CN112681965A

CN112681965A - Electrician uses multi-functional cat ladder

Info

Publication number: CN112681965A
Application number: CN202011613273.5A
Authority: CN
Inventors: 孙军利
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-20

Abstract

The invention relates to the technical field of professional climbing ladders for electricians, and discloses a multifunctional climbing ladder for electricians, which comprises a first ladder, wherein a rotating handle is rotated to drive a first rotating shaft to rotate when the rotating handle rotates, a second helical gear and a third helical gear are driven to rotate when the first rotating shaft rotates, the second helical gear is meshed with the first helical gear, the third helical gear is meshed with a fourth helical gear, the first helical gear is fixedly arranged at the bottom of a second rotating screw, the fourth helical gear is fixedly arranged at the bottom of the first rotating screw, the rotating directions of the first rotating screw and the second rotating screw are opposite, so that the first rotating screw and the second rotating screw can rotate, a connecting plate is driven to move up and down through a first rotating block and a second rotating block respectively, and the second ladder can be driven to stretch inside the first ladder when the connecting plate moves up and down, thereby the effect can be adjusted to the length of cat ladder.

Description

Electrician uses multi-functional cat ladder

Technical Field

The invention relates to the technical field of electrician professional crawling ladders, in particular to a multifunctional crawling ladder for electricians.

Background

The use of electric energy has penetrated all fields of national economy and people's life, become the main power form of industry, agriculture, transportation and national defense and the indispensable energy in people's family life, have obtained extensive application in the aspects of dragging, illumination, electric heat, electrochemistry and communication, and in daily life, the cat ladder is used as the instrument of climbing eminence and is generally used, as shown in figure 1, generally include two vertical support bars and a plurality of horizontal support bars between two vertical support bars, and during the use, relevant personnel reach the target eminence through climbing each horizontal support bar.

Through retrieval, chinese patent No. CN206513297U discloses a special ladder for electricians, which comprises anti-skid pad 1 telescopic legs, a main beam, an adjusting handle, a cross rod, a positioning rod, a V-shaped positioning fork, a spring 8 and a rubber pad, wherein when in use, a height-adjustable telescopic leg is respectively arranged on two legs below a common ladder, and the ground can be adjusted at uneven time, the V-shaped positioning fork is arranged on the cross rod on the top of the ladder, and the upper side can clamp a cement wire pole through the V-shaped positioning fork, so as to prevent the ladder from inclining.

However, when the ladder stand special for electricians is used, only the two legs of the ladder stand are provided with the telescopic legs with adjustable height, and the positioning forks are arranged on the ladder.

Disclosure of Invention

The invention aims to provide a multifunctional ladder stand for electricians, which aims to solve the problems in the background technology.

Technical scheme

The invention provides the following technical scheme: a multifunctional ladder stand for electricians comprises first ladder steps, wherein first connecting columns are fixedly installed at the bottoms of the first ladder steps, supporting base plates are fixedly installed at the bottoms of the first connecting columns, first connecting blocks are fixedly installed on opposite sides of every two adjacent first ladder steps, and a first transverse ladder is fixedly installed between every two adjacent first connecting blocks;

a second mounting groove is formed in the first step, a first rotating shaft is movably mounted in the second mounting groove, a second helical gear and a third helical gear are fixedly mounted on the outer side of the first rotating shaft respectively, a rotating handle is fixedly mounted on one side of the first rotating shaft, a transverse plate is fixedly mounted in the second mounting groove, a first rotating screw rod and a second rotating screw rod are movably mounted in the transverse plate respectively, a second rotating block is connected to the outer side of the first rotating screw rod in a threaded manner, a first rotating block is connected to the outer side of the second rotating screw rod in a threaded manner, a connecting plate is fixedly mounted between the first rotating block and the second rotating block, and a second step is fixedly mounted at the top of the connecting plate;

adjacent two equal fixed mounting in relative one side of second ladder has the second connecting block, adjacent two fixed mounting has the second horizontal ladder between the second connecting block, first mounting groove has been seted up to the inside of second ladder, the inside fixed mounting of first mounting groove has the fixed column, the outside movable mounting of fixed column has the sliding block, positive one side fixed mounting of sliding block has the fixed block, the inside swing joint of fixed block has the protective rope to connect, the inside movable mounting of fixed block has the pulling rod, the outside fixed mounting that pulls the rod has the limiting plate, the outside movable mounting that pulls the rod has reset spring, the one end fixed mounting that pulls the rod has the pull ring.

