CN213054678U

CN213054678U - Extensible, retractable and stretchable multi-purpose steel structure

Info

Publication number: CN213054678U
Application number: CN202021682975.4U
Authority: CN
Inventors: 陶莉; 张婷; 江雨辰; 刘颖; 翟文清; 高网芹
Original assignee: Wuxi Taihu University
Current assignee: Wuxi Taihu University
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-27
Anticipated expiration: 2030-08-13

Abstract

The utility model provides a multipurpose steel structure which can be unfolded, retracted and stretched, comprising a base, a driving frame, a stretching table, a transmission part, a left push plate, a right push plate, a telescopic rod, a motor and a worm; two sides of the upper surface of the base are connected with outer side frames through welding, and a middle plate is fixedly connected above the outer side frames; the driving frame is connected to the upper surface of the base in a sliding mode; the fixed rack of the outer side frame is meshed and connected with the outer side of the clamping wheel of the driving frame; the stretching frame is movably connected to the upper surface of the base, and a movable rack on the outer side of the stretching frame is meshed and connected to the inner side surface of the clamping wheel of the driving frame; the stretching table is connected to the outer side of the upper surface of the stretching frame through welding; the shaft of the transmission part is rotatably connected to the upper surface of the base through a bearing; it can be seen that the telescopic structure is simple and convenient to control, has a self-locking characteristic, is high in pressure bearing capacity, can be applied to pushing materials or working tables in production of various products, and is greatly improved in safety.

Description

Extensible, retractable and stretchable multi-purpose steel structure

Technical Field

The utility model belongs to mechanical extending structure field, more specifically say, in particular to stretchable multi-purpose steel construction can expand and withdraw.

Background

Collapsible mechanism is comparatively common in daily life or production, for example automatic door and window, telescopic workstation etc.. In common mechanical transmission system, some positions or mechanical structures need to utilize a transmission component to carry out mechanical transmission or be applied to pushing material feeding mechanism, in order to realize further mechanical action, wherein, the most common mechanical equipment is stretched out and drawn back and is moved and need to utilize a motor to drive a gear rack or use the cylinder, the hydraulic cylinder combined action of prior art, drive equipment and expand, be used for changing the original structure of equipment, when the workstation in mechanical production needs to expand, use hydraulic cylinder or gear rack to drive the workstation usually, realize the expansion of workstation, the adaptation production needs.

The existing chinese utility model patent, for example, with patent number CN201921537511.1, discloses an expandable multifunctional display case, which is basically described as: the device comprises a workbench, a clamping groove, a first supporting plate, a second side supporting plate, a shell, a storage battery, a switch, a protective shell, a toughened glass plate, an LED lamp, a deployable placing plate frame structure, an auxiliary supporting fixed rod frame structure and an auxiliary supporting plate frame structure, wherein the clamping groove is respectively formed in the left side and the right side of the upper surface of the workbench; the first supporting plates are respectively installed on the front side and the rear side of the lower surface of the workbench through bolts; the second side supporting plates are respectively installed on the left side and the right side of the lower surface of the workbench through bolts; the shell bolt is arranged at the left upper part of the front surface of the first supporting plate; the storage battery is movably embedded in the lower side of the shell; the switch is embedded in the left upper part of the front surface of the shell.

Based on the above-mentioned patent description, can see that similar current expansion bracket mostly drives through driving pieces such as manual control or use motor, cylinder, lacks the auto-lock nature, and the location is unreliable, and control is inconvenient, and it is unstable to take place to fix a position easily, causes inconveniently to using this type of telescopic machanism to produce or daily use.

In view of the above, the present invention provides a multi-purpose steel structure that can be expanded, retracted and stretched to achieve a more practical purpose.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can expand and withdraw tensile multi-purpose steel construction to solve similar current expansion bracket and mostly drive through driving pieces such as manual control or use motor, cylinder, lack auto-lock nature, fix a position unreliable, and control is inconvenient, take place easily to fix a position unstably, produce or daily use to using this type of telescopic machanism and cause inconvenient problem.

