CN108507268A - A kind of refrigerator - Google Patents

Abstract

The present invention proposes that a kind of refrigerator, including cabinet and running part, running part are connect by a link with cabinet, and running part includes walking axle and 2 traveling wheels being rotatably arranged in walking axle, and elastic component is provided between 2 traveling wheels；It is both provided with brake structure above each running part, brake structure includes foot-operated sheet, brake block and lever, the first brake piece and 2 the second brake blocks in brake block ontology both sides are set that brake block includes brake block ontology, is arranged on brake block ontology, for first brake piece between the second brake block, lever is inserted into the bottom end on the link and positioned at brake block ontology.It is laborious to solve the existing brake of refrigerator brake structure in the prior art through the invention, the low problem of brake structure service life.

Description

a freezer

technical field

The invention relates to an improvement of the structure of a refrigerator.

Background technique

The caster structure of existing freezer products mainly consists of a caster bracket, a caster shaft, a wheel hub made of PP and an outsourcing PU resin tire layer. A brake structure is provided, and the brake structure mainly includes a brake pad, a brake pad, an articulated extruded piece, and a brake button. As shown in FIG. The link mechanism, when braking, presses down on the brake pad 5 through an active force, and the brake pad 5 drives the movable connection extrusion part 9 and the brake button 10 to move. When the movable connection extrusion part 9 and the brake button 10 are located on the same straight line , reaching the dead point position, at this time the brake pad 5 is in contact with the caster, but because this scheme mainly uses the dead point principle of the linkage mechanism to brake, the whole process is only a pressing process of the brake pad 5, and only the movement to the dead point is performed when braking. Only when the position brake pad 5 touches the caster can the brake be realized, which is laborious, and when the brake mechanism is in the braking state, it corresponds to the dead point position of the brake mechanism. Resulting in low product life.

Contents of the invention

The present invention provides a refrigerator, which solves the problems of laborious braking and low service life of the braking structure of the refrigerator in the prior art.

In order to achieve the purpose of solving the above-mentioned technical problems, the present invention adopts the proposed freezer and adopts the following technical solutions to achieve:

A refrigerator, comprising a cabinet body and a walking part, at least two sets of the walking parts are provided, the walking parts are connected to the cabinet body through a connecting frame, and each of the walking parts includes a walking shaft and two rotating sets On the walking wheel on the walking shaft, an elastic member is arranged between the two walking wheels; a braking structure is provided above each walking part, and the braking structure includes pedals, brake pads and levers, and the brake pads include The brake pad body, the first brake pad arranged on the brake pad body and the two second brake pads arranged on both sides of the brake pad body, the first brake pad is located between the second brake pads, the lever Inserted on the connecting frame and located at the bottom end of the brake pad body, the brake pad body moves downward with the lever as the fulcrum under the pressure of the pedal, driving the second brake pad to move and compress the travel at both ends. The wheel moves inward, and the road wheel is braked by the frictional force of the side of the first brake pad and the second brake pad against the road wheel.

The present invention also includes the following additional technical features:

Further, an accommodating cavity for accommodating the walking part is formed on the connecting frame, the brake pad is inserted into the accommodating cavity, one end of which is fixed to the connecting frame, and the pedal is arranged on the brake pad. above the brake pad body and corresponding to the other end of the brake pad body.

Further, a brake assembly is formed between the first brake pad and the second brake pad, and the brake assembly includes a raised rib provided on the outer surface of the first brake pad and a raised rib provided on the inner surface of the second brake pad. wedge-shaped protrusion with the tip of the wedge-shaped protrusion facing downward.

Further, there are multiple raised ribs, and the tips of the raised ribs face downward.

Further, protruding ribs are provided on both outer surfaces of the first brake pad, and the protruding ribs cooperate with the wedge-shaped protrusions on the second brake pad on the corresponding side.

Further, the brake pad body is an elastic piece with a bending arc, and the bending angle of the elastic piece is 60-70 degrees.

Further, the traveling wheel includes a hub and an elastic tire layer sheathed on the hub, and a buffer sealing structure is arranged on the tire layer.

Further, a plurality of buffer holes uniformly arranged along the circumferential direction of the tire layer are arranged on the tire layer, and the buffer holes pass through both ends of the tire layer to form a cavity on the tire layer. The cavity is filled with gas, and sealing gaskets are sealed at both ends of the cavity to form the buffer sealing structure.

Further, the material of the hub is PP, and the material of the tire layer is rubber.

Further, an assembly hole is provided inside the connection frame, and the brake pad body is riveted and fixed on the connection frame through the assembly hole by a rivet.

