阅读说明：本技术 一种电机结构 (Motor structure ) 是由 张超 于 2021-09-26 设计创作，主要内容包括：本发明涉及一种电机结构,包括上机壳和下机壳,所述上机壳和下机壳可拆装设置,所述上机壳和下机壳之间通过固定板进行固定连接；本发明中通过对现有的电机机壳结构进行优化,优化后的电机机壳,从一体化结构改装为可拆装式结构,这样在电机发生损坏需要维修时,可通过便捷拆装达到高效率和轻便操作的效果。(The invention relates to a motor structure, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are detachably arranged, and are fixedly connected through a fixing plate; according to the invention, the structure of the existing motor shell is optimized, and the optimized motor shell is converted into a detachable structure from an integrated structure, so that when the motor is damaged and needs to be maintained, the effects of high efficiency and light operation can be achieved through convenient disassembly and assembly.)

1. The utility model provides a motor structure, includes upper casing (1) and lower casing (2), its characterized in that, upper casing (1) and lower casing (2) dismantled and assembled setting, carry out fixed connection through fixed plate (41) between upper casing (1) and lower casing (2), fixed establishment (4) are including fixed plate (41) and fixed slot (42), fixed plate (41) are fixed to be set up on the lateral wall of lower casing (2), and have seted up first fixed orifices (44) on fixed plate (41), fixed slot (42) are fixed to be set up on the lateral wall of upper casing (1), and have seted up second fixed orifices (45) on fixed slot (42), but mobile grafting has same fixing bolt (46) in first fixed orifices (44) and second fixed orifices (45).

2. The electric machine structure of claim 1, wherein: the fixing bolt (46) is externally threaded and sleeved with a fixing nut (47), and the fixing plate (41) and the fixing groove (42) are connected through a plurality of limiting supporting mechanisms (43).

3. The electric machine structure of claim 2, wherein: the limiting support mechanism (43) comprises a limiting support rod (431), a limiting support barrel (432) and a limiting support spring (433), wherein the limiting support rod (431) is movably inserted into the limiting support barrel (432), the limiting support spring (433) is wound outside the limiting support rod (431), and two ends of the limiting support spring (433) are respectively and fixedly connected to the side wall of the limiting support rod (431) and the outer side wall of the limiting support barrel (432).

4. The electric machine structure of claim 1, wherein: be provided with sealing mechanism (3) between upper casing (1) and lower casing (2), sealing mechanism (3) are including sealing washer (31) and seal groove (32), but sealing washer (31) grafting is in seal groove (32), sealing washer (31) are fixed to be set up on the lower terminal surface of upper casing (1), seal groove (32) are seted up on the up end of lower casing (2).

5. The electric machine structure of claim 2, wherein: be provided with buffer gear (6) in fixed slot (42), including third fixed orifices (61), direction supporting component (62) and buffering movable plate (63), buffering movable plate (63) activity sets up in fixed slot (42), and fixedly connected with a plurality of direction supporting component (62) on the lower terminal surface of buffering movable plate (63), the free end fixed connection of direction supporting component (62) is on the interior diapire of fixed slot (42), a plurality of third fixed orifices (61) have been seted up on buffering movable plate (63).

6. The electric machine structure of claim 5, wherein: the guide supporting assembly (62) comprises a guide supporting rod (621), a guide supporting cylinder (622) and a guide supporting spring (623), the guide supporting rod (621) is movably inserted into the guide supporting cylinder (622), the guide supporting spring (623) is wound outside the guide supporting rod (621), and two ends of the guide supporting spring (623) are respectively and fixedly connected to the side wall of the guide supporting rod (621) and the outer side wall of the guide supporting cylinder (622).

7. The electric machine structure according to any of claims 1-6, characterized in that: a first anti-falling mechanism (7) is arranged in the fixing mechanism (4).

