CN213231403U

CN213231403U - Retractable holds in palm head

Info

Publication number: CN213231403U
Application number: CN202021913843.8U
Authority: CN
Inventors: 张建峰; 卢伟; 何恒钱
Original assignee: Zhejiang Dafeng Track Traffic Equipment Co ltd
Current assignee: Zhejiang Dafeng Track Traffic Equipment Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-05-18
Anticipated expiration: 2030-09-04

Abstract

The utility model provides a telescopic supporting head, which comprises a base fixed at the upper end of an external upright post, an outer shell fixed on the base and a supporting head arranged at one end of the outer shell, wherein an adjusting mechanism is arranged in the outer shell, and the adjusting mechanism is connected with the supporting head and is used for driving the supporting head to slide in the horizontal direction; the adjusting mechanism comprises a rotatable screw rod, a screw rod nut matched with the screw rod and a sliding plate arranged in the outer shell, the screw rod is in threaded connection with the screw rod nut, the screw rod nut is fixed on the sliding plate, and one end of the sliding plate is connected with the supporting head; during adjustment, the screw rod rotates and drives the screw rod nut to slide, so that the sliding plate drives the supporting head to slide. The utility model provides a pair of retractable holds in palm head has overcome current car lifting jack support head can not stretch out and draw back and the narrow defect of application scope.

Description

Retractable holds in palm head

Technical Field

The utility model relates to a car lifting jack field especially relates to a retractable holds in palm head.

Background

With the rapid development of cities, rail transit is greatly developed. In order to ensure the safety of rail traffic, after the rail vehicle runs for a period of time, the wheel sets in the bogies and other parts at the bottom of the train need to be overhauled or replaced, and when in maintenance, the whole train of grouped vehicles need to be lifted to a certain height so as to replace the bogies and other parts at the bottom of the vehicles. During maintenance, the carriages of the vehicle are required to be lifted by the fixed lifting equipment or the crown block to be separated from the chassis, so that the vehicle is convenient to maintain, the maintained vehicle is often moved to a position, a plurality of fixed lifting equipment or crown blocks are required to be arranged in a maintenance workshop, the effective working use area of the workshop is reduced, the number of equipment is increased, particularly, when a plurality of sections of vehicles are required to be maintained, each carriage is required to be moved to the position, the maintenance time of the vehicles is long, the occupied equipment is more, the efficiency is low, the vehicles are easy to collide with due to lifting, the outer surfaces of the vehicles are damaged, certain potential safety hazards exist, the safety production is influenced, the maintenance cost is increased, and when the carriages are lifted or lowered by the fixed lifting equipment, the synchronous lifting or descending can not be really realized, and accidents are easy to happen.

The car lifting jack is equipment for lifting a car body from the bottom of the car body, and the car body cannot be damaged in the lifting process. The support head is generally arranged on the existing car lifting jack, the existing support head is fixedly arranged, the support head cannot stretch out and draw back, the car body has multiple models, the lifting position of the car body of each model is different, and how to enable the car lifting jack to adapt to different car body models becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a retractable support head is provided to overcome the defect that the support head of the existing car lifting jack can not be retracted and the application range is narrow.

(II) technical scheme

In order to solve the technical problem, the utility model provides a retractable support head, which comprises a base fixed at the upper end of an external upright post, an outer shell fixed on the base and a support head arranged at one end of the outer shell, wherein an adjusting mechanism is arranged in the outer shell, and the adjusting mechanism is connected with the support head and is used for driving the support head to slide in the horizontal direction; the adjusting mechanism comprises a rotatable screw rod, a screw rod nut matched with the screw rod and a sliding plate arranged in the outer shell, the screw rod is in threaded connection with the screw rod nut, the screw rod nut is fixed on the sliding plate, and one end of the sliding plate is connected with the supporting head; during adjustment, the screw rod rotates and drives the screw rod nut to slide, so that the sliding plate drives the supporting head to slide. This support head sets up adjustment mechanism and through the cooperation of lead screw, screw-nut and sliding plate, can use more nimble according to the position of the car type regulation support head of putting up during the use, and application scope is wider.

Further, the support head comprises a connecting block and a supporting plate, the connecting block is fixed at the upper end of the sliding plate, and the supporting plate is fixed on the connecting block. An induction device is arranged in the supporting head; the induction device comprises a support frame, a pressure rod and an induction head, wherein a first side plate is fixed at the end part of the sliding plate, the support frame is fixed on the first side plate, the pressure rod is installed on the support frame in a sliding mode, the head part of the pressure rod protrudes out of the supporting plate, and the induction head is fixed on the support frame and corresponds to the pressure rod. And a spring is arranged between the pressing rod and the supporting frame and sleeved on the pressing rod, and the spring always enables the pressing rod to move upwards.

