CN114680528A

CN114680528A - Folding clothing show shelf

Info

Publication number: CN114680528A
Application number: CN202111416071.6A
Authority: CN
Inventors: 涂晓雨
Original assignee: Individual
Current assignee: Yichun Kujia Sporting Goods Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-01
Anticipated expiration: 2042-04-29
Also published as: CN114680528B

Abstract

The invention discloses a folding clothes display stand which comprises a base, wherein a folding clothes hanger mechanism is arranged on the base and comprises a rotating shaft, gears are driven to perform gear transmission through the rotation of the driving rotating shaft, a threaded rod is rotated, a lifting block in threaded connection with the threaded rod is lifted on the threaded rod, a rotating arm rod in rotating connection with the rotating arm rod is rotated on the lifting block under the action of an L-shaped connecting rod in the moving process, the folding effect of the folding clothes hanger mechanism is achieved, meanwhile, a dummy display mechanism is arranged above the folding clothes hanger mechanism, and the effect that a dummy model is convenient to mount and dismount on a model base is achieved through arrangement of a limiting fixing seat, a limiting module and a fixing baffle.

Description

Folding clothing show shelf

Technical Field

The invention relates to the technical field of show shelf products, in particular to a folding clothing show shelf.

Background

In recent years, along with the development of society, people have been required to have comfortable wearing, and have gradually developed the matching direction of higher taste and better fitness, and the clothes display rack is a product produced from the requirements of customers, the clothes showing stand is needed to be used in places for selling clothes, such as clothes exhibitions, clothes selling shops, anchor live rooms and the like, the clothes are hung by the clothes showing stand, the clothes are prevented from being folded, the ordered clothes attract the eyes of a customer, the customer can conveniently select the clothes in a limited time, in the prior clothes showing stand, the common small showing stand has single function and only can be used for hanging clothes, and the quantity of the hung clothes is small, the size of the functional display rack is large, the occupied space is large, and the display rack is not easy to transport.

Disclosure of Invention

The invention aims to provide a folding clothing display stand which can be folded to reduce the space occupancy rate and is convenient to transport and has the function of displaying clothing in a rotating manner by a dummy model.

The invention is realized by the following technical scheme: the invention relates to a folding clothing display stand, which comprises a base, wherein a motor mounting groove is formed in the center of the base, a motor is fixedly arranged in the motor mounting groove, a plurality of universal wheels are arranged at the lower end of the base, the upper end of the base is rotatably connected with a folding clothes hanger mechanism which comprises a threaded rod mounting seat, the threaded rod mounting seat is rotationally connected with the base, a plurality of threaded rod mounting holes and 3 supporting rod mounting holes are arranged on the threaded rod mounting seat, threaded rods are arranged in the plurality of threaded rod mounting holes, the bottom of the threaded rod is not provided with threads, the unthreaded part at the bottom of the threaded rod is rotationally connected with the threaded rod mounting hole, 3 individual bracing piece mounting hole fixed connection is provided with the bracing piece, threaded rod mount pad one side pivoted is provided with the axis of rotation, the axis of rotation run through in the threaded rod mount pad and with the output fixed connection of motor.

In a further technical scheme, a plurality of non-threaded positions at the lower ends of the threaded rods are fixedly connected and provided with driven gears, the upper ends of the rotating shafts are fixedly connected and provided with driving gears, the driven gears are meshed and connected with the driving gears, the driven gears and the upper sides of the driving gears are provided with limit plates, the limit plates are provided with a plurality of threaded rod penetrating holes and connecting holes, the connecting holes are fixedly connected with supporting rods, the aperture of the threaded rod penetrating hole is larger than that of the threaded rod, the threaded rod penetrates out of the limit plate through the threaded rod penetrating hole, the threaded rod is provided with a lifting block in a threaded connection manner, a structure fixed with a driving rotating shaft is rotated by driving the rotating shaft to rotate through a motor, and then the driving gears fixed on the rotating shafts drive the threaded rods to rotate through gear transmission, so that the plurality of driven gears meshed with the driving gears drive the threaded rods to control the lifting block to lift on the threaded rod, so that the folding clothes rack mechanism can be unfolded or folded.