The present invention has the following advantages and positive effects:

The present invention proposes a refrigerator, which includes a cabinet body and a walking part. There are at least two sets of the walking parts. The walking part is connected to the cabinet body through a connecting frame. On the traveling wheel, elastic parts are arranged between the two traveling wheels; a braking structure is provided above each traveling part, and the braking structure includes pedal pads, brake pads and levers, and the brake pads include the brake pad body, which is arranged on the brake The first brake pad on the pad body and the two second brake pads arranged on both sides of the brake pad body, the first brake pad is located between the second brake pads, the lever is inserted on the connecting frame and located at the bottom of the brake pad body At the end, the brake pad body moves downward with the lever as the fulcrum under the pressure of the pedal pad, driving the second brake pad to move and compress the running wheels at both ends to move inward, and the brake assembly is sandwiched between the first brake pad and the second brake pad Between the road wheel brakes. Through the walking part of the present invention, the pedals can be pressed down when braking, so that the pedals can exert force on the brake pad body. The brake pad body uses the lever as the rotating shaft, and the brake pad body drives the first brake pad and the second brake pad. The pads move down synchronously, and at the same time, the second brake pad compresses the running wheel and moves inward, and the running wheel located between the first brake pad and the second brake pad is clamped and friction is provided through the side at the same time. It only needs to brake the traveling wheels, the brake operation is simpler and more convenient, and the parts connected with it will not be damaged during braking, which prolongs the service life of the caster wheel structure of the refrigerator.

Description of drawings

Fig. 1 is a structural schematic diagram of a brake structure in the prior art;

Fig. 2 is the structural representation of freezer of the present invention;

Fig. 3 is a structural schematic diagram 1 of the walking part of the refrigerator of the present invention;

Fig. 4 is a structural schematic diagram II of the walking part of the refrigerator of the present invention;

Fig. 5 is a structural schematic diagram three of the running part of the refrigerator of the present invention;

Fig. 6 is a schematic structural view of the walking wheels of the walking part of the refrigerator of the present invention.

Fig. 7 is a second structural schematic diagram of the running wheels of the running part of the refrigerator of the present invention.

Detailed ways

The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Referring to Fig. 2-shown in Fig. There are at least 2 groups of parts 2. In order to ensure the stability of the operation of the refrigerator, there are 4 groups of walking parts 2 in this embodiment, which are correspondingly arranged at the four corners of the refrigerator. The cabinet body 1 is connected, preferably, each of the walking parts 2 in this embodiment includes a walking shaft 21 and two walking wheels 22 that are rotatably arranged on the walking shaft 21, that is, in this embodiment, the The caster structure has been changed from a single wheel to a double-wheel structure. The weight of the refrigerator carried on each wheel can be halved through the double-wheel structure, which effectively avoids the problem of low service life caused by a large load capacity of a single wheel; of course, this embodiment The walking wheels 22 in the can also select the structure of multiple wheels such as 3 wheels or 4 wheels according to the size of the actual freezer size and the load-bearing capacity of the freezer, and there is no specific limitation here.

When setting, an elastic member 3 is arranged between the two traveling wheels 22. Preferably, the elastic member 3 is selected from a spring, and the elastic member 3 is sleeved on the traveling shaft 21 and one end thereof leans against one of the traveling wheels 22. One end leans against another walking wheel 22, and the elastic member 3 is between the two traveling wheels 22. When the elastic member 3 is compressed by a lateral force, the traveling wheels 22 arranged at both ends of the elastic member 3 can be moved in the lateral direction. It produces a certain amount of displacement on the road to reduce the impact on the freezer when the road conditions are not good, and has a certain buffering and shock absorption effect. A brake structure 7 is provided above each walking part 2. Specifically, the brake structure 7 includes a pedal piece 71, a brake piece 72 and a lever 73. The brake piece 72 includes a brake piece body 721, and is arranged on the brake piece body 721. The first brake pad 722 on the top and the two second brake pads 723 arranged on both sides of the brake pad body 721, when set, the road wheel 22 is arranged between the first brake pad 722 and the second brake pad 723, preferably Yes, the brake pad body 721, the first brake pad 722 and the second brake pad 723 are integrally formed, and the second brake pad 723 is symmetrically arranged on both sides of the brake pad body 721 and is perpendicular to the brake pad body 721. The first brake pad 722 is located on the brake pad body 721 between the two second brake pads 723 and is also perpendicular to the brake pad body 721. The connecting frame 6 is formed with an accommodating cavity for accommodating the walking part 2. The brake pad body 721 is inserted into the accommodating cavity, and one end thereof is fixed to the connecting frame 6. Specifically, an assembly hole can be provided inside the connecting frame 6, and the brake pad body 721 is riveted through the assembly hole by a rivet. fixed on the connecting frame 6. The other end of the brake pad body 721 is a suspended end, and the pedal pad 71 is disposed above the brake pad body 721 and corresponding to the position of the suspended end of the other end of the brake pad body 721 . The lever 73 is inserted on the connecting frame 6 and abuts against the bottom end of the brake pad body 721 . Preferably, the brake pad body 721 is an elastic piece with a bending arc, and the bending angle of the elastic piece is 60-70 degrees. The brake pad body 721 is elastic and has a certain degree of pre-bending, which can ensure that when it is under the pressure of the pedal pad 71, it will elastically deform and move downward with the lever 73 as the fulcrum. The brake pad body 721 elastically deforms under the pressure of the pedal pad 71 with the lever 73 as the fulcrum and begins to move downward, driving the second brake pad 723 to move and compress the walking wheels 22 at both ends to move inward, passing through the first brake pad 722 and the second brake pad 723 side to the frictional force of the road wheel 22 brakes the road wheel 22 .

