of the threaded rotation of the third threaded rod 8, the connecting plate 9 can be driven to continue to move downward. At this time, under the guiding action of the traction rod 10, the second flexible clamping plate 11 can be pushed to translate to the right, and then the viscose brocade woven grey fabric can be pulled to the right on the second supporting plate 13 by friction, so that the viscose brocade woven grey fabric clamped at one end can be conveniently and stably tightened and laid, ensuring the accuracy and stability of the subsequent cutting of the viscose brocade woven grey fabric.

[0042] After the viscose brocade woven fabric is tightened and laid flat, the staff can drive the two flat cutting components 2 on the upper and lower sides. At this time, under the driving action of the hydraulic rods 201 on the upper and lower sides, the corresponding fixed plates 202 can be pushed to move toward the middle at the same time. Under the movement of the fixed plates 202 on the upper and lower sides, the limit rods 204 on the first spring 203 can push the corresponding flat plates 205 to move toward the middle at the same time, until the flat plates 205 on both sides clamp the viscose brocade woven fabric flatly, and then the fixed plates 202 on the upper and lower sides are 02 continues to move toward the middle. At this time, the flattening plates 205 on the upper and lower sides will not continue to move, ensuring the stability of the clamping state of the viscose brocade woven grey fabric. At the same time, under the staggered movement of the cutting knives 207 on the upper and lower sides, the viscose brocade woven grey fabric can be cut quickly and stably through the through slot 206. During the cutting process, under the flattening clamping action of the flattening plates 205 on both sides, the tension of the grey fabric can be always maintained during the cutting process, thereby improving the accuracy of subsequent cutting, thereby ensuring the flatness of the cutting edge;

[0043] During the movement of the cutting knife 207, it can be in close contact with the first grindstone 208 and the second grindstone 211, and the cutting knife 207 can continue to move, so that the second grindstone 211 can be pushed to move to one side; after the cutting knife 207 finishes working, the fixing plate 202 can be driven to move and reset through the hydraulic rod 201, and then the cutting knife 207 can be driven to move and reset. At the same time, under the elastic action of the first spring 203, the flattening plate 205 can be driven to move and reset through the limit rod 204, and separated from the woven fabric, and under the elastic action of the second spring 209, the second grindstone 211 can be driven to move and reset through the sliding block 210. Under the joint action of the first grindstone 208 and the second grindstone 211, they can be in close contact and friction with the cutting knife 207 during the working process, so that the cutting knife 207 can be automatically polished during the working process, and the cutting knife 207 can always remain sharp, thereby ensuring the stability of the cutting knife 207 during long-term working.

[0044] After the viscose brocade woven fabric is cut, the first flexible splint 7 can be driven to move away from the viscose brocade woven fabric by rotating the second threaded rod 6 in the opposite direction. Similarly, the second flexible splint 11 on the traction rod 10 can be driven to move away from the viscose brocade woven fabric through the connecting plate 9 by rotating the third threaded rod 8 in the opposite direction, thereby ensuring the stability and convenience of the cutting work of the viscose brocade woven fabric.

[0045] The above embodiments are only used to illustrate the utility model but not to limit the technical solutions described in the utility model. Although the present invention has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the utility model; and all technical solutions and improvements that do not deviate from the spirit and scope of the utility model are included in the scope of the claims of the utility model.

Claims

1. A viscose woven fabric cutting machine, comprising a protective housing (1), characterized in that: A flat cutting assembly (2) is installed in the protective shell (1); a first support plate (3) and a second support plate (13) are welded and fixed on the inner side end surface of the protective shell (1); a first threaded rod (4) is rotatably connected in the first support plate (3); a mounting frame (5) is threadedly connected to the first threaded rod (4); the bottom of the mounting frame (5) is limitedly slidably connected in the first support plate (3); the top of the mounting frame (5) is threadedly connected to the second threaded rod (6); the bottom end of the second threaded rod (6) is rotatably connected to the first support plate (3); The protective housing (1) is rotatably connected to a first flexible clamping plate (7); the top of the protective housing (1) is threadedly connected to a third threaded rod (8); the bottom end of the third threaded rod (8) is rotatably connected to a connecting plate (9); a traction rod (10) is hingedly connected to the bottom end surface of the connecting plate (9); the bottom end of the traction rod (10) is hingedly connected to a second flexible clamping plate (11); a third spring (12) is welded and fixed to the side end surface of the traction rod (10); the other end of the third spring (12) is welded and fixed to the bottom end surface of the connecting plate (9).

2. A viscose woven fabric cutting machine according to claim 1, characterized in that: The flattening and cutting assembly (2) is centrally symmetrically distributed on the upper and lower sides of the protective shell (1), and the flattening and cutting assembly (2) comprises a hydraulic rod (201), the hydraulic rod (201) is mounted and fixed on the protective shell (1), the end of the hydraulic rod (201) is fixedly connected to a fixing plate (202), a first spring (203) is welded and fixed on the fixing plate (202), a limiting rod (204) is welded and fixed on the other end of the first spring (203), the limiting rod (204) penetrates and is slidably connected to the fixing plate (202), a flattening plate (205) is welded and fixed to the end of the limiting rod (204), a through slot (206) is penetrated and opened on the flattening plate (205), and a cutting knife (207) is welded and fixed on the fixing plate (202).

3. A viscose woven fabric cutting machine according to claim 2, characterized in that: The end of the hydraulic rod (201) is fixed to the middle part of the fixed plate (202), the limiting rods (204) are equidistantly distributed on both sides of the fixed plate (202), the length of the cutting knife (207) is smaller than the length of the limiting rods (204), and the side end surface of the upper cutting knife (207) and the side end surface of the lower cutting knife (207) are located on the same vertical plane.

4. A viscose woven fabric cutting machine according to claim 3, characterized in that: A first whetstone (208) is fixedly connected to the inner side end surface of the protective shell (1); a second spring (209) is welded and fixed to the inner side end of the protective shell (1); a sliding block (210) is welded and fixed to the other end of the second spring (209); the sliding block (210) is limitedly slidably connected to the inner side end surface of the protective shell (1); a second whetstone (211) is fixedly connected to the end of the sliding block (210); the first whetstone (208) and the second whetstone (211) are fitted together; the end side end surface of the second whetstone (211) is inclined; the inclined surface of the end side end of the second whetstone (211) is parallel to the bottom inclined surface of the cutting knife (207); the length of the first whetstone (208) and the length of the second whetstone (211) are both greater than the width of the cutting knife (207).

5. The viscose woven fabric cutting machine according to claim 1, characterized in that: The first threaded rod (4) is connected to the middle part of the bottom of the mounting frame (5), and the cross section of the mounting frame (5) is "L"-shaped. The second threaded rod (6) is connected to the middle part of the top of the first flexible clamping plate (7), and the side end surface of the first flexible clamping plate (7) is in contact with the side end surface of the mounting frame (5).

6. The viscose woven fabric cutting machine according to claim 1, characterized in that: The third threaded rod (8) is connected to the middle part of the top of the connecting plate (9), the traction rod (10) is evenly distributed on the connecting plate (9), and the side end surface of the second flexible clamping plate (11) and the side end surface of the connecting plate (9) are both in contact with the inner side end surface of the protective shell (1).

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