8. The electric machine structure of claim 7, wherein: the first anti-falling mechanism (7) comprises a first through hole (71) and a second through hole (72), the first through hole (71) is formed in the buffer moving plate (63), the second through hole (72) is formed in the fixed groove (42), the fixed plate (41) is provided with an inserting support plate (73) matched with the first through hole (71), the inserting support plate (73) is provided with a first moving groove (75) and a second moving groove (79), the first moving groove (75) and the second moving groove (79) are communicated, the first moving groove (75) is internally movably provided with a first clamping plate (74), the side wall of the first clamping plate (74) is fixedly connected with a first support spring (76), the free end of the first support spring (76) is fixedly connected to the side wall of the first moving groove (75), and the two side walls of the first clamping plate (74) are fixedly connected with limit sliders (711), and limiting slide block (711) slide set up in the spacing spout (712) of seting up on grafting backup pad (73), fixedly connected with pulls steel cable (77) on the lower terminal surface of first joint board (74), and pull the free end fixed connection of steel cable (77) on the up end of rectangle touch multitouch (78), rectangle touch multitouch (78) slide and set up in second shifting chute (79), and fixedly connected with second supporting spring (710) on the diapire of second shifting chute (79), the upper end fixed connection of second supporting spring (710) is on rectangle touch multitouch (78), the aperture of first through-hole (71) is less than the aperture setting of second through-hole (72).

9. The electric machine structure of claim 8, wherein: and a second anti-falling mechanism (8) is arranged in the first anti-falling mechanism (7).

10. The electric machine structure of claim 9, wherein: the second anti-falling mechanism (8) comprises a contact rod (81) and a third moving groove (82), the contact rod (81) is movably inserted in a third moving groove (82) formed on the inserting support plate (73), and the outside of the touch bar (81) is wound and connected with a third supporting spring (83), the two ends of the third supporting spring (83) are respectively and fixedly connected on the side wall of the touch bar (81) and the side wall of the third moving groove (82), the lower end of the contact rod (81) is fixedly connected with a trapezoidal contact block (84), a second clamping and connecting plate (85) is arranged in the third moving groove (82) in a sliding way, and the side wall of the second clamping plate (85) is fixedly connected with a plurality of fourth supporting springs (86), the free end of the fourth supporting spring (86) is fixedly connected to the side wall of the third moving groove (82), and a supporting through hole (87) communicated with the second through hole (72) is formed in the fixing groove (42).

Technical Field

The invention relates to the technical field of motors, in particular to a motor structure.

Background

With the pace of social and economic development accelerating, all trades change day by day. Various electrically powered devices have been developed and used in a variety of fields. In which motor structures have been widely used in many fields as key devices. The existing motor shell is of an integrated structure and is fixed in a welding mode during fixing, but the motor shell is inconvenient to disassemble and assemble when the motor is damaged and needs to be maintained in the mode.

Disclosure of Invention

(1) Technical problem to be solved

The present invention is directed to overcome the disadvantages of the prior art, and to provide a motor structure to solve the above problems.

(2) Technical scheme

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:

the motor structure comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are detachably arranged, and the upper shell and the lower shell are fixedly connected through a fixing plate.

Further, fixed establishment includes fixed plate and fixed slot, the fixed plate is fixed to be set up on the lateral wall of casing down, and has seted up first fixed orifices on the fixed plate, the fixed slot is fixed to be set up on the lateral wall of last casing, and has seted up the second fixed orifices on the fixed slot, but mobile grafting in first fixed orifices and the second fixed orifices has same fixing bolt, and fixing bolt external thread cover is equipped with fixation nut, connect through the spacing supporting mechanism of a plurality of between fixed plate and the fixed slot.

Furthermore, the limiting support mechanism comprises a limiting support rod, a limiting support barrel and a limiting support spring, the limiting support rod is movably inserted into the limiting support barrel, the limiting support spring is wound and connected outside the limiting support rod, and two ends of the limiting support spring are respectively and fixedly connected to the side wall of the limiting support rod and the outer side wall of the limiting support barrel.

Further, be provided with sealing mechanism between upper housing and the lower casing, sealing mechanism includes sealing washer and seal groove, but the sealing washer is pegged graft in the seal groove, the sealing washer is fixed to be set up on the lower terminal surface of upper housing, the seal groove is seted up on the up end of lower casing.

Further, be provided with buffer gear in the fixed slot, including third fixed orifices, direction supporting component and buffering movable plate, buffering movable plate activity sets up in the fixed slot, and fixedly connected with a plurality of direction supporting component on the lower terminal surface of buffering movable plate, direction supporting component's free end fixed connection is on the interior diapire of fixed slot, a plurality of third fixed orifices has been seted up on the buffering movable plate.

Further, the direction supporting component includes direction bracing piece, direction supporting cylinder and direction supporting spring, the activity of direction bracing piece is pegged graft in the direction supporting cylinder, direction supporting spring winding is connected outside the direction bracing piece, and the both ends of direction supporting spring fixed connection respectively on the lateral wall of direction bracing piece and on the lateral wall of direction supporting cylinder.

