Packaging bag slitting device

By designing a semi-automatic packaging bag cutting device, which combines a support base, a fixed frame, and a swing frame, the problems of high operational difficulty and wrinkle deformation in existing technologies are solved, achieving efficient and low-cost packaging bag cutting.

CN223920725UActive Publication Date: 2026-02-17JILIN RUILONG TIANFU AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520725009.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-02-17
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Existing packaging bag cutting devices are difficult to operate, costly, and prone to causing wrinkles and deformation of roll film packaging bags during cutting.

Method used

A semi-automatic packaging bag cutting device was designed, including a support base, a fixed frame, a mounting frame, and a swing frame. The swing frame is driven to rotate by a handle, so that the rolled packaging bag is formed into a "U" shape. The packaging bag is fixed by limiting components and adjusting parts to avoid wrinkles and deformation, thus realizing batch cutting.

Benefits of technology

It improves the efficiency and quality of packaging bag cutting, reduces operational difficulty and labor costs, is suitable for cutting packaging bags with different needs, avoids wrinkles and deformation, and has good application prospects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a packaging bag slitting device, and belongs to the technical field of packaging bag slitting, the packaging bag slitting device comprises a supporting bottom frame, a fixing frame, a mounting frame and a swing frame body, the lower end face of the supporting bottom frame is fixedly provided with a suction cup; the fixing frame used for containing the roll-shaped packaging bag is installed on one side of the upper end of the supporting bottom frame. The mounting frame is fixedly mounted on the other side of the upper end of the supporting bottom frame; the middle position of the swinging frame body is rotationally mounted on the mounting frame; wherein a handle connected with the middle part of the swinging frame body is rotationally mounted on the mounting frame, and the handle is rotated to drive the swinging frame body to rotate and pull the packaging bag to be wound on the surface of the swinging frame body, so that the rolled packaging bag forms a square shape; besides, the semi-automatic packaging bag slitting device is designed by comprehensively analyzing the defects of an existing manual packaging bag slitting technology, the operation difficulty and the labor cost are reduced while the packaging bag slitting efficiency and quality are improved, use is convenient, and the semi-automatic packaging bag slitting device has good application prospects.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field that packaging bag divides and cuts, and specifically is a packaging bag cutting device. BACKGROUND

[0002] The roll film packaging bag does not have a clear official definition in the packaging industry, and is usually referred to as a rolled plastic packaging film. This packaging film has the same material as the plastic packaging bag, and the common ones are PVC shrink film, polypropylene (OPP) film, polyethylene (PE) film, PET film and composite roll film, etc.

[0003] The roll film packaging bag is widely used in various industries, including: food industry: used for packaging snacks, frozen foods, condiments, etc.; industrial products: such as hardware fittings, electronic fittings, plastic fittings, etc.; daily necessities: such as furniture fittings, rubber and plastic fittings, etc.

[0004] The roll film packaging bag has the following advantages in packaging: saving materials: using roll film can reduce the waste of packaging materials; saving labor: automation reduces the demand for manual labor; saving time: automatic packaging machine improves production efficiency.

[0005] In summary, in recent years, with the progress of society, the demand for roll film packaging bags has been increasing, and the consumption of roll film packaging bags by manufacturers has also been increasing;

[0006] When in use, most roll film packaging bags need to be cut into equal-length pieces from the roll shape. In order to save costs, some small factories use manual cutting to cut roll film packaging bags. When cutting roll film packaging bags, the cut roll film packaging bags are spread out and then cut directly. Due to the elasticity and toughness of the roll film packaging bag, the spread roll film packaging bag will shrink and wrinkle, which needs to be manually arranged, affecting the cutting efficiency.

[0007] With the progress of science and technology, although there are some automatic cutting on the market, the high cost and complex operation process limit its wide application. Therefore, it is particularly important to develop a packaging bag cutting device with high cost performance;

[0008] In summary, the existing packaging bag cutting device has certain disadvantages when in use, and does not meet the use requirements of the field. Therefore, we propose a packaging bag cutting device. Utility model content

[0009] In order to overcome the deficiencies of the prior art, the packaging bag slitting device is provided, the deficiencies of the existing manual packaging bag slitting technology are comprehensively analyzed, a semi-automatic packaging bag slitting device is designed, the operation difficulty and the labor cost are reduced while the packaging bag slitting efficiency and quality are improved, the device is convenient to use, has a good application prospect, and can effectively solve the problems in the background art.