Furthermore, a fixed plate is fixed on the base, supporting plates are symmetrically arranged at two ends of the fixed plate, and the sliding plate covers the supporting plates; a containing groove is formed between the two supporting plates in a surrounding manner, and a second side plate is fixed at the side end of each supporting plate; one end of the screw rod is rotatably arranged on the second side plate, and the other end of the screw rod is arranged in the accommodating groove. A cover plate is fixed on the second side plate, and a shaft shoulder part is arranged between the second side plate and the cover plate by the screw rod; the outer side of the shaft shoulder portion is provided with a screwing portion, and the screwing portion protrudes out of the cover plate. The shaft sleeve is sleeved between the screw rod and the second side plate, and a base plate is arranged between the supporting plate and the fixing plate.

(III) advantageous effects

The utility model provides a retractable support head, set up adjustment mechanism and through the cooperation of lead screw, screw-nut and sliding plate, rotate the lead screw during regulation, the lead screw drives screw-nut and slides, screw-nut drives the sliding plate and slides, thereby the sliding plate drives the support head and slides on the horizontal direction, can adjust the position of support head according to the car type of putting up when using, use more nimble, application scope is wider; the overall structure is simple, the structure is stable and reliable, the position of the supporting head can be directly adjusted through the screwing part, the use is simple, and the operation is convenient; the defects that the existing car lifting jack support head cannot stretch out and draw back and the application range is narrow are overcome.

Drawings

Fig. 1 is a perspective view of a retractable head of the present invention;

fig. 2 is an exploded view of a retractable head of the present invention;

fig. 3 is a schematic structural view of a retractable head of the present invention;

fig. 4 is a perspective view of the retractable support head of the present invention after the outer shell is removed;

fig. 5 is a perspective view of the retractable head-supporting sensing device of the present invention;

fig. 6 is a perspective view of a retractable head adjusting mechanism of the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. a column; 2. a base; 3. an outer housing; 4. supporting a head; 5. a screw rod; 6. a feed screw nut; 7. a sliding plate; 8. connecting blocks; 9. a support plate; 10. a support frame; 11. a pressure lever; 12. an inductive head; 13. a first side plate; 14. a spring; 15. a fixing plate; 16. a support plate; 17. a containing groove; 18. a second side plate; 19. a cover plate; 20. a shaft shoulder; 21. a screwing part; 22. a shaft sleeve; 23. a backing plate.

Detailed Description

The following detailed description of the embodiments of the present invention is provided 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.

Referring to fig. 1 to 6, the utility model provides a retractable holds in palm head, including fixing base 2 in outside stand 1 upper end, fixing shell body 3 on base 2 and installing the support head 4 in shell body 3 one end, be provided with adjustment mechanism in the shell body 3, adjustment mechanism is connected with support head 4 and is used for driving support head 4 and slides on the horizontal direction. The adjusting mechanism comprises a rotatable lead screw 5, a lead screw nut 6 matched with the lead screw 5 and a sliding plate 7 arranged in the outer shell 3, the lead screw 5 is in threaded connection with the lead screw nut 6, the lead screw nut 6 is fixed on the sliding plate 7, and one end of the sliding plate 7 is connected with the supporting head 4. This support head sets up adjustment mechanism and through the cooperation of lead screw, screw-nut and sliding plate, can use more nimble according to the position of the car type regulation support head of putting up during the use, and application scope is wider.

Referring to fig. 2, 3 and 5, the support head 4 includes a connection block 8 and a support plate 9, the connection block 8 is fixed on the upper end of the sliding plate 7, and the support plate 9 is fixed on the connection block 8. An induction device is arranged in the support head 4 and is used for detecting whether the support head 4 bears the load or not. The induction device comprises a support frame 10, a compression bar 11 and an induction head 12, a first side plate 13 is fixed at the end part of the sliding plate 7, the support frame 10 is fixed on the first side plate 13, the compression bar 11 is slidably mounted on the support frame 10, the head part of the compression bar 11 protrudes out of the supporting plate 9, and the induction head 12 is fixed on the support frame 10 and is arranged corresponding to the compression bar 11. A spring 14 is arranged between the pressing rod 11 and the supporting frame 10, the spring 14 is sleeved on the pressing rod 11, and the spring 14 enables the pressing rod 11 to move upwards all the time, so that the pressing rod 11 is convenient to reset. When the support head 4 works, the supported object can press down the head of the pressure lever 11, the pressure lever 11 slides down, and the lower part of the pressure lever can press down the induction head 12, so that the support head 4 is detected to be loaded.

