CN218641373U - Door motor pulley pin shaft fixing mechanism and storage box thereof - Google Patents

Abstract

The utility model discloses a door motor pulley round pin axle fixed establishment and storage box thereof, including fixed main part, including the interior fixed plate subassembly, with the exterior fixed plate subassembly that the interior fixed plate subassembly is connected, set up the first screw rod subassembly on the exterior fixed plate subassembly, with the spacing subassembly that the exterior fixed plate subassembly is connected and, the storage box main part, including the box, set up in the chamber door of box top to and set up the spacing subassembly of chamber door on the box. The beneficial effects of the utility model are that drive interior fixed plate subassembly and the cooperation fixed pulley round pin axle of outer fixed plate subassembly through rotating first threaded rod, can carry out spacing fixed to interior fixed plate subassembly and outer fixed plate subassembly through spacing subassembly, prevent the condition of fixed inefficacy from appearing, the stability and the security of pulley have been improved, through trapezoidal dop on the chamber door and the spacing dop in a left side and the spacing dop in the right side mutually support, it is spacing to realize, if the cancellation is spacing, utilize gear and first pinion rack always, the straight-tooth plate of second coordinates the spacing chamber door of opening of cancellation.

Description

Door motor pulley pin shaft fixing mechanism and storage box thereof

Technical Field

The utility model relates to a gantry crane technical field, especially a motor-driven pulley round pin axle fixed establishment of door and storage box thereof.

Background

In hoist and mount process, movable pulley round pin axle plays very important effect, can fix the movable pulley, lets its steady operation, however sometimes in the course of the work, because vibrations or other reasons cause the round pin axle to drop, will lead to the movable pulley to appear the dislocation in service like this, can cause serious consequence, for this reason, the inventor designs a section can press from both sides tight fixed device to the movable pulley round pin axle.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the abstract and the title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the present application, and such simplifications or omissions cannot be used to limit the scope of the present invention.

In view of the movable pulley round pin axle can appear squinting, droing in the use, lead to the movable pulley in service the problem of dislocation appearing, has provided the utility model discloses.

Therefore, the utility model aims at providing a door motor pulley round pin axle fixed establishment, it can the fixed clamp tight movable pulley round pin axle, has improved the stability and the security of hoist and mount.

In order to solve the technical problem, the utility model provides a following technical scheme: a door motor-driven pulley pin shaft fixing mechanism comprises a fixing main body, and comprises an inner fixing plate assembly, an outer fixing plate assembly connected with the inner fixing plate assembly, a first screw assembly arranged on the outer fixing plate assembly, and a limiting assembly connected with the outer fixing plate assembly.

As the utility model discloses a door power-driven pulley round pin axle fixed establishment's an preferred scheme, wherein: the inner fixed plate assembly comprises a left inner fixed plate, a right inner fixed plate, a circular groove opening formed in the right inner fixed plate and first spring fixing grooves formed in the left inner fixed plate and the right inner fixed plate.

As the utility model discloses a door power-driven pulley round pin axle fixed establishment's an preferred scheme, wherein: the outer fixed plate component comprises a left outer fixed plate, a right outer fixed plate, a second spring fixing groove, a first spring, a first limiting column and a second limiting column, wherein the second spring fixing groove is formed in the left outer fixed plate and the right outer fixed plate, the first spring is arranged in the first spring fixing groove and the second spring fixing groove, the first limiting column is arranged on the left inner fixed plate and connected with the left outer fixed plate, and the second limiting column is arranged on the right inner fixed plate and connected with the right outer fixed plate.

As the utility model discloses a door power-driven pulley round pin axle fixed establishment's an preferred scheme, wherein: the first screw rod assembly comprises a first threaded rod connected with the right outer fixing plate and a first handle connected with the first threaded rod.

As the utility model discloses a door power-driven pulley round pin axle fixed establishment's an preferred scheme, wherein: the limiting assembly comprises a limiting toothed plate connected with the right outer fixing plate, a limiting toothed column arranged on the left outer fixing plate, a shell arranged on the outer side of the limiting toothed column and connected with the left outer fixing plate, a second spring arranged between the limiting toothed column and the shell, and a second threaded rod arranged on the side face of the limiting toothed column and connected with the shell.