The utility model relates to a can expand purpose and efficiency of retrieving tensile multi-purpose steel construction is reached by following specific technological means:

a multipurpose steel structure capable of being unfolded, retracted and stretched comprises a base, a driving frame, a stretching table, a transmission part, a left push plate, a right push plate, a telescopic rod, a motor and a worm; two sides of the upper surface of the base are connected with outer side frames through welding, and a middle plate is fixedly connected above the outer side frames; the driving frame is connected to the upper surface of the base in a sliding mode; the fixed rack of the outer side frame is meshed and connected with the outer side of the clamping wheel of the driving frame; the stretching frame is movably connected to the upper surface of the base, and a movable rack on the outer side of the stretching frame is meshed and connected to the inner side surface of the clamping wheel of the driving frame; the stretching table is connected to the outer side of the upper surface of the stretching frame through welding; the shaft of the transmission part is rotatably connected to the upper surface of the base through a bearing; two ends of the telescopic rod are fixedly connected to push plates on the inner sides of the driving frames at two ends; the left push plate is fixedly connected to the inner side surface of the active frame through a bolt; the right push plate is fixedly connected to the inner side surface of the driving frame on the other side through a bolt; a left push plate and a right push plate are connected above the transmission part in a meshing manner; the motor is fixedly connected to the lower surface of the base through a bolt, and the output end of the motor is fixedly connected with the gearbox; the worm is fixedly connected with an output shaft of the gearbox, and the worm is meshed and connected with the lower part of the transmission part.

Furthermore, two rows of wheel grooves are formed in the upper surface of the base, and the inside of the wheel grooves is rotatably connected with a roller through a bearing.

Furthermore, a square groove is formed in the inner side surface of the outer side frame, and a fixed rack of a rack structure is arranged in the groove of the outer side frame.

Furthermore, the driving frame is two plates with H-shaped sections, a rectangular gear groove is formed in the middle of the driving frame, two ends of the pushing plate are fixedly connected with the inner ends of the two driving frames, and a clamping wheel similar to the gear structure is rotatably connected to the inner portion of the gear groove through a bearing.

Furthermore, rectangular grooves are formed in the outer surfaces of the side frames on the two sides of the plate body of the stretching frame, and the movable racks are arranged in the grooves of the side frames of the stretching frame.

Further, transmission portion is including last drive gear, lower drive gear and worm wheel down, go up drive gear and two gears that are coaxial fixed connection with lower drive gear, and go up drive gear and the lower extreme fixedly connected with of the axle of lower drive gear worm wheel down.

Furthermore, the left push plate is a folded plate with an L-shaped structure, a left transmission gear is arranged on the surface of the inner side of the left push plate, and a first rib plate is fixedly connected to the inner side of a folded angle of the left push plate.

Furthermore, the right push plate is a folded plate with an L-shaped structure, the surface of the inner side of the right push plate close to the right push plate is provided with a right transmission tooth, and the inner side of a folded angle of the right push plate is fixedly connected with a second ribbed plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses structural improvement has been carried out on current extending structure, mainly embodied: the motor and the gearbox of the structure control the lower worm wheel to act through the worm to form worm wheel and worm transmission, and form uniform rotation of the transmission part, so that the worm drives the worm wheel to act when serving as a driving part by utilizing the self-locking characteristic of the worm wheel and the worm, and can drive the worm wheel to act, otherwise, the worm wheel cannot drive the worm to act, and the telescopic structure has the characteristics of stable power and convenience in control.

Through the cooperation of transmission portion with left push pedal and right push pedal, two gears of transmission portion top mesh simultaneously with left push pedal and right push pedal simultaneously, form the rack and pinion transmission, can make left push pedal and right push pedal expand or shrink to the centre to both sides simultaneously, promote the push pedal action of both sides, make the initiative frame realize moving outward, when the initiative frame moves outward, the transmission takes place with the inboard fixed rack of outside frame with the clamp wheel on initiative frame both sides limit, fixed rack is fixed motionless, the clamp wheel removes and rotates, it is connected with tensile frame still to mesh in the inboard of clamping the wheel.