According to the technical scheme, an end cover is arranged at the upper end of the threaded rod, the rotating shaft penetrates through the end cover and is connected with the end cover in a rotating mode, the lower end of the end cover is fixedly connected with the supporting rod, a lifting block fixing groove is formed in the bottom of the end cover and is opposite to the threaded rod, a plurality of fixing seats are arranged at the upper end of the end cover, two first connecting keys are arranged on two sides of each fixing seat, a plurality of sliding holes are formed in the base, extension rods are slidably arranged in the sliding holes, internal springs are elastically arranged between the extension rods and the sliding holes, a plurality of open abutting grooves are formed in the extension rods and abutted grooves are abutted, and therefore the extension rods enable the extension rods to abut against the abutting grooves under the elastic action of the internal springs, namely, when the driving gear is driven to rotate, the driven gear is driven to be meshed with the driving gear, and then the driven gear is driven gear to rotate When the lifting block rises to the outer surface of the threaded rod and abuts against the bottom of the end cover, the lifting block is buckled in a lifting block fixing groove, and the rotating shaft can drive the folding clothes hanger mechanism to rotate on the base.

According to a further technical scheme, a first connecting handle is arranged on one side of the lifting block, a rotating arm rod is arranged on one side of the lifting block, a first key groove is formed in one end of the rotating arm rod, a second connecting key is arranged on one side of the other end of the rotating arm rod, the first key groove is rotatably connected with the first connecting handle, two third connecting keys are arranged on two sides of the middle of the rotating arm rod, an L-shaped connecting rod is rotatably connected with the third connecting key, the other end of the L-shaped connecting rod is rotatably connected with the first connecting key on the fixed seat, a first clothes hanging rod and a second clothes hanging rod are rotatably connected with the second connecting key, the first clothes hanging rod and the second clothes hanging rod which are rotatably connected with the second connecting key on the adjacent rotating arm rods are vertically abutted, a second connecting handle is arranged at one end of the first clothes hanging rod, a second key groove is formed at one end of the second clothes hanging rod, and every two adjacent rotating arm rods are arranged, the first clothes hanging rod rotationally connected with the right rotating arm rod is rotationally connected with the second clothes hanging rod rotationally connected with the second key groove through the second connecting handle, and the rotating arm rod, the first clothes hanging rod and the second clothes hanging rod can be opened and closed along with the lifting of the lifting block through the arrangement of the lifting block, the fixing seat, the rotating arm rod, the L-shaped connecting rod, the first clothes hanging rod and the second clothes hanging rod in a rotationally matched mode.

A further technical scheme, the axis of rotation upper end is provided with dummy show mechanism, dummy show mechanism include with axis of rotation fixed connection hold the dish, it is provided with 3 spacing fixing bases to hold the dish upper end, spacing fixing base center department is provided with spacing jack, spacing fixing base both sides are provided with spacing module, spacing module upper end is rotated and is connected and is provided with the rotation axis, rotation axis upper end fixed connection is provided with fixed stop, fixed stop upper end center department fixed connection is provided with the knob, the fixed stop size is less than spacing module size.

Further technical scheme, the fixing base activity dress card installs the model base, model base bottom is provided with the mounting hole, mounting hole center department is provided with the inserted bar, the inserted bar diameter equals spacing jack diameter, model base both sides are provided with spacing seat, be provided with the module hole on the spacing seat, module hole size is unanimous with spacing module size, reaches the effect that dummy's model is convenient for install and dismantle on the model base through setting up of spacing fixing base, spacing module and fixed stop.

The invention has the beneficial effects that:

the device has a simple structure, adopts a folding clothes hanger mechanism, drives the rotation of the rotating shaft to drive gears among the gears to rotate, so that the threaded rod rotates, the lifting block in threaded connection with the threaded rod is lifted on the threaded rod, the rotating arm rod in rotating connection with the rotating arm rod rotates on the lifting block under the action of the L-shaped connecting rod in the moving process, so that the folding effect of the folding clothes hanger mechanism is achieved, meanwhile, a dummy display mechanism is arranged above the folding clothes hanger mechanism, the effect of convenient installation and disassembly of the dummy model on the model base is achieved through the arrangement of the limiting fixing seat, the limiting module and the fixing baffle plate, the function of rotary clothes display of the dummy model is achieved through the arrangement of the folding clothes hanger mechanism and the dummy display mechanism, the space occupancy rate is reduced after folding, and the transportation is convenient.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a foldable clothing display stand according to the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of the lifting block structure;