Preferably, a fourth bevel gear is fixedly installed at the bottom of the first rotating screw through a transverse plate, and a first bevel gear is fixedly installed at the bottom of the second rotating screw through a transverse plate.

Preferably, the first helical gear and the second helical gear are in meshed connection, and the third helical gear and the fourth helical gear are in meshed connection.

Preferably, the bottom of the supporting base plate is fixedly provided with an anti-slip pad, and the bottom of the anti-slip pad is provided with anti-slip lines.

Preferably, the first rotating screw rod and the second rotating screw rod penetrate through the transverse plate, and bearings matched with the first rotating screw rod and the second rotating screw rod are fixedly installed inside the transverse plate.

Preferably, the rotation handle is located on the opposite side of the first connecting block on the first step.

Preferably, one side and the limiting plate fixed connection of reset spring, the opposite side of reset spring and the inner wall fixed connection of fixed block, the inside of fixed block seted up with protection rope joint assorted spread groove, the shape of spread groove presents the T font, protection rope joint is located the bottom of two adjacent pulling poles.

Preferably, the length of the first horizontal ladder is smaller than that of the second horizontal ladder.

Advantageous effects

Compared with the prior art, the invention provides a multifunctional ladder stand for electricians, which has the following beneficial effects:

1. the multifunctional ladder stand for electricians can drive the first rotating shaft to rotate when the rotating handle rotates and drive the second helical gear and the third helical gear to rotate when the first rotating shaft rotates, the second helical gear is connected with the first helical gear in a meshing way, the third helical gear is connected with the fourth helical gear in a meshing way, the first bevel gear is fixedly arranged at the bottom of the second rotating screw rod, the fourth bevel gear is fixedly arranged at the bottom of the first rotating screw rod, and the rotating directions of the first rotating screw and the second rotating screw are opposite, so that the first rotating screw and the second rotating screw can rotate, and all drive the connecting plate up-and-down motion through first turning block and second turning block respectively, will drive the second ladder and stretch out and draw back in first ladder inside during connecting plate up-and-down motion to can adjust the effect to the length of cat ladder.

2. This electrician uses multi-functional cat ladder through with the pull ring to one side pulling, the pull ring will move the pole through the pulling and drive the limiting plate and compress reset spring like this, will protect rope joint and place in the inside of fixed block, loosen the pull ring again, the pull ring loosens the pressure that back reset spring received and disappears, reset spring can drive the pulling and move the pole and resume the normal position, the pulling pole will be located the top that protects rope joint like this to can prevent that protecting rope joint from dropping the roll-off, thereby reach and to protect user's effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a side cross-sectional view of a first step of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 4 is a perspective view of the mounting block of the present invention;

FIG. 5 is a top view of a third rotating block and a fixed block of the present invention.

In the figure: 1-first ladder, 2-first connecting column, 3-supporting cushion plate, 4-first connecting block, 5-first horizontal ladder, 6-first rotating shaft, 7-rotating handle, 8-second ladder, 9-second connecting block, 10-second horizontal ladder, 11-first mounting groove, 12-fixing column, 13-transverse plate, 14-second mounting groove, 15-first helical gear, 16-second helical gear, 17-third helical gear, 18-first rotating screw, 19-second rotating screw, 20-first rotating block, 21-second rotating block, 22-connecting plate, 23-fourth helical gear, 24-sliding block, 25-fixing block, 26-protective rope joint, 27-pulling rod, 28-limiting plate, 29-pull ring, 30-return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a multifunctional ladder for electricians comprises first steps 1, wherein first connecting columns 2 are fixedly installed at the bottoms of the first steps 1, supporting base plates 3 are fixedly installed at the bottoms of the first connecting columns 2, first connecting blocks 4 are fixedly installed at opposite sides of two adjacent first steps 1, and first transverse ladders 5 are fixedly installed between two adjacent first connecting blocks 4;