[0010] The technical scheme adopted by the application to solve the technical problems is:

[0011] The packaging bag slitting device comprises a supporting base, a fixing frame, a mounting frame and a swing frame body.

[0012] The lower end face of the supporting base is fixedly provided with a suction cup.

[0013] The fixing frame for placing the roll-shaped packaging bag is installed at one side of the upper end of the supporting base.

[0014] The mounting frame is fixedly installed at the other side of the upper end of the supporting base.

[0015] The swing frame body is rotatably installed at the middle position of the mounting frame.

[0016] The mounting frame is rotatably provided with a handle connected with the middle part of the swing frame body, the handle is rotated to drive the swing frame body to rotate, and the packaging bag is wound around the surface of the swing frame body, so that the roll-shaped packaging bag forms a mouth-shaped type.

[0017] Preferably, the fixing frame comprises a supporting frame body and a supporting cross rod.

[0018] The number of the supporting frame bodies is two groups, and the supporting frame bodies are welded on the supporting frame body.

[0019] The two ends of the supporting cross rod are rotatably connected with the supporting base.

[0020] The roll-shaped packaging bag is installed at the middle position of the supporting cross rod.

[0021] Preferably, the upper end face of the supporting frame body is provided with a connecting block, a connecting groove is formed in the connecting block, the two ends of the supporting cross rod are provided with connecting pieces, and a limiting assembly is arranged in the connecting groove.

[0022] Preferably, the connecting piece comprises a bearing installed at the end position of the supporting cross rod and two groups of limiting strips arranged on the outer ring of the bearing, and the limiting assembly limits the limiting strips.

[0023] Preferably, the limiting assembly comprises two groups of limiting blocks, the end of the limiting block is located in the groove of the connecting groove side wall, and the limiting block and the bottom surface of the groove are fixedly connected through a plurality of groups of elastic members, and the lower end of the limiting block is in close contact with the upper end of the limiting strip.

[0024] Preferably, the swing frame body is provided with movable adjusting members near both ends, and the adjusting members comprise a pipe body and a sleeve fixing member.

[0025] The outer surface of the pipe body is provided with scale lines;

[0026] The number of sleeve fixing members is two groups, and the sleeve fixing members are fixedly installed on the pipe body.

[0027] The sleeve fixing member is sleeved on the swing frame body, and the sleeve fixing member is limited by the pipe body through bolts.

[0028] Preferably, the outer surface of the pipe body is provided with a limiting clamping groove away from the handle position, and the limiting clamping groove is magnetically attracted to a clamping strip, and when the packaging bag is cut, the end of the packaging bag is pressed in the limiting clamping groove by the clamping strip.

[0029] Preferably, a limiting tooth groove is formed in the clamping strip, and a limiting tooth is arranged on the inner bottom surface of the limiting clamping groove, and the limiting tooth is inserted into the inside of the limiting tooth groove.

[0030] As described above, the utility model has at least one of the following beneficial technical effects:

[0031] Firstly, the packaging bag cutting device provided by the application comprehensively analyzes the shortcomings of the existing manual cutting packaging bag technology, and designs a semi-automatic cutting packaging bag device, which can improve the cutting efficiency and quality of the packaging bag, reduce the operation difficulty and labor cost, is easy to use, has good application prospect, can effectively solve the problems in the background technology, and has good application prospect.

[0032] Secondly, the packaging bag cutting device disclosed by the utility model uses a handle to drive a swing frame body to rotate, so that the packaging bag can be evenly wrapped on the swing frame body, and the packaging bag can be uniformly cut after being wrapped to a certain extent, so that batch cutting of the packaging bag can be realized, and the packaging bag can be effectively prevented from being wrinkled and deformed during cutting, which is easy to use and has good application prospect.