As the utility model discloses a door power-driven pulley round pin axle fixed establishment's an preferred scheme, wherein: the limit toothed plate is fixedly connected with the right outer fixing plate.

As the utility model discloses a door motor pulley round pin axle fixed establishment's an optimal selection scheme, wherein: the first limiting column is fixedly connected with the left inner fixing plate and movably connected with the left outer fixing plate; the second limiting column is fixedly connected with the right inner fixing plate and movably connected with the right outer fixing plate.

The utility model discloses a door machine movable pulley round pin axle fixed establishment's beneficial effect: the utility model discloses a rotate first threaded rod and drive interior fixed plate subassembly and outer fixed plate subassembly cooperation fixed pulley round pin axle, can carry out spacing fixed to interior fixed plate subassembly and outer fixed plate subassembly through spacing subassembly, prevent the condition of fixed inefficacy from appearing, can firmly fix the pulley round pin axle, improved movable pulley rotation security.

In view of examining and repairing the change in-process, can appear a plurality of door machine movable pulley round pin axle fixing device and break down or pulley round pin axle breaks down, the maintainer carries several at will usually, does not have special storage box, probably can damage, for this reason, has provided a door machine movable pulley round pin axle storage box.

For solving and carrying inconvenient problem, the utility model discloses still provide following technical scheme: comprises a door motor-driven pulley pin shaft fixing mechanism and a door motor-driven pulley pin shaft fixing mechanism,

the storage box main body comprises a box body, a box door arranged above the box body and a box door limiting assembly arranged on the box body; the fixed main body is arranged inside the storage box main body.

As the utility model discloses an optimal selection scheme of door machine movable pulley round pin axle storage box, wherein: the box door limiting assembly comprises a left limiting chuck and a right limiting chuck, a first limiting baffle plate of the box body, a second baffle plate is arranged on the left limiting chuck and the right limiting chuck, a third spring is arranged on the side face of the left limiting chuck and the side face of the right limiting chuck, a first straight toothed plate connected with the upper end of the left limiting chuck, a second straight toothed plate connected with the lower end of the right limiting chuck, a gear connected with the first straight toothed plate and the second straight toothed plate, a third handle connected with the gear, and a trapezoidal chuck connected with the box door.

As the utility model discloses an optimal scheme of door machine movable pulley round pin axle storage box, wherein: the left limiting chuck is fixedly connected with the first straight toothed plate, and the right limiting chuck is fixedly connected with the second straight toothed plate.

The utility model discloses a beneficial effect of door machine movable pulley round pin axle storage box: the utility model discloses a trapezoidal dop and the spacing dop in a left side and the spacing dop in the right side on the chamber door mutually support, realize spacingly, if the cancellation is spacing, utilize gear and first straight toothed plate, second straight toothed plate to cooperate the cancellation spacing chamber door of opening, the inside a plurality of storage check that set up of box, a plurality of pulley round pin axle fixed establishment of portability when going out to overhaul can also place some movable pulley round pin axles moreover, have greatly made things convenient for the staff.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is an overall schematic diagram of a movable pulley pin shaft fixing mechanism of a gantry crane.

Fig. 2 is a top view of the movable pulley pin fixing mechanism of the gantry crane.

Fig. 3 is a sectional view at the B-B position of the movable pulley pin shaft fixing mechanism of the gantry crane.

Fig. 4 isbase:Sub>A sectional view at A-A of the movable pulley pin shaft fixing mechanism of the gantry crane.

Fig. 5 is an enlarged view of the position H of the movable pulley pin shaft fixing mechanism of the gantry crane.

Fig. 6 is a partial enlarged view of a limiting component of the movable pulley pin shaft fixing mechanism of the gantry crane.

Fig. 7 is a partial sectional enlarged view of the C-C part of the movable pulley pin shaft fixing mechanism of the gantry crane.

Fig. 8 is a schematic diagram of a movable pulley pin shaft storage box of the door machine.

Fig. 9 is a top view of the door machine movable pulley pin shaft storage box.

FIG. 10 is an enlarged sectional view of the movable pulley pin shaft storage box of the gantry crane at the position D-D.