a second mounting groove 14 is formed in the first ladder 1, a first rotating shaft 6 is movably mounted in the second mounting groove 14, a second helical gear 16 and a third helical gear 17 are fixedly mounted on the outer side of the first rotating shaft 6 respectively, a rotating handle 7 is fixedly mounted on one side of the first rotating shaft 6, a transverse plate 13 is fixedly mounted in the second mounting groove 14, a first rotating screw 18 and a second rotating screw 19 are movably mounted in the transverse plate 13 respectively, the rotating directions of the first rotating screw 18 and the second rotating screw 19 are opposite, a second rotating block 21 is in threaded connection with the outer side of the first rotating screw 18, a first rotating block 20 is in threaded connection with the outer side of the second rotating screw 19, a connecting plate 22 is fixedly mounted between the first rotating block 20 and the second rotating block 21, a second ladder 8 is fixedly mounted on the top of the connecting plate 22, and a placing groove matched with the second ladder 8 is formed in one side, which is opposite to two adjacent first ladders 1;

equal fixed mounting in relative one side of two adjacent second ladders 8 has second connecting block 9, fixed mounting has second horizontal ladder 10 between two adjacent second connecting blocks 9, first mounting groove 11 has been seted up to second ladder 8's inside, the inside fixed mounting of first mounting groove 11 has fixed column 12, the outside movable mounting of fixed column 12 has sliding block 24, the positive one side fixed mounting of sliding block 24 has fixed block 25, the inside swing joint of fixed block 25 has protective rope joint 26, the inside movable mounting of fixed block 25 has pulling rod 27, the outside fixed mounting of pulling rod 27 has limiting plate 28, the outside movable mounting who pulls rod 27 has reset spring 30, the one end fixed mounting of pulling rod 27 has pull ring 29.

The bottom of the first rotating screw 18 is fixedly provided with a fourth bevel gear 23 through a transverse plate 13, and the bottom of the second rotating screw 19 is fixedly provided with a first bevel gear 15 through the transverse plate 13.

Wherein, meshing connection between first helical gear 15 and the second helical gear 16 can drive first rotation screw 18 to rotate through first helical gear 15 when making things convenient for second helical gear 16 to rotate, and meshing connection between third helical gear 17 and the fourth helical gear 23 can drive second rotation screw 19 to rotate through fourth helical gear 23 when making things convenient for third helical gear 17 to rotate.

Wherein, the bottom fixed mounting of supporting pad board 3 has the slipmat, and the bottom of slipmat is provided with anti-skidding line, can increase the cat ladder when using, supports the frictional force between backing board 3 and the ground to protect the purpose to the user.

Wherein, first rotation screw 18 and second rotation screw 19 all run through diaphragm 13, and the inside fixed mounting of diaphragm 13 has and rotates screw 18 and second rotation screw 19 assorted bearing, makes things convenient for first rotation screw 18 and second rotation screw 19's rotation not to receive the hindrance.

Wherein, the rotating handle 7 is positioned at the opposite side of the first connecting block 4 on the first ladder 1, thus facilitating the user to adjust the height of the ladder without being hindered.

Wherein, one side and the limiting plate 28 fixed connection of reset spring 30, the opposite side of reset spring 30 and the inner wall fixed connection of fixed block 25, the inside of fixed block 25 seted up with protection rope joint 26 assorted spread groove, the shape of spread groove presents the T font, protection rope joint 26 is located the bottom of two adjacent pulling poles 27, can prevent that protection rope joint 26 from droing from the inside of fixed block 25.

Wherein, the length of first horizontal ladder 5 is less than the length of second horizontal ladder 10, makes things convenient for second horizontal ladder 10 to get into the inside of first horizontal ladder 5 like this, to the altitude mixture control convenience more of cat ladder.

The working principle and the using process of the invention are as follows: when the ladder is used, the rotating handle 7 rotates, the rotating handle 7 drives the first rotating shaft 6 to rotate when rotating, the first rotating shaft 6 drives the second helical gear 16 and the third helical gear 17 to rotate when rotating, the second helical gear 16 is meshed with the first helical gear 15, the third helical gear 17 is meshed with the fourth helical gear 23, the first helical gear 15 is fixedly arranged at the bottom of the second rotating screw 19, the fourth helical gear 23 is fixedly arranged at the bottom of the first rotating screw 18, the rotating directions of the first rotating screw 18 and the second rotating screw 19 are opposite, so that the first rotating screw 18 and the second rotating screw 19 can both rotate, the connecting plate 22 is driven to move up and down by the first rotating block 20 and the second rotating block 21 respectively, and the connecting plate 22 can drive the second ladder 8 to extend and retract inside the first ladder 1 when moving up and down, thereby can adjust the length of cat ladder, and after the length height of regulation cat ladder, through with pull ring 29 to one side pulling, pull ring 29 will drive limiting plate 28 through pulling pole 27 and compress reset spring 30 like this, place protection rope joint 26 in the inside of fixed block 25, loosen pull ring 29 again, the pressure that reset spring 30 received after pull ring 29 loosens disappears, reset spring 30 can drive pulling pole 27 and resume the normal position, pulling pole 27 will be located protection rope joint 26's top like this, thereby can prevent that protection rope joint 26 from dropping the roll-off.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electrician is with multi-functional cat ladder, includes first ladder (1), its characterized in that: a first connecting post (2) is fixedly installed at the bottom of the first ladder (1), a supporting base plate (3) is fixedly installed at the bottom of the first connecting post (2), first connecting blocks (4) are fixedly installed at opposite sides of two adjacent first ladders (1), and a first transverse ladder (5) is fixedly installed between the two adjacent first connecting blocks (4);

