CN107269667B

CN107269667B - Motor anti-theft bolt and dismantling tool thereof

Info

Publication number: CN107269667B
Application number: CN201710564987.3A
Authority: CN
Inventors: 冷世文
Original assignee: Hubei Erdian Electric Co ltd
Current assignee: Hubei Erdian Electric Co ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2022-09-23
Anticipated expiration: 2037-07-12
Also published as: CN107269667A

Abstract

The invention provides a motor anti-theft bolt and a dismantling tool thereof, belonging to the technical field of electromechanical equipment. It has solved current motor inner core technical problem such as easily stolen. The utility model provides a motor theftproof bolt, connecting screw's outer tip has a dismouting head, outer end open-ended dismouting hole has in the dismouting head, the transversal square of personally submitting in dismouting hole, a locking hole has been seted up on four inner walls of mounting hole respectively, the downthehole unblock bolt that is the T type that is equipped with of locking, the outer end in dismouting hole has a locating part, this demolish instrument includes that pull rod and cover establish the fixed cover outside the pull rod, link to each other through the bearing between fixed cover and the pull rod, this demolish instrument still includes the connecting rod of four C types, the one end of connecting rod articulates on the pull rod, the middle part of connecting rod has the spout, fixed being provided with the locating pin with the spout one-to-one on the fixed cover, the locating pin is inserted and is established in the spout that corresponds. The invention has the advantages of simple structure, high anti-theft coefficient and the like.

Description

Motor anti-theft bolt and dismantling tool thereof

Technical Field

The invention belongs to the technical field of electromechanical equipment, and relates to a motor anti-theft bolt and a dismantling tool thereof.

Background

Due to the fact that a large motor is heavy in shell, a lawless person hopes to obtain a copper core inside the motor by dismantling the shell of the motor so as to gain profits.

As a motor for an electromechanical device in a public place, theft prevention is inevitable examination and requirement.

Disclosure of Invention

The invention aims to provide an anti-theft bolt for a motor aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to achieve the effect of preventing disassembly through the design of the bolt.

The purpose of the invention can be realized by the following technical scheme: an anti-theft bolt for a motor is characterized by comprising a connecting screw rod, wherein the outer end part of the connecting screw rod is provided with a dismounting head, the dismounting head is internally provided with a dismounting hole with an opening at the outer end, the cross section of the dismounting hole is square, four inner walls of the dismounting hole are respectively provided with a locking hole, a T-shaped unlocking bolt is inserted in the locking hole, the inner end of the unlocking bolt is provided with an unlocking inclined plane which forms an acute angle with the axis of the connecting screw rod, the outer end of the dismounting hole is provided with a positioning part, the aperture of the positioning part is larger than that of the dismounting hole, the dismounting head is sleeved with a locking cap, the inner wall of the locking cap is provided with four positioning bulges which correspond to the positioning parts one by one, the positioning bulges are inserted in the corresponding positioning parts, the connecting screw rod is sleeved with an anti-dismounting baffle, and the anti-dismounting baffle is provided with a retainer ring which shields the opening of the locking cap and is positioned outside the locking cap, a gap with the thickness larger than that of the positioning protrusion is formed between the retainer ring and the outer wall of the locking cap; a through hole is formed in the outer side face of the locking cap.

A connecting screw for fixing cover and organism, under the parcel of locking cap, can't be opened easily, and the locking cap is fixed on the dismouting head of connecting screw outer end through the cooperation of protruding and location portion of location, wants to open connecting screw, must open the locking cap, and it must be through inserting the downthehole specialized tool of dismouting with four unblock bolts ejecting can to open the locking cap.

In the anti-theft bolt for the motor, the inner wall of the dismounting hole is provided with a dismounting inner hexagon positioned at the inner side of the locking hole.

In the anti-theft bolt for the motor, the connecting screw rod is provided with a longitudinal positioning hole, an opening of the longitudinal positioning hole faces the dismounting hole, and a positioning spring is arranged in the longitudinal positioning hole.

In the above-mentioned motor anti-theft bolt, a circumferential locating hole is arranged on the outer side wall of the locking cap, and a weakening ring groove is arranged on the inner side wall of the locking cap. The weakening ring groove is used for increasing the elastic expansion range of the outer end of the locking cap.

The second purpose of the present invention is to provide a dismantling tool for motor anti-theft bolts, which aims to solve the technical problem of how to conveniently dismantle anti-theft bolts by using special tools.

