CN214525900U

CN214525900U - Balancer for heavy cover

Info

Publication number: CN214525900U
Application number: CN202120538031.8U
Authority: CN
Inventors: 曹胜刚
Original assignee: Jingjiang Luokan Machinery Co ltd
Current assignee: Jingjiang Luokan Machinery Co ltd
Priority date: 2021-03-13
Filing date: 2021-03-13
Publication date: 2021-10-29
Anticipated expiration: 2031-03-13

Abstract

The utility model provides a balancer for heavy covers, which comprises an upper cover connecting frame (2), a base connecting frame (3) and two spring seats (1) which are symmetrically arranged, the upper cover connecting frame (2) is arranged between the two spring seats (1), the spring seats (1) are fixedly provided with connecting seats (4), the upper cover connecting frame (1) is connected with the connecting seat (4) through a pin shaft (8), torque adjusting devices (6) are arranged on the opposite surfaces of the two spring seats (1), the base connecting frame (3) is fixedly connected with the torque adjusting device, a rotating shaft (7) is arranged in the spring seat (1), a volute spiral spring (5) is arranged in the spring seat (1), one end of the volute spiral spring (5) is fixedly connected with the inner wall of the spring seat (1), the other end of the scroll spring (5) is fixedly connected with the rotating shaft (7). The utility model discloses can the multi-angle independently stop, open heavy lid labour saving and time saving, convenient operation.

Description

Balancer for heavy cover

Technical Field

The utility model relates to a balancer field, in particular to a balancer for heavy lid.

Background

Along with the rapid development of industries such as domestic chemical industry, food, medicine and the like, pressure vessels, reaction kettles, reaction furnaces and the like are widely applied, the large-scale industrial equipment generally adopts covers to facilitate the operation of operators, particularly, some industrial equipment is provided with manholes, manhole covers are additionally arranged on the manholes, the cover weight of the large-scale industrial equipment is larger, the operators are generally difficult to open, time and labor are consumed, the production efficiency is low, the covers generally adopt common hinge structures, the covers can not stay at any position in the opening and closing process, the safety coefficient is low, and accidents are easy to happen. Therefore, a new open-cover balancer is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a balancer for heavy lid has solved heavy lid and has been difficult to open and lead to productivity ratio low, lid at the unable technical problem who independently stops the optional position of the in-process that opens and shuts.

In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: the utility model provides a balancer for heavy lid, includes upper cover link, base link, still includes two spring holders that the symmetry set up, the upper cover link is established two between the spring holder, the fixed connecting seat that is provided with on the spring holder, the upper cover link is connected, two through round pin axle and connecting seat the spring holder is relative is provided with torque adjustment device on the surface, base link and torque adjustment device fixed connection, be provided with the pivot in the spring holder, be provided with volute spiral spring in the spring holder, volute spiral spring's one end and the inner wall fixed connection of spring holder, volute spiral spring's the other end and pivot fixed connection.

As a preferred technical scheme: the torque adjusting device comprises a torque adjusting barrel and an arc adjusting block arranged in the torque adjusting barrel, wherein the torque adjusting barrel is radially provided with a through screw hole, and the arc adjusting block is fixedly connected with the rotating shaft.

As a preferred technical scheme: the spiral spring is characterized in that an outward-extending boss is arranged above the spring seat, an upper plate is fixedly connected between the bosses, the bosses and the spring seat form a hollow structure, and the spiral spring is fixedly connected with the upper inner wall of each boss.

As a preferred technical scheme: two the relative two surfaces of spring holder and torque adjusting device all are provided with the shaft hole, the pivot is worn to establish in the shaft hole and is extended to another spring holder from a spring holder.

As a preferred technical scheme: the middle section of the rotating shaft is in threaded connection with a nut.

As a preferred technical scheme: the upper cover connecting frame is a U-shaped structure formed by connecting two upper cover connecting pieces and an upper connecting straight plate, a U-shaped opening of the upper cover connecting frame faces away from the spring seat, the base connecting frame is a U-shaped structure formed by connecting two side plates and a lower connecting straight plate, the U-shaped opening of the base connecting frame faces towards the spring seat, and two base connecting pieces are arranged at the front end of the lower connecting straight plate.