FIG. 11 is an enlarged sectional view of the movable pulley pin shaft storage box of the gantry crane at the position E-E.

Fig. 12 is an upper sectional view of the case body of the door machine movable pulley pin shaft storage case.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1, the first embodiment of the present invention provides a door movable pulley pin fixing mechanism, which includes a fixing main body 100, the fixing main body 100 includes an internal fixing plate assembly 101, an external fixing plate assembly 102, a first screw assembly 103 and a limiting assembly 104, the internal fixing plate assembly 101 and the external fixing plate assembly 102 are driven by the first screw assembly 103 to clamp and fix, and the internal fixing plate assembly 101 and the external fixing plate assembly 102 can be limited by the limiting assembly 104.

Specifically, the fixing body 100 includes an inner fixing plate assembly 101, an outer fixing plate assembly 102 connected to the inner fixing plate assembly 101, a first screw assembly 103 disposed on the outer fixing plate assembly 102, and a limiting assembly 104 connected to the outer fixing plate assembly 102, and the fixing body 100 includes the inner fixing plate assembly 101, the outer fixing plate assembly 102 connected to the inner fixing plate assembly 101, the first screw assembly 103 disposed on the outer fixing plate assembly 102, and the limiting assembly 104 connected to the outer fixing plate assembly 102.

To sum up, the utility model discloses a door machine movable pulley round pin axle fixed establishment drives internal fixation board subassembly 101 and external fixation board subassembly 102 through rotating first threaded rod 103a and presss from both sides tightly fixedly, can carry on spacingly to internal fixation board subassembly 101 and external fixation board subassembly 102 through spacing subassembly 104, very big improvement the stability and the security of movable pulley.

Example 2

Referring to fig. 1 to 7, for the utility model discloses the second embodiment, in last embodiment, door machine movable pulley round pin axle fixed establishment includes fixed main part 100, and fixed main part 100 includes interior fixed plate subassembly 101, outer fixed plate subassembly 102, first screw rod subassembly 103 and spacing subassembly 104 and constitutes, and it is fixed to drive interior fixed plate subassembly 101 and outer fixed plate subassembly 102 through first screw rod subassembly 103 and press from both sides tightly, can carry on spacingly to interior fixed plate subassembly 101 and outer fixed plate subassembly 102 through spacing subassembly 104.

Specifically, the fixing body 100 comprises an inner fixing plate assembly 101, an outer fixing plate assembly 102 connected with the inner fixing plate assembly 101, a first screw assembly 103 arranged on the outer fixing plate assembly 102, and a limiting assembly 104 connected with the outer fixing plate assembly 102, and the fixing body 100 comprises the inner fixing plate assembly 101, the outer fixing plate assembly 102 connected with the inner fixing plate assembly 101, the first screw assembly 103 arranged on the outer fixing plate assembly 102, and the limiting assembly 104 connected with the outer fixing plate assembly 102.

Further, the inner fixing plate assembly 101 includes left and right inner fixing plates 101a and 101b, a circular notch 101c provided on the right inner fixing plate 101b, and a first spring fixing groove 101d provided on both the left and right inner fixing plates 101a and 101 b.

Further, the outer fixing plate assembly 102 includes a left outer fixing plate 102a and a right outer fixing plate 102b, second spring fixing grooves 102c disposed on the left outer fixing plate 102a and the right outer fixing plate 102b, first springs 102d disposed in the first spring fixing grooves 101d and the second spring fixing grooves 102c, first limiting columns 102e disposed on the left inner fixing plate 101a and connected to the left outer fixing plate 102a, and second limiting columns 102f disposed on the right inner fixing plate 101b and connected to the right outer fixing plate 102b, wherein the first springs 102d are disposed in multiple groups, and the first limiting columns 102e and the second limiting columns 102f can play a role in limiting support.

Further, the first screw assembly 103 includes a first threaded rod 103a connected to the right outer fixing plate 102b, and a first handle 103b connected to the first threaded rod 103a, and the first threaded rod 103a is threadedly connected to the right outer fixing plate 102 b.