Further, a brake assembly 8 is formed between the first brake pad 722 and the second brake pad 723, and the brake assembly 8 includes a raised rib 81 arranged on the outer surface of the first brake pad 722 and a The tip of the wedge-shaped protrusion 82 on the inner side of the second brake pad 723 faces downward, that is, the thickness of the wedge-shaped protrusion 82 gradually decreases from top to bottom along the height direction of the second brake pad 723 . When the brake pad body 721 is pressed down, the protruding edge 81 and the wedge-shaped protrusion 82 provided on the side surfaces of the first brake pad 722 and the second brake pad 723 cooperate to apply frictional force to the traveling wheel 22 for braking.

Further, there are multiple raised ribs 81 in this embodiment. Preferably, the raised ribs 82 are also wedge-shaped, with the tip pointing downwards, from top to bottom along the height direction of the first brake pad 722 The thickness becomes smaller in turn. That is, the raised edge 81 also has an inclination angle. When the first brake pad 722 moves downward, it can apply friction to the road wheel 22 by cooperating with the wedge-shaped protrusion 82, shortening the braking time of the road wheel 22 and improving the braking efficiency. .

Further, the two outer surfaces of the first brake pad 722 are provided with protruding ribs 81, and when braking, the protruding ribs 82 and the wedge-shaped protrusions 82 on the second brake pad 723 on the corresponding side The cooperation realizes the braking of the traveling wheel 22 sandwiched between the protruding edge 81 and the wedge-shaped protruding portion 82 .

The specific braking process in this embodiment is: press down on the pedal 71, the force of the pedal 71 is transmitted to the brake pad body 721, and the brake pad body 721 elastically deforms with the lever 73 as the fulcrum through the principle of leverage, and moves downward. , driving the first brake pad 722 and the second brake pad 723 above it to move downwards, and at the same time, because the second brake pad 723 has a wedge-shaped protrusion 82, and along the height direction of the second brake pad 723 from top to bottom When the lower thickness becomes larger, when the two second brake pads 723 move down, the force will be applied to the road wheels 22 through the wedge-shaped protrusions 82. Since there is an elastic member 3 between the road wheels 22, when the two second brake pads 723 are pressed, the two The two road wheels 22 have a certain amount of lateral displacement, and when the second brake pad 723 moves downward, the wedge-shaped protrusions 82 on the side of the second brake pad 723 can compress the road wheel 22 positioned at its corresponding end and constantly move to the inside. , when moving to the position of the first brake pad 722 close to the middle, the side faces on both sides of the road wheel 22 are matched by the raised edge 81 on the first brake pad 722 and the wedge-shaped protrusion 82 on the second brake pad 723 Clamping, at the same time through the frictional force of the two sides of the road wheel 22, the brakes on the road wheel 22 are realized. Since the wedge-shaped protrusion 82 in this embodiment is a wedge-shaped structure, the tip is downward, and the thickness is lower. The smaller the brake pad body 721 is, the squeeze between the first brake pad 722, the second brake pad 723, and the running wheel 22 will show a continuously aggravated change during the process of the brake pad body 721 being gradually pressed down. The continuous downward movement of 71 increases the frictional force of the road wheels 22, and gradually tightens the clamping degree of the road wheels 22, effectively preventing the road wheels 22 from having poor braking effects and causing slippage. Through the brake structure in this embodiment, the force applied to the brake pad body 721 by pressing down on the foot pedal 71, and then the first brake pad 722 and the second brake pad 723 apply side friction to the road wheel 22 to realize the brake pad body 721. The braking of the traveling wheel 22, compared with the way in the prior art that uses a linkage mechanism to brake and needs to move to the dead point for braking, is more labor-saving and convenient, and the force of the stress point between each connecting piece is less. The degree of damage is poor, which prolongs the service life of the product as a whole.