FIG. 4 is a schematic view of the bottom structure of the end cap;

FIG. 5 is a schematic view of a rotating arm lever structure;

FIG. 6 is a schematic view of a clothes rod structure;

FIG. 7 is a schematic view of the structure at A in FIG. 1;

FIG. 8 is a schematic view of the structure at B in FIG. 1;

FIG. 9 is a schematic view of the base structure of the model;

FIG. 10 is a schematic view of a base structure;

FIG. 11 is a schematic view of the upper end of the carrier tray;

FIG. 12 is a schematic view of the base and threaded rod mount mating;

in the figure, a base 101, a threaded rod mounting seat 102, a motor mounting groove 103, a motor 104, a threaded rod mounting hole 105, a support rod mounting hole 106, a threaded rod 107, a support rod 108, a rotating shaft 109, a driven gear 110, a driving gear 111, a first hanging rod 112, a limit plate 115, a threaded rod penetrating hole 116, a connecting hole 117, a lifting block 118, an end cover 119, a lifting block fixing groove 120, a fixing seat 121, a first connecting handle 122, a rotating arm rod 123, a first key slot 124, a second connecting key 125, a third connecting key 126, an L-shaped connecting rod 127, a first connecting key 128, a second hanging rod 129, a second connecting handle 130, a second key slot 131, a bearing plate 132, a limit fixing seat 133, a limit jack 134, a limit module 135, a rotating shaft 136, a fixing baffle 137, a knob 138, a model base 139, a mounting hole 140, an inserting rod 141, a limit seat 142, a module hole 143, a universal wheel 144, a folding hanger mechanism 210, a hanger mechanism, a hanger, A dummy display mechanism 220.

Detailed Description

As shown in fig. 1 to 12, the present invention will be explained in detail, and for convenience of description, the following orientations will be defined as follows: the up-down, left-right, front-back direction is consistent with the up-down, left-right, front-back direction of the projection relation of the figure 1, the folding clothes display stand comprises a base 101, a motor installation groove 103 is arranged at the center of the base 101, a motor 104 is fixedly installed in the motor installation groove 103, a plurality of universal wheels 144 are arranged at the lower end of the base 101, a folding clothes hanger mechanism 210 is rotatably connected at the upper end of the base 101, the folding clothes hanger mechanism 210 comprises a threaded rod installation seat 102, the threaded rod installation seat 102 is rotatably connected with the base 101, a plurality of threaded rod installation holes 105 and 3 supporting rod installation holes 106 are arranged on the threaded rod installation seat 102, a threaded rod 107 is arranged in the plurality of threaded rod installation holes 105, no thread is arranged at the bottom of the threaded rod 107, the thread-free position at the bottom of the threaded rod 107 is rotatably connected with the threaded rod installation holes 105, and the 3 supporting rod installation holes 106 are fixedly connected with supporting rods 108, one side of the threaded rod mounting seat 102 is rotatably provided with a rotating shaft 109, and the rotating shaft 109 penetrates through the threaded rod mounting seat 102 and is fixedly connected with the output end of the motor 104.

Advantageously, a driven gear 110 is fixedly connected to the lower end of the plurality of threaded rods 107 without threads, a driving gear 111 is fixedly connected to the upper end of the rotating shaft 109, the driven gear 110 is engaged with the driving gear 111, a limit plate 115 is arranged on the upper sides of the driven gear 110 and the driving gear 111, a plurality of threaded rod penetrating holes 116 and connecting holes 117 are arranged on the limit plate 115, the connecting holes 117 are fixedly connected with the supporting rod 108, the diameter of the threaded rod penetrating holes 116 is larger than that of the threaded rods 107, the threaded rods 107 penetrate out of the limit plate 115 through the threaded rod penetrating holes 116, a lifting block 118 is arranged on the threaded rods 107 in a threaded connection manner, the motor 104 drives the rotating shaft 109 to rotate a structure fixed with the driving rotating shaft, and then the driving gear 111 fixed on the rotating shaft 109 is driven by the gears so that the plurality of driven gears 110 engaged therewith drive the threaded rods 107 to rotate, thereby controlling the lifting and lowering of the lifting block 118 on the threaded rod 107 to cause the folding hanger mechanism 210 to unfold or fold.