Further, a first anti-falling mechanism is arranged in the fixing mechanism.

Further, the first anti-falling mechanism comprises a first through hole and a second through hole, the first through hole is arranged on the buffer moving plate, the second through hole is arranged on the fixed groove, the fixed plate is provided with an inserting support plate matched with the first through hole, the inserting support plate is provided with a first moving groove and a second moving groove, the first moving groove and the second moving groove are communicated, a first clamping plate is movably arranged in the first moving groove, the side wall of the first clamping plate is fixedly connected with a first support spring, the free end of the first support spring is fixedly connected to the side wall of the first moving groove, the two side walls of the first clamping plate are fixedly connected with limit sliding blocks, the limit sliding blocks are slidably arranged in the limit sliding grooves arranged on the inserting support plate, the lower end face of the first clamping plate is fixedly connected with a traction steel rope, and the free end of the traction steel rope is fixedly connected to the upper end face of the rectangular abutting block, the rectangle conflict piece slides and sets up in the second shifting chute, and fixedly connected with second supporting spring on the diapire of second shifting chute, second supporting spring's upper end fixed connection is on the rectangle conflict piece, the aperture of first through-hole is less than the aperture setting of second through-hole.

Furthermore, a second anti-falling mechanism is arranged in the first anti-falling mechanism.

Further, the second anti-disengaging mechanism comprises a touch rod and a third moving groove, the touch rod is movably inserted into the third moving groove formed in the inserting supporting plate, a third supporting spring is wound outside the touch rod, two ends of the third supporting spring are fixedly connected to the side wall of the touch rod and the side wall of the third moving groove respectively, a trapezoidal touch block is fixedly connected to the lower end of the touch rod, a second clamping plate is arranged in the third moving groove in a sliding mode, a plurality of fourth supporting springs are fixedly connected to the side wall of the second clamping plate, free ends of the fourth supporting springs are fixedly connected to the side wall of the third moving groove, and supporting through holes communicated with the second through holes are formed in the fixing grooves.

(3) Has the advantages that:

according to the invention, the structure of the existing motor shell is optimized, and the optimized motor shell is converted into a detachable structure from an integrated structure, so that when the motor is damaged and needs to be maintained, the effects of high efficiency and light operation can be achieved through convenient disassembly and assembly.

According to the invention, the upper casing and the lower casing are additionally provided with the fixing mechanisms which are used for fixedly connecting the upper casing and the lower casing, and the fixing mechanisms are reasonable in structural design, so that the upper casing and the lower casing can be stably fixed, and meanwhile, the effect of convenient operation can be achieved during operation.

According to the invention, the sealing mechanism is additionally arranged between the upper casing and the lower casing, the sealing performance between the upper casing and the lower casing can be ensured due to the arrangement of the sealing mechanism, and the sealing mechanism is arranged in a built-in structure, so that the rapid aging of the sealing mechanism can be avoided, and the service life of the sealing mechanism can be prolonged.

The buffer mechanism is additionally arranged in the fixed groove, the buffer mechanism can play a buffer role, and particularly, the buffer mechanism is arranged in order to avoid rigid extrusion force to the fixed groove in the process of fixing the combined structure of the fixed bolt and the fixed nut.

The buffer moving plate fixing device is additionally provided with a first anti-falling mechanism which is used for assisting the fixing mechanism to fix the upper casing and the lower casing, and particularly, after the fixing mechanism fixes the upper casing and the lower casing, the first anti-falling mechanism can prevent the buffer moving plate from upwards resetting in the fixing groove through the limiting clamping effect.

The fixing mechanism is additionally provided with the second anti-falling mechanism which is used for assisting the fixing mechanism to fix the upper casing and the lower casing, and particularly, after the fixing mechanism fixes the upper casing and the lower casing, the second anti-falling mechanism can prevent the fixed plate and the fixed groove from moving relative to each other through limiting and abutting effects, so that the upper casing and the lower casing are fixed more firmly.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a motor structure according to the present invention;

FIG. 2 is an enlarged schematic view of structure A in FIG. 1 of the motor of the present invention;

FIG. 3 is an enlarged schematic view of structure B in FIG. 1 of the motor of the present invention;

FIG. 4 is a schematic diagram of a motor structure of FIG. 1 with a partially enlarged structure;

FIG. 5 is a schematic view of a further enlarged portion of FIG. 1 of the motor of the present invention;

FIG. 6 is an enlarged schematic view of structure C in FIG. 5 of the motor of the present invention;

fig. 7 is a partially enlarged structural schematic view of the motor structure diagram 5 of the present invention.