[0033] Thirdly, the packaging bag cutting device disclosed by the utility model comprises a fixing frame, and the support frame body and the support cross rod in the fixing frame are designed in a separated mode, so that the packaging bag can be fixed on the support cross rod and then installed on the support frame body, which is convenient for packaging bag installation and support cross rod installation, has simple steps, good use effect, and good application prospect.

[0034] Fourthly, the utility model discloses a kind of packaging bag slitting device, swing frame body is provided, swing frame body is provided with the adjusting member of being able to adjust position, when using, adjusting member can be moved, the distance between two groups of adjusting member is changed, so that the length of packaging bag wound on swing frame body is different, so it can be applicable to the slitting of different needs packaging bag, overall applicability is relatively high, with good application prospect.

[0035] Fifthly, the utility model discloses a kind of packaging bag slitting device, wherein adjusting member is recorded, the outer surface of pipe body on adjusting member is provided with limiting slot, and has clamping strip by magnetic attraction, when using, the end of packaging bag is placed in the inside of packaging bag, then fixed by clamping strip compression can be realized Packaging bag position is fixed, convenient operation, use effect is good, with good application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is the overall structure schematic diagram of the utility model;

[0037] Figure 2 It is the other angle structure schematic diagram of the utility model in use state;

[0038] Figure 3 It is the local structure schematic diagram of fixed frame in the utility model;

[0039] Figure 4 It is the local connection structure schematic diagram of support cross bar in the utility model;

[0040] Figure 5 It is the local structure diagram of limiting component in the utility model;

[0041] Figure 6 It is the local structure diagram of adjusting member in the utility model;

[0042] Figure 7 It is the local installation structure diagram of limiting strip and pipe body in the utility model;

[0043] Figure 8 It is the local installation structure diagram of limiting strip and pipe body other angle in the utility model.

[0044] Fig. 1, support base frame;2, fixed frame;21, support cross bar;22, connecting block;23, bearing;24, limiting strip;25, limiting block;26, elastic member;3, mounting frame;4, swing frame body;41, pipe body;42, sleeve fixing part;43, limiting slot;44, clamping strip;45, limiting tooth slot;46, limiting tooth;5, handle. DETAILED DESCRIPTION

[0045] This application provides a packaging bag cutting device to solve the problem that in the prior art, most roll film packaging bags need to be cut from rolls into equal-length sheets. In order to save costs, some small factories use manual cutting of roll film packaging bags. When cutting roll film packaging bags, the roll film packaging bags are unfolded and then cut directly with a knife. Because roll film packaging bags have a certain degree of elasticity and toughness, the unfolded roll film packaging bags will shrink and wrinkle, which requires manual sorting and affects the cutting efficiency.

[0046] Example 1:

[0047] A packaging bag cutting device, such as Figures 1-2 As shown, it includes a support base 1, a fixed frame 2, a mounting frame 3, and a swing frame 4:

[0048] A suction cup is fixedly installed on the lower end face of the support base 1. The suction cup makes the support base 1 more stable and prevents it from shaking easily during use. The fixing frame 2 for placing the roll packaging bag is installed on one side of the upper end of the support base 1. The mounting frame 3 is fixedly installed on the other side of the upper end of the support base 1. The swing frame 4 is rotatably installed on the mounting frame 3 at the middle position.

[0049] The mounting frame 3 is rotatably mounted with a handle 5 connected to the middle of the swing frame 4. Rotating the handle 5 drives the swing frame 4 to rotate, pulling the packaging bag around the surface of the swing frame 4, so that the rolled packaging bag forms a square shape.

[0050] When in use, the roll-shaped packaging bag is installed on the fixed frame 2, and the other end of the roll-shaped packaging bag is inserted into the swing frame 4. Then, the handle 5 is turned, and the handle 5 drives the swing frame 4 to rotate, so that the packaging bag is rolled up on the swing frame 4 to form a square shape. Then, the user uses a knife to cut the square-shaped packaging bag, thereby cutting the packaging bag into strips of similar size, which has a good effect.

[0051] This application provides a packaging bag cutting device. Based on a comprehensive analysis of the shortcomings of existing manual packaging bag cutting technology, a semi-automatic packaging bag cutting device is designed. While improving the efficiency and quality of packaging bag cutting, it reduces the difficulty of operation and labor costs. It is relatively easy to use and has good application prospects. It can effectively solve the problems raised in the background section and has good application prospects.

