阅读说明：本技术 一种铸造装置及铸造模具 (Casting device and casting mould ) 是由 王洪成 于 2021-01-18 设计创作，主要内容包括：本发明公开了一种铸造装置及铸造模具,包括上模具和下模具,所述上模具的外壁下端设置有下模具,所述下模具的内部下方设置有调整组件,所述调整组件包括套块、螺纹杆、转把、第一支座、导轨、支杆、第二支座和销轴,所述导轨的两端与下模具固定相连,所述导轨的上端前后两侧均设置有支杆,下端所述第二支座均与套块固定相连。该铸造装置及铸造模具,结构科学合理,使用安全方便,通过模件、型腔、下型砂、螺纹杆、套块、支杆和横板之间的配合,使螺纹杆通过套块和支杆驱动横板进行竖直方向的位置调整,进而调整了型腔下方的下型砂厚度,避免了需要在下模具处铺设较厚的型砂才能满足型腔的形成导致影响铸造效率的问题。(The invention discloses a casting device and a casting die, which comprise an upper die and a lower die, wherein the lower end of the outer wall of the upper die is provided with the lower die, an adjusting assembly is arranged below the inner part of the lower die, the adjusting assembly comprises a sleeve block, a threaded rod, a rotating handle, a first support, a guide rail, a support rod, a second support and a pin shaft, two ends of the guide rail are fixedly connected with the lower die, the front side and the rear side of the upper end of the guide rail are respectively provided with the support rod, and the second support at the lower end is fixedly connected with the sleeve block. This casting device and casting mould, structure scientific and reasonable, convenience safe in utilization, through the cooperation between module, die cavity, lower molding sand, threaded rod, cover block, branch and the diaphragm, make the threaded rod carry out the position adjustment of vertical direction through cover block and branch drive diaphragm, and then adjusted the lower molding sand thickness of die cavity below, avoided needing to lay the problem that the formation that thicker molding sand could satisfy the die cavity leads to influencing casting efficiency in lower mould department.)

1. The utility model provides a casting device and casting mould, includes mould (1) and bed die (5), the outer wall lower extreme of going up mould (1) is provided with bed die (5), its characterized in that: an adjusting component (4) is arranged below the inner part of the lower die (5);

the adjusting assembly (4) comprises a sleeve block (401), a threaded rod (402), a rotating handle (403), a first support (404), a guide rail (405), a support rod (406), a second support (407) and a pin shaft (408);

the outer wall left and right sides of threaded rod (402) all rotates with bed die (5) through the bearing and links to each other, the outer wall right side rigid coupling of threaded rod (402) has a plurality of commentaries on classics (403), the equal screw thread in outer wall left and right sides of threaded rod (402) has linked to each other cover block (401), both sides all slide around cover block (401) and have linked to each other guide rail (405), the both ends and bed die (5) of guide rail (405) are fixed to link to each other, both sides all are provided with branch (406) around the upper end of guide rail (405), the both ends of branch (406) are passed through round pin axle (408) and are rotated with first support (404) and second support (407) respectively and link to each other, the lower extreme second support (407) all link to each other with cover block (401).

2. The casting apparatus and the casting mold according to claim 1, wherein: the thread angle angles of the external threads on the left outer wall and the right outer wall of the threaded rod (402) are opposite.

3. The casting apparatus and the casting mold according to claim 1, wherein: the left and right supporting rods (406) and the sleeve blocks (401) are axially symmetrically distributed by taking the vertical center of the lower die (5) as a reference.

4. The casting apparatus and the casting mold according to claim 1, wherein: the inner sides of the upper die (1) and the lower die (5) are provided with casting components (3);

the casting assembly (3) comprises upper molding sand (301), a cavity (302), lower molding sand (303), a transverse plate (304), a water inlet (305), a water outlet (306), a fan (307) and a bent pipe (308);

the upper molding sand (301) and the lower molding sand (303) are respectively stacked inside the inner walls of the upper mold (1) and the lower mold (5), a cavity (302) is formed inside the upper molding sand (301) and the lower molding sand (303), the transverse plate (304) is positioned inside the lower mold (5), the outer wall of the transverse plate (304) is attached to the inner wall of the lower die (5), the upper part of the transverse plate (304) is closely attached to the lower molding sand (303), a fan (307) is arranged inside the lower end of the transverse plate (304), a bent pipe (308) is arranged inside the upper part of the transverse plate (304), the left side and the right side of the lower end of the elbow (308) are respectively provided with a water outlet (306) and a water inlet (305), the elbow (308) is communicated with an external water flow pipeline through a water outlet (306) and a water inlet (305), the front end, the rear end, the left end and the right end of the lower end of the transverse plate (304) are fixedly connected with the first support (404).

