CN217992371U - Stretching device - Google Patents

Abstract

The utility model provides a stretching device, the on-line screen storage device comprises a base, positioning mechanism and interior mechanism that props, positioning mechanism includes first locating piece and second locating piece, be equipped with the clearance between first locating piece and the second locating piece, first locating piece and second locating piece are with the fixed bolster, interior mechanism that props includes first slider, first material pole that props, second slider and second material pole that props, first slider is connected first locating piece and at least part is arranged in the clearance, first material pole that props is connected in first slider, second slider slidable ground connection second locating piece and at least part are arranged in the clearance, second material pole that props is connected in second slider. Among the above-mentioned stretching device, through with first slider sliding connection first locating piece, second slider sliding connection second locating piece, can increase the fit-up gap between a arm lock and another arm lock, with the product convenient and fast in the support of packing into, improve machining efficiency.

Description

Stretching device

Technical Field

The application relates to the technical field of processing, especially, relate to a stretching device.

Background

In the product installation, traditional mounting means is artifical directly to pack into the support with the product in, wastes time and energy, and fragile product in the assembling process leads to machining efficiency low.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a stretching device for increasing the assembly gap during the product installation process and improving the processing efficiency.

The embodiment of the application provides a stretching device, which is used for stretching clamping arms on a bracket to increase the assembly clearance between the clamping arms, and comprises a base, a positioning mechanism and an inner supporting mechanism;

the positioning mechanism comprises a first positioning block and a second positioning block, the first positioning block and the second positioning block are arranged on the base at intervals, a gap is formed between the first positioning block and the second positioning block, and the first positioning block and the second positioning block are used for fixing the support and enabling the clamping arm on the support to face the gap;

the inner supporting mechanism comprises a first sliding part, a first supporting rod, a second sliding part and a second supporting rod, the first sliding part is slidably connected with the first positioning block and at least partially positioned in the gap, the first supporting rod is connected with the part of the first sliding part positioned in the gap and extends into the space between two adjacent clamping arms, and when the first sliding part slides relative to the first positioning block, the first supporting rod supports and holds one of the clamping arms to be far away from the other clamping arm along a first direction;

the second sliding part is connected with the second positioning block in a sliding mode and at least partially located in the gap, the second material supporting rod is connected with the portion, located in the gap, of the second sliding part and extends into the space between the two adjacent clamping arms, and when the second sliding part slides relative to the second positioning block, the second material supporting rod supports one of the clamping arms to be far away from the other clamping arm in the opposite direction of the first direction.

The embodiment of the application comprises the following technical effects: when the first sliding part slides relative to the first positioning block or the second sliding part slides relative to the second positioning block, the first material supporting rod on the first sliding part or the second material supporting rod on the second sliding part stretch the clamping arms on the support so as to increase the assembly gap between one clamping arm and the other clamping arm, so that a product can be conveniently and quickly assembled into the support, and the processing efficiency is improved.

In some embodiments of the present application, the first sliding member includes a first sliding portion and a plurality of first abutting portions, the first sliding portion is slidably connected to the first positioning block, the plurality of first abutting portions are connected to the first sliding portion and located in the gap, the first material supporting rod is disposed on the first abutting portions, and a first avoiding groove is formed between two adjacent first abutting portions;

the second sliding part comprises a second sliding part and a plurality of second abutting parts, the second sliding part is connected with the second positioning block in a sliding mode, the second abutting parts are connected with the second sliding part and located in the gap, the second material supporting rod is arranged on the second abutting parts, and a second avoidance groove is formed between every two adjacent second abutting parts;

one or more first supporting parts can be slidably connected in the second avoiding groove in a limiting mode, and one or more second supporting parts can be slidably connected in the first avoiding groove.

The embodiment of the application comprises the following technical effects: the first sliding portion drives the first abutting portion to move in the second avoiding groove in the sliding process, the moving space of the first sliding portion relative to the second sliding portion can be limited, the second sliding portion drives the second abutting portion to move in the first avoiding groove in the sliding process, the moving space of the second sliding portion relative to the first sliding portion can be limited, the first material supporting rod on the first abutting portion and the second material supporting rod on the second abutting portion move on sliding tracks of the first sliding portion and the second sliding portion, the clamping arm is internally supported, and products can be conveniently installed on the support.