Beneficially, an end cover 119 is arranged at the upper end of the threaded rod 107, the rotating shaft 109 penetrates through the end cover 119 and is rotatably connected with the end cover 119, the lower end of the end cover 119 is fixedly connected with the supporting rod 108, a lifting block fixing groove 120 is arranged at the position, opposite to the threaded rod 107, of the bottom of the end cover 119, a plurality of fixing seats 121 are arranged at the upper end of the end cover 119, two first connecting keys 128 are arranged on two sides of the fixing seats 121, a plurality of sliding holes 204 are arranged in the base 101, an extension rod 202 is arranged in the sliding holes 204 in a sliding manner, an internal spring 203 is elastically arranged between the extension rod 202 and the sliding holes 204, a plurality of open abutting grooves 201 are arranged in the threaded rod mounting seat 102, the extension rod 202 abuts against the abutting grooves 201, so that the extension rod 202 abuts against the abutting grooves 201 under the elastic action of the internal spring 203, that is, after the rotating shaft 109 drives the driving gear 111 to rotate, the driven gear 110 is engaged with the driving gear 111 to drive the driven gear 110 to rotate, after the driven gear 110 cannot be rotated, the driven gear 110 and the driving gear 111 form a relatively fixed integrated structure, that is, the rotating shaft 109 can indirectly drive the threaded rod mounting seat 102 to rotate, when the lifting block 118 rises on the outer surface of the threaded rod 107 to abut against the bottom of the end cover 119, the lifting block 118 is fastened to the lifting block fixing groove 120, at this time, relative rotation between the driven gear 110 and the driving gear 111 cannot occur, and at this time, the rotating shaft 109 can drive the folding hanger mechanism 210 to rotate on the base 101.

Advantageously, a first connecting handle 122 is provided at one side of the lifting block 118, a rotating arm rod 123 is provided at one side of the lifting block 118, a first key slot 124 is provided at one end of the rotating arm rod 123, a second connecting key 125 is provided at one side of the other end of the rotating arm rod 123, the first key slot 124 is rotatably connected with the first connecting handle 122, two third connecting keys 126 are provided at two sides of the middle of the rotating arm rod 123, the third connecting key 126 is rotatably connected with an L-shaped connecting rod 127, the other end of the L-shaped connecting rod 127 is rotatably connected with the first connecting key 128 on the fixed seat 121, the second connecting key 125 is rotatably connected with a first clothes hanging rod 112 and a second clothes hanging rod 129, the first clothes hanging rod 112 and the second clothes hanging rod 129 rotatably connected with the second connecting key 125 on the adjacent rotating arm rods 123 are arranged in an up-down abutting manner, a second connecting handle 130 is provided at one end of the first clothes hanging rod 112, a second key slot 131 is provided at one end of the second clothes hanging rod 129, each adjacent two rotating arm rods 123, the second clothes hanging rod 129 rotatably connected with the first clothes hanging rod 112 and the right rotating arm rod 123 which are rotatably connected with the left rotating arm rod 123 is rotatably connected with the second key slot 131 through the second connecting handle 130, and the rotating arm rod 123, the first clothes hanging rod 112 and the second clothes hanging rod 129 can be opened and closed along with the lifting of the lifting block 118 through the arrangement of the rotating matching among the lifting block 118, the fixed seat 121, the rotating arm rod 123, the L-shaped connecting rod 127, the first clothes hanging rod 112 and the second clothes hanging rod 129.

Beneficially, wherein, a dummy display mechanism 220 is arranged at the upper end of the rotating shaft 109, the dummy display mechanism comprises a bearing disc 132 fixedly connected with the rotating shaft 109, 3 limiting fixing seats 133 are arranged at the upper end of the bearing disc 132, a limiting insertion hole 134 is arranged at the center of each limiting fixing seat 133, limiting modules 135 are arranged at two sides of each limiting fixing seat 133, a rotating shaft 136 is rotatably connected to the upper end of each limiting module 135, a fixing baffle 137 is fixedly connected to the upper end of each rotating shaft 136, a knob 138 is fixedly connected to the center of the upper end of each fixing baffle 137, and the size of each fixing baffle 137 is smaller than that of each limiting module 135.

