CN201888136U

CN201888136U - Folding type grinding-free tapping knife

Info

Publication number: CN201888136U
Application number: CN2010206076336U
Authority: CN
Inventors: 楼荣斌; 楼小明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2011-07-06
Anticipated expiration: 2020-11-16

Abstract

The utility model discloses a folding type grinding-free tapping knife, which comprises a knife handle, a knife body and a knife blade, wherein the knife blade is detachably inserted on the knife body, the knife body and the knife handle are rotatablely hinged for forming a foldable structure which comprises a connecting element, the connecting element is provided with a post body with external screw threads, a post cavity which is provided with internal screw threads and is matched with the post body is formed on the upper end of the knife handle, a hinging seat hinged with the post body is formed on the back end of the knife body, and one plane which is butted against a circular bead formed by the connecting element and the knife handle is at least formed on the hinging seat. The tapping knife has the most obvious characteristics that before the tapping knife is unfolded to be used, the distance between the hinging seat and the knife handle is shortened through screw thread matching of the post body and the post cavity, so the upper plane of the hinging seat is tightly pressed and leaned on the circular bead formed by the connecting element and the knife handle, and the knife body and the knife handle are stably fixed without turning and rotating. The defect of easy flanging in the unfolded use process of the folding type tapping knife is eliminated by a simple structure.

Description

A kind of collapsible rubber tapping knife of exempting to grind

Technical field

The utility model relates to rubber rubber tapping utensil technical field, a kind of collapsible rubber tapping knife of exempting to grind of more specifically saying so.

Background technology

As everyone knows, rubber tapping knife is used for the bamboo grows scarfing and gets juice, then the juice of fetching is processed into natural rubber.Rubber tapping knife in the market is of a great variety, can be divided into integral type, combined type and collapsible substantially, and is wherein collapsible because its easily use, portable and most popular.

A kind of collapsible rubber tapping knife of collapsible rubber tapping knife structure such as Chinese patent CN200920253611.1; form by cutter hub and handle of a knife; it is characterized in that: cutter hub is connected with handle of a knife by articulated elements; and in handle of a knife, be provided with connecting rod; it is outwards flexible that the handle of a knife level is passed in the outer end of this connecting rod; the inner links to each other with an edge of a knife screening glass perpendicular to handle of a knife, and it is vertical outwards flexible that edge of a knife screening glass passes handle of a knife.During use, cutter hub and handle of a knife horizontal opening, handle of a knife is stretched out in the connecting rod outer end, and inner pulling edge of a knife screening glass enters in the handle of a knife cavity, does not influence the rubber tapping operation; When carrying, cutter hub and handle of a knife close up, and the cutter hub tail end promotes the connecting rod outer end makes its withdrawal and promotion edge of a knife screening glass stretch out handle of a knife, and blade and the edge of a knife screening glass that stretches out are fastened.

A kind of multi-functional rubber tapping knife of Chinese patent CN200720104411.0 is made up of handle of a knife, knife rest and cutter head for another example, it is characterized in that: hinged formation folding structure is rotated in handle of a knife and knife rest rear end, and knife rest front end and the stationary fit of cutter head chute also automatically lock; Power supply and illumination control apparatus and music are set in the cavity of handle of a knife store playing device, light-emitting device is arranged at the front end of handle of a knife and electrically connects with illumination control apparatus.

Though above-mentioned two kinds of rubber tapping knives can be realized folding, thereby have easy use, portative benefit, yet the structure that they provide all needs to set up a kind of location structure after rubber tapping knife launches, be used to locate blade, and complex structure, location structure less stable in the middle of actual, aged deterioration easily turns over easily in the middle of the use and hurts the operator.

The utility model content

The purpose of this utility model be to overcome the collapsible rubber tapping knife of prior art launch to use in easily turnover and directly lose function of use even the defective of contingency occurs, provide a kind of simple in structure, with low cost, actuate freely, and deployment opening can not turn down, the collapsible of good stability exempts to grind rubber tapping knife.

In order to reach above purpose, the utility model is to be achieved through the following technical solutions: a kind of collapsible rubber tapping knife of exempting to grind, comprise handle of a knife, blade and blade, what blade was detachable is plugged on the blade, blade and handle of a knife rotate hinged formation folding structure, it is characterized in that, described folding structure comprises a connection piece, connector has is with externally threaded cylinder, formation one and the suitable tapped post chamber of described cylinder on the described handle of a knife front end; The free bearing that formation one and described cylinder are hinged on the described blade rear end; At least form a plane that leans mutually with shoulder that described connector and handle of a knife form on the described free bearing.

