CN222544713U

CN222544713U - A square laser detector for turnout

Info

Publication number: CN222544713U
Application number: CN202421397279.7U
Authority: CN
Inventors: 曹峰; 郑飞; 石峰; 于潇; 张乐; 曹媛
Original assignee: Shandong Youyuan Electronic Technology Co ltd
Current assignee: Shandong Youyuan Electronic Technology Co ltd
Priority date: 2024-06-19
Filing date: 2024-06-19
Publication date: 2025-02-28
Anticipated expiration: 2034-06-19

Abstract

The utility model relates to the technical field of turnout squareness detection, and in particular, a turnout squareness laser detector, including a mounting plate, a slide rail group fixedly connected to the middle of the top surface of the mounting plate along its length direction, a slide plate movably mounted on the slide rail group, support plates vertically fixedly connected to the tops of both ends of the slide plate, coaxially provided with rotation holes at corresponding positions of the upper ends of the two support plates, and a rotating shaft, the shaft bodies on the left and right sides of the rotating shaft are movably inserted into the rotation holes of the support plates at corresponding positions, a laser assembly is fixedly provided on the top of the middle section of the rotating shaft, a counterweight assembly is fixedly provided on the bottom of the middle section of the rotating shaft, clamping assemblies for clamping the corresponding ends of the rotating shaft are provided on the tops of the left and right ends of the mounting plate, and a positioning assembly is provided at the bottom of the mounting plate. The utility model has the following beneficial effects: automatic leveling is achieved, operation efficiency is improved, and detection accuracy is improved at the same time.

Description

Square laser detector for turnout

Technical Field

The utility model relates to the technical field of square detection of turnout points, in particular to a square laser detector of turnout points.

Background

The turnout is a line connection device for enabling a motor vehicle to be transferred from one track to another track, and in order to ensure square correction of the turnout in the process of installation completion and subsequent maintenance, a railway square is required to be used for detecting the turnout, however, the convenience of carrying and operating is low because the length of the square is nearly two meters. In order to improve convenience, the conventional method for detecting the square of the turnout by laser gradually starts to be applied.

For example, patent document CN205856948U discloses an infrared switch square measuring instrument, which comprises a laser level, a steering plate, a right-angle flat plate, a stud bolt, a horizontal adjusting screw, a parallel adjusting screw, a vertical positioning pointer and a magnet, wherein the stud bolt respectively passes through a convex through hole on the steering plate and a convex through hole on the right-angle flat plate to be connected together by nuts, and a threaded hole of a base of the laser level is connected with the stud bolt to fix the laser level on the steering plate.

According to the prior art document, the measuring instrument is adsorbed on the steel rail through the magnet so as to realize the fixation of the whole structure, and then the measuring instrument can be leveled through the adjustment of the horizontal adjusting screw and the parallel adjusting screw, so that the accuracy of laser measurement is ensured. However, in the leveling process, the leveling efficiency is low because the leveling screw and the parallel adjusting screw are required to be adjusted manually and repeatedly, and the leveling operation is not easy to be performed under the adsorption action of the magnet.

Therefore, the utility model optimizes and improves the problems of low leveling operation efficiency and low convenience in the prior art, and therefore provides a novel detector capable of automatically and rapidly and accurately performing leveling operation, which is used for better solving the problems in the prior art.

Disclosure of utility model

The utility model aims to solve one of the technical problems, and adopts the technical scheme that the turnout square laser detector comprises a mounting plate, wherein the middle part of the top surface of the mounting plate is fixedly connected with a sliding rail set along the length direction of the mounting plate, sliding plates are movably mounted on the sliding rail set, the tops of two ends of the sliding plates are respectively and vertically fixedly connected with support plates, corresponding positions of the upper ends of the two support plates are respectively and coaxially provided with a rotating hole, the turnout square laser detector also comprises a rotating shaft, shaft bodies on the left side and the right side of the rotating shaft are respectively and movably inserted into the rotating holes of the support plates at the corresponding positions, the top of the middle section of the rotating shaft is fixedly provided with a laser component, the bottom of the middle section of the rotating shaft is fixedly provided with a counterweight component, the tops of the left side and the right side of the mounting plate are respectively provided with clamping components for clamping the corresponding ends of the rotating shaft, and the bottom of the mounting plate is provided with a positioning component.