5. The casting apparatus and the casting mold according to claim 1, wherein: backing plates (6) are fixedly connected to the front side and the rear side of the outer walls of the upper die (1) and the lower die (5), and auxiliary assemblies (2) are arranged on the outer walls of the upper die (1) and the lower die (5);

the auxiliary assembly (2) comprises a ball body (201), an end plate (202), a sleeve (203), a vertical rod (204), anti-skid grains (205), a bayonet lock (206), a sliding block (207) and a spring (208);

the sleeves (203) are respectively positioned at the left end and the right end of the inner side of the backing plate (6), the sliding blocks (207) are respectively arranged inside the upper side and the lower side of each sleeve (203), the outer wall of the sliding block (207) is in clearance fit with the sleeve (203), the outer side of the sliding block (207) is fixedly connected with the ball body (201) through a vertical rod (204), a clamping structure is formed between the ball body (201) and the backing plate (6), a spring (208) is arranged on the inner side of the sliding block (207), the upper and lower both sides of spring (208) all link to each other with slider (207) is fixed, both ends have all been processed anti-skidding line (205) about the outer wall of sleeve (203), and are a plurality of both ends are inboard about the outer wall of last mould (1) and bed die (5) is rigid coupling respectively in end plate (202), and the upper end the equal rigid coupling of lower extreme of end plate (202) has bayonet lock (206), bayonet lock (206) run through lower extreme end plate (202).

6. The casting apparatus and the casting mold according to claim 5, wherein: a sliding structure is formed between the sliding blocks (207) and the sleeve (203).

7. The casting apparatus and the casting mold according to claim 5, wherein: the radian of the outer walls of the spheres (201) is consistent with that of the inner wall of the backing plate (6).

8. The casting apparatus and the casting mold according to claim 1, wherein: the inner centers of the upper die (1) and the lower die (5) are provided with a die piece (7), the die piece (7) is attached to the inner side inner walls of the upper molding sand (301) and the lower molding sand (303), and the shapes of the inner walls of the die piece (7) and the cavity (302) are consistent.

Technical Field

The invention relates to the technical field of casting, in particular to a casting device and a casting mold.

Background

The casting mold is to form a cavity with the same structural size as the part in the sand mold by using other easily-formed materials in advance in order to obtain the structural shape of the part, then to put the mold into the sand mold, and to pour a fluid liquid into the cavity, after the liquid is cooled and solidified, the part with the same shape and structure as the mold can be formed.

But prior art exists and need lay the problem that the formation that thicker molding sand could satisfy the die cavity leads to influencing casting efficiency in lower mould department, and the casting device can only lead to the lower problem of cooling efficiency mostly depending on natural cooling, still has the quick installation or the dismantlement problem that can't go on upper and lower mould straining device simultaneously because of vibrations or mistake bump the problem that leads to too early die sinking to cause the relatively poor processing effect easily at metal liquid refrigerated in-process.

Disclosure of Invention

The invention aims to provide a casting device and a casting mold, which aim to solve the problem that the casting efficiency is influenced because a thicker molding sand is laid at the lower mold in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a casting device and a casting mold comprise an upper mold and a lower mold, wherein the lower end of the outer wall of the upper mold is provided with the lower mold, and an adjusting assembly is arranged below the inner part of the lower mold;

the adjusting assembly comprises a sleeve block, a threaded rod, a rotating handle, a first support, a guide rail, a support rod, a second support and a pin shaft;

the outer wall left and right sides of threaded rod all rotates with the bed die through the bearing and links to each other, the outer wall right side rigid coupling of threaded rod has a plurality of commentaries on classics handles, the equal screw thread in the outer wall left and right sides of threaded rod links to each other has the cover block, both sides all slide around the cover block and link to each other has the guide rail, the both ends and the bed die of guide rail are fixed continuous, both sides all are provided with branch around the upper end of guide rail, the both ends of branch are rotated with first support and second support respectively through the round pin axle and are linked to each other, the lower extreme the second support all links to each other with.