The utility model provides a demolition tool of motor theftproof bolt, its characterized in that, this demolition tool include the pull rod and overlap the fixed cover of establishing outside the pull rod, fixed cover with link to each other through the bearing between the pull rod, this demolition tool still includes the connecting rod of four C types, the one end of connecting rod articulates on the pull rod, the middle part of connecting rod has the spout, fixed being provided with on the fixed locating pin with spout one-to-one, the locating pin is inserted and is established in the spout that corresponds.

In foretell demolition tool of motor anti-theft bolt, the fixed limiting plate that is provided with on the pull rod, there is a backplate through splined connection on the pull rod, be connected with a pressure spring between limiting plate and the backplate, a plurality of axial positioning holes have been seted up on the terminal surface in the outside of fixed cover, be provided with on the backplate and insert the reference column of establishing in the axial positioning hole, there is a circumference locating plate through splined connection on the fixed plate, be provided with a locating piece on the circumference locating plate.

The pull rod and the fixed cover are inserted into the through hole, the pull rod is inserted into the longitudinal positioning hole, the fixed cover is rotated, the connecting rod extends out of the fixed cover, the guard plate is pulled, the positioning column is inserted into the positioning hole, the fixed cover is pulled outwards, the outer end of the connecting rod is used for driving the unlocking bolt to move outwards, and the locking cap can be removed.

Wherein, longitudinal positioning hole can fix a position the pull rod, and positioning spring can provide the helping hand for the pull rod, ensures to be in the state of compressing tightly between connecting rod and the unblock bolt, can not relax.

The unblock bolt can prevent directly to use the hexagonal spanner to open dismouting allen key to destroy dismouting allen key.

As another scheme:

the dismantling tool for the motor anti-theft bolt is characterized by comprising four press feet and a pull tube, wherein the pull tube is connected with the four press feet through an elastic part, the press feet, the pull tube and the elastic part are integrally formed, a vertical plate extends out of the outer end of each press foot, a supporting rod is inserted into the pull tube, a supporting plate is fixedly arranged at one end of the supporting rod, and the supporting plate is located on the inner sides of the four press feet.

Draw the bracing piece outwards, make the riser be located the inboard of presser foot, push down the presser foot, make it stretch into in the through-hole, it is rotatory to the alternate position of unblock bolt, stretch into the inboard of leading unblock bolt with the presser foot, it makes the backup pad support presser foot not contract to the inboard to promote the bracing piece, ensure that the position of presser foot is not in the position that is compressed tightly by the unblock bolt, the elastic component is one from trompil department to presser foot one side indent, to the bellied curved surface form in trompil one side, directly stimulate the backup pad, order about the elastic component and tend to straight, the outer end of presser foot has outside tension, ensure to be in the state of compressing tightly between riser and the unblock bolt, can directly extract the locking cap after moving the unblock bolt outward.

Drawings

Fig. 1 is a schematic view of the installation position of a motor anti-theft bolt in a motor.

Fig. 2 is a schematic view of a rotating structure between the motor anti-theft bolt and the dismantling tool in the first embodiment.

FIG. 3 is a schematic structural diagram of a demolition tool according to one embodiment.

Fig. 4 is a schematic structural diagram of a motor antitheft bolt in the first embodiment.

FIG. 5 is a schematic view of a link in a contracted state according to an embodiment.

FIG. 6 is a schematic view of the linkage of the first embodiment in an open position.

Fig. 7 is a sectional view in the direction a in fig. 3.

Fig. 8 is a schematic structural view of a demolition tool according to a second embodiment.