In any of the above schemes, preferably, the clamping assembly comprises a connecting frame, an installation space is formed in the middle of the connecting frame, telescopic clamping pieces are respectively arranged at two side positions of the installation space along the horizontal direction, the two telescopic clamping pieces are symmetrically arranged about the vertical center line of the connecting frame, and the inner ends of the two telescopic clamping pieces are used for clamping the end parts of the rotating shaft.

In any of the above schemes, preferably, the telescopic clamping piece comprises a telescopic cylinder, a fixed end of the telescopic cylinder is fixedly connected to a vertical inner side wall at a corresponding position of the connecting frame, a telescopic end of the telescopic cylinder horizontally extends to the middle of the installation space, a clamping block is fixedly connected to the end part of the telescopic end of the telescopic cylinder, a semicircular pressing groove is formed in the side part of the inner side of the clamping block, and the surface of the semicircular pressing groove is attached to and pressed at a corresponding position of the circumferential outer surface of the end part of the rotating shaft in a clamping state.

In any of the above solutions, preferably, the counterweight assembly includes a connecting rod, an upper end of the connecting rod is fixedly connected to a bottom of a circumferential outer surface of the middle section of the rotating shaft, and a counterweight is integrally formed at a lower end of the connecting rod.

In any of the above schemes, preferably, the laser assembly includes a first connection plate, a plurality of second connection plates are fixedly connected at intervals at the bottom of the first connection plate, the mounting holes of the second connection plates are respectively fixedly sleeved at corresponding positions on the circumferential outer surface of the rotating shaft, a controller is fixedly mounted at the top of the first connection plate, a laser emitter is fixedly mounted at the top of the controller, and a switch is fixedly arranged at one side of the top of the controller.

In any of the above schemes, preferably, the positioning assembly includes a plurality of magnets, a plurality of mounting grooves are spaced apart from each other at the bottom of the mounting plate, each of the magnets is respectively disposed in an inner cavity of a corresponding mounting groove, and a cover plate for sealing each of the mounting grooves is fixedly connected to the bottom of the mounting plate.

In any of the above aspects, preferably, a positioning plate is fixedly connected to one side portion of the bottom surface of the mounting plate along the length direction thereof.

In any of the above schemes, preferably, the sliding rail set includes a plurality of T-shaped sliding rails disposed at intervals along a width direction of the mounting plate, each of the T-shaped sliding rails is disposed along a length direction of the mounting plate, a T-shaped sliding groove is disposed at a corresponding position of a bottom of the sliding plate, and each of the T-shaped sliding rails is slidably engaged with the T-shaped sliding groove at the corresponding position.

In any of the above schemes, preferably, the telescopic cylinder is an electric cylinder, and the top parts of the two ends of the mounting plate are respectively and fixedly provided with a battery.

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

1. According to the utility model, the mounting plate is stably attached and fixed on the top surface of the steel rail through the adsorption of the magnet to the straight stock rail, so that the whole structure is stably arranged on the steel rail, and meanwhile, the detector can be initially positioned through the abutting connection of the positioning plate and the side part of the straight stock rail, so that the detector is parallel to the straight stock rail, the laser emitted by the laser emitter is vertical to the straight stock rail, the subsequent detection work is facilitated, and the detection accuracy is ensured.

2. According to the utility model, through the movable connection between the rotating shaft and the supporting plate, the rotating shaft can automatically rotate correspondingly under the action of the weight of the balancing weight, so that the laser emitter automatically rotates to the designated position, the laser emitter is automatically and rapidly leveled, the emitted laser is accurately positioned in the horizontal direction, the leveling operation efficiency is improved, and the detection accuracy is further improved.

3. According to the utility model, the telescopic cylinder drives the corresponding clamping block to move, so that the clamping and fixing of the rotating shaft can be automatically and rapidly completed, the limiting effect on the laser transmitter is further realized, the laser transmitter is prevented from shaking in the detection process, and the stability of laser is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are used in the embodiments will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a laser detector in front view of the present utility model.