In some embodiments of the present application, the stretching device further includes a pull rod mechanism, the pull rod mechanism includes a first fixed block, a first pull rod member, a second fixed block and a second pull rod member, the first fixed block and the second fixed block are respectively disposed at the end portion of the base, one end of the first pull rod is connected to the first slider, the first pull rod member is connected to the first fixed block in a slidable manner in the first direction, one end of the second pull rod is connected to the second slider, and the second pull rod member is connected to the second fixed block in a slidable manner in the first direction.

The embodiment of the application comprises the following technical effects: the first pull rod pulls the first sliding piece by taking the first fixed block as a fulcrum, so that the first sliding piece can slide relative to the first fixed block; the second pull rod takes the second fixed block as a fulcrum to pull the second sliding part, so that the second sliding part can slide relative to the second positioning block.

In some embodiments of the application, the first slider is close to the one end of first pull rod spare is equipped with first card and holds the portion, first pull rod spare includes that first card holds the piece, first stretching portion and first elastic component, the one end that the piece was held to first card with the connection is held to first card, the other end that the piece was held to first card is connected first stretching portion, first stretching portion is kept away from the one end that the piece was held to first card is run through first fixed block and is extended to the outside of first fixed block, the both ends of first elastic component support respectively hold in first card hold the piece with first fixed block.

The embodiment of the application comprises the following technical effects: the first clamping part matched with the first clamping block is arranged on the first sliding part, and the first stretching part can drive the first clamping block to move under the action of external force, so that the first clamping part clamped by the first clamping block drives the first sliding part to slide relative to the first positioning block; the first stretching part is sleeved with a first elastic piece to support the part of the first stretching part extending out of the first fixed block to keep a preset stretching length.

In some embodiments of this application, the first card is held the piece and is included first limiting plate, second limiting plate and locate first limiting plate with head rod between the second limiting plate, first card is held the portion and is included first spacing, second spacing and third spacing, the one end of first spacing with first slider is connected, first spacing is kept away from the one end of first slider is connected the second spacing, the second spacing is kept away from the one end of first spacing is connected the third spacing, form first spacing groove between first spacing, second spacing and the third spacing, the part of first limiting plate is located first spacing inslot, the third spacing is kept away from the one end of second spacing stretches into between first limiting plate and the second limiting plate.

The embodiment of the application comprises the following technical effects: the first clamping part can be selectively matched with or separated from the first clamping block by clamping part of the first limiting plate in the first limiting groove and clamping the third limiting strip between the first limiting plate and the second limiting plate.

In some embodiments of this application, first tensile portion includes first screw rod and first handle, the one end of first screw rod with the second limiting plate is kept away from one side of head rod is connected, the other end of first screw rod runs through first fixed block and connection first handle, the both ends of first elastic component support respectively hold in the second limiting plate with first fixed block.

The embodiment of the application comprises the following technical effects: the first handle pulls the first screw rod, the first screw rod drives the first clamping block and the first clamping part matched with the first clamping block to move, and therefore the first clamping part drives the first sliding part to move relative to the first positioning block.

In some embodiments of this application, the second slider is close to the one end of second pull rod spare is equipped with the second card and holds the portion, the second pull rod spare includes that the second card holds piece, second stretching portion and second elastic component, the second card holds the one end of piece with the connection is held to the second card, the other end that the piece was held to the second card is connected the second stretching portion, the second stretching portion is kept away from the one end that the piece was held to the second card runs through the second fixed block and extends to the outside of second fixed block, the both ends of second elastic component support respectively hold in the second card is held piece and second fixed block.

The embodiment of the application comprises the following technical effects: the second clamping part matched with the second clamping block is arranged on the second sliding part, and the second stretching part can drive the second clamping block to move under the action of external force, so that the second clamping part clamped by the second clamping block drives the second sliding part to slide relative to the second positioning block; the second stretching part is sleeved with a second elastic piece to support the part of the second stretching part extending out of the second fixed block to keep a preset stretching length.

In some embodiments of the present application, the second card is held the piece and is included third limiting plate, fourth limiting plate and locate the third limiting plate with second connecting rod between the fourth limiting plate, the second card is held the portion and is included fourth spacing, fifth spacing and sixth spacing, the one end of fourth spacing with the second slider is connected, the fourth spacing is kept away from the one end of second slider is connected the fifth spacing, the fifth spacing is kept away from the one end of fourth spacing is connected the sixth spacing, form the second spacing groove between fourth spacing, fifth spacing and the sixth spacing, the part of third limiting plate is located the second spacing inslot, the sixth spacing is kept away from the one end of fifth spacing stretches into between third limiting plate and the fourth limiting plate.

