CN215673568U

CN215673568U - Cover opening balancer

Info

Publication number: CN215673568U
Application number: CN202120526009.1U
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: 2022-01-28
Anticipated expiration: 2031-03-13

Abstract

The utility model provides a cover opening balancer which comprises an upper cover connecting frame, a base connecting frame and a spring seat, wherein the base connecting frame and the spring seat are arranged below the upper cover connecting frame, a convex edge extending outwards is arranged above the spring seat, the spring seat and the convex edge are of an integrated structure, the upper cover connecting frame is fixedly connected with the convex edge, the base connecting frame is sleeved on the outer side of the spring seat, a rotating shaft is arranged in the spring seat, the base connecting frame is rotatably connected with the spring seat through the rotating shaft, a volute spring is arranged in the spring seat, one end of the volute spring is fixedly connected with the upper inner wall of the convex edge, the other end of the volute spring is fixedly connected with the rotating shaft, a threaded part is arranged at one end of the rotating shaft, a limiting convex block is arranged at one end of the threaded part, a nut is sleeved on the threaded part, and a stop mechanism is arranged at the other end of the rotating shaft. The utility model can independently stop at multiple angles, saves time and labor and is convenient to operate.

Description

Cover opening balancer

Technical Field

The utility model relates to the field of balancers, in particular to a cover opening balancer.

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 and medium-sized industrial equipment generally can use covers to facilitate 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 and medium-sized industrial equipment is large, the operators generally have the problems of labor consumption, time consumption and labor consumption and low production efficiency, the covers generally adopt common hinge structures, the covers cannot 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.

Disclosure of Invention

The utility model aims to provide a cover opening balancer, which solves the technical problems that the production rate is low due to time and labor consumption of opening a cover, and a cover cannot automatically stay at any position in the opening and closing process.

In order to achieve the technical purpose and achieve the technical requirements, the utility model adopts the technical scheme that: the utility model provides a balancer uncaps, includes the upper cover link, sets up base link, the spring holder in upper cover link below, the spring holder top is provided with the protruding edge of outside extension, spring holder and protruding structure as an organic whole along, upper cover link and protruding edge fixed connection, the outside cover of spring holder is equipped with the base link, be provided with the pivot in the spring holder, the base link rotates with the spring holder through the pivot to be connected, be provided with the spiral spring in the spring holder, the one end of spiral spring and the last inner wall fixed connection on protruding edge, the other end and the pivot fixed connection of spiral spring, the one end of pivot is provided with screw thread portion, the one end of screw thread portion is provided with spacing lug, the cover is equipped with the nut on the screw thread portion, the other end of pivot is provided with detent mechanism.

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: and a connecting seat fixedly connected with the spring seat is arranged below the convex edge, the connecting seat is connected with the upper cover connecting frame through a pin shaft, and the pin shaft penetrates through the two upper cover connecting pieces.

As a preferred technical scheme: the spring seat is fixedly provided with at least one horizontal adjusting screw rod, the horizontal adjusting screw rod is located near the pin shaft, and the upper cover connecting frame is fixedly connected with the spring seat through the horizontal adjusting screw rod.

As a preferred technical scheme: the number of the horizontal adjusting screw rods is two, and the two horizontal adjusting screw rods are arranged on the upper side and the lower side of the pin shaft.

As a preferred technical scheme: the stop mechanism comprises a limiting tooth and a sawtooth part meshed with the limiting tooth, the sawtooth part is fixedly arranged at one end, facing the limiting tooth, of the spring seat, the limiting tooth is fixedly arranged at the other end of the rotating shaft, and a torque adjusting block is arranged at one end, away from the spring seat, of the limiting tooth.

As a preferred technical scheme: and a circular nylon sheet is arranged between the side plates and the spring seats, and the nylon sheet is sleeved on the rotating shaft.

As a preferred technical scheme: the scroll spring is a variable torque ratio scroll spring.

The utility model has the beneficial effects that: a cover opening balancer, compared with a conventional structure:

1) the upper cover connecting frame is fixedly connected with the spring seat, the upper cover connecting frame can rotate along with the spring seat, a volute spiral spring arranged in the spring seat can store and release energy, the cover can be opened more easily through the elasticity of the volute spiral spring, a threaded part is arranged on the rotating shaft, the rotating shaft can pull the stop mechanism through screwing a nut sleeved on the threaded part, the upper cover connecting frame is prevented from rotating around the rotating shaft, the safety is improved, the stop mechanism can be disengaged after the nut is loosened, and the upper cover connecting frame can rotate around the rotating shaft, so that the cover can be opened or closed;

2) 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;

3) preferably, the connecting seat is directly arranged below the convex edge and fixedly connected with the spring seat, and the connecting seat and the spring seat are integrated, so that the integral structure is simplified, and an operator can open or close the cover more easily;

4) preferably, the spring seat is fixedly provided with at least one horizontal adjusting screw, and further preferably, the number of the horizontal adjusting screws is two, the two horizontal adjusting screws are arranged on the upper side and the lower side of the pin shaft, and the horizontal adjusting nuts are screwed on the horizontal adjusting screws and push 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;

5) preferably, the spiral spring is a variable torque ratio spiral spring, the general spring is a fixed torque ratio, the adoption of the variable torque ratio spiral spring can enable the self-standing effect of the cover to be better, and the covers have better elastic force feedback at different angles.