Fig. 2 is a partial cross-sectional view of the laser detector of the present utility model in front view.

FIG. 3 is a schematic view of a partial connection structure of the clamping assembly of the present utility model when clamping a shaft in a side view.

Fig. 4 is a schematic diagram illustrating the operation of the clamping assembly in a side view of the present utility model.

Fig. 5 is a schematic diagram of a connection structure between a support plate and a mounting plate in a side view of the present utility model.

Fig. 6 is a partial enlarged view at a in fig. 5.

Fig. 7 is a schematic structural diagram of the rotation shaft, the laser assembly and the counterweight assembly fixedly connected in side view.

In the figure, 1, a mounting plate, 2, a sliding plate, 3, a supporting plate, 4, a rotating shaft, 5, a connecting frame, 6, a mounting space, 7, a telescopic cylinder, 8, a clamping block, 9, a semicircular pressing groove, 10, a connecting rod, 11, a balancing weight, 12, a first connecting plate, 13, a second connecting plate, 14, a controller, 15, a laser emitter, 16, a switch, 17, a magnet, 18, a mounting groove, 19, a cover plate, 20, a positioning plate, 21, a T-shaped sliding rail, 22, a T-shaped sliding groove, 23 and a battery.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. The specific structure of the utility model is shown in fig. 1-7.

The utility model provides a switch square laser detector, includes mounting panel 1 the middle part of mounting panel 1 top surface has linked firmly slide rail group along its length direction movable mounting has slide 2 on the slide rail group the top at slide 2 both ends has vertically linked firmly backup pad 3 respectively, two the corresponding position department of backup pad 3 upper end is coaxial respectively has seted up the commentaries on classics hole, still includes pivot 4, the shaft body of pivot 4 left and right sides is movable grafting respectively in the commentaries on classics hole of backup pad 3 of corresponding position department the top of pivot 4 intermediate segment is fixed and is equipped with laser component the bottom of pivot 4 intermediate segment is fixed and is equipped with the counter weight subassembly the top at both ends is equipped with respectively and is used for the centre gripping subassembly that pivot 4 corresponds the tip about mounting panel 1 the bottom of mounting panel 1 is equipped with locating component.

The position of the detector is positioned through the positioning component at the bottom of the mounting plate 1, the detector is fixed on the straight stock rail at the position to be detected, and meanwhile, the detector is parallel to the straight stock rail at the position, so that the laser emitted by the laser component and the straight stock rail at the position are mutually perpendicular, and the accuracy of the detector in square detection of turnout components such as turnout angle steel, internal locking turnout rod pieces and the like is guaranteed.

Through the cooperation slip of slider 2 along slide rail group, can drive two backup pads 3 corresponding horizontal displacement that carries on, and then drive pivot 4, laser subassembly and counter weight subassembly synchronous movement. After the positioning component is positioned, the position of the laser component can be continuously finely adjusted through the matched connection of the sliding rail group and the sliding block, the repeated moving of the detector is avoided, so that laser emitted by the laser component is aligned with the edge of the corresponding angle steel and inner locking turnout rod piece waiting detection structure, and whether the laser is square or not is conveniently observed.

The lower extreme of backup pad 3 is fixed connection respectively on the corresponding tip of slide 2, and fixed mounting has the bearing in the mounting hole on backup pad 3 upper portion, and pivot 4 pass the bearing shaft hole simultaneously through the mode of key connection and be connected rather than, under the cooperation of the support of controlling two backup pads 3 and corresponding bearing, pivot 4 can carry out free rotary motion around its axial like this. Meanwhile, the overall weight of the counterweight assembly is heavier than that of the laser assembly, so that under the action of the counterweight assembly, the rotating shaft 4 can automatically rotate under the condition of no external force interference, and the counterweight assembly can be rotated and moved to the position right below the rotating shaft 4, and then the laser assembly can be rotated and moved to the position right above the rotating shaft 4, so that the leveling operation of the laser assembly is completed, and the laser emitted by the laser assembly can be automatically adjusted to the horizontal position.