The reference numbers are as follows:

the upper housing 1, the lower housing 2, the sealing mechanism 3, the sealing ring 31, the sealing groove 32, the fixing mechanism 4, the fixing plate 41, the fixing groove 42, the limit support mechanism 43, the limit support rod 431, the limit support cylinder 432, the limit support spring 433, the first fixing hole 44, the second fixing hole 45, the fixing bolt 46, the fixing nut 47, the buffer mechanism 6, the third fixing hole 61, the guide support component 62, the guide support rod 621, the guide support cylinder 622, the guide support spring 623, the buffer moving plate 63, the first anti-dropping mechanism 7, the first through hole 71, the second through hole 72, the plug-in support plate 73, the first clamping plate 74, the first moving groove 75, the first support spring 76, the anti-dropping wire 77, the rectangular contact block 78, the second moving groove 79, the second support spring 710, the limit slider 711, the limit sliding groove 712, the second sliding mechanism 8, the contact rod 81, the third moving groove 82, the anti-dropping mechanism, A third supporting spring 83, a trapezoidal contact block 84, a second clamping plate 85, a fourth supporting spring 86 and a supporting through hole 87.

Detailed Description

The invention will be further illustrated with reference to the following figures 1 to 7 and examples:

a motor structure comprises an upper shell 1 and a lower shell 2, wherein the upper shell 1 and the lower shell 2 are detachably arranged, the upper shell 1 and the lower shell 2 are fixedly connected through a fixing plate 41, the structure of the existing motor shell is optimized, the optimized motor shell is converted into a detachable structure from an integrated structure, and therefore when a motor is damaged and needs to be maintained, the effects of high efficiency and light operation can be achieved through convenient and fast disassembly and assembly.

In this embodiment, the fixing mechanism 4 includes a fixing plate 41 and a fixing groove 42, the fixing plate 41 is fixedly disposed on the outer sidewall of the lower housing 2, and the fixing plate 41 is provided with a first fixing hole 44, the fixing groove 42 is fixedly disposed on the outer sidewall of the upper housing 1, and the fixing groove 42 is provided with a second fixing hole 45, the same fixing bolt 46 is movably inserted in the first fixing hole 44 and the second fixing hole 45, and the fixing bolt 46 is externally threaded with a fixing nut 47, and the fixing plate 41 and the fixing groove 42 are connected by a plurality of limiting support mechanisms 43, in the present invention, by additionally providing the fixing mechanism 4 on the upper housing 1 and the lower housing 2, the fixing mechanism 4 is disposed for fixedly connecting the upper housing 1 and the lower housing 2, and the structural design of the fixing mechanism 4 is reasonable, so as to ensure the stable fixation of the upper housing 1 and the lower housing 2, and at the same time, the effect of convenient operation can be achieved during operation.

In this embodiment, the limiting support mechanism 43 includes a limiting support rod 431, a limiting support cylinder 432 and a limiting support spring 433, the activity of the limiting support rod 431 is inserted in the limiting support cylinder 432, the limiting support spring 433 is wound and connected outside the limiting support rod 431, and the two ends of the limiting support spring 433 are respectively fixedly connected on the side wall of the limiting support rod 431 and the outer side wall of the limiting support cylinder 432, the limiting support mechanism 43 is arranged, which can not only play a limiting role for the movement of the fixing groove 42, but also can keep the supporting role for the state of the fixing groove 42.

In the embodiment, the sealing mechanism 3 is arranged between the upper casing 1 and the lower casing 2, the sealing mechanism 3 comprises the sealing ring 31 and the sealing groove 32, the sealing ring 31 is movably inserted into the sealing groove 32, the sealing ring 31 is fixedly arranged on the lower end face of the upper casing 1, and the sealing groove 32 is arranged on the upper end face of the lower casing 2.

In this embodiment, the fixing groove 42 is internally provided with the buffer mechanism 6, which includes a third fixing hole 61, a guide support assembly 62 and a buffer moving plate 63, the buffer moving plate 63 is movably disposed in the fixing groove 42, the lower end surface of the buffer moving plate 63 is fixedly connected with a plurality of guide support assemblies 62, the free end of each guide support assembly 62 is fixedly connected to the inner bottom wall of the fixing groove 42, and the buffer moving plate 63 is provided with a plurality of third fixing holes 61.