Beneficially, wherein the fixing base 133 is movably installed with a model base 139 in a clamping manner, the bottom of the model base 139 is provided with a mounting hole 140, the center of the mounting hole 140 is provided with an insertion rod 141, the diameter of the insertion rod 141 is equal to that of the limiting insertion hole 134, the two sides of the model base 139 are provided with limiting seats 142, the limiting seats 142 are provided with module holes 143, the size of each module hole 143 is consistent with that of the limiting module 135, the module holes 143 are installed and clamped with the limiting modules 135, the fixing baffle 137 abuts against the tops of the limiting seats 142, and the effect that the dummy model is convenient to install and detach on the model base 139 is achieved through the arrangement of the limiting fixing base 133, the limiting modules 135 and the fixing baffle 137.

When the dummy model is used, firstly, the garment is worn on the dummy model, the insertion rod 141 on the base 139 of the model is aligned with the limiting insertion hole 134, the module hole 143 on the limiting seat 142 is aligned with the limiting module 135 and inserted into the limiting insertion hole 134, and the knob 138 at the upper end of the fixed baffle 137 is rotated by 90 degrees, so that the fixed baffle 137 fixes the base 139 of the model.

Then the first motor 104 is started, the first motor 104 drives the rotating shaft 109 to rotate, during the rotation of the rotating shaft 109, the dummy display mechanism 220 rotates along with the rotating shaft 109, the clothes upper body effect is displayed in all directions, the customer's eyes are attracted, meanwhile, the driving gear 111 fixedly connected to the rotating shaft 109 drives the driven gear 110 engaged with the driving gear to rotate, namely, the threaded rod 107 fixedly connected to the driven gear 110 is driven to rotate, at this time, the lifting block 118 screwed with the threaded rod 107 moves upwards along the threaded rod 107 under the limitation of the L-shaped link 127, during the ascending process of the lifting block 118, the rotating arm 123 rotates gradually to the horizontal state due to the cooperation and limitation of the rotating connection among the lifting block 118, the fixed seat 121, the rotating arm 123, the L-shaped link 127, the first clothes hanging rod 112 and the second clothes hanging rod 129, the first clothes hanging rod 112 and the second clothes hanging rod 129 are gradually rotated from a closed state to an unfolded state, when the lifting block 118 rises to abut against the bottom of the end cover 119, the lifting block 118 is buckled in the lifting block fixing groove 120 at the moment, the lifting block 118 stops lifting at the moment, the folding clothes hanger mechanism 210 is changed from a folded state to a completely unfolded state, clothes can be hung in the clothes hanger grooves 144 on the first clothes hanging rod 112 and the second clothes hanging rod 129 through the clothes hanger at the moment, after the lifting block 118 is buckled in the lifting block fixing groove 120, a plurality of sliding holes 204 are arranged in the base 101, the sliding holes 204 are internally provided with the extension rods 202 in a sliding manner, the inner springs 203 are elastically arranged between the extension rods 202 and the sliding holes 204, a plurality of open abutting grooves 201 are arranged in the threaded rod mounting seat 102, and the extension rods 202 abut against the abutting grooves 201, therefore, the extension rod 202 is abutted against the abutting groove 201 under the elastic action of the internal spring 203, that is, after the rotating shaft 109 drives the driving gear 111 to rotate, the driven gear 110 is meshed with the driving gear 111 and then drives the driven gear 110 to rotate, after the driven gear 110 cannot be rotated, the driven gear 110 and the driving gear 111 form a relatively fixed integrated structure, that is, the rotating shaft 109 can indirectly drive the threaded rod mounting seat 102 to rotate, and at the moment, the rotating shaft 109 can drive the folding clothes hanger mechanism 210 to rotate on the base 101, so that different styles of clothes can be better displayed, and customers can select the clothes conveniently.

When the clothes display stand needs to be transported, the motor 104 is reversed, so that the lifting block 118 descends to abut against the upper end of the limiting plate 115, the folding clothes hanger mechanism 210 is folded at the moment and returns to the initial state, the dummy model needs to be taken down only by rotating the fixing baffle 137 for fixing the dummy model to the initial state through the universal wheels arranged at the bottom of the base 101.