Preferably, the limiting toothed plate 104a is connected to the right outer fixing plate 102b, the limiting toothed column 104b is disposed on the left outer fixing plate 102a, the housing 104c is disposed outside the limiting toothed column 104b and connected to the left outer fixing plate 102a, the second spring 104d is disposed between the limiting toothed column 104b and the housing 104c, and the second threaded rod 104e is disposed on a side surface of the limiting toothed column 104b and connected to the housing 104c, the limiting toothed plate 104a is provided with a plurality of sets of limiting teeth, the limiting toothed plate 104a is fixedly connected to the right outer fixing plate 102b, the limiting toothed plate 104a is movably connected to the left outer fixing plate 102a, the housing 104c is fixedly connected to the left outer fixing plate 102a, a top of the second threaded rod 104e is movably connected to a tail of the limiting toothed column 104b, a top of the second threaded rod 104e is clamped to the tail of the limiting toothed column 104b and cannot rotate, the second threaded rod 104e is in threaded connection with the housing 104c, and the second threaded rod 104e can drive the limiting toothed column 104b to compress the second spring 104d so that the second spring 104d is far away from the limiting toothed column 104a to cancel the limiting toothed rod 104 a.

It should be noted that the front of the limit toothed plate 104a has an inclined surface inclined backward, the side of the limit toothed column 104b has an inclined surface corresponding to the inclined surface, so that when the limit toothed plate 104a advances forward, the inclined teeth on the upper surface can press the inclined teeth on the limit toothed column 104b, and thus smoothly pass through the limit toothed column 104b, the rear of the limit toothed plate 104a and the other surface of the limit toothed column 104b are at right angles, so that the limit toothed plate can only advance but cannot retreat, and if the limit toothed plate retreats, the second threaded rod 104e can be manually rotated to cancel the limit.

Further, the limit tooth plate 104a is fixedly connected with the right outer fixing plate 102 b.

Further, the first limit column 102e is fixedly connected with the left inner fixing plate 101a and movably connected with the left outer fixing plate 102 a; the second limiting column 102f is fixedly connected with the right inner fixing plate 101b and movably connected with the right outer fixing plate 102 b.

When the limit device is used, the first threaded rod 103a is rotated first, the front end of the first threaded rod 103a is jacked into the circular groove 101c in the right inner fixing plate 101b, then the first threaded rod 103a is rotated to drive the right outer fixing plate 102b to move towards the front end, the limit toothed plate 104a connected with the right outer fixing plate 102b also moves forwards, the front end of the limit tooth on the limit toothed plate 104a is provided with an inclined surface, the limit toothed column 104b and the limit tooth on the limit toothed plate 104a are provided with matched inclined surfaces, the limit toothed plate 104a is in the advancing process, the limit toothed column 104b is subjected to the acting force of advancing extrusion, the limit toothed column 104b compresses the second spring 104d, the limit toothed plate 104a advances, the limit toothed column 104b is automatically clamped into the groove of the next limit toothed plate 104a under the action of the second spring 104d to realize automatic limit, if the limit is to be cancelled, the second threaded rod 104e needs to be rotated, the top end of the second threaded rod 104e is connected with one side of the limit toothed column 104b, and the limit toothed column 104b is cancelled under the action of the second threaded rod 104c, and the limit toothed column 104b is further removed from the limit toothed plate 104d, thereby.

To sum up, the utility model discloses a door machine movable pulley round pin axle fixed establishment drives right inner fixed plate 101b through first threaded rod 103a and moves forward, and spacing pinion rack 104a also moves forward, coordinates through spacing tooth post 104b and spacing pinion rack 104a, can realize automatic spacing, drives spacing tooth post 104b through rotating second threaded rod 104e and carries out the compression of second spring 104d, and spacing tooth post 104b keeps away from spacing pinion rack 104a to the cancellation is spacing, the fixed pulley round pin axle that this mechanism can be good.

Example 3

Referring to fig. 8 to 12, for the utility model discloses a third embodiment, this embodiment provides a motor-driven pulley round pin axle storage box of door, and it includes storage box main part 200, and storage box main part 200 comprises box 201, chamber door 202 and the spacing subassembly 203 of chamber door, sets up box 201 in order to place pulley round pin axle fixed establishment, sets up the spacing subassembly 203 of chamber door in order to lead to the chamber door to open suddenly in the motion or fall suddenly, causes the condition that pulley round pin axle fixed establishment appears damaging.