Preferably, the thread angles of the external threads on the left outer wall and the right outer wall of the threaded rod are opposite.

Preferably, the left and right supporting rods and the sleeve blocks are axially symmetrically distributed by taking the vertical center of the lower die as a reference.

Preferably, the inner sides of the upper die and the lower die are provided with casting components;

the casting assembly comprises upper molding sand, a cavity, lower molding sand, a transverse plate, a water inlet, a water outlet, a fan and a bent pipe;

go up the molding sand and the lower molding sand is stacked inside the inner wall of last mould and bed die respectively, the inside of going up molding sand and lower molding sand is formed with the die cavity, the diaphragm is located the inside of bed die, and the outer wall of diaphragm and the inner wall of bed die laminate mutually, the top of diaphragm and the inseparable laminating of lower molding sand, the lower extreme internally mounted of diaphragm has the fan, the top internally mounted of diaphragm has the return bend, the lower extreme left and right sides of return bend has processed outlet and water inlet respectively, the return bend is linked together through outlet and water inlet and external rivers pipeline, both ends all link to each other with first support is fixed around the lower extreme of diaphragm.

Preferably, the front side and the rear side of the outer walls of the upper die and the lower die are fixedly connected with backing plates, and the outer walls of the upper die and the lower die are provided with auxiliary components;

the auxiliary assembly comprises a ball body, an end plate, a sleeve, a vertical rod, anti-skid grains, a clamping pin, a sliding block and a spring;

it is a plurality of both ends about the sleeve is located the inboard of backing plate respectively, the inside slider that all is provided with in telescopic upper and lower both sides, the outer wall of slider all with sleeve clearance fit, the outside of slider all links to each other with the spheroid is fixed through the montant, constitute the block structure between spheroid and the backing plate, the inboard of slider is provided with the spring, the upper and lower both sides of spring all link to each other with the slider is fixed, anti-skidding line has all been processed at both ends about telescopic outer wall, and is a plurality of the end plate rigid coupling respectively is inboard at both ends about the outer wall of last mould and bed die, upper end the equal rigid coupling of lower extreme of end plate has the bayonet lock, the bayonet lock.

Preferably, a sliding structure is formed between the plurality of sliding blocks and the sleeve.

Preferably, the radian of the outer wall of the plurality of spheres is consistent with the radian of the inner wall of the backing plate.

Preferably, the inner centers of the upper and lower molds are provided with molding members which are fitted to the inner walls of the inner sides of the upper and lower molding sands and are in conformity with the shapes of the inner walls of the cavities.

Compared with the prior art, the invention has the beneficial effects that: this casting device and casting mould, structure scientific and reasonable, convenience safe in utilization:

through the module, the die cavity, lower molding sand, the threaded rod, the cover block, cooperation between branch and the diaphragm, before using, the user can be according to specific die shape and size, calculate the inside dimension of molding sand under the die cavity embedding, lower molding sand in the die cavity below is solid, consequently, the rotatable commentaries on classics handle of user, the drive threaded rod rotates, make the threaded rod carry out the position control of vertical direction through cover block and branch drive diaphragm, with the distance of this adjustment diaphragm and die cavity, and then adjusted the lower molding sand thickness of die cavity below, the formation of having avoided needing to lay thick molding sand in lower mould department and just can satisfy the die cavity leads to influencing casting efficiency's problem.

Through the die cavity, the return bend, the water inlet, the outlet, fan and the cooperation between the lower mould sand, when casting, can pour into the preformed hole of molten metallic liquid through the top, make metallic liquid be full of inside the die cavity, user's accessible water inlet and outlet realize the inside rivers of return bend and flow this moment, the fan can start simultaneously, lower mould sand is carried and is received return bend refrigerated air current, because the gas permeability of molding sand, metallic liquid can be with higher speed at the inside cooling efficiency of die cavity, the problem that current casting device mostly can only rely on natural cooling to lead to cooling efficiency lower has been avoided.