As a preferred technical scheme: the lower surface of the upper cover connecting sheet is provided with an upper arc transition section, and the upper surface of the base connecting sheet is provided with a lower arc transition section matched with the upper arc transition section.

As a preferred technical scheme: at least one horizontal adjusting screw is fixedly arranged on the upper connecting straight plate.

The utility model has the advantages that: a balancer for a heavy cap, compared to a conventional structure:

1) the upper cover connecting frame is fixedly connected with the spring seats, the upper cover connecting frame can rotate along with the spring seats, the volute spiral springs arranged in the two spring seats which are symmetrically arranged can store and release energy, the cover can be opened more easily through the elasticity of the volute spiral springs, the two volute spiral springs can provide larger elasticity to support a heavy cover, a torque adjusting device is arranged on one side of each spring seat facing the connecting seat and can adjust the torque of the volute spiral springs, and further preferably, the torque adjusting device comprises a torque adjusting cylinder, an arc adjusting block arranged in the torque adjusting cylinder and a torque adjusting screw in threaded connection with the torque adjusting cylinder, the arc adjusting block is fixedly connected with the rotating shaft, the torque adjusting screw penetrates through the cylinder wall of the torque adjusting cylinder and directly pushes the arc adjusting block through the rotating torque adjusting screw, so that the arc adjusting block drives the rotating shaft to rotate, due to the characteristics of the spiral spring, the torque of the spiral spring fixedly connected with the rotating shaft can be changed, the operation is simple and easy, and the adjusting effect is good;

2) preferably, two surfaces of the two spring seats opposite to each other and the torque adjusting device are provided with shaft holes, the rotating shaft penetrates through the shaft holes and extends from one spring seat to the other spring seat, further preferably, the middle section of the rotating shaft is in threaded connection with a nut, and an operator can pre-tighten the volute spiral spring by screwing or loosening the nut;

3) preferably, the upper cover connecting frame and the base connecting frame are both of U-shaped structures, the U-shaped structures are simple and easy to manufacture, materials are saved, and meanwhile, better supporting performance is provided;

4) preferably, at least one horizontal adjusting screw is fixedly arranged on the spring seat, and the screw head is pushed by rotating the horizontal adjusting screw to enable the upper cover connecting frame to rotate around the pin shaft within a certain angle range, so that the levelness of the cover is adjusted, the cover is closed more tightly, and the sealing performance is improved.

Drawings

Fig. 1 is a three-dimensional view of the open state of the present invention;

FIG. 2 is a three-dimensional view of the present invention in a closed state;

FIG. 3 is an internal structural view of the present invention;

fig. 4 is a structural view of the rotating shaft and the arc adjusting block.

In the figures 1-4, 1, a spring seat, 1-1, a boss, 1-2, a sealing cover, 1-11, an upper plate, 2, an upper cover connecting frame, 2-1, an upper cover connecting sheet, 2-11, an upper arc transition section, 2-2, an upper connecting straight plate, 3, a base connecting frame, 3-1, a side plate, 3-2, a lower connecting straight plate, 3-3, a base connecting sheet, 3-31, a lower arc transition section, 4, a connecting seat, 5, a volute spring, 6, a torque adjusting device, 6-1, a torque adjusting cylinder, 6-2, an arc adjusting block, 6-3, a torque adjusting screw, 7, a rotating shaft, 7-1, a groove, 8, a pin shaft, 9, a nut and 10, a horizontal adjusting screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings;