Drawings

FIG. 1 is a three-dimensional view of the present invention in an open state;

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

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

FIG. 4 is a graph of torque change for a variable torque ratio scroll spring.

In the figures 1-4, 1, a spring seat, 1-1, a convex edge, 1-11, a connecting seat, 2, an upper cover connecting frame, 2-1, an upper cover connecting piece, 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 piece, 3-31, a lower arc transition section, 4, a rotating shaft, 4-1, a torque adjusting block, 4-2, a limiting block, 5, a volute spring, 6, a stopping mechanism, 6-1, a limiting tooth, 6-2, a sawtooth part, 7, a pin shaft, 8, a nut, 9, a horizontal adjusting screw, 9-1, a horizontal adjusting nut and 10, a nylon sheet.

Detailed Description

The utility model is further described below with reference to the accompanying drawings;

referring to fig. 1-4, a cover opening balancer comprises an upper cover connecting frame 2, a base connecting frame 3 and a spring seat 1, wherein the base connecting frame 3 and the spring seat 1 are arranged below the upper cover connecting frame 2, a convex edge 1-1 extending outwards is arranged above the spring seat 1, the spring seat 1 and the convex edge 1-1 are of an integral structure, the upper cover connecting frame 2 is fixedly connected with the convex edge 1-1, the base connecting frame 3 is sleeved outside the spring seat 1, a rotating shaft 4 is arranged in the spring seat 1, the base connecting frame 3 is rotatably connected with the spring seat 1 through the rotating shaft 4, a volute spring 5 is arranged in the spring seat 1, one end of the volute spring 5 is fixedly connected with the upper inner wall of the convex edge 1-1, the other end of the volute spring 5 is fixedly connected with the rotating shaft 4, one end of the rotating shaft 4 is provided with a threaded portion, and a nut 8 is sleeved on the threaded portion, the end face of the threaded portion can be provided with a limiting block 4-2 to prevent the nut 8 from falling off, the other end of the rotating shaft 4 is provided with a stop mechanism 6, the upper cover connecting frame 2 is fixedly connected with the spring seat 1, the upper cover connecting frame 2 can rotate along with the spring seat 1, the volute spring 5 arranged in the spring seat 1 can store and release energy, the cover can be opened more easily by the elasticity of the volute spring 5, the nut 8 screwed and sleeved on the threaded portion can pull the stop mechanism 6, so that the upper cover connecting frame 2 cannot rotate along with the spring seat 1, further, the stop mechanism 6 comprises a limiting tooth 6-1 and a sawtooth portion 6-2 meshed with the limiting tooth 6-1, the limiting tooth 6-1 is fixedly arranged at the other end of the rotating shaft 4, and the sawtooth portion 6-2 is fixedly arranged at one end, facing the limiting tooth 6-1, of the spring seat 1, the nut 8 is screwed down, the limiting teeth 6-1 on the rotating shaft 4 are meshed with the sawtooth parts 6-2 on the spring seat 1, so that the spring seat 1 is clamped, the spring seat 1 cannot rotate, the safety of the cover opening balancer is improved, when the nut 8 is loosened, the limiting teeth 6-1 are separated from the sawtooth parts 6-2, the spring seat 1 recovers to rotate, the upper cover connecting frame 2 rotates along with the spring seat 1 to open or close the cover, the torque adjusting block 4-1 is arranged at one end, deviating from the spring seat 1, of the limiting teeth 6-1, and when the limiting teeth 6-1 are separated from the sawtooth parts 6-2, an operator can rotate the torque adjusting block 4-1 to enable the rotating shaft 4 to rotate, so that the torque of the volute spiral spring 5 is changed.

As shown in fig. 1-4, the upper cover connecting frame 2 is a U-shaped structure formed by connecting two upper cover connecting pieces 2-1 and upper connecting straight plates 2-2, the 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 lower connecting straight plates 3-2, the U-shaped opening of the base connecting frame 3 faces the spring seat 1, the front end of the lower connecting straight plate 3-2 is provided with two base connecting pieces 3-3, the U-shaped structure is simple and easy to manufacture, saves materials and simultaneously provides better support, the U-shaped structure is light and convenient to rotate as a connecting piece, further, the lower surface of the upper cover connecting piece 2-1 is provided with an upper arc transition section 2-11, 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, when the cover is closed, the upper arc transition sections 2-11 and the lower arc transition sections 3-31 are matched to provide a buffer section, a horizontal adjustment space is reserved for the cover, and the sealing performance of the cover when the cover is closed is improved.