Through the cooperation between the ball body, the sleeve, the vertical rod, the sliding block, the base plate, the spring, the upper die and the lower die, in the process of cooling the metal liquid, a user can pull the ball body outwards to enable the ball body to drive the sliding block to move outwards through the vertical rod, the spring is stretched, then the vertical rod passes through the clamping groove of the base plate, and then the ball body is loosened, so that the ball body can be pulled by the upper base plate and the lower base plate, further the tensioning of the upper die and the lower die is realized, and the problem of poor processing effect caused by early die opening due to vibration or mistaken collision in the process of cooling the metal liquid is avoided;

in the use, the user can manually pull the spheroid outwards afterwards and take out the sleeve from the backing plate, or install the sleeve in backing plate department, makes sleeve and spheroid install or dismantle fast according to user's needs, has avoided prior art can't carry out the quick installation or the dismantlement problem of mould overspeed device tensioner about as required.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of a half-section of the present invention;

FIG. 5 is a bottom view of the lower die, sleeve block and threaded rod of FIG. 1;

FIG. 6 is a right side view block diagram of the lower mold, sleeve and upper mold of FIG. 1;

fig. 7 is a top view block diagram of the lower mold, elbow and end plate of fig. 4.

In the figure: 1. the casting mold comprises an upper mold, 2, an auxiliary assembly, 201, a ball, 202, an end plate, 203, a sleeve, 204, a vertical rod, 205, an anti-skid pattern, 206, a clamping pin, 207, a sliding block, 208, a spring, 3, a casting assembly, 301, upper molding sand, 302, a cavity, 303, lower molding sand, 304, a transverse plate, 305, a water inlet, 306, a water outlet, 307, a fan, 308, a bent pipe, 4, an adjusting assembly, 401, a sleeve block, 402, a threaded rod, 403, a rotating handle, 404, a first support, 405, a guide rail, 406, a support rod, 407, a second support, 408, a pin shaft, 5, a lower mold, 6, a backing plate, 7 and a mold.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a casting device and a casting die comprise an upper die 1 and a lower die 5, wherein the lower end of the outer wall of the upper die 1 is provided with the lower die 5, an adjusting component 4 is arranged below the inner part of the lower die 5, the adjusting component 4 comprises a sleeve block 401, a threaded rod 402, a rotating handle 403, a first support 404, a guide rail 405, a support rod 406, a second support 407 and a pin shaft 408, the left side and the right side of the outer wall of the threaded rod 402 are rotatably connected with the lower die 5 through bearings, the lower die 5 can rotatably support the threaded rod 402, the right side of the outer wall of the threaded rod 402 is fixedly connected with a plurality of rotating handles 403, the rotating handles 403 can drive the threaded rod 402 to rotate, the left side and the right side of the outer wall of the threaded rod 402 are both in threaded connection with the sleeve block 401, the threaded rod 402 can drive the sleeve block 401 to move through rotation, the front side and the rear side of the sleeve block 401 are both slidably connected with, the sleeve block 401 can drive the transverse plate 304 to move through the supporting rod 406, two ends of the supporting rod 406 are respectively connected with the first support 404 and the second support 407 in a rotating mode through a pin shaft 408, the second support 407 at the lower end is fixedly connected with the sleeve block 401, the thread angle angles of the external threads on the left outer wall and the right outer wall of the threaded rod 402 are opposite, the threaded rod 402 can drive the sleeve block 401 to synchronously move outwards or inwards, and the left supporting rod 406, the right supporting rod 406 and the sleeve block 401 are axially symmetrically distributed by taking the vertical center of the lower die 5 as a reference;

through module 7, die cavity 302, lower molding sand 303, threaded rod 402, nest block 401, cooperation between branch 406 and the diaphragm 304, before using, the user can be according to concrete module 7 shape and size, calculate the inside dimension of molding sand 303 under the die cavity 302 embedding, lower molding sand 303 in die cavity 302 below is solid, consequently, the rotatable commentaries on classics of user handle 403, drive threaded rod 402 rotates, make threaded rod 402 carry out vertical direction's position adjustment through nest block 401 and branch 406 drive diaphragm 304, with this distance of adjustment diaphragm 304 and die cavity 302, and then adjusted the lower molding sand 303 thickness of die cavity 302 below, avoided needing to lay more molding sand in lower mould 5 department and just can satisfy the formation of die cavity 302 and lead to the problem of influence casting efficiency.