The embodiment of the application comprises the following technical effects: the sixth limiting strip is clamped between the third limiting plate and the fourth limiting plate by clamping part of the third limiting plate in the second limiting groove, so that the second clamping part can be selectively matched with or separated from the second clamping block.

In some embodiments of this application, the second tensile portion includes second screw rod and second handle, the one end of second screw rod with the fourth limiting plate is kept away from one side of second connecting rod is connected, the other end of second screw rod runs through the second fixed block and connects the second handle, the both ends of second elastic component support respectively hold in the fourth limiting plate with the second fixed block.

The embodiment of the application comprises the following technical effects: the second handle pulls the second screw rod, the second screw rod drives the second clamping block and the second clamping part matched with the second clamping block to move, and therefore the second clamping part drives the second sliding part to move relative to the second positioning block.

In some embodiments of this application, stretching device still includes supporting seat and driving piece, the driving piece is connected the supporting seat, the base deviates from one side of positioning mechanism with the transmission end of driving piece is connected, the driving piece is used for the drive the base is rotatory.

The embodiment of the application comprises the following technical effects: the base can be driven to change the processing direction under the driving of the driving piece, so that an operator can install products on the support from different directions at the same position, the labor intensity is reduced, and the operation efficiency is improved.

In the stretching device, when the first sliding part slides relative to the first positioning block or the second sliding part slides relative to the second positioning block, the first material supporting rod on the first sliding part or the second material supporting rod on the second sliding part stretches the clamping arms on the support so as to increase the assembly gap between one clamping arm and the other clamping arm, so that a product can be conveniently and quickly loaded into the support, and the processing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a stretching apparatus according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a positioning mechanism and an inner supporting mechanism in a stretching device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a pull rod mechanism in the stretching apparatus according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a support base according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a driving member according to an embodiment of the present application.

Description of the main elements

Stretching apparatus 100

Support 10

Clamp arm 11

Product 20

Base 30

Guide 31

Positioning mechanism 40

First positioning block 41

Positioning bump 411

Second positioning block 42

Gap 43

Internal stay mechanism 50

First slider 51

First sliding part 511

First abutting part 512

First avoidance groove 513

First clamping part 514

First limit bar 5141

Second limit bar 5142

Third limit strip 5143

First limit groove 5144

The first stay bar 52

Second slider 53

Second sliding portion 531

Second butting part 532

Second avoidance groove 533

Second catch 534

Fourth limit strip 5341

Fifth position limiting strip 5342

Sixth position limiting strip 5343

Second limit groove 5344

Second support rod 54

Pull rod mechanism 60

First fixing block 61

First pull rod 62

First clamping block 621

First limit plate 6211

Second stopper plate 6212

First connecting rod 6213

First stretching part 622

First screw 6221

First grip 6222

First elastic member 623

Second fixing block 63

Second pull rod 64

Second clamping block 641

Third limit plate 6411

Fourth restriction plate 6412

Second connecting rod 6413

Second stretching part 642

Second screw 6421

Second grip 6422

Second elastic member 643

First limiting member 65

Second position-limiting element 66

Support seat 70

Driving member 80

Rotary cylinder 81

Connecting shaft 82

First direction X

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," and the like are used for descriptive purposes only and are not intended to limit the present application.

It will be appreciated that when describing the parallel/perpendicular arrangement of two components, the angle between the two components is allowed to have a tolerance of + -10% with respect to standard parallel/perpendicular.

The embodiment of the application provides a stretching device for to the arm lock on the support stretch in order to increase the fit-up gap between the arm lock, stretching device includes the base, stretching device still includes positioning mechanism and internal stay mechanism.

The positioning mechanism comprises a first positioning block and a second positioning block, and the first positioning block and the second positioning block are arranged on the base at intervals. A gap is formed between the first positioning block and the second positioning block, and the first positioning block and the second positioning block are used for fixing the bracket and enabling the clamping arms on the bracket to face the gap.