As shown in fig. 1-4, the lower part of the convex edge 1-1 is fixedly connected with a connecting seat 1-11, the connecting seat 1-11 is connected with an upper cover connecting frame 2 through a pin 7, the pin 7 passes through two upper cover connecting pieces 2-1, the spring seat 1 is fixedly provided with at least one horizontal adjusting screw 9, the horizontal adjusting screw 9 is positioned near the pin 7, the horizontal adjusting screw 9 passes through the upper connecting straight plate 2-2, further, the number of the horizontal adjusting screws 9 is two, the two horizontal adjusting screws 9 are arranged at the upper side and the lower side of the pin 7, when the cover needs to be horizontally adjusted, the horizontal adjusting screw 9 is sleeved with the horizontal adjusting nut 9-1, the horizontal adjusting nut 9-1 is rotated to push the upper cover connecting frame 2 to rotate around the pin 7 within a certain angle range, the horizontal adjustment of the cover is realized, the cover is closed more tightly, and the sealing performance of the cover is improved.

As shown in fig. 1-4, a circular nylon sheet 10 is arranged between the side plate 3-1 and the spring seat 1, the nylon sheet 10 is sleeved on the rotating shaft 4, the circular nylon sheet 10 plays a role in axial limiting, the spring seat 1 cannot move axially, the surface of the nylon sheet 10 is smooth, friction between the spring seat 1 and the base connecting frame 3 is reduced, and the rotation is smoother.

As shown in fig. 1-4, the spiral spring 5 is a variable torque ratio spiral spring, and when the opening angle of the cover is 15 °, the torque of the spiral spring 5 is 33.6N · m; when the opening angle of the cover is 30 degrees, the torque of the spiral spring 5 is 125 N.m; when the opening angle of the cover is 45 degrees, the torque of the spiral spring 5 is 247.1 N.m; when the opening angle of the cover is 60 degrees, the torque of the spiral spring 5 is 375 N.m; when the opening angle of the cover is 75 degrees, the torque of the spiral spring 5 is 468 N.m; when the cover opening angle is 90 degrees, the torque of the spiral spring 5 is 500 N.m, the torque ratio of the spiral spring 5 changes along with the change of the opening angle, in fig. 4, the abscissa is the opening angle of the cover, the ordinate is the torque of the spiral spring 5, the variable torque ratio of the spiral spring can enable the cover to be better in autonomous stopping effect, and the covers at different angles have better elastic force feedback.

The foregoing examples are given solely for the purpose of illustrating the utility model and are not to be construed as limiting the embodiments, and other variations and modifications in form thereof will be suggested to those skilled in the art upon reading the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments and all such obvious variations and modifications are deemed to be within the scope of the utility model.

Claims

1. The utility model provides a uncap equalizer, includes upper cover link (2), sets up base link (3), spring holder (1) in upper cover link (2) below, its characterized in that: a convex edge (1-1) extending outwards is arranged above the spring seat (1), the spring seat (1) and the convex edge (1-1) are of an integral structure, the upper cover connecting frame (2) is fixedly connected with the convex edge (1-1), the outer side of the spring seat (1) is sleeved with a base connecting frame (3), a rotating shaft (4) is arranged in the spring seat (1), the base connecting frame (3) is rotatably connected with the spring seat (1) through the rotating shaft (4), 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 upper inner wall of the convex edge (1-1), the other end of the volute spiral spring (5) is fixedly connected with the rotating shaft (4), one end of the rotating shaft (4) is provided with a threaded part, the threaded portion is sleeved with a nut (8), and the other end of the rotating shaft (4) is provided with a stop mechanism (6).

2. A cap balancer 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).

3. A cap balancer as claimed in claim 2, 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).

4. A cap balancer as claimed in claim 2, wherein: the lower part of the convex edge (1-1) is fixedly connected with connecting seats (1-11), the connecting seats (1-11) are connected with the upper cover connecting frame (2) through pin shafts (7), and the pin shafts (7) penetrate through the two upper cover connecting pieces (2-1).

5. A cap balancer as claimed in claim 4, wherein: the spring seat (1) is fixedly provided with at least one horizontal adjusting screw rod (9), the horizontal adjusting screw rod (9) is located near the pin shaft (7), and the horizontal adjusting screw rod (9) penetrates through the upper connecting straight plate (2-2).

6. A cap balancer as claimed in claim 5, wherein: the number of the horizontal adjusting screw rods (9) is two, and the two horizontal adjusting screw rods (9) are arranged on the upper side and the lower side of the pin shaft (7).

7. A cap balancer as claimed in claim 1, wherein: the stop mechanism (6) comprises a limiting tooth (6-1) and a sawtooth part (6-2) meshed with the limiting tooth (6-1), the limiting tooth (6-1) is fixedly arranged at the other end of the rotating shaft (4), the sawtooth part (6-2) is fixedly arranged at one end, facing the limiting tooth (6-1), of the spring seat (1), and a torque adjusting block (4-1) is arranged at one end, away from the spring seat (1), of the limiting tooth (6-1).

8. A cap balancer as claimed in claim 2, wherein: a circular nylon sheet (10) is arranged between the side plate (3-1) and the spring seat (1), and the rotating shaft (4) is sleeved with the nylon sheet (10).

9. A cover balancer as claimed in any one of claims 1 to 8 wherein: the spiral spring (5) is a variable torque ratio spiral spring.