The maximum characteristics of this rubber tapping knife are before it launches to use, the further distance of free bearing and handle of a knife of threaded engagement by cylinder and post chamber, make free bearing being pressed against on the shoulder that connector and handle of a knife form tightly, no longer folding the rotation, in order to guarantee that this presses the stability of location, in when design, on the free bearing on above-mentioned contact-making surface design the plane is arranged, face and face are close to the most stable.Eliminate the defective that collapsible rubber tapping knife launches easy turnover in the use with very simple structure.

As preferably, described cylinder one end forms the convex body of area of section less than cylinder, convex body is the cross section scope that its section edges of flat lumpy structure is no more than cylinder, and convex body is hinged on the described free bearing, leaves the gap between the shoulder that free bearing and described convex body and cylinder form.

Because in free bearing and connector articulated structure, free bearing is the integral coating connector, if it is very big directly to coat the structure of free bearing so, so adopt the convex body of interfacial area less than it is set on connector, go to be hinged with convex body with free bearing, when having saved material, and convenient folding.But this wherein also needs to guarantee can turning of free bearing, because after convex body is set, just formed a shoulder between convex body and the cylinder, if free bearing from this shoulder lean on too near, will have influence on his folding, so must leave the gap between free bearing and this shoulder, this gap should be not excessive, and is suitable folding just much of that.

As preferably, on the excircle of the handle of a knife end at place, post chamber, a hard cladding is set.The one hard cladding that is used to strengthen this part is set on the handle of a knife end excircle at place, post chamber, also can plays effect attractive in appearance.

As preferably, blade is " V " font structure, and blade one end is flat and sharp cutter head, and the other end is a groove; Groove plugs stationary fit with the chimb of described blade front end with removably and is connected.Adopt this blade for convenience detach, after blade uses passivation, the blade that can more renew, thus saved the operation of skive blade, know what " V " font handle of a knife was difficult to grind, and this blade structure is simple, cost is also low, very suitable.

As preferably, blade is " V " font structure, and blade one end is flat and sharp cutter head, and the other end is a lug; Lug plugs stationary fit with the clip slot of described blade front end with removably and is connected.Adopt this blade for convenience detach, after blade uses passivation, the blade that can more renew, thus saved the operation of skive blade, know what " V " font handle of a knife was difficult to grind, and this blade structure is simple, cost is also low, very suitable.

As preferably, blade is " V " font structure, and blade one end is flat and sharp cutter head, has the auricle of inside turnover on " V " font seamed edge of the other end, forms between auricle and the blade and plugs the gap that cooperates with the chimb of described blade front end.Adopt this blade for convenience detach, after blade uses passivation, the blade that can more renew, thus saved the operation of skive blade, know what " V " font handle of a knife was difficult to grind, and this blade structure is simple, cost is also low, very suitable.

Beneficial effect: the maximum characteristics of this rubber tapping knife are before it launches to use, the further distance of free bearing and handle of a knife of threaded engagement by cylinder and post chamber, make free bearing being pressed against on the shoulder that connector and handle of a knife form tightly, no longer folding the rotation, in order to guarantee that this presses the stability of location, in when design, on the free bearing on above-mentioned contact-making surface design the plane is arranged, face and face are close to the most stable.Eliminate the defective that collapsible rubber tapping knife launches easy turnover in the use with very simple structure.

Description of drawings

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is a kind of fit structure schematic diagram of the utility model blade and blade;

Fig. 3 is the another kind of fit structure schematic diagram of the utility model blade and blade;

Fig. 4 is also a kind of fit structure schematic diagram of the utility model blade and blade;

Fig. 5 launches the view that use the back for the utility model;

Fig. 6 launches the view that the back is about to the location for the utility model;

Fig. 7 folds into the view of certain phase for the utility model;

Fig. 8 is about to the view of location for the folding back of the utility model;

The view that Fig. 9 carries after folding for the utility model.

Among the figure: 1-handle of a knife, 2-blade, 3-post chamber, 4-connector, 5-free bearing, 6-breach, 7-cylinder, 8-convex body, 9-rotating shaft, 10-hard cladding, 11-blade, 21-chimb, 22-clip slot, 111-cutter head, 112-groove, 113-lug, 114-auricle.

Embodiment

Below in conjunction with specific embodiments and the drawings the utility model is further described.

Embodiment 1: as depicted in figs. 1 and 2, a kind of collapsible rubber tapping knife of exempting to grind comprises handle of a knife 1, blade 2 and blade 11, and blade 11 is " V " font structure, and blade 11 1 ends are flat and sharp cutter head 111, and the other end is a groove 112; Groove 112 plugs stationary fit with the chimb 21 of blade 2 front ends with removably and is connected.

Blade 2 rotates hinged formation folding structure with handle of a knife 1, and the folding structure comprises a connection piece 4, and connector 4 has is with externally threaded cylinder 7, form on handle of a knife 1 front end one with the suitable tapped post chamber 3 of cylinder 7; On the excircle of the handle of a knife end at 3 places, post chamber a hard cladding 10 is set, hard cladding 10 is preferably selected hard materials such as stainless steel for use.