referring to fig. 1-4, a balancer for a heavy cover comprises an upper cover connecting frame 2, a base connecting frame 3, and two spring seats 1 symmetrically arranged, wherein the upper cover connecting frame 2 is arranged between the two spring seats 1, the spring seats 1 are fixedly provided with connecting seats 4, the upper cover connecting frame 1 is connected with the connecting seats 4 through pin shafts 8, torque adjusting devices 6 are arranged on the opposite surfaces of the two spring seats 1, the base connecting frame 3 is fixedly connected with the torque adjusting devices 6, a rotating shaft 7 is arranged in each spring seat 1, a volute spring 5 is arranged in each spring seat 1, one end of each volute spring 5 is fixedly connected with the inner wall of each spring seat 1, the other end of each volute spring 5 is fixedly connected with the rotating shaft 7, a groove 7-1 can be formed in the rotating shaft 7, and the other end of each volute spring 5 is inserted into the groove 7-1, furthermore, bosses 1-1 extending outwards are fixedly connected above the spring seats 1, upper plates 1-11 are fixedly connected between the bosses 1-1, the bosses 1-1 and the spring seats 1 are of an integral structure and form a hollow structure, a sealing cover 1-2 is embedded on the end face of the spring seat 1 for sealing the spring cover 1, volute springs 5 are fixedly connected with the upper inner wall of the bosses 1-1, further, two opposite surfaces of the two spring seats 1 and a torque adjusting device 6 are respectively provided with a shaft hole, a rotating shaft 7 is arranged in the shaft hole in a penetrating manner and extends from one spring seat 1 to the other spring seat 1, an upper cover connecting frame 2 is fixedly connected with the spring seats 1, the upper cover connecting frame 2 can rotate along with the spring seats 1, and the volute springs 5 arranged in the two symmetrically arranged spring seats 1 can store and release energy, make opening of lid more laborsaving through volute spiral spring 5's elasticity, and two volute spiral springs 5 can provide bigger elasticity in order to support heavy lid to spring holder 1 is provided with torque adjusting device 6 towards one side of connecting seat 4, can adjust volute spiral spring 5's moment of torsion, and is further, the interlude threaded connection of pivot 7 has nut 9, and two spring holders 1 share a root axis, and operating personnel only need screw up or loosen nut 9 and can carry out the pretension to volute spiral spring 5.

As shown in fig. 1-4, the torque adjusting device 6 includes a torque adjusting cylinder 6-1, an arc adjusting block 6-2 disposed in the torque adjusting cylinder 6-1, and a torque adjusting screw 6-3 in threaded connection with the torque adjusting cylinder 6-1, the arc adjusting block 6-2 is fixedly connected with a rotating shaft 7, the torque adjusting screw 6-3 passes through a cylinder wall of the torque adjusting cylinder 6-1, the arc adjusting block 6-2 and the rotating shaft 7 adopt a key connection or other interference fit manner, the arc adjusting block 6-2 is directly pushed towards a plane of the rotating shaft 7 by rotating the torque adjusting screw 6-3, so that the arc adjusting block 6-2 drives the rotating shaft 7 to rotate, and due to the characteristics of the volute spiral spring 5, the torque of the volute spiral spring 5 fixedly connected with the rotating shaft 7 is changed, simple easy operation, the adjustment is effectual, and both sides all are provided with torque adjusting device 6 for the torque adjustment scope is bigger, and one of them or two torque adjusting device 6 of optional are adjusted, are applicable to different operating modes.

As shown in fig. 1-4, a pin shaft 8 is sleeved on the connecting seat 4, the upper cover connecting frame 2 is a U-shaped structure formed by connecting two upper cover connecting pieces 2-1 and an upper connecting straight plate 2-2, a U-shaped opening of the upper cover connecting frame 2 faces away from the spring seat 1, the base connecting frame 3 is a U-shaped structure formed by connecting two side plates 3-1 and a lower connecting straight plate 3-2, a U-shaped opening of the base connecting frame 3 faces the spring seat 1, two base connecting pieces 3-3 are arranged at the front end of the lower connecting straight plate 3-2, the U-shaped structure is simple and easy to manufacture, better support performance is provided while materials are saved, the U-shaped connecting piece structure rotates more conveniently as a connecting piece, further, an upper arc transition section 2-11 is arranged on the lower surface of the upper cover 2-1, and a lower arc transition section 2-11 matched with the upper arc transition section is arranged on the upper surface of the base connecting piece 3-3 The arc transition sections 3-31 are used for providing a buffer section by matching the upper arc transition sections 2-11 with the lower arc transition sections 3-31 when the cover is closed, reserving a horizontal adjustment space for the cover and improving the sealing property when the cover is closed.