Through the cooperation of the stretching frame of this structure and initiative frame, the both sides limit of stretching frame contacts with the double-layered wheel of both sides, takes place rack and pinion transmission with movable rack, presss from both sides the wheel rotation and with removing, drives the stretching frame and moves to the outside, then the displacement of stretching frame is the twice of left push pedal or right push pedal motion range, and the stretching frame at both ends extends to the outside simultaneously, expandes extending structure, on the contrary, the steering of reverse control worm can contract extending structure. It can be seen that the telescopic structure is simple and convenient to control, has a self-locking characteristic, is high in bearing capacity, can be applied to pushing materials or working tables in production of various products, and has a reliable self-locking characteristic, so that the safety is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view after the retraction of the present invention.

Fig. 3 is a schematic bottom structure diagram of the present invention.

Fig. 4 is a schematic view of the internal structure of the unfolding operation of the present invention.

Fig. 5 is a schematic view of the base structure of the present invention.

Fig. 6 is a schematic structural view of the stretching frame of the present invention.

Fig. 7 is a schematic view of the structure of the transmission part of the present invention.

Fig. 8 is a schematic view of the structure of the active frame of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base; 101. a wheel groove; 102. a drum; 2. a neutral plate; 3. an outer side frame; 301. fixing a rack; 4. a driving frame; 401. pushing the plate; 402. a gear groove; 403. a pinch roller; 5. a stretching frame; 501. a movable rack; 6. a stretching table; 7. a transmission section; 701. a transmission gear is installed; 702. a lower transmission gear; 703. a lower worm gear; 8. a left push plate; 801. a left drive gear; 802. a first rib plate; 9. a right push plate; 901. a right drive gear; 902. a second rib plate; 10. a telescopic rod; 11. a motor; 12. a gearbox; 13. a worm.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the utility model provides a multipurpose steel structure which can be unfolded, retracted and stretched, comprising a base 1, a driving frame 4, a stretching frame 5, a stretching table 6, a transmission part 7, a left push plate 8, a right push plate 9, a telescopic rod 10, a motor 11 and a worm 13; two sides of the upper surface of the base 1 are connected with outer side frames 3 through welding, and a middle plate 2 is fixedly connected above the outer side frames 3; the active frame 4 is connected on the upper surface of the base 1 in a sliding way; the fixed rack 301 of the outer side frame 3 is meshed and connected with the outer side of the clamping wheel 403 of the driving frame 4; the stretching frame 5 is movably connected to the upper surface of the base 1, the movable rack 501 on the outer side of the stretching frame 5 is meshed and connected to the inner side surface of the clamping wheel 403 of the active frame 4, the upper surface of the base 1 is provided with two rows of wheel grooves 101, and the interior of the wheel grooves 101 is rotatably connected with the roller 102 through a bearing, the base 1 with the structure is shown in fig. 5, the roller 102 is arranged on the upper surface of the base 1, so that the friction force of the stretching frame 5 during reciprocating motion can be reduced, the noise and the resistance are reduced, the stretching table 6 can be fixedly connected above the base 1, and the extension function of the workbench is realized; the stretching table 6 is connected to the outer side of the upper surface of the stretching frame 5 through welding; the shaft of the transmission part 7 is rotatably connected to the upper surface of the base 1 through a bearing; two ends of the telescopic rod 10 are fixedly connected to the push plates 401 at the inner sides of the driving frames 4 at two ends; the left push plate 8 is fixedly connected to the inner side surface of the active frame 4 through a bolt; the right push plate 9 is fixedly connected to the inner side surface of the driving frame 4 on the other side through a bolt; a left push plate 8 and a right push plate 9 are connected above the transmission part 7 in a meshing manner; the motor 11 is fixedly connected to the lower surface of the base 1 through a bolt, and the output end of the motor 11 is fixedly connected with the gearbox 12; the worm 13 is fixedly connected with an output shaft of the gearbox 12, and the worm 13 is meshed and connected with the lower part of the transmission part 7.

