CN110226888A - A kind of Chinese chestnut opening device based on lever construction - Google Patents

Abstract

The invention discloses a kind of Chinese chestnut opening device based on lever construction, including pedestal, shell, top cover, main shaft, blade；The upper end of the main shaft is provided with leverage, the leverage includes: first connecting rod, including first end and second end, and the first end is articulated on the top cover；Second connecting rod, including head end and tail end, the head end and the second end are pivotally connected；The upper end of the main shaft is articulated in the middle part of the second connecting rod, and be formed as power arm from the middle part to the part of the tail end, part from the middle part to the head end is formed as resistance arm, the length of the power arm is greater than the length of the resistance arm, by applying downward power to the tail end of the second connecting rod, drives the main shaft to move down the Chinese chestnut for being placed on the blade on the pedestal and break.While the present invention mitigates user's labor intensity using lever principle, the promotion of efficiency is preferably realized with multiplied strategy.

Description

A chestnut opener based on lever structure

technical field

The invention relates to a chestnut opener based on a lever structure, belonging to the technical field of chestnut openers.

Background technique

Chestnut is a kind of nut that Chinese people like to eat. It needs to be shelled first in the process of eating, but the shell of chestnut is thick and it is very laborious to peel. The prior art generally adopts the shearing method to cut the chestnut shell, which is very inconvenient. The patent with the application number 201810642043.8 discloses a chestnut opener, which includes a housing, an upper cover, a base, a main shaft, a limit piece and a blade. The chestnut is placed on the base through the inlet, and the main shaft is driven down by pressing to make the blade move. The chestnut is broken open, and the applicant finds in use that the chestnut opener needs to apply a lot of force when breaking the chestnut, which is not convenient for use. In addition, the chestnut opener can only open one chestnut at a time, and the operation efficiency is low.

Contents of the invention

The technical problem to be solved by the present invention is to provide a chestnut opener based on a lever structure, so as to solve the problem of inconvenient operation existing when a large force is required to be applied to the chestnut opener.

The technical solution of the present invention is: a kind of chestnut opener based on lever structure, comprising:

base;

The casing is arranged on the base, and the side of the casing is provided with an insertion port for putting the chestnut to be opened on the base;

A top cover is arranged on the housing, and the top cover has an opening;

The main shaft can be vertically movably arranged on the housing, the lower end of the main shaft is located in the housing, and the upper end of the main shaft extends out of the opening of the top cover;

A blade is arranged at the lower end of the main shaft, and the blade moves vertically following the main shaft;

A lever device is provided on the upper end of the main shaft, and the lever device includes:

the first connecting rod includes a first end and a second end, the first end is pivotally connected to the top cover;

the second connecting rod includes a head end and a tail end, the head end is pivotally connected to the second end;

The upper end of the main shaft is pivotally connected to the middle part of the second connecting rod, and the part from the middle part to the tail end is formed as a power arm, and the part from the middle part to the head end is formed as a resistance arm. The length of the power arm is greater than the length of the resistance arm. By applying a downward force to the tail end of the second connecting rod, the main shaft is driven to move downward so that the blade will be placed on the chestnut on the base. break open.

Further, the chestnut opener also includes:

an intermediate disc set at the lower end of the main shaft;

A number of broken pump rods are arranged at intervals on the bottom of the intermediate disc;

The blades are arranged at the bottom of the broken chestnut rods, and the base is provided with accommodating openings corresponding to each of the broken chestnut rods, which are suitable for placing chestnuts.

Further, the chestnut opener also includes:

The limiting piece is arranged on the lower part of the housing and is located below the intermediate plate, and the limiting piece is provided with a hole for the broken pump rod to extend downward;

A spring is sleeved on the part of the broken pump rod between the intermediate plate and the limiting piece;

In a natural state, the spring drives the pump rod to move upwards, so that the blade is away from the receiving opening.

Further, the power arm is detachably arranged on the resistance arm.

Further, the resistance arm is provided with screw holes, and the corresponding power arm is provided with threads.

Further, a hanging ring is provided on the housing, and the resistance arm can be placed on the hanging ring after being disassembled.

Further, the blade is a cross-shaped serrated blade.

Further, the blade is an arc-shaped blade, and the curvature of the arc is similar to the curvature of the shell of a chestnut.

Further, an anti-off device is provided between the top cover and the housing, the anti-off device includes elastic claws and matching slots, the elastic claws are arranged on the top cover, corresponding to the The clamping groove is set on the housing or the elastic claw is set on the housing, the corresponding clamping groove is set on the top cover, and the elastic claw is clamped in the clamping groove middle.