The casting assembly 3 is arranged on the inner sides of the upper mold 1 and the lower mold 5, the casting assembly 3 comprises upper molding sand 301, a cavity 302, lower molding sand 303, a transverse plate 304, a water inlet 305, a water outlet 306, a fan 307 and a bent pipe 308, the upper molding sand 301 and the lower molding sand 303 are respectively stacked inside the inner walls of the upper mold 1 and the lower mold 5, the upper molding sand 301 and the lower molding sand 303 are made of special molding sand and have good shaping and air permeability, the cavity 302 is formed inside the upper molding sand 301 and the lower molding sand 303, the cavity 302 is in a final product shape, the transverse plate 304 is positioned inside the lower mold 5, the outer wall of the transverse plate 304 is attached to the inner wall of the lower mold 5, the transverse plate 304 can move on the inner wall of the lower mold 5, the upper part of the transverse plate 304 is closely attached to the lower molding sand 303, the fan 307 is installed inside the lower end of the transverse plate 304, the fan 307 can convey air to the inner part of the, the left side and the right side of the lower end of the elbow pipe 308 are respectively provided with a water outlet 306 and a water inlet 305, the flow of water inside the elbow pipe 308 can be realized through the water outlet 306 and the water inlet 305, the elbow pipe 308 is communicated with an external water flow pipeline through the water outlet 306 and the water inlet 305, and the left end and the right end of the front side and the rear side of the lower end of the transverse plate 304 are fixedly connected with the first support 404;

through the die cavity 302, return bend 308, water inlet 305, outlet 306, the cooperation between fan 307 and the lower molding sand 303, when casting, can pour into the preformed hole of molten metal through the top, make inside the molding cavity 302 is full of molten metal, user's accessible water inlet 305 and outlet 306 realize the inside rivers of return bend 308 and flow this moment, fan 307 can start simultaneously, lower molding sand 303 carries the air current that receives the cooling of return bend 308, because the gas permeability of molding sand, can accelerate the cooling efficiency of molten metal in the inside of molding cavity 302, the problem that current casting device mostly can only rely on natural cooling to lead to cooling efficiency lower has been avoided.

Backing plates 6 are fixedly connected to the front side and the rear side of the outer walls of an upper die 1 and a lower die 5, auxiliary assemblies 2 are arranged on the outer walls of the upper die 1 and the lower die 5, each auxiliary assembly 2 comprises a ball 201, an end plate 202, a sleeve 203, a vertical rod 204, anti-slip threads 205, a bayonet 206, a sliding block 207 and a spring 208, the sleeves 203 are respectively arranged at the left end and the right end of the inner side of the backing plate 6 to limit the relative positions of the sleeves 203 and the backing plate 6, sliding blocks 207 are respectively arranged inside the upper side and the lower side of each sleeve 203, the outer walls of the sliding blocks 207 are in clearance fit with the sleeves 203, the sliding blocks 207 can move inside the sleeves 203, the outer sides of the sliding blocks 207 are fixedly connected with the balls 201 through the vertical rods 204, a clamping structure is formed between the balls 201 and the backing plates 6, the tightening between the backing plates 6 can be realized through the balls 201, the springs 208 are arranged inside, the slide blocks 207 move outwards to stretch the springs 208, the upper end and the lower end of the outer wall of the sleeve 203 are both provided with anti-slip threads 205, the end plates 202 are fixedly connected with the inner sides of the left end and the right end of the outer wall of the upper die 1 and the lower die 5 respectively, the lower end of the end plate 202 is fixedly connected with the clamping pins 206, the upper die 1 and the lower die 5 can be quickly installed through the matching of the clamping pins 206, the clamping pins 206 penetrate through the end plate 202 at the lower end, a sliding structure is formed between the slide blocks 207 and the sleeve 203, the radian of the outer wall of the spheres 201 is consistent with that of the inner wall of the backing plate 6, the centers of the inner parts of the upper die 1 and the lower die 5 are provided with the modules 7, the modules 7 are attached to the inner walls of;