In the figure, 1, a connecting screw rod; 2. disassembling the head; 21. disassembling and assembling holes; 22. a locking hole; 23. unlocking the bolt; 24. unlocking the inclined plane; 25. a positioning part; 26. a locking cap; 27. positioning a projection; 28. a tamper-evident barrier; 29. a retainer ring; 31. a through hole; 32. disassembling the inner hexagon; 41. longitudinal positioning holes; 42. a positioning spring; 43. circumferential positioning holes; 44. weakening the ring groove; 45. a pull rod; 46. fixing a sleeve; 47. a connecting rod; 48. a chute; 49. positioning pins; 51. a limiting plate; 52. a guard plate; 53. a compression spring; 54. axially positioning the hole; 55. a positioning column; 56. a circumferential positioning plate; 57. positioning blocks; 61. a presser foot; 62. pulling the tube; 63. an elastic portion; 64. a vertical plate; 65. a support bar; 66. and a support plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, 2 and 4, the motor anti-theft bolt includes a connecting screw rod 1, the outer end of the connecting screw rod 1 has a dismounting head 2, the dismounting head 2 has a dismounting hole 21 with an outer end opening, the cross section of the dismounting hole 21 is square, four inner walls of the dismounting hole are respectively provided with a locking hole 22, the locking hole 22 is inserted with a T-shaped unlocking bolt 23, the inner end of the unlocking bolt 23 has an unlocking inclined plane 24 forming an acute angle with the axis of the connecting screw rod 1, the outer end of the dismounting hole 21 has a positioning portion 25, the aperture of the positioning portion 25 is larger than the aperture of the dismounting hole 21, the dismounting head 2 is sleeved with a locking cap 26, the inner wall of the locking cap 26 has four positioning protrusions 27 corresponding to the positioning portions 25 one by one, the positioning protrusions 27 are inserted in the corresponding positioning portions 25, the connecting screw rod 1 is sleeved with an anti-dismounting baffle 28, the anti-dismounting baffle 28 has a retainer ring 29 for shielding the opening of the locking cap 26 and locating outside the locking cap 26, a clearance larger than the thickness of the positioning projection 27 is formed between the retainer ring 29 and the outer wall of the locking cap 26; a through hole 31 is arranged on the outer side surface of the locking cap 26; the connecting screw 1 for fixing the cover and the machine body cannot be easily opened under the wrapping of the locking cap 26, the locking cap 26 is fixed on the disassembling and assembling head 2 at the outer end of the connecting screw 1 through the matching of the positioning bulge 27 and the positioning part 25, the locking cap 26 must be opened when the connecting screw 1 is required to be opened, and the four unlocking bolts 23 must be ejected out through a special tool inserted into the disassembling and assembling hole 21 when the locking cap 26 is opened.

The inner wall of the dismounting hole 21 is provided with a dismounting inner hexagon 32 positioned at the inner side of the locking hole 22; a longitudinal positioning hole 41 is formed in the connecting screw rod 1, the opening of the longitudinal positioning hole 41 faces the dismounting hole 21, and a positioning spring 42 is arranged in the longitudinal positioning hole 41; the outer side wall of the locking cap 26 is provided with a circumferential positioning hole 43, and the inner side wall of the locking cap 26 is provided with a weakening ring groove 44; the weakening groove 44 serves to increase the elastic expansion of the outer end of the locking cap 26.

As shown in fig. 2, 3, 5, 6 and 7, the demolition tool comprises a pull rod 45 and a fixing sleeve 46 sleeved outside the pull rod 45, the fixing sleeve 46 is connected with the pull rod 45 through a bearing, the demolition tool further comprises four C-shaped connecting rods 47, one ends of the connecting rods 47 are hinged on the pull rod 45, sliding grooves 48 are formed in the middle of the connecting rods 47, positioning pins 49 which correspond to the sliding grooves 48 one by one are fixedly arranged on the fixing sleeve 46, and the positioning pins 49 are inserted into the corresponding sliding grooves 48.

A limiting plate 51 is fixedly arranged on the pull rod 45, a protective plate 52 is connected to the pull rod 45 through a spline, a compression spring 53 is connected between the limiting plate 51 and the protective plate 52, a plurality of axial positioning holes 54 are formed in the end face of the outer side of the fixing sleeve 46, a positioning column 55 capable of being inserted into the axial positioning holes 54 is arranged on the protective plate 52, a circumferential positioning plate 56 is connected to the fixing plate through a spline, and a positioning block 57 is arranged on the circumferential positioning plate 56; the pull rod 45 and the fixing sleeve 46 are inserted into the through hole 31, the pull rod 45 is inserted into the longitudinal positioning hole 41, the fixing sleeve 46 is rotated to enable the connecting rod 47 to extend out of the fixing sleeve 46, the guard plate 52 is pulled to enable the positioning column 55 to be inserted into the positioning hole, the fixing sleeve 46 is pulled outwards, the unlocking bolt 23 is driven to move outwards by the outer end of the connecting rod 47, and the locking cap 26 can be removed.

The longitudinal positioning hole 41 can position the pull rod 45, and the positioning spring 42 can provide assistance for the pull rod 45, so that the connecting rod 47 and the unlocking bolt 23 are in a compressed state and cannot be loosened; the unlocking pin 23 can prevent the dismounting inner hexagon 32 from being opened by directly using a hexagonal wrench, thereby damaging the dismounting inner hexagon 32.