Cylinder 7 one ends form the convex body 8 of area of section less than cylinder 7, and convex body 8 is the cross section scope that its section edges of flat lumpy structure is no more than cylinder 7.The free bearing 5 that formation one and convex body 8 are hinged on blade 2 rear ends, free bearing 5 is a frustum cone structure, and its size adapts with handle of a knife 1 size that post chamber 3 ends are set, and in other words its size is greater than the area of section of cylinder 7.Free bearing 5 is provided with one can allow the breach 6 that convex body 8 passes through, and convex body 8 is hinged in the breach 6 on the free bearing 5 by a rotating shaft 9, and free bearing 5 leaves the gap between the position on the convex body 8 guarantees shoulder that itself and convex body 8 and cylinder 7 form.

Free bearing 5 is a frustum cone structure, its two sides (top and below, promptly launch the back above towards the blade face, promptly launch the back below towards the handle of a knife face) are and press the plane, so when blade and handle of a knife expansion, the shoulder that following and connector 4 on the free bearing and handle of a knife 1 form leans the location mutually.

Embodiment 2: as shown in Figure 3, blade 11 is " V " font structure, and blade 11 1 ends are flat and sharp cutter head 111, and the other end is a lug 113; Lug 113 plugs stationary fit with the clip slot 22 of blade 2 front ends with removably and is connected.All the other are with embodiment 1.

Embodiment 3: as shown in Figure 4, blade 11 is " V " font structure, blade 11 1 ends are flat and sharp cutter head 111, have the auricle 114 of inside turnover on " V " font seamed edge of the other end, form between auricle 114 and the blade 11 and plug the gap that cooperates with the chimb 21 of blade 2 front ends.All the other are with embodiment 1.

It is practical: when use (1), order is referring to Fig. 9, Fig. 8, Fig. 7, Fig. 6, Fig. 5, the distance of separating free bearing and handle of a knife by the threaded engagement in cylinder and post chamber, make free bearing have enough spacing upsets, then with blade and handle of a knife horizontal opening, then the further distance of free bearing and handle of a knife of the threaded engagement by cylinder and post chamber again makes below the free bearing round platform to form being pressed against on the shoulder that connector and handle of a knife form tightly and to locate.

When (2) carrying, order is referring to Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, the distance of separating free bearing and handle of a knife by the threaded engagement in cylinder and post chamber, make free bearing have enough spacing upsets, then cutter hub and handle of a knife are closed up, then the further distance of free bearing and handle of a knife of the threaded engagement by cylinder and post chamber again makes above the free bearing round platform to form being pressed against on the shoulder that connector and handle of a knife form tightly and to locate.

Above-described only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not breaking away under the technical characterictic prerequisite of the utility model important improvement; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. collapsiblely exempt to grind rubber tapping knife for one kind, comprise handle of a knife, blade and blade, what blade was detachable is plugged on the blade, blade and handle of a knife rotate hinged formation folding structure, it is characterized in that, described folding structure comprises a connection piece, and connector has is with externally threaded cylinder, formation one and the suitable tapped post chamber of described cylinder on the described handle of a knife front end; The free bearing that formation one and described cylinder are hinged on the described blade rear end; At least form a plane that leans mutually with shoulder that described connector and handle of a knife form on the described free bearing.

2. the collapsible rubber tapping knife of exempting to grind according to claim 1, it is characterized in that, described cylinder one end forms the convex body of area of section less than cylinder, convex body is the cross section scope that its section edges of flat lumpy structure is no more than cylinder, convex body is hinged on the described free bearing, leaves the gap between the shoulder that free bearing and described convex body and cylinder form.

3. the collapsible rubber tapping knife of exempting to grind according to claim 2 is characterized in that, on the excircle of the handle of a knife end at place, post chamber a hard cladding is set.

4. according to claim 1 or the 2 or 3 described collapsible rubber tapping knives of exempting to grind, it is characterized in that blade is " V " font structure, blade one end is flat and sharp cutter head, and the other end is a groove; Groove plugs stationary fit with the chimb of described blade front end with removably and is connected.

5. according to claim 1 or the 2 or 3 described collapsible rubber tapping knives of exempting to grind, it is characterized in that blade is " V " font structure, blade one end is flat and sharp cutter head, and the other end is a lug; Lug plugs stationary fit with the clip slot of described blade front end with removably and is connected.

6. according to claim 1 or the 2 or 3 described collapsible rubber tapping knives of exempting to grind, it is characterized in that, blade is " V " font structure, blade one end is flat and sharp cutter head, form between the auricle that has inside turnover on " V " font seamed edge of the other end, auricle and blade and plug the gap that cooperates with the chimb of described blade front end.