CN210479631U

CN210479631U - Portable plastic wrap cutting device

Info

Publication number: CN210479631U
Application number: CN201920818687.8U
Authority: CN
Inventors: 谢阳; 向小洪
Original assignee: Chongqing Medical and Pharmaceutical College
Current assignee: Chongqing Medical and Pharmaceutical College
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-08
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to the field of experimental instruments, in particular to a portable preservative film cutting device, which comprises a supporting frame with an opening at one end, wherein two opposite side walls of the supporting frame are respectively provided with a fixed channel, one end of each fixed channel is communicated with an accommodating hole, and a supporting rod is arranged between the two accommodating holes in a penetrating way; the supporting frame is provided with a cutting assembly on the side wall opposite to the opening, and the inner side of the cutting assembly is provided with a bonding layer movably connected to the supporting frame. The device solves the problem of inconvenient cutting existing in the prior art when the preservative film is cut.

Description

Portable plastic wrap cutting device

Technical Field

The utility model relates to an experimental apparatus field, concretely relates to portable plastic wrap cutting device.

Background

In a laboratory, the preservative film is a conventional consumable and is used for packaging culture dishes, sealing bottle mouths and the like, and the preservative film purchased in the laboratory is usually in a roll shape. When the preservative film is used, a part of the preservative film is required to be cut from a rolled preservative film for use, and because the film surface of the preservative film is too soft, a cutter cannot cut the preservative film forcefully, the preservative film is usually torn off manually by an experimenter or cut off by scissors for use in a laboratory.

However, the preservative film is cut by the mode, so that the end opening is irregular, and the hidden danger of hurting hands exists due to the fact that one hand is needed to hold the preservative film in the cutting process of scissors. In addition, after the preservative film is cut, the free end of the preservative film is adhered to the preservative film winding drum due to self adhesion, and the free end needs to be searched again when the preservative film is used next time, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable plastic wrap cutting device to the inconvenient problem of cutting that exists when solving among the prior art division plastic wrap.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a portable preservative film cutting device comprises a supporting frame with an opening at one end, wherein two opposite side walls of the supporting frame are respectively provided with a fixed channel, one end of each fixed channel is communicated with an accommodating hole, and a supporting rod penetrates between the two accommodating holes; the supporting frame is provided with a cutting assembly on the side wall opposite to the opening, and the inner side of the cutting assembly is provided with a bonding layer movably connected to the supporting frame.

The principle and the beneficial effects of the technical scheme are as follows: among this technical scheme, the carriage plays the effect of whole support, and the accommodation hole is used for holding the bracing piece, establishes the plastic wrap reel cover outside the bracing piece and moves to the accommodation hole along fixed passage in, prescribes a limit to the position of wearing the bracing piece that is equipped with the plastic wrap reel. The cutting assembly is used for cutting the preservative film, and during use, the free end of the preservative film is pulled out to the cutting assembly, and the preservative film is cut through the cutting assembly. In the process, the cutting assembly is arranged on the supporting frame, so that the preservative film is stably supported in the cutting process, the problem that the force application of a cutter is difficult due to the fact that the preservative film surface of the traditional cutting mode is soft is avoided, the cutting is more convenient and safer, and the hidden danger of cutting hands is avoided. In addition, because the inboard at the cutting subassembly is provided with the adhesive linkage, after the cutting finishes, the free end of plastic wrap can the adhesion on the adhesive linkage, and can not bond on the plastic wrap reel because of self viscidity, when needs the cutting next time, directly take off the free end of plastic wrap and continue to pull out after the adhesive linkage, can realize the cutting next time through the cutting subassembly, need not all to seek the free end of plastic wrap at every turn, convenient operation is swift.

Further, the cutting assembly comprises a guide groove formed in the supporting frame, a cutting knife is slidably connected in the guide groove, and the cutting knife is fixedly connected with a pushing block.