Specifically, the storage box main body 200 comprises a box body 201, a box door 202 arranged above the box body, and a box door limiting component 203 arranged on the box body 201, wherein the fixing main body 100 is arranged inside the storage box main body 200, the box body 201 is arranged to place a pulley pin fixing mechanism, the box door limiting component 203 is arranged to limit the box door, and damage to the pulley pin fixing mechanism caused by collision and falling in the moving process is prevented.

Further, the door limiting assembly 203 comprises a left limiting chuck 203a and a right limiting chuck 203b, a first limiting baffle 203c connected with the box body 201, a second baffle 203d arranged on each of the left limiting chuck 203a and the right limiting chuck 203b, a third spring 203e arranged on each of the lateral surfaces of the left limiting chuck 203a and the right limiting chuck 203b, a first spur gear plate 203f connected with the upper end of the left limiting chuck 203a, a second spur gear plate 203g connected with the lower end of the right limiting chuck 203b, a gear 203h connected with the first spur gear plate 203f and the second spur gear plate 203g, a third handle 203j connected with the gear 203h, and a trapezoidal chuck 203k connected with the door 202.

Preferably, first limit baffle 203c and box 201 fixed connection, and first limit baffle 203c sets up to two sets ofly, left limit chuck 203a and right limit chuck 203b are all fixed and are set up second baffle 203d, left limit chuck 203a upper end and first straight-tooth plate 203f are fixed connection, right limit chuck 203b lower extreme and second straight-tooth plate 203g are fixed connection, and it has the trompil that can hold first straight-tooth plate 203f and second straight-tooth plate 203g seesaw to open on the box 201, trapezoidal chuck 203 k's upper end and chamber door 202 are fixed connection.

It should be noted that both sides of the trapezoidal chuck 203k are in the shape of an inverted arrow, both sides are inclined surfaces, and the left and right limit chucks 203a and 203b are also inclined surfaces in cooperation with the trapezoidal chuck 203k.

Further, the left limit chuck 203a is fixedly connected with the first spur plate 203f, and the right limit chuck 203b is fixedly connected with the second spur plate 203 g.

When the box door is used, the box door 202 is closed, the trapezoidal clamping head 203k on the box door 202 can downwards extrude the left limiting clamping head 203a and the right limiting clamping head 203b at two sides, the left limiting clamping head 203a and the right limiting clamping head 203b can compress the third spring 203e under the action of pressure, so that the trapezoidal clamping head 203k can reach the bottom sides of the left limiting clamping head 203a and the right limiting clamping head 203b, at the moment, the left limiting clamping head 203a and the right limiting clamping head 203b can automatically return to the initial position under the action of the third spring 203e due to disappearance of the extrusion force, and the second baffle plate 203d on the left limiting clamping head 203a and the right limiting clamping head 203b can also be matched with the first limiting baffle plate 203c for limiting, so that the left limiting clamping head 203a and the right limiting clamping head 203b are prevented from excessively coming out; if the door needs to be opened, the third handle 203j is rotated, the third handle 203j drives the gear 203h to rotate, the gear 203h rotates to drive the first spur gear plate 203f and the second spur gear plate 203g to move, the limit can be cancelled, and the door is opened.

To sum up, the utility model discloses a door machine movable pulley round pin axle storage box passes through trapezoidal dop 203k can extrude the spacing dop 203a in a left side and the spacing dop 203b in the right side of both sides downwards, trapezoidal dop 203k will reach the bottom side of the spacing dop 203a in a left side and the spacing dop 203b in the right side, the spacing dop 203a in a left side and the spacing dop 203b in the right side can carry on spacingly to trapezoidal dop 203k, drive first pinion rack 203f and second straight-tooth plate 203g through bull gear 203h and move, can cancel spacing opening the chamber door, can place multiunit pulley round pin axle fixed establishment in the storage box main part 200 main part, also can place some pulley round pin axles, the very big engineering maintainer that has made things convenient for.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a motor-driven pulley round pin axle fixed establishment of door which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the fixing main body (100) comprises an inner fixing plate component (101), an outer fixing plate component (102) connected with the inner fixing plate component (101), a first screw rod component (103) arranged on the outer fixing plate component (102), and a limiting component (104) connected with the outer fixing plate component (102).