After the leveling operation is finished, in order to ensure the stability of the laser component, the laser component is prevented from shaking, the end part of the rotating shaft 4 is automatically clamped and positioned through the clamping component, and then the limiting effect on the rotating motion of the laser component is realized.

In any of the above solutions, preferably, the clamping assembly includes a connection frame 5, an installation space 6 is formed in the middle of the connection frame 5, telescopic clamping pieces are respectively disposed at two sides of the installation space 6 along a horizontal direction, the two telescopic clamping pieces are symmetrically disposed about a vertical center line of the connection frame 5, and inner ends of the two telescopic clamping pieces are used for clamping end portions of the rotating shaft 4.

The rotating shaft 4 passes through the installation space 6 in the middle of the connecting frame 5, and simultaneously, the two telescopic clamping pieces are respectively positioned at two axial sides of the rotating shaft 4. The telescopic clamping pieces can automatically move in a telescopic mode along the horizontal direction, when the inner ends of the telescopic clamping pieces extend to the appointed position in the installation space 6, the telescopic clamping pieces are pressed against the rotating shaft 4, and therefore the clamping and fixing work of the rotating shaft 4 is achieved under the combined action of the telescopic clamping pieces on the two sides.

In any of the above schemes, preferably, the telescopic clamping piece comprises a telescopic cylinder 7, a fixed end of the telescopic cylinder 7 is fixedly connected to a vertical inner side wall at a position corresponding to the connecting frame 5, a telescopic end of the telescopic cylinder 7 horizontally extends to the middle of the installation space 6, a clamping block 8 is fixedly connected to an end part of the telescopic end of the telescopic cylinder 7, a semicircular pressing groove 9 is formed in an inner side part of the clamping block 8, and in a clamping state, the surface of the semicircular pressing groove 9 is attached to and pressed at a position corresponding to the circumferential outer surface of the end part of the rotating shaft 4.

The telescopic rod of the telescopic cylinder 7 stretches out to drive the clamping block 8 to horizontally move until the semicircular pressing groove 9 on the inner side part of the telescopic rod is attached to the shaft body of the end part of the rotating shaft 4 in a buckling mode, and meanwhile anti-skid patterns are formed on the inner surface of the semicircular pressing groove 9, so that friction between the clamping block 8 and the rotating shaft 4 is increased. Under the synchronous extension and retraction of the two extension cylinders 7, the corresponding clamping blocks 8 can be driven to correspondingly approach or depart from the rotating shaft 4, so that the clamping fixation or release of the rotating shaft 4 is finally realized.

In any of the above solutions, preferably, the counterweight assembly includes a connecting rod 10, an upper end of the connecting rod 10 is fixedly connected to a bottom of a circumferential outer surface of the middle section of the rotating shaft 4, and a counterweight 11 is integrally formed at a lower end of the connecting rod 10.

The connecting rod 10 is mutually perpendicular to the rotating shaft 4, and is fixedly connected with the rotating shaft 4 by welding. After the two groups of clamping blocks 8 release the rotating shaft 4 to restore the free rotation, under the action of the weight of the balancing weight 11, the connecting rod 10 finally rotates to the vertical direction under the connection of the rotating shaft 4, so as to drive the corresponding rotating motion of the rotating shaft 4 and further drive the laser component to rotate to the appointed position.

In any of the above schemes, preferably, the laser assembly includes a first connecting plate 12, a plurality of second connecting plates 13 are fixedly connected at intervals at the bottom of the first connecting plate 12, mounting holes of the second connecting plates 13 are respectively fixedly sleeved at corresponding positions on the circumferential outer surface of the rotating shaft 4, a controller 14 is fixedly mounted at the top of the first connecting plate 12, a laser emitter 15 is fixedly mounted at the top of the controller 14, and a switch 16 is fixedly arranged at one side of the top of the controller 14.

The controller 14 is of an existing structure, and is provided with a control main board for controlling the operation of the laser transmitter 15, and a battery module is integrated in the controller, so that the power is supplied to the laser transmitter 15, and the laser transmitter 15 can be turned on or off through the switch 16. The laser emitter 15 is fixedly arranged at the top of the controller 14 along the direction vertical to the rotating shaft 4, and can emit laser along the direction vertical to the rotating shaft 4 when the laser emitter works, so that the square of the switch angle steel and the internal locking switch rod member waiting detection structure is detected. Meanwhile, the laser emitted by the laser emitter 15 is green laser, and compared with infrared laser, the green laser is easier to be observed by naked eyes under sunlight.