The guide way is used for leading to the removal of cutting knife, and the cutting route of guaranteeing the cutting knife is only, and then guarantees the regularity nature of plastic wrap cutting terminal surface, and the promotion piece on the cutting knife can make things convenient for operating personnel to promote the cutting knife and remove, avoids operating personnel direct hand contact cutting knife, has improved the security of using.

Furthermore, telescopic assemblies are arranged in the side walls of the supporting frames at the lower parts of the fixed channels.

The flexible subassembly of fixed passage below is used for adjusting the width of fixed passage, makes things convenient for the removal of bracing piece, and the bracing piece removes the downthehole back that holds simultaneously for the position of injecing the bracing piece avoids bracing piece and plastic wrap reel to produce great offset in the use.

Furthermore, flexible subassembly is including setting up the recess in the carriage lateral wall, and sliding connection has the sliding plate in the recess, and the rigid coupling has supporting spring between the diapire of the bottom of sliding plate and recess.

The groove is used for accommodating the sliding plate, the supporting spring is used for supporting the sliding plate, and when the supporting rod slides to the accommodating hole along the fixed channel, the sliding plate is extruded by the supporting rod to enable the supporting spring to be in a telescopic state; after the supporting rod moves into the accommodating hole, the supporting rod does not extrude the sliding plate any more, and the sliding plate moves upwards and resets under the action of the elastic supporting force of the supporting spring, so that the fixed channel is narrowed, the supporting rod is fixed in the accommodating hole, and the supporting rod is prevented from moving.

Furthermore, both ends of the supporting rod can be detachably connected with limiting pieces.

The limiting pieces at the two ends of the supporting rod are used for limiting the position of the supporting rod, so that the supporting rod is prevented from falling off from the containing hole, and stable support of the supporting rod is guaranteed.

Further, one end of the fixing channel, which is far away from the accommodating hole, is obliquely arranged.

The one end slope setting that the accommodation hole was kept away from to the fixed channel is convenient to remove the bracing piece to the fixed channel in, reduces the friction between fixed channel of initial stage and the bracing piece.

Furthermore, the side wall of the supporting frame where the cutting assembly is arranged is provided with a telescopic scale.

When needs ration cutting plastic wrap, can carry out quantitative extension with flexible scale to show the scale, operating personnel compare the cutting of the size scale on the flexible scale in the cutting process can, convenient operation, and can improve the accuracy of cutting.

Furthermore, a vertical jack penetrating through the fixed channel is arranged on the supporting frame, and an inserting rod is connected in the jack in a sliding mode.

The insertion holes and the insertion rods are used for further limiting the position of the support rods, and when the sliding plate or the support spring is damaged, the insertion rods can close the ends of the fixed channels, so that the function of limiting the position of the support rods is achieved.

Furthermore, the edges of the sliding plate are provided with round corners.

The edge of the sliding plate is provided with the round angle, so that the friction between the sliding plate and the supporting rod can be reduced compared with the situation that the edge of the sliding plate is arranged to be a right angle, and the supporting rod is prevented from being damaged while the position of the supporting rod is limited.

Further, the top surface of the pushing block is provided with an arc-shaped groove.

The arc wall of promotion piece top surface is used for placing operating personnel's finger, and the finger can increase the frictional force between finger and the promotion piece when promoting the promotion piece in the arc wall, avoids the finger to skid.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a plan view of embodiment 1 of the present invention;

fig. 3 is a side view of embodiment 1 of the present invention;

fig. 4 is a side view of embodiment 2 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the fresh-keeping film packaging machine comprises a supporting frame 1, a fixed channel 2, a containing hole 3, a supporting rod 4, an adhesive layer 5, a guide groove 6, a fresh-keeping film reel 7, a pushing block 8, a groove 9, a sliding plate 10, a supporting spring 11, a limiting sheet 12, a telescopic scale 13 and an inserted rod 14.