The inner supporting mechanism comprises a first sliding part, a first material supporting rod, a second sliding part and a second material supporting rod, wherein the first sliding part is connected with the first positioning block in a sliding mode and at least partially located in the gap. The first material supporting rod is connected to the part, located in the gap, of the first sliding part and extends into the space between the two adjacent clamping arms, and when the first sliding part slides relative to the first positioning block, the first material supporting rod supports one clamping arm to be far away from the other clamping arm in the first direction.

The second sliding part is connected with the second positioning block in a sliding mode and at least partially located in the gap, and the second material supporting rod is connected to the portion, located in the gap, of the second sliding part and extends into the space between the two adjacent clamping arms. When the second sliding part slides relative to the second positioning block, the second material supporting rod supports one of the clamping arms to be far away from the other clamping arm along the opposite direction of the first direction.

Among the above-mentioned stretching device, when first slider slided or the second slider slided relative the second locating piece relative first locating piece, the arm lock on the support was stretched to first vaulting pole on the first slider or the second vaulting pole on the second slider to increase the fit-up gap between one arm lock and another arm lock, can be with the product convenient and fast pack into the support in, improve machining efficiency.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2 together, a stretching device 100 for stretching a clamping arm 11 on a support 10 to increase an assembly gap 43 between the clamping arms 11 is provided, the stretching device 100 includes a base 30, and the stretching device 100 further includes a positioning mechanism 40 and an inner supporting mechanism 50.

The positioning mechanism 40 includes a first positioning block 41 and a second positioning block 42, and the first positioning block 41 and the second positioning block 42 are disposed on the base 30 at an interval. A gap 43 is arranged between the first positioning block 41 and the second positioning block 42, and the first positioning block 41 and the second positioning block 42 are used for fixing the bracket 10 and enabling the clamping arm 11 on the bracket 10 to face the gap 43.

The inner supporting mechanism 50 includes a first sliding member 51, a first material supporting rod 52, a second sliding member 53 and a second material supporting rod 54, wherein the first sliding member 51 is slidably connected to the first positioning block 41 and at least partially located in the gap 43. The first material supporting rod 52 is connected to a portion of the first sliding member 51 located in the gap 43 and extends into between two adjacent clamping arms 11, and when the first sliding member 51 slides relative to the first positioning block 41, the first material supporting rod 52 supports one of the clamping arms 11 to move away from the other clamping arm 11 along the first direction X.

The second sliding part 53 is slidably connected to the second positioning block 42 and at least partially located in the gap 43, and the second material supporting rod 54 is connected to a portion of the second sliding part 53 located in the gap 43 and extending into between two adjacent clamping arms 11. When the second sliding member 53 slides relative to the second positioning block 42, the second material supporting rod 54 supports one of the clamping arms 11 to move away from the other clamping arm 11 along the opposite direction of the first direction X.

In the stretching device 100, when the first sliding member 51 slides relative to the first positioning block 41 or the second sliding member 53 slides relative to the second positioning block 42, the first material supporting rod 52 on the first sliding member 51 or the second material supporting rod 54 on the second sliding member 53 stretches the clamping arm 11 on the bracket 10, so as to increase the assembly gap 43 between one clamping arm 11 and the other clamping arm 11, so that the product 20 can be conveniently and quickly installed in the bracket 10, and the processing efficiency is improved.

Referring to fig. 2 and fig. 3, in some embodiments, the first sliding member 51 includes a first sliding portion 511 and a plurality of first abutting portions 512, and the first sliding portion 511 is slidably connected to the first positioning block 41. The plurality of first abutting portions 512 are connected to the first sliding portion 511 and located in the gap 43, the first material supporting rod 52 is disposed on the first abutting portions 512, and a first avoiding groove 513 is formed between two adjacent first abutting portions 512.

The second sliding member 53 includes a second sliding portion 531 and a plurality of second abutting portions 532, and the second sliding portion 531 is slidably connected to the second positioning block 42. The plurality of second abutting portions 532 are connected to the second sliding portion 531 and located in the gap 43, the second material supporting rod 54 is disposed on the second abutting portions 532, and a second avoiding groove 533 is formed between two adjacent second abutting portions 532.

The one or more first supporting portions 512 are slidably connected in the second avoiding groove 533 in a limited manner, and the one or more second supporting portions 532 are slidably connected in the first avoiding groove 513.