2. The gantry crane movable pulley pin shaft fixing mechanism of claim 1, characterized in that: the inner fixing plate assembly (101) comprises a left inner fixing plate (101 a), a right inner fixing plate (101 b), a round notch (101 c) formed in the right inner fixing plate (101 b), and first spring fixing grooves (101 d) formed in the left inner fixing plate (101 a) and the right inner fixing plate (101 b).

3. The gantry crane movable pulley pin shaft fixing mechanism as claimed in claim 2, wherein: the outer fixing plate assembly (102) comprises a left outer fixing plate (102 a) and a right outer fixing plate (102 b), second spring fixing grooves (102 c) formed in the left outer fixing plate (102 a) and the right outer fixing plate (102 b), first springs (102 d) arranged in the first spring fixing grooves (101 d) and the second spring fixing grooves (102 c), first limiting columns (102 e) arranged on the left inner fixing plate (101 a) and connected with the left outer fixing plate (102 a), and second limiting columns (102 f) arranged on the right inner fixing plate (101 b) and connected with the right outer fixing plate (102 b).

4. The gantry crane movable pulley pin shaft fixing mechanism as claimed in claim 3, wherein: the first screw assembly (103) comprises a first threaded rod (103 a) connected with the right outer fixing plate (102 b), and a first handle (103 b) connected with the first threaded rod (103 a).

5. The gantry crane movable pulley pin shaft fixing mechanism as claimed in claim 4, wherein: the limiting assembly (104) comprises a limiting toothed plate (104 a) connected with the right outer fixing plate (102 b), a limiting toothed column (104 b) arranged on the left outer fixing plate (102 a), a shell (104 c) arranged on the outer side of the limiting toothed column (104 b) and connected with the left outer fixing plate (102 a), a second spring (104 d) arranged between the limiting toothed column (104 b) and the shell (104 c), and a second threaded rod (104 e) arranged on the side face of the limiting toothed column (104 b) and connected with the shell (104 c).

6. The gantry crane movable pulley pin shaft fixing mechanism as claimed in claim 5, wherein: the limit toothed plate (104 a) is fixedly connected with the right outer fixing plate (102 b).

7. The gantry crane movable pulley pin shaft fixing mechanism according to claim 5 or 6, characterized in that: the first limiting column (102 e) is fixedly connected with the left inner fixing plate (101 a) and movably connected with the left outer fixing plate (102 a); the second limiting column (102 f) is fixedly connected with the right inner fixing plate (101 b) and movably connected with the right outer fixing plate (102 b).

8. The utility model provides a motor-driven pulley round pin axle storage box of door which characterized in that: comprises the gantry crane movable pulley pin shaft fixing mechanism of any one of claims 1 to 7, and,

the storage box main body (200) comprises a box body (201), a box door (202) arranged above the box body, and a box door limiting component (203) arranged on the box body (201); the fixing body (100) is provided inside the storage case body (200).

9. The door machine movable pulley pin shaft storage box of claim 8, characterized in that: the spacing subassembly of chamber door (203) include left spacing dop (203 a) and right spacing dop (203 b), with first limit baffle (203 c) that box (201) are connected, left side limit dop (203 a) with right side limit dop (203 b) all sets up second baffle (203 d), left side limit dop (203 a) with right side limit dop (203 b) side all sets up third spring (203 e), with first spur gear board (203 f) that left side limit dop (203 a) upper end is connected, with second spur gear board (203 g) that right side limit dop (203 b) lower extreme is connected, with first spur gear board (203 f) with gear (203 h) that second spur gear board (203 g) is connected, with third handle (203 j) that gear (203 h) are connected, and with trapezoidal dop (203 k) that chamber door (202) is connected.

10. The door machine movable pulley pin shaft storage box according to claim 9, characterized in that: the left limiting chuck (203 a) is fixedly connected with the first straight toothed plate (203 f), and the right limiting chuck (203 b) is fixedly connected with the second straight toothed plate (203 g).

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