Example 1

Example 1 is substantially as shown in figures 1 to 3 of the accompanying drawings: the utility model provides a portable plastic wrap cutting device, includes the carriage 1 of rear end open-ended rectangle (the inboard of carriage 1 is the rear end in fig. 1), all sets up horizontal long banding fixed passage 2 on the left and right both sides wall of carriage 1, and fixed passage 2's upper and lower wall all wraps up there is the rubber layer in this embodiment (not shown in the figure). As shown in fig. 3, one end of the fixing passage 2 communicates with a circular receiving hole 3, and the diameter of the receiving hole 3 is larger than the height of the fixing passage 2. A supporting rod 4 penetrates between the two accommodating holes 3, two ends of the supporting rod 4 are in threaded connection with circular limiting pieces 12, and the diameter of each limiting piece 12 is larger than that of each accommodating hole 3; the end of the fixing passage 2 away from the receiving hole 3 is inclined so that the opening is wide-mouthed. The left side wall and the right side wall of the supporting frame 1 are provided with vertical insertion holes penetrating through the fixed channel 2, the insertion holes are vertically and slidably connected with insertion rods 14, and the length of the insertion rods 14 is larger than the depth of the insertion holes.

The supporting frame 1 is provided with a cutting assembly which is arranged on the side wall (the side wall at the lower end in figure 2) just opposite to the opening, the cutting assembly comprises a transverse guide groove 6 arranged on the supporting frame 1, a cutting knife (not shown in the figure) is connected in the guide groove 6 in a sliding manner, a pushing block 8 is bonded on the cutting knife, and the top surface of the pushing block 8 is provided with an arc-shaped groove. The upper portion horizontal sliding connection who is provided with a lateral wall of guide way on carriage 1 has adhesive linkage 5, and adhesive linkage 5 is parallel with guide way 6, and adhesive linkage 5 is located the one side that is close to bracing piece 4, and adhesive linkage 5 is with carriage 1's concrete sliding connection mode: the supporting frame 1 is provided with a sliding groove parallel to the guide groove 6, the lower part of the bonding layer 5 is bonded with a sliding block in the sliding groove in a sliding mode, the bonding layer 5 in the embodiment is strip-shaped viscous silica gel, and as shown in a combined drawing 2, the side wall of the lower end of the supporting frame 1 is bonded with a telescopic ruler 13, the telescopic ruler 13 in the embodiment is similar to a tape structure in the prior art, and the rack can be lengthened and contracted.

The specific implementation process is as follows: as shown in figure 1, before use, the inserted link 14 is pulled out from the jack, and the top end of the inserted link 14 protrudes out of the jack due to the fact that the length of the inserted link 14 is larger than the depth of the jack, and operation is convenient. After extracting inserted bar 14, fixed channel 2's port is opened, with bracing piece 4 along fixed channel 2 to the opening part roll-off this moment, take out bracing piece 4, then establish plastic wrap reel 7 cover on bracing piece 4, slide from fixed channel 2 to accommodation hole 3 respectively with the both ends of bracing piece 4, because fixed channel 2 parcel has the rubber layer, make fixed channel 2 have certain elasticity, the rubber layer receives the extrusion and is in the state of shrink this moment, after bracing piece 4 slides to accommodation hole 3 in, fix the both ends at bracing piece 4 with spacing 12 screw thread rotations, a position for fixed bracing piece 4, avoid bracing piece 4 to drop from accommodating hole 3, then insert inserted bar 14 in the jack again and fix.