The first sliding portion 511 drives the first abutting portion 512 to move in the second avoiding groove 533 during the sliding process, so that the moving space of the first sliding portion 511 relative to the second sliding portion 531 can be limited. The second sliding portion 531 drives the second abutting portion 532 to move in the first avoiding groove 513 in the sliding process, so that the moving space of the second sliding portion 531 relative to the first sliding portion 511 can be limited, and the first material supporting rod 52 on the first abutting portion 512 and the second material supporting rod 54 on the second abutting portion 532 move on the sliding tracks of the first sliding portion 511 and the second sliding portion 531, so as to support the clamp arm 11 internally, and facilitate the installation of the product 20 on the bracket 10.

Referring to fig. 1 and 2 again, in some embodiments, the stretching device 100 further includes a pulling rod mechanism 60, and the pulling rod mechanism 60 includes a first fixed block 61, a first pulling rod 62, a second fixed block 63, and a second pulling rod 64. The first fixing block 61 and the second fixing block 63 are respectively disposed at the end of the base 30, one end of the first pull rod is connected to the first sliding member 51, and the first pull rod 62 is slidably connected to the first fixing block 61 along the first direction X. One end of the second pull rod is connected to the second sliding member 53, and the second pull rod 64 is slidably connected to the second fixed block 63 along the first direction X.

The first pull rod pulls the first sliding part 51 by taking the first fixed block 61 as a fulcrum, so that the first sliding part 51 can slide relative to the first fixed block 41; the second pull rod pulls the second sliding member 53 with the second fixed block 63 as a fulcrum, so that the second sliding member 53 can slide relative to the second positioning block 42.

Referring to fig. 2 and fig. 3 again, in some embodiments, an end of the first sliding member 51 close to the first pull rod 62 is provided with a first retaining portion 514. The first pull rod member 62 includes a first holding block 621, a first stretching portion 622, and a first elastic member 623, wherein one end of the first holding block 621 is connected to the first holding portion 514 in a holding manner, and the other end of the first holding block 621 is connected to the first stretching portion 622. One end of the first stretching part 622, which is far away from the first holding block 621, penetrates through the first fixing block 61 and extends to the outside of the first fixing block 61, and two ends of the first elastic member 623 respectively abut against the first holding block 621 and the first fixing block 61.

By providing the first clamping portion 514 adapted to the first clamping block 621 on the first sliding member 51, the first stretching portion 622 can drive the first clamping block 621 to move under the action of an external force, so that the first clamping portion 514 clamped by the first clamping block 621 drives the first sliding member 51 to slide relative to the first positioning block 41. The first elastic member 623 is sleeved on the first stretching part 622 to support a portion of the first stretching part 622 extending out of the first fixing block 61 to maintain a preset stretching length.

Referring to fig. 2 and 3, in some embodiments, the first catching block 621 includes a first stopper plate 6211, a second stopper plate 6212, and a first connecting rod 6213 disposed between the first stopper plate 6211 and the second stopper plate 6212. The first catch part 514 comprises a first limit stop 5141, a second limit stop 5142 and a third limit stop 5143, wherein one end of the first limit stop 5141 is connected with the first slider 51, one end of the first limit stop 5141 far away from the first slider 51 is connected with the second limit stop 5142, and one end of the second limit stop 5142 far away from the first limit stop 5141 is connected with the third limit stop 5143. A first limiting groove 5144 is formed among the first limiting strip 5141, the second limiting strip 5142 and the third limiting strip 5143, the part of the first limiting plate 6211 is positioned in the first limiting groove 5144, and one end of the third limiting strip 5143, which is far away from the second limiting strip 5142, extends into the space between the first limiting plate 6211 and the second limiting plate 6212.

By clamping part of the first stopper plate 6211 in the first stopper groove 5144, the third stopper bar 5143 is clamped between the first stopper plate 6211 and the second stopper plate 6212, so that the first clamping portion 514 can selectively engage with or disengage from the first clamping block 621.

With continued reference to fig. 2 and 3, in some embodiments, the first stretching portion 622 includes a first screw 6221 and a first grip 6222. One end of the first screw 6221 is connected to one side of the second limiting plate 6212 away from the first connecting rod 6213, the other end of the first screw 6221 penetrates through the first fixing block 61 and is connected to the first handle 6222, and two ends of the first elastic member 623 respectively abut against the second limiting plate 6212 and the first fixing block 61.