The beneficial effects of the present invention are: compared with the existing chestnut open shelling equipment, the present invention utilizes the principle of leverage to reduce the labor intensity of the user, and at the same time utilizes the multiplication strategy to better realize the improvement of efficiency. In addition, the invention can break open a plurality of chestnuts at one time, which improves the use efficiency.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a sectional view of the housing of the embodiment of the present invention;

Explanation of reference signs: 1 resistance arm, 2 power arm, 3 first connecting rod, 4 top cover, 5 main shaft, 6 housing, 7 insertion inlet, 8 blade, 9 iron sheet, 10 base, 41 elastic claw, 51 Middle plate, 52 springs, 53 broken chestnut rods, 61 draw-in slots, 62 hanging rings, 63 limit pieces.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the invention is further introduced:

Please refer to Fig. 1 and Fig. 2, according to an embodiment of the present invention, a chestnut opener based on a lever structure includes a base 10, a housing 6, a top cover 4, a main shaft 5, a lever device, an intermediate plate 51, and several broken chestnut rods 53, blade 8, spacer 63 and spring 52.

The base 10 is mainly used to support the various parts of the chestnut opener. The base 10 is provided with several accommodation ports suitable for placing chestnuts, and the chestnuts can be placed in the accommodation ports to achieve relative fixation, so as to improve the opening efficiency of chestnuts and quality. The base 10 is welded to the lower end of the shell through the iron sheet 9 . Holes corresponding to the receiving openings are correspondingly provided on the iron sheet 9 .

The casing 6 is arranged on the base 10 , and the side of the casing 6 is provided with an insertion port 7 for putting the chestnut to be opened on the base 10 . Specifically, the bottom of the housing 6 can be fixed or detachably connected to the base 10, for example, the bottom of the housing 6 can be welded to the base 10, or can be screwed to the base 10, preferably the housing 6 can be detachably connected to the base 10, the base 10 can be disassembled to clean the accommodating port like this. Putting inlet 7 can be configured according to the quantity and the position of the receiving port on the base 10, it is advisable to put Chinese chestnut into the receiving port and take it out from the receiving port conveniently.

The top cover 4 is arranged on the casing 6, and the top cover 4 has openings. The top cover 4 can be plugged into the housing 6, or connected to the housing 6 through threads.

The main shaft 5 is vertically movably arranged on the housing 6 , the lower end of the main shaft 5 is located in the housing 6 , and the upper end of the main shaft 5 extends out of the opening of the top cover 4 . The main shaft 5 is mainly used to transmit power, specifically, the power generated by the lever device above it is transmitted to the blade 8, so that the chestnut is broken open.

The lever device is arranged on the upper end of the main shaft 5, and it includes a first connecting rod 3 and a second connecting rod. in,

The first link 3 includes a first end and a second end. The first end is pivotally connected to the top cover 4 and can rotate relative to the top cover 4 .

The second connecting rod includes a head end and a tail end, and the head end is pivotally connected to the second end, that is, the second connecting rod and the first connecting rod 3 can rotate relative to each other. The upper end of the main shaft 5 is pivotally connected to the middle part of the second connecting rod, and the part from the middle part to the tail end of the second connecting rod is formed as a power arm 2, and the part from the middle part to the head end of the second connecting rod is formed as a resistance arm 1. The length of arm 2 is greater than the length of resistance arm 1, constitutes lever device like this, can drive the main shaft 5 to move downwards by applying downward power to the tail end of the second connecting rod so that blade 8 will be placed on the chestnut on base 10 to break. open.

Further, the power arm 2 is detachably arranged on the resistance arm 1 . Specifically, a screw hole is provided on the resistance arm 1 , and a thread is correspondingly provided on the power arm 2 , and the power arm 2 is fixed on the resistance arm 1 through the thread and the screw hole. A hanging ring 62 is provided on the casing 6, and the resistance arm 1 can be placed on the hanging ring 62 after being disassembled. Specifically, the power arm 2 is made into a shape with a smaller threaded end and a larger tail end. At this time, after the power arm 2 is removed, its threaded end can be inserted into the hanging ring 62 to reduce the size of the chestnut opener. occupied space.

The intermediate disc 51 is arranged at the lower end of the main shaft 5 . The main function of the intermediate plate 51 is to connect the main shaft 5 and several broken pump rods 53, so as to transmit the power of the main shaft 5 to several broken pump rods 53. Specifically, the intermediate disc member 51 is a circular disc, which can move along the main shaft 5 in the casing 6 .

Several broken pump rods 53 are arranged on the bottom of the middle disc 51 at intervals. The main function of the broken chestnut rod 53 is to connect the middle disc 51 and the blade 8, so as to transmit the force of the middle disc 51 to the blade 8, so as to achieve the purpose of opening a plurality of chestnuts in one action. The quantity of broken pump rod 53 can be determined as required, for example 4.

The blade 8 is arranged below the main shaft 5 , and the blade 8 moves vertically along with the main shaft 5 . Specifically, blade 8 is arranged on the bottom of each broken pump bar 53, for example, a knife slot is set at broken pump bar 53, and blade 8 is installed in the knife slot. Preferably, the blade 8 is a cross-shaped sawtooth blade 8, preferably an arc blade 8, and the arc is close to the curvature of the chestnut shell, for example, the arc is close to the sampling average data of the chestnut shell curvature.