Claims

1. A folding clothes display stand comprises a base (101), wherein the upper end of the base (101) is rotatably connected with a folding clothes hanger mechanism (210), the folding clothes rack mechanism (210) comprises a threaded rod mounting seat (102), the thread is rotatably connected and mounted on the base (101), a plurality of threaded rod mounting holes (105) and 3 supporting rod mounting holes (106) are arranged on the threaded rod mounting seat (102), threaded rods (107) are arranged in the plurality of threaded rod mounting holes (105), the bottom of the threaded rod (107) is not provided with threads, the unthreaded part at the bottom of the threaded rod (107) is rotationally connected with the threaded rod mounting hole (105), the 3 supporting rod mounting holes (106) are fixedly connected with supporting rods (108), one side of the threaded rod mounting seat (102) is rotatably provided with a rotating shaft (109), the rotating shaft (109) penetrates through the threaded rod mounting seat (102) and is fixedly connected with the output end of the motor (104).

2. A folding clothing display stand as claimed in claim 1, wherein: threaded rod (107) lower extreme unthreaded department fixed connection is provided with driven gear (110), axis of rotation (109) upper end fixed connection is provided with driving gear (111), driven gear (110) with driving gear (111) meshing, driven gear (110) are provided with limiting plate (115) with the upside of driving gear (111), be provided with a plurality of threaded rods on limiting plate (115) and wear hole (116) and connecting hole (117), connecting hole (117) and bracing piece (108) fixed connection.

3. A folding clothing display stand as claimed in claim 1, wherein: threaded connection is provided with lifting block (118) on threaded rod (107), lifting block (118) one side is provided with first connecting handle (122), lifting block (118) one side is provided with rotation armed lever (123), both sides are provided with two third connecting key (126) in the middle of rotation armed lever (123), third connecting key (126) rotate to connect and are provided with L type connecting rod (127), be provided with a plurality of holes of sliding (204) in base (101), hole of sliding (204), gliding extension bar (202) that is provided with in hole of sliding (204), extension bar (202) with elasticity is provided with inside spring (203) between hole of sliding (204), be provided with a plurality of open-ended grooves of supporting (201) in (102), extension bar (202) with the groove of supporting (201) offsets and sets up.

4. A folding clothing display stand as claimed in claim 1, wherein: threaded rod (107) upper end is provided with end cover (119), axis of rotation (109) run through end cover (119) and rotate with end cover (119) and be connected, end cover (119) lower extreme with bracing piece (108) fixed connection, end cover (119) bottom just is provided with elevator fixed slot (120) to threaded rod (107) department, end cover (119) upper end is provided with a plurality of fixing bases (121), fixing base (121) both sides are provided with two first connecting key (128).

5. A folding garment display stand according to claim 3, in which: rotate armed lever (123) one end and be provided with first keyway (124), other end one side is provided with second connecting key (125), first keyway (124) rotate with first connecting handle (122) and are connected, rotate armed lever (123) middle both sides and be provided with two third connecting key (126), third connecting key (126) rotate to be connected and are provided with L type connecting rod (127).

6. A folding clothing display stand according to claim 5 in which: the L-shaped connecting rod (127) is rotatably connected with a first connecting key (128) on the fixed seat (121), the second connecting key (125) is rotatably connected with a first clothes hanging rod (112) and a second clothes hanging rod (129), one end of the first clothes hanging rod (128) is provided with a second connecting handle (130), and one end of the second clothes hanging rod (129) is provided with a second key slot (131).

7. A folding clothing display stand as claimed in claim 1, wherein: axis of rotation (109) upper end is provided with dummy show mechanism (220), dummy show mechanism include with axis of rotation (109) fixed connection bear dish (132), bear dish (132) upper end and be provided with 3 spacing fixing base (133), spacing fixing base (133) center department is provided with spacing jack (134), spacing fixing base (133) both sides are provided with spacing module (135), spacing module (135) upper end is rotated and is connected and is provided with rotation axis (136), rotation axis (136) upper end fixed connection is provided with fixed stop (137), fixed stop (137) upper end center department fixed connection is provided with knob (138).

8. A folding garment display stand according to claim 7, further comprising: the movable clamping device is characterized in that a model base (139) is installed on the fixing base (133) in a movable clamping mode, a mounting hole (140) is formed in the bottom of the model base (139), an inserting rod (141) is arranged at the center of the mounting hole (140), limiting seats (142) are arranged on two sides of the model base (139), and module holes (143) are formed in the limiting seats (142).