The first handle 6222 pulls the first screw rod 6221, the first screw rod 6221 drives the first clamping block 621 and the first clamping portion 514 matched with the first clamping block 621 to move, so that the first clamping portion 514 drives the first sliding portion 511 to move relative to the first positioning block 41. Meanwhile, the first elastic element 623 is arranged between the second limit plate 6212 and the first fixed block 61, so that the stability of the first handle 6222 when pulling the first screw 6221 is improved, and the occurrence rate of the situation that the first screw 6221 is pulled out from the first spring can be reduced. Alternatively, the first elastic member 623 may be a spring.

Referring to fig. 2 and fig. 3, in some embodiments, a first limiting member 65 is disposed on a side of the first fixing block 61 facing the first sliding member 51, so that the first sliding member 51 abuts against the first limiting member 65 when being driven by the first pulling rod 62. By providing the first limiting member 65, when the first sliding member 51 slides towards the first fixing block 61 relative to the first positioning block 41, the first limiting member 65 can limit the sliding distance of the first sliding member 51, so as to reduce the risk that the bracket 10 is excessively inwardly supported.

Referring to fig. 2 and fig. 3, in some embodiments, a second retaining portion 534 is disposed at an end of the second sliding member 53 close to the second pulling rod 64. The second pull rod 64 includes a second holding block 641, a second stretching portion 642 and a second elastic member 643, wherein one end of the second holding block 641 is connected to the second holding portion 534 in a holding manner, and the other end of the second holding block 641 is connected to the second stretching portion 642. One end of the second stretching portion 642, which is far away from the second holding block 641, penetrates through the second fixing block 63 and extends to the outer side of the second fixing block 63, and two ends of the second elastic element 643 respectively abut against the second holding block 641 and the second fixing block 63.

By providing the second locking portion 534 adapted to the second locking block 641 on the second sliding member 53, the second stretching portion 642 can drive the second locking block 641 to move under the action of an external force, so that the second locking portion 534 locked by the second locking block 641 drives the second sliding member 53 to slide relative to the second positioning block 42. The second stretching portion 642 is sleeved with a second elastic element 643 to support a portion of the second stretching portion 642 extending out of the second fixed block 63 to keep a predetermined stretching length.

With continued reference to fig. 2 and fig. 3, in some embodiments, the second retaining block 641 includes a third limiting plate 6411, a fourth limiting plate 6412, and a second connecting rod 6413 disposed between the third limiting plate 6411 and the fourth limiting plate 6412. The second holding portion 534 includes a fourth limiting bar 5341, a fifth limiting bar 5342 and a sixth limiting bar 5343, one end of the fourth limiting bar 5341 is connected to the second sliding member 53, one end of the fourth limiting bar 5341 far away from the second sliding member 53 is connected to the fifth limiting bar 5342, and one end of the fifth limiting bar 5342 far away from the fourth limiting bar 5341 is connected to the sixth limiting bar 5343. A second limiting groove 5344 is formed among the fourth limiting strip 5341, the fifth limiting strip 5342 and the sixth limiting strip 5343, part of the third limiting plate 6411 is positioned in the second limiting groove 5344, and one end of the sixth limiting strip 5343, which is far away from the fifth limiting strip 5342, extends into a space between the third limiting plate 6411 and the fourth limiting plate 6412.

By clamping part of the third limit plate 6411 in the second limit groove 5344, the sixth limit strip 5343 is clamped between the third limit plate 6411 and the fourth limit plate 6412, so that the second clamping portion 534 can be selectively engaged with or disengaged from the second clamping block 641.

With continued reference to fig. 2 and 3, in some embodiments, second stretching portion 642 includes a second screw 6421 and a second grip 6422. One end of the second screw 6421 is connected to one side of the fourth limiting plate 6412 away from the second connecting rod 6413, the other end of the second screw 6421 penetrates through the second fixing block 63 and is connected to the second handle 6422, and two ends of the second elastic element 643 respectively abut against the fourth limiting plate 6412 and the second fixing block 63.

The second screw 6421 is pulled by the second handle 6422, the second screw 6421 drives the second catching block 641 and the second catching portion 534 matched with the second catching block 641 to move, so that the second catching portion 534 drives the second sliding portion 531 to move relative to the second positioning block 42. Meanwhile, the second elastic element 643 is arranged between the second limit plate 6212 and the second fixing block 63, so that the stability of the second handle 6422 pulling the second screw 6421 is improved, and the occurrence rate of the situation that the second screw 6421 is pulled out from the second spring can also be reduced. Alternatively, the second elastic member 643 may be a spring.