As shown in fig. 1-4, at least one horizontal adjusting screw 10 is fixedly arranged on the upper connecting straight plate 2-2, the number of the horizontal adjusting screws 10 is 2, 3 or 4, the horizontal adjusting screw 10 penetrates through the upper connecting straight plate 2-2, the horizontal adjusting screw 10 is directly rotated, and a screw head of the horizontal adjusting screw 10 pushes the upper connecting straight plate 2-2 to rotate around a pin shaft 8, so that the levelness can be adjusted, and the sealing performance of the cover closing is improved.

The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.

Claims

1. A balancer for a heavy cover, comprising an upper cover link (2), a base link (3), characterized in that: still including two spring holders (1) that the symmetry set up, establish upper cover link (2) two between spring holder (1), the fixed connecting seat (4) that is provided with on spring holder (1), upper cover link (2) are connected, two through round pin axle (8) and connecting seat (4) the relative surperficial torque adjustment device (6) that is provided with in spring holder (1), base link (3) and torque adjustment device (6) fixed connection, be provided with pivot (7) in spring holder (1), be provided with volute spiral spring (5) in spring holder (1), the one end of volute spiral spring (5) and the inner wall fixed connection of spring holder (1), the other end and pivot (7) fixed connection of volute spiral spring (5).

2. A balancer for heavy covers as claimed in claim 1, wherein: the torque adjusting device (6) comprises a torque adjusting barrel (6-1), an arc adjusting block (6-2) arranged in the torque adjusting barrel (6-1), and a torque adjusting screw (6-3) in threaded connection with the torque adjusting barrel (6-1), wherein the arc adjusting block (6-2) is fixedly connected with a rotating shaft (7), and the torque adjusting screw (6-3) penetrates through the barrel wall of the torque adjusting barrel (6-1).

3. A balancer for heavy covers as claimed in claim 1, wherein: the spiral spring is characterized in that bosses (1-1) extending outwards are arranged above each spring seat (1), upper plates (1-11) are fixedly connected between the bosses (1-1), the bosses (1-1) and the spring seats (1) form a hollow structure, and the spiral springs (5) are fixedly connected with the upper inner walls of the bosses (1-1).

4. A balancer for heavy covers as claimed in claim 1, wherein: two relative two surfaces of spring holder (1) and torque adjusting device (6) all are provided with the shaft hole, pivot (7) wear to establish in the shaft hole and extend to another spring holder (1) from one spring holder (1).

5. A balancer for heavy covers as claimed in claim 4, wherein: the middle section of the rotating shaft (7) is in threaded connection with a nut (9).

6. A balancer for heavy covers as claimed in claim 1, wherein: the upper cover connecting frame (2) is of a U-shaped structure formed by connecting two upper cover connecting pieces (2-1) and an upper connecting straight plate (2-2), a U-shaped opening of the upper cover connecting frame (2) faces away from the spring seat (1), the base connecting frame (3) is of a U-shaped structure formed by connecting two side plates (3-1) and a lower connecting straight plate (3-2), the U-shaped opening of the base connecting frame (3) faces towards the spring seat (1), and two base connecting pieces (3-3) are arranged at the front end of the lower connecting straight plate (3-2).

7. A balancer for heavy duty covers as claimed in claim 6, wherein: the lower surface of the upper cover connecting piece (2-1) is provided with an upper arc transition section (2-11), and the upper surface of the base connecting piece (3-3) is provided with a lower arc transition section (3-31) matched with the upper arc transition section (2-11).

8. A balancer for heavy duty covers as claimed in claim 6, wherein: at least one horizontal adjusting screw (10) is fixedly arranged on the upper connecting straight plate (2-2).