through the cooperation between the ball 201, the sleeve 203, the vertical rod 204, the sliding block 207, the base plate 6, the spring 208 and the upper die 1 and the lower die 5, in the process of cooling the metal liquid, a user can pull the ball 201 outwards, so that the ball 201 can drive the sliding block 207 to move outwards through the vertical rod 204, the spring 208 is stretched, then the vertical rod 204 passes through a clamping groove of the base plate 6, and then the ball 201 is loosened, so that the ball 201 can be pulled to move the upper base plate 6 and the lower base plate 6, further the tensioning of the upper die 1 and the lower die 5 is realized, and the problem of poor processing effect caused by too early die opening due to vibration or mistaken collision in the process of cooling the metal liquid is avoided;

simultaneously in the use, the user can follow manually outwards pull spheroid 201 and take out sleeve 203 from backing plate 6, or install sleeve 203 in backing plate 6 department, makes sleeve 203 and spheroid 201 can install or dismantle fast according to user's needs, has avoided prior art can't carry out the quick installation or the dismantlement problem of upper and lower mould overspeed device tensioner as required.

When the casting device and the casting mold are required to be used, firstly, a user can tightly lay and compact the lower molding sand 303 in the lower mold 5, and impress the mold 7 with the same shape of the cavity 302 on the lower molding sand 303, then the upper mold 1 is buckled above the lower mold 5, and the upper molding sand 303 is pressed in the upper mold 1, finally the upper mold 1 and the lower mold 5 are buckled, and the mold 7 is taken out and then buckled again, so that the cavity 302 can be formed in the molding sand, when casting is carried out, molten metal can be injected through the reserved hole above, so that the metal liquid fills the cavity 302 of the elbow pipe, at the moment, the user can realize the water flow in the elbow pipe 308 through the water inlet 305 and the water outlet 306, simultaneously, the fan 307 can be started, the lower molding sand 303 can convey the air flow cooled by the elbow pipe 308, and due to the air permeability of the molding sand, the cooling efficiency of the metal liquid in the cavity 302 can, the problem that most of the existing casting devices only rely on natural cooling to cause lower cooling efficiency is solved, in the process of cooling the metal liquid, a user can pull the ball body 201 outwards to enable the ball body 201 to drive the sliding block 207 to move outwards through the vertical rod 204, the stretching spring 208 enables the vertical rod 204 to pass through the clamping groove of the base plate 6, and then the ball body 201 is loosened, so that the ball body 201 can be pulled to the upper base plate 6 and the lower base plate 6, further the tensioning of the upper die 1 and the lower die 5 is realized, the problem that the processing effect is poor due to too early die opening caused by vibration or mistaken collision in the process of cooling the metal liquid is avoided, meanwhile, in the using process, the user can pull the ball body 201 outwards manually to take the sleeve 203 out of the base plate 6, or install the sleeve 203 at the base plate 6, so that the sleeve 203 and the ball 201 can be installed or detached quickly according to the, avoided prior art can't go on the quick installation or the dismantlement problem of upper and lower mould take-up device as required, and before using, the user can be according to concrete module 7 shape and size, calculate the inside dimension of mould cavity 302 embedding moulding sand 303, moulding sand 303 in the mould cavity 302 below is solid, consequently, the user can rotate and change 403, drive threaded rod 402 rotates, make threaded rod 402 carry out the position adjustment of vertical direction through nest block 401 and branch 406 drive diaphragm 304, with this distance of adjustment diaphragm 304 and mould cavity 302, and then adjusted the lower moulding sand 303 thickness of mould cavity 302 below, avoided needing to lay thicker moulding sand in lower mould 5 department and just can satisfy the formation of mould cavity 302 and lead to the problem of influencing casting efficiency.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.