Example two

The content of this embodiment is substantially the same as the first embodiment, except that:

the dismounting tool comprises four press feet 61 and a pull tube 62, wherein the pull tube 62 is connected with the four press feet 61 through an elastic part 63, the press feet 61, the pull tube 62 and the elastic part 63 are integrated into a whole, a vertical plate 64 extends outwards from the outer end of the press feet 61, a support rod 65 is inserted in the pull tube 62, a support plate 66 is fixedly arranged at one end of the support rod 65, and the support plate 66 is positioned at the inner sides of the four press feet 61; the support rod 65 is pulled outwards to enable the vertical plate 64 to be located on the inner side of the presser foot 61, the presser foot 61 is pressed to enable the presser foot 61 to extend into the through hole 31 and rotate to the position where the unlocking bolts 23 are alternated, the presser foot 61 extends into the inner side of the unlocking bolts 23, the support rod 65 is pushed to enable the support plate 66 to support the presser foot 61 not to contract inwards, the position of the presser foot 61 is not in the position pressed by the unlocking bolts 23, the elastic part 63 is inwards concave towards one side of the presser foot 61 from the pull pipe 62, the support plate 66 is directly pulled towards the convex curved surface on one side of the pull pipe 62, the elastic part 63 is driven to be flat and tend to be flat, the outer end of the presser foot 61 has outward tension, the position between the vertical plate 64 and the unlocking bolts 23 is ensured to be in a pressing state, and the locking cap 26 can be directly pulled out after the unlocking bolts 23 are moved outwards.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The method for dismantling the dismantling tool of the motor anti-theft bolt is characterized in that the motor anti-theft bolt comprises a connecting screw rod (1), a dismantling head (2) is arranged at the outer end part of the connecting screw rod (1), a dismantling hole (21) with an outer end opening is formed in the dismantling head (2), the cross section of the dismantling hole (21) is square, locking holes (22) are respectively formed in four inner walls of the dismantling hole (21), a T-shaped unlocking bolt (23) is inserted into each locking hole (22), an unlocking inclined plane (24) forming an acute angle with the axis of the connecting screw rod (1) is formed in the inner end of each unlocking bolt (23), a positioning part (25) is arranged at the outer end of each dismantling hole (21), the aperture of each positioning part (25) is larger than that of the dismantling hole (21), and a locking cap (26) is sleeved on the dismantling head (2), the inner wall of the locking cap (26) is provided with four positioning protrusions (27) which correspond to the positioning portions (25) one by one, the positioning protrusions (27) are inserted into the corresponding positioning portions (25), the connecting screw rod (1) is sleeved with an anti-disassembly baffle (28), the anti-disassembly baffle (28) is provided with a check ring (29) which shields an opening of the locking cap (26) and is positioned on the outer side of the locking cap (26), and a gap larger than the thickness of the positioning protrusions (27) is formed between the check ring (29) and the outer wall of the locking cap (26); a through hole (31) is formed in the outer side surface of the locking cap (26);

the dismounting tool comprises four press feet (61) and a pull tube (62), the press feet (61) correspond to the unlocking bolts (23) one by one, the pull tube (62) can be inserted into the through hole (31), the pull tube (62) is connected with the four press feet (61) through an elastic part (63), the press feet (61), the pull tube (62) and the elastic part (63) are integrally formed, a vertical plate (64) extends outwards from the outer end of each press foot (61), a supporting rod (65) is inserted into the pull tube (62), a supporting plate (66) is fixedly arranged at one end of each supporting rod (65), and the supporting plate (66) is located on the inner sides of the four press feet (61);

the dismantling step is as follows: the support rod (65) is pulled outwards, the vertical plate is located on the inner side of the presser foot (61), the presser foot (61) is pressed, the presser foot (61) is made to extend into the through hole (31), the presser foot is rotated to the position where the unlocking bolts are alternated, the presser foot (61) is made to extend into the inner side of the guiding unlocking bolt, the support rod (65) is pushed, the support plate (66) is made to support the presser foot (61) and not to contract inwards, the position of the presser foot (61) is not at the position compressed by the unlocking bolt, the elastic part (63) is concave inwards towards one side of the presser foot from the pull tube (62), the curved surface protruding towards one side of the pull tube (62) directly pulls the support plate (66), the elastic part (63) is driven to be flat and straight, the outer end of the presser foot (61) has outward tension, the pressing state between the vertical plate and the unlocking bolt is ensured, the locking cap can be directly pulled out after the unlocking bolt is moved outwards, and the dismantling of the motor anti-theft bolt is completed.