[0052] This utility model describes a packaging bag cutting device, which uses a handle 5 to drive the swing frame 4 to rotate, so that the packaging bag is evenly wrapped on the swing frame 4. After being wrapped to a certain extent, it is cut uniformly, which can realize the batch cutting of packaging bags and effectively avoid the packaging bags from wrinkling and deforming during the cutting process. It is easy to use and has good application prospects.

[0053] Embodiment 2:

[0054] On the basis of embodiment 1, as shown in the figure, the embodiment also describes the following technical features: Figures 1-5

[0055] The fixed frame 2 comprises a support frame body and a support crossbar 21: the number of support frame bodies is two groups, and the support frame bodies are welded on the support base frame 1; the two ends of the support crossbar 21 are rotatably connected with the support frame bodies; wherein the roll-shaped packaging bag is installed at the middle position of the support crossbar 21.

[0056] The two ends of the support crossbar 21 are lapped on the support frame body and can rotate relatively.

[0057] The upper end face of the support frame body is provided with a connecting block 22, a connecting groove is formed in the connecting block 22, the two ends of the support crossbar 21 are provided with connecting pieces, and a limiting assembly is arranged in the connecting groove. After the connecting piece is inserted into the connecting groove, the limiting assembly limits the connecting piece.

[0058] After the connecting piece is inserted into the connecting groove, the limiting is realized by the limiting assembly, so that the displacement of the support crossbar 21 during use can be effectively avoided, and the slitting effect of the packaging bag can be guaranteed.

[0059] The connecting piece comprises a bearing 23 installed at the end position of the support crossbar 21 and two groups of limiting strips 24 arranged on the outer ring of the bearing 23, and the limiting assembly limits the limiting strips 24.

[0060] The outer ring of the bearing 23 is provided with an annular groove, and the bottom of the connecting groove is provided with a protrusion. After the connecting piece is inserted into the connecting groove, the protrusion is inserted into the inside of the annular groove, so as to limit the position of the bearing 23, and further limit the position of the support crossbar 21, so as to avoid the shaking of the support crossbar 21, and the use effect is good.

[0061] The bearing 23 preferably has a certain friction force, which can overcome the influence of inertia.

[0062] The limiting assembly comprises two groups of limiting blocks 25, the end of the limiting block 25 is located in the groove of the side wall of the connecting groove, the limiting block 25 and the bottom surface of the groove are fixedly connected through a plurality of groups of elastic pieces 26, and the lower end of the limiting block 25 is in close contact with the upper end of the limiting strip 24.

[0063] ​In use, the annular groove is aligned with the protrusion, the supporting cross rod 21 is pressed, the limiting strip 24 on the supporting cross rod 21 extrudes the limiting block 25, the upper end of the limiting block 25 is a slope, so that the limiting block 25 is stressed, the limiting block 25 extrudes the elastic piece 26, so that the elastic piece 26 is compressed, so that the limiting block 25 enters into the connecting groove, when the supporting cross rod 21 is placed in place, the limiting strip 24 is located at the lower end of the limiting block 25, the lower end of the limiting block 25 is in close contact with the upper end of the limiting strip 24, and the position of the limiting block 25 is limited, so that the up-down swing of the supporting cross rod 21 in the process of cutting the packaging bag (the packaging bag is cut into a mouth-shaped type, and then a cutter is used for cutting) can be effectively avoided.

[0064] The utility model discloses a kind of packaging bag cutting device, wherein fixed frame 2 is recorded, supporting frame body and supporting cross rod 21 in fixed frame 2 adopt the design of separation, in use, after packaging bag is fixed on supporting cross rod 21, it is installed on supporting frame body, packaging bag installation is more convenient, and supporting cross rod 21 is installed on supporting frame body more conveniently, step is simple, use effect is good, with good application prospect.