Referring to fig. 2 and fig. 3, in some embodiments, a second position-limiting member 66 is disposed on a side of the second fixed block 63 facing the second sliding member 53, so that the second sliding member 53 is supported against the second position-limiting member 66 when being driven by the second pull rod 64. By providing the second limiting member 66, when the second sliding member 53 slides towards the second fixing block 63 relative to the second positioning block 42, the second limiting member 66 can limit the sliding distance of the second sliding member 53, so as to reduce the risk that the bracket 10 is excessively inwardly supported.

Referring to fig. 1 and fig. 2 again, in some embodiments, the two end portions of the base 30 close to the first positioning block 41 are respectively provided with a guiding element 31, and the guiding elements 31 are located on the sliding paths of the first sliding element 51 and the second sliding element 53, so that the first sliding element 51 slides along the guiding element 31 relative to the first positioning block 41, and the second sliding element 53 slides along the guiding element 31 relative to the second positioning block 42. By providing the guide 31 on the sliding paths of the first slider 51 and the second slider 53, the risk of deviation from the sliding paths during sliding of the first slider 51 and the second slider 53 can be reduced.

Referring to fig. 1 and fig. 2, in some embodiments, a plurality of positioning bumps 411 are disposed at intervals on a side of the first positioning block 41 away from the base 30. When the support 10 is set on the first slide 51, the positioning projection 411 partially protrudes into the support 10 to define the position of the support 10 on the first positioning block 41.

Referring to fig. 1 and fig. 4, in some embodiments, the stretching device 100 further includes a supporting seat 70 and a driving member 80, the driving member 80 is connected to the supporting seat 70, a side of the base 30 away from the positioning mechanism 40 is connected to a driving end of the driving member 80, and the driving member 80 is used for driving the base 30 to rotate.

Referring to fig. 4 and 5, in the present embodiment, the driving member 80 includes a rotating cylinder 81 and a connecting shaft 82. One end of the connecting shaft 82 is connected with the transmission end of the rotary cylinder 81, and the other end of the connecting shaft 82 is fixedly connected with the base 30. The base 30 is driven by the rotary cylinder 81 to change the processing direction, so that an operator can mount the products 20 on the bracket 10 from different directions at the same position, the labor intensity is reduced, and the working efficiency is improved.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and variations of the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims (10)

1. A stretching device for stretching a clamping arm on a support to increase an assembly gap between the clamping arms, the stretching device comprising a base, characterized in that: the stretching device also comprises a positioning mechanism and an inner supporting mechanism;

the positioning mechanism comprises a first positioning block and a second positioning block, the first positioning block and the second positioning block are arranged on the base at intervals, a gap is formed between the first positioning block and the second positioning block, and the first positioning block and the second positioning block are used for fixing the support and enabling the clamping arm on the support to face the gap;

the inner supporting mechanism comprises a first sliding part, a first supporting rod, a second sliding part and a second supporting rod, the first sliding part is slidably connected with the first positioning block and at least partially positioned in the gap, the first supporting rod is connected with the part of the first sliding part positioned in the gap and extends into the space between two adjacent clamping arms, and when the first sliding part slides relative to the first positioning block, the first supporting rod supports and holds one of the clamping arms to be far away from the other clamping arm along a first direction;

the second sliding part is slidably connected with the second positioning block and at least partially located in the gap, the second material supporting rod is connected with the portion, located in the gap, of the second sliding part and extends into the space between two adjacent clamping arms, and when the second sliding part slides relative to the second positioning block, the second material supporting rod supports and holds one clamping arm and is far away from the other clamping arm along the opposite direction of the first direction.

2. Stretching apparatus as claimed in claim 1, wherein: the first sliding part comprises a first sliding part and a plurality of first abutting parts, the first sliding part is connected with the first positioning block in a sliding mode, the plurality of first abutting parts are connected with the first sliding part and located in the gap, the first material supporting rod is arranged on the first abutting parts, and a first avoidance groove is formed between every two adjacent first abutting parts;

the second sliding part comprises a second sliding part and a plurality of second abutting parts, the second sliding part is connected with the second positioning block in a sliding mode, the second abutting parts are connected with the second sliding part and located in the gap, the second material supporting rod is arranged on the second abutting parts, and a second avoiding groove is formed between every two adjacent second abutting parts;

one or more first butting parts can be slidably and limitedly connected in the second avoiding groove, and one or more second butting parts can be slidably connected in the first avoiding groove.