As shown in fig. 6, when the driving frame 4 moves outward, the clamping wheels 403 on the two side edges of the driving frame 4 and the fixed rack 301 on the inner side of the outer frame 3 are in transmission, the fixed rack 301 is fixed, and the clamping wheels 403 move and rotate.

Wherein, the driving frame 4 is two plates with H-shaped cross section, the middle of the driving frame 4 is provided with a rectangular gear groove 402, two ends of the push plate 401 are fixedly connected with the inner ends of two driving frames 4, the inside of the gear groove 402 is rotatably connected with a clamping wheel 403 with a similar gear structure through a bearing, the outer surfaces of two side frames of the plate body of the stretching frame 5 are provided with rectangular grooves, and the movable rack 501 is arranged in the groove of the side frame of the stretching frame 5, the driving frame 4 of the structure is shown in figure 4, two side edges of the stretching frame 5 are contacted with the clamping wheels 403 at two sides, and generate gear and rack transmission with the movable rack 501, the clamping wheels 403 rotate and move to drive the stretching frame 5 to move outwards, the moving distance of the stretching frame 5 is twice of the action range of the left push plate 8 or the right push plate 9, the stretching frames 5 at two ends simultaneously extend outwards, the stretching structure is unfolded, and the steering of the worm 13 is reversely controlled, the telescopic structure can be contracted.

Wherein, the transmission part 7 includes an upper transmission gear 701, a lower transmission gear 702 and a lower worm gear 703, the upper transmission gear 701 and the lower transmission gear 702 are two gears coaxially and fixedly connected, and the lower ends of the shafts of the upper transmission gear 701 and the lower transmission gear 702 are fixedly connected with a lower worm gear 703, the left push plate 8 is a folded plate with an L-shaped structure, the inner side surface of the left push plate 8 is provided with a left transmission tooth 801, the inner side of the break angle of the left push plate 8 is fixedly connected with a rib plate one 802, the right push plate 9 is a folded plate with an L-shaped structure, the inner side surface of the right push plate 9 is provided with a right transmission tooth 901, the inner side of the break angle of the right push plate 9 is fixedly connected with a rib plate two 902, the transmission part 7 of the structure is as shown in fig. 7, the worm 13 controls the lower worm gear 703 to move to form worm transmission, so as to form uniform rotation of the transmission part 7, therefore, the worm 13 is, can drive the worm wheel to act, otherwise, the worm wheel can not drive the worm 13 to act, so that the telescopic structure has the characteristics of stable power and convenient control.

The specific use mode and function of the embodiment are as follows:

in the utility model, firstly, the telescopic mechanism can be installed on a workbench of a production workshop or on action equipment with material pushing, ejector rods and the like for telescopic equipment to be assembled, the base 1 is fixed, when needed, the worm wheel 703 is controlled to act by using the motor 11 and the gearbox 12 through the worm 13 to form worm gear transmission, and the uniform rotation of the transmission part 7 is formed, therefore, the worm 13 drives the worm wheel to act when being taken as a driving part by utilizing the self-locking characteristic of the worm wheel and the worm, and can drive the worm wheel to act, otherwise, the worm wheel can not drive the worm 13 to act, so that the telescopic mechanism has the characteristics of stable power and convenient control, two gears above the transmission part 7 are simultaneously meshed with the left push plate 8 and the right push plate 9 to form rack and pinion transmission, the left push plate 8 and the right push plate 9 can be simultaneously expanded towards two sides or contracted towards the middle, and push plates 401 at two sides, the driving frame 4 is moved outwards, when the driving frame 4 moves outwards, the clamping wheels 403 on the two side edges of the driving frame 4 are in transmission with the fixed rack 301 on the inner side of the outer frame 3, the fixed rack 301 is fixed, the clamping wheels 403 move and rotate, the inner side of the clamping wheels 403 is also in meshed connection with the stretching frame 5, the two side edges of the stretching frame 5 are in contact with the clamping wheels 403 on the two sides and in gear-rack transmission with the movable rack 501, the clamping wheels 403 rotate and move to drive the stretching frame 5 to move outwards, the moving distance of the stretching frame 5 is twice of the action range of the left push plate 8 or the right push plate 9, the stretching frames 5 on the two ends simultaneously extend outwards to expand the telescopic structure, and conversely, the steering of the worm 13 is reversely controlled, and the telescopic structure can be contracted. It can be seen that the telescopic structure is simple and convenient to control, has a self-locking characteristic, is high in bearing capacity, can be applied to pushing materials or working tables in production of various products, and has a reliable self-locking characteristic, so that the safety is greatly improved.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a tensile multi-purpose steel construction is retrieved in deployable its characterized in that: the device comprises a base (1), a driving frame (4), a stretching frame (5), a stretching table (6), a transmission part (7), a left push plate (8), a right push plate (9), a telescopic rod (10), a motor (11) and a worm (13); two sides of the upper surface of the base (1) are connected with outer side frames (3) through welding, and a middle plate (2) is fixedly connected above the outer side frames (3); the active frame (4) is connected to the upper surface of the base (1) in a sliding manner; the fixed rack (301) of the outer side frame (3) is meshed and connected with the outer side of a clamping wheel (403) of the driving frame (4); the stretching frame (5) is movably connected to the upper surface of the base (1), and a movable rack (501) on the outer side of the stretching frame (5) is meshed and connected to the inner side surface of a clamping wheel (403) of the driving frame (4); the stretching table (6) is connected to the outer side of the upper surface of the stretching frame (5) through welding; the shaft of the transmission part (7) is rotatably connected to the upper surface of the base (1) through a bearing; two ends of the telescopic rod (10) are fixedly connected to push plates (401) on the inner sides of the driving frames (4) at two ends; the left push plate (8) is fixedly connected to the inner side surface of the active frame (4) through a bolt; the right push plate (9) is also fixedly connected to the inner side surface of the active frame (4) on the other side through a bolt; a left push plate (8) and a right push plate (9) are connected above the transmission part (7) in a meshing manner; the motor (11) is fixedly connected to the lower surface of the base (1) through a bolt, and the output end of the motor (11) is fixedly connected with the gearbox (12); the worm (13) is fixedly connected with an output shaft of the gearbox (12), and the worm (13) is meshed and connected with the lower part of the transmission part (7).

2. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: two rows of wheel grooves (101) are formed in the upper surface of the base (1), and a roller (102) is rotatably connected to the inside of each wheel groove (101) through a bearing.

3. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: the inner side surface of the outer side frame (3) is provided with a square groove, and a fixed rack (301) with a rack structure is arranged in the groove of the outer side frame (3).

4. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: the driving frame (4) is two plates with H-shaped sections, a rectangular gear groove (402) is formed in the middle of the driving frame (4), two ends of the pushing plate (401) are fixedly connected with the inner ends of the two driving frames (4), and a clamping wheel (403) with a similar gear structure is rotatably connected inside the gear groove (402) through a bearing.

5. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: of said stretching frame (5)

Rectangular grooves are formed in the outer surfaces of the side frames of the two sides of the plate body, and the movable rack (501) is arranged in the side frame grooves of the stretching frame (5).

6. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: the transmission part (7) comprises an upper transmission gear (701), a lower transmission gear (702) and a lower worm gear (703), the upper transmission gear (701) and the lower transmission gear (702) are two gears which are fixedly connected coaxially, and the lower ends of the upper transmission gear (701) and the lower transmission gear (702) are fixedly connected with the lower worm gear (703).

7. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: the left push plate (8) is a folded plate of an L-shaped structure, a left transmission tooth (801) is arranged on the surface of the inner side of the left push plate (8), and a rib plate I (802) is fixedly connected to the inner side of a folded angle of the left push plate (8).

8. The deployable, retractable and extendable multi-purpose steel structure of claim 1, wherein: the right push plate (9) is a folded plate with an L-shaped structure, the surface of the right push plate (9) close to the inner side is provided with a right transmission tooth (901), and the inner side of a folded angle of the right push plate (9) is fixedly connected with a second ribbed plate (902).