[0065] Example 3:

[0066] Based on example 2, as Figures 1-8 Indicated, the embodiment also records the following technical features:

[0067] Adjusting piece is movably arranged on swing frame body 4 near both ends, and adjusting piece includes tube body 41 and sleeve fixing part 42: the outer surface of tube body 41 is provided with scale line, which can facilitate relevant staff to correct the position of packaging bag when fixing the end of packaging bag.

[0068] The number of sleeve fixing part 42 is two groups, and sleeve fixing part 42 is fixedly installed on tube body 41.

[0069] Among them, sleeve fixing part 42 is sleeved on swing frame body 4, and sleeve fixing part 42 is limited by bolt and tube body 41.

[0070] In use, pull tube body 41, so that sleeve fixing part 42 moves along swing frame body 4, adjust the fit position (the optimal adjustment scheme is to adjust two groups of sleeve fixing part 42 at the same time, so that two groups of sleeve fixing part 42 are symmetrically arranged with the center of swing frame body 4), rotate bolt, and the position of sleeve fixing part 42 is fixed by bolt.

[0071] The utility model discloses a kind of packaging bag slitting device, it is provided with swing frame body 4, swing frame body 4 is provided with the adjusting piece of being able to adjust position, when using, adjusting piece can be moved, the distance between two groups of adjusting pieces is changed, so that the length of packaging bag wound on swing frame body 4 is different, so it can be applicable to different needs packaging bag slitting, overall applicability is relatively high, with good application prospect.

[0072] Example 4:

[0073] Based on example 3, as Figures 1-8 Indicated, the embodiment also records the following technical features:

[0074] The outer surface of the pipe body 41 is provided with a limiting clamping groove 43 away from the handle 5 position, and the limiting clamping groove 43 is magnetically attracted to the clamping strip 44. When the packaging bag is cut, the end of the packaging bag is pressed in the limiting clamping groove 43 by the clamping strip 44.

[0075] When using, the end of the packaging bag is pressed on the clamping strip 44, and then the clamping strip 44 is pressed in the limiting clamping groove 43, so as to realize the fixation of the end position of the packaging bag, realize the limitation of the end of the packaging bag, so that the packaging bag unwinding and winding will not be loose.

[0076] The clamping strip 44 is provided with a limiting tooth groove 45, and the inner bottom surface of the limiting clamping groove 43 is provided with a limiting tooth 46, which is inserted into the inside of the limiting tooth groove 45.

[0077] The clamping strip 44 is provided with a pull ring, which can separate the clamping strip 44 from the limiting tooth groove 45.

[0078] The limiting clamping groove 43 and the limiting tooth 46 cooperate with each other, and the contact area is relatively extensive, which can realize the stable fixation of the end of the packaging bag, and will not be loose, and the use effect is good.

[0079] The utility model discloses a kind of packaging bag slitting device, wherein adjusting piece is recorded, the outer surface of pipe body 41 on adjusting piece is provided with limiting clamping groove 43, and magnetically attracted to clamping strip 44, when using, the end of the packaging bag is placed in the inside of the packaging bag, then through clamping strip 44 tightness can realize the fixation of the position of the packaging bag, convenient operation, use effect is good, with good application prospect

[0080] The working principle is that when in use, the roll-shaped packaging bag is installed on the supporting cross rod 21, the annular groove is aligned with the protrusion, the supporting cross rod 21 is pressed, the limiting strip 24 on the supporting cross rod 21 extrudes the limiting block 25, the upper end of the limiting block 25 is a slope, so that the limiting block 25 is stressed, the limiting block 25 extrudes the elastic piece 26, so that the elastic piece 26 is compressed, so that the limiting block 25 enters into the connecting groove, when the supporting cross rod 21 is placed in place, the limiting strip 24 is located at the lower end of the limiting block 25, the lower end of the limiting block 25 is in close contact with the upper end of the limiting strip 24, and the position of the limiting block 25 is limited, so that the up-down swing of the supporting cross rod 21 in the process of cutting the packaging bag (the packaging bag is cut into a mouth-shaped type, and then a cutter is used for cutting) can be effectively avoided.