In this embodiment, the guiding support assembly 62 includes a guiding support rod 621, a guiding support cylinder 622 and a guiding support spring 623, the guiding support rod 621 is movably inserted in the guiding support cylinder 622, the guiding support spring 623 is wound outside the guiding support rod 621, and two ends of the guiding support spring 623 are respectively and fixedly connected to the side wall of the guiding support rod 621 and the outer side wall of the guiding support cylinder 622, the guiding support assembly 62 is arranged, which not only can play a guiding support role for the movement of the buffering moving plate 63, but also can provide power for the reset movement of the buffering moving plate 63.

In this embodiment, a first anti-falling mechanism 7 is disposed in the fixing mechanism 4, the first anti-falling mechanism 7 includes a first through hole 71 and a second through hole 72, the first through hole 71 is disposed on the buffer moving plate 63, the second through hole 72 is disposed on the fixing groove 42, the fixing plate 41 is disposed with an insertion support plate 73 matching with the first through hole 71, the insertion support plate 73 is disposed with a first moving groove 75 and a second moving groove 79, the first moving groove 75 and the second moving groove 79 are disposed in a communicating manner, the first moving groove 75 is movably disposed with a first clamping plate 74, a side wall of the first clamping plate 74 is fixedly connected with a first support spring 76, a free end of the first support spring 76 is fixedly connected to a side wall of the first moving groove 75, two side walls of the first clamping plate 74 are fixedly connected with limit sliders 711, and the limit sliders 711 are slidably disposed in a limit sliding groove 712 disposed on the insertion support plate 73, the lower end face of the first clamping plate 74 is fixedly connected with a traction steel rope 77, the free end of the traction steel rope 77 is fixedly connected to the upper end face of the rectangular contact block 78, the rectangular contact block 78 is arranged in the second moving groove 79 in a sliding mode, the bottom wall of the second moving groove 79 is fixedly connected with a second supporting spring 710, the upper end of the second supporting spring 710 is fixedly connected to the rectangular contact block 78, the aperture of the first through hole 71 is smaller than that of the second through hole 72, the first anti-disengaging mechanism 7 is additionally arranged in the buffer plate, the first anti-disengaging mechanism 7 is used for assisting the fixing mechanism 4 to fix the upper casing 1 and the lower casing 2, and particularly, after the fixing mechanism 4 fixes the upper casing 1 and the lower casing 2, the first anti-disengaging mechanism 7 is arranged, and the buffer moving plate 63 can be prevented from upwards resetting in the fixing groove 42 through limiting clamping action.

In this embodiment, a second anti-separation mechanism 8 is disposed in the first anti-separation mechanism 7, the second anti-separation mechanism 8 includes a contact rod 81 and a third moving groove 82, the contact rod 81 is movably inserted into the third moving groove 82 formed in the inserting support plate 73, the contact rod 81 is wound and connected with a third support spring 83, two ends of the third support spring 83 are respectively fixedly connected to the sidewall of the contact rod 81 and the sidewall of the third moving groove 82, the lower end of the contact rod 81 is fixedly connected with a trapezoidal contact block 84, a second clamping plate 85 is slidably disposed in the third moving groove 82, the sidewall of the second clamping plate 85 is fixedly connected with a plurality of fourth support springs 86, the free ends of the fourth support springs 86 are fixedly connected to the sidewall of the third moving groove 82, a support through hole 87 communicated with the second through hole 72 is formed in the fixing groove 42, the second anti-separation mechanism 8 is additionally disposed in the present invention, second anti-disengaging mechanism 8's setting for supplementary fixed establishment 4 realizes the fixed to upper casing 1 and lower casing 2, specifically, fixed establishment 4 is after fixed to upper casing 1 and lower casing 2, and relative motion can be prevented from taking place between fixed plate 41 and the fixed slot 42 in the setting of second anti-disengaging mechanism 8, the spacing conflict effect of accessible, thereby ensures that upper casing 1 and lower casing 2 are fixed more firmly.