The limiting piece 63 is arranged at the lower part of the housing 6 and is located below the middle disc 51 , and the limiting piece 63 is provided with a hole for the broken pump rod 53 to extend downward. The limiting piece 63 is fixed and does not move. The function of the limiting piece 63 is to limit the downward movement of the intermediate plate 51 and also serve as a support for the spring 52 .

The spring 52 is sleeved on the part of the broken pump rod 53 between the intermediate plate 51 and the limiting piece 63 . When the broken pump bar 53 moved downwards, the spring 52 was gradually compressed. In the natural state, that is, when the broken pump bar 53 was no longer under stress, the spring 52 drove the broken pump bar 53 to move upwards, so that the blade 8 was far away from the accommodating opening. Preferably, the spring 52 drives the breaker lever 53 to move up so that the blade 8 is hidden inside the housing 6, which can avoid causing harm to the human body.

Preferably, an anti-off device is provided between the top cover 4 and the housing 6, the anti-off device includes elastic claws 41 and matching slots 61, the elastic claws 41 are arranged on the top cover 4, and the corresponding slots 61 It is arranged on the casing 6 ; or the elastic claw 41 is arranged on the casing 6 , and the corresponding engaging groove 61 is arranged on the top cover 4 , and the elastic claw 41 is engaged in the engaging groove 61 . The quantity of the elastic claws 41 and the draw-in slots 61 can be determined according to the needs, generally there are two, which are arranged on the opposite sides respectively, and the anti-loosening device can prevent the top cover 4 from falling off due to the traction force during use.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (9)

1. A chestnut opener based on a lever structure, comprising: base (10); The housing (6) is arranged on the base (10), and the side of the housing (6) is provided with an insertion port (7) for putting the chestnut to be opened into the base (10); a top cover (4), which is arranged on the housing (6), and has an opening on the top cover (4); The main shaft (5) can be arranged vertically on the housing (6), the lower end of the main shaft (5) is located in the housing (6), and the upper end of the main shaft (5) extends out of the outside the said opening of the top cover (4); The blade (8) is arranged at the lower end of the main shaft (5), and the blade (8) moves vertically following the main shaft (5); It is characterized in that a lever device is provided on the upper end of the main shaft (5), and the lever device includes: a first connecting rod (3), including a first end and a second end, and the first end is pivotally connected to the on the top cover (4); the second connecting rod includes a head end and a tail end, the head end is pivotally connected to the second end; The upper end of the main shaft (5) is pivotally connected to the middle part of the second connecting rod, and the part from the middle part to the tail end forms a power arm (2), and the part from the middle part to the head end forms a power arm (2). It is the resistance arm (1), the length of the power arm (2) is greater than the length of the resistance arm (1), and by applying a downward force to the tail end of the second connecting rod, the main shaft (5 ) moves downwards to make the blade (8) break open the chestnut placed on the base (10). 2. The chestnut opener based on the lever structure according to claim 1, wherein the chestnut opener further comprises: an intermediate disc (51), arranged at the lower end of the main shaft (5); Several broken pump rods (53) are arranged at intervals on the bottom of the intermediate disc (51); The blades (8) are arranged at the bottom of the broken chestnut rods (53), and the base (10) is provided with accommodating openings corresponding to each of the broken chestnut rods (53) which are suitable for placing chestnuts. 3. The chestnut opener based on the lever structure according to claim 2, wherein the chestnut opener further comprises: Limiting piece (63), is arranged on the bottom of described casing (6), and is positioned at the below of described intermediate plate (51), and described limiting piece (63) is provided with for described broken pump lever ( 53) A hole extending downward; A spring (52), sleeved on the part of the broken pump rod (53) between the intermediate plate (51) and the limiting piece (63); In a natural state, the spring (52) drives the pump breaker rod (53) to move upwards, so that the blade (8) is away from the receiving opening. 4. The chestnut opener based on a lever structure according to any one of claims 1 to 3, characterized in that, the power arm (2) is detachably arranged on the resistance arm (1). 5. The chestnut opener based on a lever structure according to claim 4, characterized in that, the resistance arm (1) is provided with screw holes, and the corresponding power arm (2) is provided with threads. 6. The chestnut opener based on the lever structure according to claim 5, characterized in that, the housing (6) is provided with a hanging ring (62), and the resistance arm (1) can be placed on the on the hanging ring (62). 7. The chestnut opener based on a lever structure according to claim 3, characterized in that, the blade (8) is a cross-shaped serrated blade (8). 8 . The chestnut opener based on a lever structure according to claim 7 , characterized in that, the blade ( 8 ) is an arc-shaped blade ( 8 ), and the radian of the arc is similar to the radian of the shell of a chestnut. 9. The chestnut opener based on the lever structure according to claim 1, characterized in that, an anti-off device is arranged between the top cover (4) and the housing (6), and the anti-off device includes elastic claws (41) and matching grooves (61), the elastic claws (41) are arranged on the top cover (4), and the corresponding grooves (61) are arranged on the housing (6 ) or the elastic claw (41) is set on the housing (6), the corresponding slot (61) is set on the top cover (4), and the elastic claw (41) locks connected in the card slot (61).