a second mounting groove (14) is formed in the first ladder (1), a first rotating shaft (6) is movably mounted in the second mounting groove (14), a second helical gear (16) and a third helical gear (17) are respectively and fixedly mounted on the outer side of the first rotating shaft (6), a rotating handle (7) is fixedly mounted on one side of the first rotating shaft (6), a transverse plate (13) is fixedly mounted in the second mounting groove (14), a first rotating screw (18) and a second rotating screw (19) are respectively and movably mounted in the transverse plate (13), a second rotating block (21) is in threaded connection with the outer side of the first rotating screw (18), a first rotating block (20) is in threaded connection with the outer side of the second rotating screw (19), and a connecting plate (22) is fixedly mounted between the first rotating block (20) and the second rotating block (21), a second ladder (8) is fixedly arranged at the top of the connecting plate (22);

second connecting blocks (9) are fixedly arranged on the opposite sides of two adjacent second ladders (8), a second transverse ladder (10) is fixedly arranged between the two adjacent second connecting blocks (9), a first mounting groove (11) is formed in the second ladder (8), a fixing column (12) is fixedly mounted in the first mounting groove (11), a sliding block (24) is movably installed on the outer side of the fixed column (12), a fixed block (25) is fixedly installed on one side of the front surface of the sliding block (24), the inside of the fixed block (25) is movably connected with a protective rope joint (26), the inside movable mounting of fixed block (25) has pulling rod (27), the outside fixed mounting of pulling rod (27) has limiting plate (28), the outer side of the pull rod (27) is movably provided with a return spring (30), and one end of the pull rod (27) is fixedly provided with a pull ring (29).

2. The multifunctional ladder stand for electricians according to claim 1, characterized in that: the bottom of the first rotating screw rod (18) penetrates through a transverse plate (13) to be fixedly provided with a fourth bevel gear (23), and the bottom of the second rotating screw rod (19) penetrates through the transverse plate (13) to be fixedly provided with a first bevel gear (15).

3. The multifunctional ladder stand for electricians according to claim 1 or 2, characterized in that: the first helical gear (15) is in meshed connection with the second helical gear (16), and the third helical gear (17) is in meshed connection with the fourth helical gear (23).

4. The multifunctional ladder stand for electricians according to claim 1, characterized in that: the bottom of the supporting base plate (3) is fixedly provided with an anti-slip pad, and the bottom of the anti-slip pad is provided with anti-slip lines.

5. The multifunctional ladder stand for electricians according to claim 1, characterized in that: first rotation screw rod (18) and second rotation screw rod (19) all run through diaphragm (13), the inside fixed mounting of diaphragm (13) have with first rotation screw rod (18) and second rotation screw rod (19) assorted bearing.

6. The multifunctional ladder stand for electricians according to claim 1, characterized in that: the rotating handle (7) is positioned on the opposite side of the first connecting block (4) on the first ladder (1).

7. The multifunctional ladder stand for electricians according to claim 1, characterized in that: one side and limiting plate (28) fixed connection of reset spring (30), the opposite side of reset spring (30) and the inner wall fixed connection of fixed block (25), the inside of fixed block (25) is seted up and is connected (26) assorted spread groove with the protection rope, the shape of spread groove presents the T font, protection rope connects (26) and is located the bottom of two adjacent pulling poles (27).

8. The multifunctional ladder stand for electricians according to claim 1, characterized in that: the length of the first horizontal ladder (5) is less than that of the second horizontal ladder (10).