3. Stretching apparatus as claimed in claim 1, wherein: the stretching device further comprises a pull rod mechanism, the pull rod mechanism comprises a first fixed block, a first pull rod piece, a second fixed block and a second pull rod piece, the first fixed block and the second fixed block are respectively arranged at the end part of the base, one end of the first pull rod is connected with the first sliding piece, the first pull rod piece is connected with the first fixed block in a sliding mode in the first direction, one end of the second pull rod is connected with the second sliding piece, and the second pull rod piece is connected with the second fixed block in a sliding mode in the first direction.

4. Stretching apparatus as claimed in claim 3, wherein: the first slider is close to the one end of first pull rod spare is equipped with first card and holds the portion, first pull rod spare includes first card and holds the piece, first stretching portion and first elastic component, the one end that the piece was held to first card with first card holds the portion card and is held and be connected, the other end that the piece was held to first card is connected first stretching portion, the one end that first stretching portion kept away from the piece is held to first card runs through first fixed block and extends to the outside of first fixed block, the both ends of first elastic component support respectively hold in the piece is held to first card and first fixed block.

5. Stretching apparatus as claimed in claim 4, wherein: the first clamping block comprises a first limiting plate, a second limiting plate and a first connecting rod arranged between the first limiting plate and the second limiting plate, the first clamping portion comprises a first limiting strip, a second limiting strip and a third limiting strip, one end of the first limiting strip is connected with the first sliding piece, the first limiting strip is far away from one end of the first sliding piece and connected with the second limiting strip, the second limiting strip is far away from one end of the first limiting strip and connected with the third limiting strip, a first limiting groove is formed among the first limiting strip, the second limiting strip and the third limiting strip, the first limiting plate is partially located in the first limiting groove, and the third limiting strip is far away from one end of the second limiting strip and stretched into the space between the first limiting plate and the second limiting plate.

6. Stretching apparatus as claimed in claim 5, wherein: first tensile portion includes first screw rod and first handle, the one end of first screw rod with the second limiting plate is kept away from one side of head rod is connected, the other end of first screw rod runs through first fixed block and connection first handle, the both ends of first elastic component support respectively hold in the second limiting plate with first fixed block.

7. Stretching apparatus as claimed in claim 3, wherein: the end, close to the second pull rod piece, of the second sliding piece is provided with a second clamping portion, the second pull rod piece comprises a second clamping block, a second stretching portion and a second elastic piece, one end of the second clamping block is connected with the second clamping portion in a clamping mode, the other end of the second clamping block is connected with the second stretching portion, one end, far away from the second clamping block, of the second stretching portion penetrates through the second fixing block and extends to the outer side of the second fixing block, and two ends of the second elastic piece are respectively abutted to the second clamping block and the second fixing block.

8. Stretching apparatus as claimed in claim 7, wherein: the second clamping block comprises a third limiting plate, a fourth limiting plate and a second connecting rod arranged between the third limiting plate and the fourth limiting plate, the second clamping portion comprises a fourth limiting strip, a fifth limiting strip and a sixth limiting strip, one end of the fourth limiting strip is connected with the second sliding piece, one end of the fourth limiting strip is far away from the second sliding piece is connected with the fifth limiting strip, one end of the fifth limiting strip is far away from the fourth limiting strip is connected with the sixth limiting strip, a second limiting groove is formed between the fourth limiting strip, the fifth limiting strip and the sixth limiting strip, the third limiting plate is partially located in the second limiting groove, and one end of the sixth limiting strip is far away from the fifth limiting strip extends into the space between the third limiting plate and the fourth limiting plate.

9. Stretching apparatus as claimed in claim 8, wherein: the second stretching portion comprises a second screw and a second handle, one end of the second screw is far away from the fourth limiting plate, one side of the second connecting rod is connected, the other end of the second screw penetrates through the second fixing block and is connected with the second handle, and two ends of the second elastic piece are respectively supported and held on the fourth limiting plate and the second fixing block.

10. Stretching apparatus as claimed in claim 1, wherein: the stretching device further comprises a supporting seat and a driving piece, the driving piece is connected with the supporting seat, one side, deviating from the positioning mechanism, of the base is connected with a transmission end of the driving piece, and the driving piece is used for driving the base to rotate.

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