[0081] The pipe body 41 is pulled, the sleeve fixing piece 42 is moved along the swing frame body 4, after the fitting position is adjusted (the optimal adjustment scheme is that two groups of sleeve fixing pieces 42 are adjusted at the same time, so that the two groups of sleeve fixing pieces 42 are symmetrically arranged with the center of the swing frame body 4), the bolt is rotated, and the position of the sleeve fixing piece 42 is fixed through the bolt.

[0082] The end of the packaging bag is pressed on the clamping strip 44, and then the clamping strip 44 is pressed in the limiting clamping groove 43, so that the position of the end of the packaging bag is fixed.

[0083] The handle 5 is rotated, the handle 5 drives the swing frame body 4 to rotate, so that the packaging bag is wound on the swing frame body 4 to form a mouth-shaped type, then a user uses a cutter to cut the packaging bag of the mouth-shaped type, so that the packaging bag is cut into a strip-shaped packaging bag with a size close to each other, and the use effect is good.

[0084] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model and are not a limitation on the implementation mode. For ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A packaging bag slitting apparatus characterized by comprising: The utility model relates to a kind of bag cutting device, including: Support chassis (1), the lower end surface is fixedly installed with suction cup; For placing the fixed frame (2) of roll-shaped packaging bag, it is installed in the upper end one side position of support chassis (1); Mounting bracket (3) is fixedly installed in the upper end other side position of support chassis (1); Swing frame body (4) is rotatably installed in the middle position of mounting bracket (3); Wherein, handle (5) is rotatably installed with swing frame body (4) middle part connection on mounting bracket (3), rotates handle (5), drives swing frame body (4) to rotate, and package bag is wound around the surface of swing frame body (4), so that roll-shaped packaging bag forms mouth character type.

2. A packaging bag slitting apparatus as claimed in claim 1, characterized in that: The fixed frame (2) includes: Support frame body, the quantity is two groups, which is welded on support chassis (1); Support cross bar (21) is rotatably connected with support frame body at both ends; Wherein, the roll-shaped packaging bag is installed in the middle position of support cross bar (21).

3. A packaging bag slitting apparatus as claimed in claim 2, wherein: The upper end surface of the support frame body is provided with a connecting block (22), a connecting groove is formed in the connecting block (22), both ends of the support cross bar (21) are provided with a connecting piece, and a limiting assembly is arranged in the connecting groove. After the connecting piece is inserted into the connecting groove, the limiting assembly limits the connecting piece.

4. A packaging bag slitting apparatus as claimed in claim 3, wherein: The connecting piece includes a bearing (23) mounted at the end position of the support cross bar (21) and two groups of limiting strips (24) arranged on the outer ring of the bearing (23), and the limiting assembly limits the limiting strips (24).

5. A packaging bag slitting apparatus as claimed in claim 4, wherein: The limiting assembly includes two groups of limiting blocks (25), the end of the limiting block (25) is located in the groove of the side wall of the connecting groove, the limiting block (25) and the bottom surface of the groove are fixedly connected by a plurality of groups of elastic pieces (26), and the lower end of the limiting block (25) is in close contact with the upper end of the limiting strip (24).

6. A packaging bag slitting apparatus as claimed in claim 1, wherein: The movable adjusting piece is arranged on the swing frame body (4) close to both ends, and the adjusting piece includes: A tube body (41) is provided with scale lines on the outer surface thereof; Two groups of sleeve fixing pieces (42) are fixedly installed on the tube body (41); Wherein, the sleeve fixing piece (42) is sleeved on the swing frame body (4), and the sleeve fixing piece (42) is limited by the bolt and the tube body (41).

7. A packaging bag slitting apparatus as claimed in claim 6, characterized in that: The outer surface of the tube body (41) is provided with a limiting clamping groove (43) away from the handle (5), and the limiting clamping groove (43) is magnetically attracted to a clamping strip (44). When the packaging bag is cut, the end of the packaging bag is pressed in the limiting clamping groove (43) by the clamping strip (44).

8. A packaging bag slitting apparatus as claimed in claim 7, characterized in that: A limiting tooth groove (45) is formed in the clamping strip (44), and a limiting tooth (46) is arranged on the inner bottom surface of the limiting clamping groove (43), and the limiting tooth (46) is inserted into the inside of the limiting tooth groove (45).