And then the free end of the preservative film is pulled out from the preservative film reel 7, so that the inner side surface of the preservative film is ensured to face downwards, and the preservative film is prevented from being polluted by dust before being used. When needs cutting plastic wrap, outwards pull out the free end of plastic wrap for the free end of plastic wrap passes guide way 6, and flexible scale 13 is pulled out to the size of the plastic wrap of cutting apart as required simultaneously, makes the free end of plastic wrap keep level with flexible scale 13's pull-out distance, and at this in-process, plastic wrap reel 7 can roll along bracing piece 4, and the plastic wrap does not contact with adhesive linkage 5. Then operating personnel will place the hand in the arc wall that promotes 8 top surfaces of piece, will promote piece 8 and promote to the other end from the one end of guide way 6, and the cutting knife can slide to the other end of guide way 6 from the one end of guide way 6 this moment, accomplishes the cutting of plastic wrap. In the cutting process, push down the plastic wrap and make it bond on adhesive linkage 5, after the cutting, the tip that is located the plastic wrap of 6 inboards of guide way can keep bonding the state on adhesive linkage 5, avoids the free end of plastic wrap to bond on plastic wrap reel 7, only need when cutting the plastic wrap once more take off the free end of plastic wrap from adhesive linkage 5 continue the pulling can, need not to look for the free end once more, convenient operation.

Example 2

As shown in fig. 4, embodiment 2 differs from embodiment 1 only in that: the rubber layer is not arranged on the fixed channel 2, the telescopic assemblies are arranged in the side walls of the supporting frame 1 at the lower part of the fixed channel 2 and comprise grooves 9 formed in the side walls of the supporting frame 1, sliding plates 10 are vertically and slidably connected in the grooves 9, round corners are arranged on the edges of the sliding plates 10, and supporting springs 11 are fixedly connected between the bottoms of the sliding plates 10 and the bottom walls of the grooves 9.

When in use, in the process of sliding the support rod 4 to the accommodating hole 3 along the fixed channel 2, the sliding plate 10 is pressed by the support rod 4 to make the support spring 11 in a telescopic state; after the support rod 4 moves into the accommodating hole 3, the support rod 4 no longer presses the sliding plate 10, and at this time, the sliding plate 10 moves upward and returns under the elastic supporting force of the supporting spring 11, so that the fixing channel 2 is narrowed, and the support rod 4 is fixed in the accommodating hole 3, thereby preventing the support rod 4 from moving.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a portable plastic wrap cutting device which characterized in that: the support frame comprises a support frame with an opening at one end, wherein two opposite side walls of the support frame are respectively provided with a fixed channel, one end of each fixed channel is communicated with an accommodating hole, and a support rod penetrates between the two accommodating holes; the supporting frame is provided with a cutting assembly on the side wall opposite to the opening, and the inner side of the cutting assembly is provided with a bonding layer movably connected to the supporting frame.

2. The portable plastic wrap cutting apparatus of claim 1, wherein: the cutting assembly comprises a guide groove formed in the supporting frame, a cutting knife is connected in the guide groove in a sliding mode, and the cutting knife is fixedly connected with a pushing block.

3. The portable plastic wrap cutting apparatus of claim 2, wherein: and telescopic assemblies are arranged in the side walls of the supporting frames at the lower parts of the fixed channels.

4. A portable wrap cutting apparatus according to claim 3, wherein: the telescopic assembly comprises a groove arranged in the side wall of the supporting frame, a sliding plate is connected in the groove in a sliding mode, and a supporting spring is fixedly connected between the bottom of the sliding plate and the bottom wall of the groove.

5. The portable plastic wrap cutting apparatus of claim 4, wherein: both ends of the supporting rod can be detachably connected with limiting pieces.

6. The portable plastic wrap cutting apparatus of claim 5, wherein: one end of the fixing channel, which is far away from the accommodating hole, is obliquely arranged.

7. The portable plastic wrap cutting apparatus of claim 6, wherein: and a telescopic scale is arranged on the side wall of the supporting frame where the cutting assembly is positioned.

8. The portable plastic wrap cutting apparatus of claim 7, wherein: the supporting frame is provided with a vertical jack penetrating through the fixed channel, and an inserting rod is connected in the jack in a sliding mode.

9. The portable plastic wrap cutting apparatus of claim 8, wherein: the edges of the sliding plate are provided with round corners.

10. The portable plastic wrap cutting apparatus of claim 9, wherein: the top surface of the pushing block is provided with an arc-shaped groove.