Referring to fig. 3, 4 and 6, a fixed plate 15 is fixed on the base 2, support plates 16 are symmetrically arranged at two ends of the fixed plate 15, and the sliding plate 7 covers the support plates 16; a containing groove 17 is formed between the two supporting plates 16, and a second side plate 18 is fixed at the side end of each supporting plate 16; one end of the screw rod 5 is rotatably arranged on the second side plate 18, and the other end is arranged in the accommodating groove 17. A cover plate 19 is fixed on the second side plate 18, a shaft shoulder 20 is arranged between the second side plate 18 and the cover plate 19 of the screw rod 5, and the screw rod 5 is limited between the second side plate 18 and the cover plate 19 through the shaft shoulder 20. The outer side of the shaft shoulder 20 is provided with a screwing part 21, and the screwing part 21 protrudes out of the cover plate 19 to facilitate screwing. A shaft sleeve 22 is sleeved between the screw rod 5 and the second side plate 18, so that the service life is prolonged; the backing plate 23 is arranged between the supporting plate 16 and the fixing plate 15, and the structure is more reliable.

During adjustment, the screw rod 5 is rotated by the screwing part 21, the screw rod 5 rotates to drive the screw rod nut 6 to slide, the screw rod nut 6 drives the sliding plate 7 to slide, and the sliding plate 7 drives the support head 4 to slide in the horizontal direction.

The telescopic support head provided by the embodiment has the advantages of simple integral structure, stable and reliable structure, simple use and convenient operation, and the position of the support head can be directly adjusted through the screwing part; the adjusting mechanism is arranged, the screw rod is rotated through the matching of the screw rod, the screw rod nut and the sliding plate during adjustment, the screw rod drives the screw rod nut to slide, the screw rod nut drives the sliding plate to slide, the sliding plate drives the supporting head to slide in the horizontal direction, the position of the supporting head can be adjusted according to the vehicle type of the vehicle to be erected during use, and the adjusting mechanism is more flexible to use and wider in application range.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a retractable holds in palm head which characterized in that: the device comprises a base (2) fixed at the upper end of an external upright post (1), an outer shell (3) fixed on the base (2) and a supporting head (4) arranged at one end of the outer shell (3), wherein an adjusting mechanism is arranged in the outer shell (3), and the adjusting mechanism is connected with the supporting head (4) and is used for driving the supporting head (4) to slide in the horizontal direction; the adjusting mechanism comprises a sliding plate (7) arranged in the outer shell (3), and one end of the sliding plate (7) is connected with the supporting head (4); when in adjustment, the sliding plate (7) slides and drives the support head (4) to slide.

2. The retractable head as set forth in claim 1, wherein: the adjusting mechanism further comprises a rotatable lead screw (5) and a lead screw nut (6) matched with the lead screw (5), the lead screw (5) is in threaded connection with the lead screw nut (6), and the lead screw nut (6) is fixed on the sliding plate (7).

3. The retractable head as set forth in claim 1, wherein: the support head (4) comprises a connecting block (8) and a supporting plate (9), the connecting block (8) is fixed at the upper end of the sliding plate (7), and the supporting plate (9) is fixed on the connecting block (8).

4. The retractable head as set forth in claim 3, wherein: an induction device is arranged in the supporting head (4); the induction device comprises a support frame (10), a pressure lever (11) and an induction head (12), a first side plate (13) is fixed at the end part of the sliding plate (7), the support frame (10) is fixed on the first side plate (13), the pressure lever (11) is slidably mounted on the support frame (10), the head of the pressure lever (11) protrudes out of the supporting plate (9), and the induction head (12) is fixed on the support frame (10) and corresponds to the pressure lever (11).

5. The retractable head as set forth in claim 4, wherein: a spring (14) is installed between the pressing rod (11) and the supporting frame (10), the spring (14) is sleeved on the pressing rod (11), and the spring (14) always enables the pressing rod (11) to move upwards.

6. The retractable head as set forth in claim 2, wherein: a fixed plate (15) is fixed on the base (2), supporting plates (16) are symmetrically arranged at two ends of the fixed plate (15), and the sliding plate (7) covers the supporting plates (16); a containing groove (17) is defined between the two supporting plates (16), and a second side plate (18) is fixed at the side end of each supporting plate (16); one end of the screw rod (5) is rotatably arranged on the second side plate (18), and the other end of the screw rod is arranged in the accommodating groove (17).

7. The retractable head as set forth in claim 6, wherein: a cover plate (19) is fixed on the second side plate (18), and a shaft shoulder (20) is arranged between the second side plate (18) and the cover plate (19) of the screw rod (5); and a screwing part (21) is arranged on the outer side of the shaft shoulder part (20), and the screwing part (21) protrudes out of the cover plate (19).

8. The retractable head as set forth in claim 6, wherein: a shaft sleeve (22) is sleeved between the screw rod (5) and the second side plate (18).

9. The retractable head as set forth in claim 6, wherein: a backing plate (23) is arranged between the supporting plate (16) and the fixing plate (15).