In any of the above solutions, preferably, the positioning assembly includes a plurality of magnets 17, a plurality of mounting grooves 18 are spaced apart from each other at the bottom of the mounting plate 1, each of the magnets 17 is disposed in an inner cavity of a corresponding mounting groove 18, and a cover plate 19 for sealing each of the mounting grooves 18 is fixedly connected to the bottom of the mounting plate 1.

Cover plate matching grooves are formed in the bottom of the mounting plate 1, three mounting grooves 18 are formed in the cover plate matching grooves at equal intervals, after three corresponding magnets 17 are respectively arranged in the mounting grooves 18, a cover plate 19 is arranged in the cover plate matching grooves, and meanwhile the cover plate 19 is fixedly connected with the mounting plate 1 through bolts, so that the mounting grooves 18 and the magnets 17 are blocked. The cover plate 19 is kept flush with the bottom of the mounting plate 1 so that the detector can be placed on the surface of the steel rail more stably.

In any of the above embodiments, it is preferable that a positioning plate 20 is fixedly attached to one side portion of the bottom surface of the mounting plate 1 along the length direction thereof.

When the present detector is placed on the surface of the straight stock rail, the positioning plate 20 abuts against the side portion of the straight stock rail at this position, thereby assisting in the initial positioning work thereof, ensuring that the present detector can be placed along the length direction of the straight stock rail.

In any of the above solutions, it is preferable that the sliding rail set includes a plurality of T-shaped sliding rails 21 disposed at intervals along a width direction of the mounting plate 1, each of the T-shaped sliding rails 21 is disposed along a length direction of the mounting plate 1, a T-shaped sliding groove 22 is disposed at a corresponding position of a bottom of the sliding plate 2, and each of the T-shaped sliding rails 21 is slidably connected with the T-shaped sliding groove 22 at the corresponding position.

The number of the T-shaped sliding rails 21 is two, and the corresponding number of the T-shaped sliding grooves 22 is also two, so that the sliding blocks 2 can horizontally slide along the T-shaped sliding rails 21 through the matched connection between the T-shaped sliding rails 21 and the T-shaped sliding grooves 22.

In any of the above embodiments, it is preferable that the telescopic cylinder 7 is an electric cylinder, and the battery 23 is fixedly installed at the top of each of both ends of the mounting plate 1.

For the convenience of the detector, the telescopic cylinder 7 selects an electric cylinder, and a battery 23 is arranged at the corresponding end position of the mounting plate 1 to supply power to the electric cylinder.

The specific working principle is as follows:

An operator firstly places the detector on a straight stock rail at a position to be detected through visual inspection, and the mounting plate 1 is attached and fixed on the top surface of the steel rail through the adsorption of the magnet 17, and meanwhile, the detector is abutted against the side part of the steel rail through the positioning plate 20, so that the detector is parallel to the straight stock rail. Then through the swing joint between T type slide rail 21 and the T type spout 22 for slide 2 removes, thereby carries out the fine setting to the position of laser emitter 15, and then makes laser emitter 15 remove to the angle steel that waits to detect, the edge position department of internal locking switch member isotructure. Simultaneously, under the action of the balancing weight 11, the rotating shaft 4 automatically rotates, and then the laser emitter 15 is leveled, so that the laser emitted by the laser emitter is in the horizontal direction. Then the telescopic cylinder 7 is controlled to extend and drives the corresponding clamping block 8 to move, so that the clamping and fixing of the end part of the rotating shaft 4 are completed, and the stability of the laser transmitter 15 is further ensured. At this time, the laser emitted from the laser emitter 15 is aligned with the edge of one section of the structure to be inspected, and whether the other end is aligned is observed, thereby detecting whether the structure is square or not.