In order to strengthen the shock absorbing effect of the freezer in this embodiment, the structure of the walking wheel 22 in this embodiment is configured to include a hub 221 and an elastic tire layer 222 sleeved on the hub 221, on which the tire layer 222 is arranged There is a buffer sealing structure 4. Preferably, a plurality of buffer holes 41 uniformly arranged circumferentially along the tire layer 222 are provided on the tire layer 222, and the buffer holes 41 run through both ends of the tire layer 222 and are formed on the tire layer 222. The cavity is filled with gas, and sealing gaskets are sealed at both ends of the cavity to form the buffer sealing structure 4, and the buffer sealing structure 4 corresponds to a sealing air bag. Each buffer hole 41 forms a single sealed airbag, even if one or several sealed airbags are damaged, the cushioning and shock absorption effect will not be affected. The cushioning effect of the airbag reduces the vibration impact on the vertical direction of the refrigerator and effectively protects the internal components of the refrigerator.

Simultaneously, when the sealing airbag in this embodiment is braked by the brake mechanism, due to the deformable characteristics of the sealing airbag, the raised rib 82 on the first brake pad 722 can be embedded into the surface of the walking wheel 22, preventing the caster from slipping after braking. happened.

Preferably, the material of the hub 221 is PP, and the material of the tire layer 222 is rubber.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still understand the foregoing embodiments. Modifications are made to the technical solutions described, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

1. A refrigerator, comprising a cabinet body and a walking part, at least 2 groups of the walking parts are arranged, it is characterized in that, the walking part is connected with the cabinet body through a connecting frame, and each of the walking parts includes a walking part Axle and 2 walking wheels that are rotated on the walking shaft, and an elastic member is arranged between the 2 walking wheels; a brake structure is arranged above each walking part, and the brake structure includes pedals, brake pads and levers , the brake pad includes a brake pad body, a first brake pad arranged on the brake pad body and two second brake pads arranged on both sides of the brake pad body, the first brake pad is located on the second brake pad Between them, the lever is inserted on the connecting frame and is located at the bottom end of the brake pad body, and the brake pad body moves downward with the lever as the fulcrum under the pressure of the pedal to drive the second brake pad. The movement of the pads compresses the travel wheels at both ends to move inwardly, and the travel wheels are braked by the frictional force of the sides of the first brake pad and the second brake pad against the travel wheels. 2 . The refrigerator according to claim 1 , wherein an accommodating cavity for accommodating the running part is formed on the connecting frame, the brake pad is inserted in the accommodating cavity, and one end of the brake pad is connected to the connecting frame. Fixed, the pedal piece is arranged above the brake pad body and corresponding to the other end of the brake pad body. 3. The refrigerator according to claim 1, characterized in that a brake assembly is formed between the first brake pad and the second brake pad, and the brake assembly includes a protrusion disposed on the outer surface of the first brake pad. A rib and a wedge-shaped protrusion arranged on the inner side of the second brake pad, the tip of the wedge-shaped protrusion faces downward. 4 . The refrigerator according to claim 3 , wherein there are a plurality of raised ribs, and the raised ribs are wedge-shaped, with the tip of the wedge facing downward. 5 . 5. The refrigerator according to claim 1, characterized in that, raised ribs are provided on both outer surfaces of the first brake pads, and the raised ribs and the wedge-shaped protrusions on the second brake pads on the corresponding side Ministry of cooperation. 6. The refrigerator according to claim 1, wherein the brake pad body is a shrapnel with a bending arc, and the bending angle of the shrapnel is 60-70 degrees. 7 . The refrigerator according to claim 2 , wherein the traveling wheel comprises a hub and an elastic tire layer sheathed on the hub, and a buffer sealing structure is arranged on the tire layer. 8 . 8. The refrigerator according to claim 7, wherein a plurality of buffer holes uniformly arranged circumferentially along the tire layer are arranged on the tire layer, and the buffer holes penetrate the two ends of the tire layer and are arranged on the A cavity is formed on the carcass layer, the cavity is filled with gas, and sealing gaskets are sealed at both ends of the cavity to form the buffer sealing structure. 9. The freezer according to claim 1, wherein the material of the hub is PP, and the material of the tire layer is rubber. 10 . The refrigerator according to claim 1 , wherein an assembly hole is provided inside the connection frame, and the first brake pad is riveted and fixed on the connection frame through the assembly hole by a rivet. 11 .