The working principle of the invention comprises the following processes:

when the upper casing 1 and the lower casing 2 need to be assembled, the fixing bolt 46 is firstly inserted into the first fixing hole 44, then the lower casing 2 is placed on the workbench, then the upper casing 1 is pressed downwards, the downward movement of the upper casing 1 can drive the fixing groove 42 to move downwards, and in the process of downward movement of the fixing groove 42, one side of the fixing bolt 46 can pass through the second fixing hole 45 and the third fixing hole 61; after the upper machine shell 1 is contacted with the lower machine shell 2, the fixing nut 47 is sleeved on the fixing bolt 46 in a threaded manner, and the fixing nut 47 is screwed, so that the fixing nut 47 moves downwards relative to the fixing bolt 46; in this process, the inserting support plate 73 passes through the second through hole 72 and the first through hole 71 in sequence;

along with the continuous downward movement of the fixing nut 47, the buffer moving plate 63 is extruded to move towards the inside of the fixing groove 42, and the downward movement of the buffer moving plate 63 pushes the abutting rod 81 to move downwards relative to the plug-in support plate 73, on one hand, the movement of the abutting rod 81 drives the trapezoidal abutting block 84 to move downwards, the downward movement of the trapezoidal abutting block 84 pushes the second clamping plate 85 to move towards the outside of the third moving groove 82, and along with the continuous movement of the second clamping plate 85, the trapezoidal abutting block enters the support through hole 87, so that the current position of the plug-in support plate 73 relative to the fixing groove 42 can be locked through the combined action of the second clamping plate 85 and the support through hole 87; on the other hand, with the downward movement of the buffer moving plate 63, the rectangular contact block 78 is pushed to move downward relative to the insertion support plate 73, the downward movement of the rectangular contact block 78 pulls the first clamping plate 74 to move out of the first moving groove 75 through the traction steel rope 77, and with the continuous movement of the first clamping plate 74, the rectangular contact block moves out of the first moving groove 75, so that the buffer moving plate 63 is clamped in a limiting manner, and the buffer moving plate 63 can be prevented from moving back; in summary, the upper casing 1 and the lower casing 2 can be fixed together by the fixing mechanism 4; through the setting of first anti-disengaging mechanism 7 and 8 integrated configuration of second anti-disengaging mechanism, can prevent the not hard up process that fixing bolt 46 and fixation nut 47 took place, ensure the life-span of motor casing use after the improvement more for a long time like this.

The invention has the beneficial effects that:

according to the invention, the structure of the existing motor shell is optimized, and the optimized motor shell is converted into a detachable structure from an integrated structure, so that when the motor is damaged and needs to be maintained, the effects of high efficiency and light operation can be achieved through convenient disassembly and assembly.

According to the invention, the fixing mechanism 4 is additionally arranged on the upper casing 1 and the lower casing 2, the fixing mechanism 4 is used for fixedly connecting the upper casing 1 and the lower casing 2, and the fixing mechanism 4 is reasonable in structural design, so that the upper casing 1 and the lower casing 2 can be stably fixed, and meanwhile, the effect of convenient operation can be achieved during operation.

According to the invention, the sealing mechanism 3 is additionally arranged between the upper casing 1 and the lower casing 2, the sealing performance between the upper casing 1 and the lower casing 2 can be ensured due to the arrangement of the sealing mechanism 3, and the sealing mechanism 3 is arranged in a built-in structure, so that the rapid aging of the sealing mechanism 3 can be avoided, and the service life of the sealing mechanism 3 can be prolonged.

The buffer mechanism 6 is additionally arranged in the fixing groove 42, the buffer mechanism 6 can play a buffer role, and particularly, the buffer mechanism 6 is arranged in order to avoid rigid extrusion force to the fixing groove 42 in the process of fixing the combined structure of the fixing bolt 46 and the fixing nut 47.

The first anti-falling mechanism 7 is additionally arranged in the invention, and the arrangement of the first anti-falling mechanism 7 is used for assisting the fixing mechanism 4 to fix the upper casing 1 and the lower casing 2, specifically, after the fixing mechanism 4 fixes the upper casing 1 and the lower casing 2, the arrangement of the first anti-falling mechanism 7 can prevent the buffer moving plate 63 from doing reset motion upwards in the fixing groove 42 through the limiting clamping effect.

In the invention, the second anti-falling mechanism 8 is additionally arranged, the second anti-falling mechanism 8 is used for assisting the fixing mechanism 4 to fix the upper casing 1 and the lower casing 2, and particularly, after the fixing mechanism 4 fixes the upper casing 1 and the lower casing 2, the second anti-falling mechanism 8 can prevent the fixed plate 41 and the fixed groove 42 from moving relatively through the limiting and abutting effect, so that the upper casing 1 and the lower casing 2 are fixed more firmly.

The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.