The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Claims

1. The turnout square laser detector is characterized by comprising a mounting plate (1), wherein a sliding rail set is fixedly connected to the middle of the top surface of the mounting plate (1) along the length direction of the mounting plate, a sliding plate (2) is movably mounted on the sliding rail set, support plates (3) are vertically and fixedly connected to the tops of two ends of the sliding plate (2) respectively, rotating holes are coaxially formed in corresponding positions of the upper ends of the two support plates (3) respectively, the turnout square laser detector further comprises rotating shafts (4), shaft bodies on the left side and the right side of the rotating shafts (4) are movably inserted into the rotating holes of the support plates (3) at corresponding positions respectively, a laser component is fixedly arranged at the top of the middle section of the rotating shafts (4), a counterweight component is fixedly arranged at the bottom of the middle section of the rotating shafts (4), clamping components used for clamping the corresponding ends of the rotating shafts (4) are arranged at the tops of the left end and the right end of the mounting plate (1), and a positioning component is arranged at the bottom of the mounting plate (1).

2. The turnout square laser detector as set forth in claim 1, wherein the clamping assembly comprises a connecting frame (5), an installation space (6) is formed in the middle of the connecting frame (5), telescopic clamping pieces are respectively arranged at two side positions of the installation space (6) along the horizontal direction, the two telescopic clamping pieces are symmetrically arranged about the vertical center line of the connecting frame (5), and the inner ends of the two telescopic clamping pieces are used for clamping the end part of the rotating shaft (4).

3. The turnout square laser detector according to claim 2, wherein the telescopic clamping piece comprises a telescopic cylinder (7), the fixed end of the telescopic cylinder (7) is fixedly connected to the vertical inner side wall at the corresponding position of the connecting frame (5), the telescopic end of the telescopic cylinder (7) horizontally extends to the middle part of the installation space (6), a clamping block (8) is fixedly connected to the end part of the telescopic end of the telescopic cylinder (7), a semicircular pressing groove (9) is formed in the inner side part of the clamping block (8), and the surface of the semicircular pressing groove (9) is abutted against the corresponding position of the circumferential outer surface of the end part of the rotating shaft (4) in a clamping state.

4. The turnout square laser detector as set forth in claim 3, wherein the counterweight assembly comprises a connecting rod (10), the upper end of the connecting rod (10) is fixedly connected to the bottom of the circumferential outer surface of the middle section of the rotating shaft (4), and a counterweight (11) is integrally formed at the lower end of the connecting rod (10).

5. The turnout square positive laser detector as set forth in claim 4, wherein the laser assembly comprises a first connecting plate (12), a plurality of second connecting plates (13) are fixedly connected to the bottom of the first connecting plate (12) at intervals, mounting holes of the second connecting plates (13) are fixedly sleeved at corresponding positions on the circumferential outer surface of the rotating shaft (4) respectively, a controller (14) is fixedly arranged at the top of the first connecting plate (12), a laser emitter (15) is fixedly arranged at the top of the controller (14), and a switch (16) is fixedly arranged on one side of the top of the controller (14).

6. The turnout square laser detector as set forth in claim 5, wherein the positioning assembly comprises a plurality of magnets (17), a plurality of mounting grooves (18) are formed in the bottom of the mounting plate (1) at intervals, the magnets (17) are respectively arranged in the inner cavities of the corresponding mounting grooves (18), and a cover plate (19) for sealing the mounting grooves (18) is fixedly connected to the bottom of the mounting plate (1).

7. The turnout square laser detector as claimed in claim 6, wherein a positioning plate (20) is fixedly connected to one side portion of the bottom surface of the mounting plate (1) along the length direction.

8. The turnout square laser detector as set forth in claim 7, wherein the slide rail group comprises a plurality of T-shaped slide rails (21) arranged at intervals along the width direction of the mounting plate (1), each T-shaped slide rail (21) is arranged along the length direction of the mounting plate (1), T-shaped slide grooves (22) are respectively arranged at corresponding positions of the bottom of the slide plate (2), and each T-shaped slide rail (21) is respectively connected with the T-shaped slide groove (22) at the corresponding position in a sliding fit manner.

9. The turnout square laser detector according to claim 8, wherein the telescopic cylinder (7) is an electric cylinder, and batteries (23) are fixedly arranged at the tops of two ends of the mounting plate (1) respectively.