Scraping device for elevator counterweight filler production
By introducing a return port and a pneumatic drive device into the leveling device for elevator counterweight production, the problems of pitting and air removal difficulties in traditional leveling devices have been solved, achieving higher quality leveling effect and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHUANGYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2024-11-20
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional counterweight leveling devices are prone to leaving pits during the leveling process and cannot effectively remove air between raw materials, affecting product quality.
A scraping device for elevator counterweight production was designed. By setting a return port and a pneumatic pushing device on the push plate, excess material is piled up and scraped twice. The guide chute and handle design improve the guiding and stability of the push plate.
It effectively prevents pits from forming during the leveling process, improves product quality, and enhances product molding quality and production efficiency by removing air from the raw materials.
Smart Images

Figure CN224116366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of production leveling devices, and in particular to a leveling device for elevator counterweight production. Background Technology
[0002] Counterweights are heavy objects used to increase their own weight to maintain balance. Elevator counterweights are also called weight balancing systems. The main function of this system is to relatively balance the weight of the car. During elevator operation, it can keep the weight difference between the car and the counterweight within a limit, ensuring the normal operation of the elevator's traction drive. Counterweights are an important component of the weight balancing system. Due to the special nature of the elevator's operating environment, counterweights need to have high toughness, high pressure resistance, high impact resistance, and high corrosion resistance.
[0003] Traditional flat scraping devices may leave pits after scraping and cannot remove air between raw materials, which may cause quality problems in the later stages of product development.
[0004] In view of this, this paper studies and improves the existing problems, and provides a scraping device for elevator counterweight production. The device has a reasonable structural design, high stability, and can be used in various aspects. The aim of this technology is to solve the problems and improve the practical value. Utility Model Content
[0005] This invention utilizes a return port to allow excess material to accumulate in front of the push plate during push-out. Some material will then re-enter the rear end through the return port, preventing pits from being created when the front push plate pushes past. After backfilling, the material is then scraped smooth again by the rear push plate, further improving product quality. This invention provides a scraping device for elevator counterweight production.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a leveling device for elevator counterweight production, comprising a shaping groove, a sliding groove for guiding the horizontal movement of a push plate at the upper end of the shaping groove, a push plate for scraping material at the upper end of the sliding groove, a connecting block A for guiding the movement of the push plate at the lower end of the push plate, a return port for filling material opening on one side of the push plate, a support handle for support fixedly connected to the rear end of the push plate, a pushing device at the rear end of the push plate, a storage trough for receiving material fixedly connected to the side away from the pushing device, a motor for driving material at the lower end of the storage trough, a transmission rod for transmission connected to the driving end of the motor, a reciprocating screw fixedly connected to the end of the transmission rod away from the motor, a limit block provided at the connection between the transmission rod and the reciprocating screw, a connecting block B connected to the upper shaping groove provided around the periphery of the reciprocating screw, a fixing plate fixedly connected to the lower end of the shaping groove away from the motor, and the fixing plate being movably connected to the pushing device.
[0007] Preferably, the shaping groove is rectangular in shape and is composed of four sets of movable plates spliced together.
[0008] Preferably, the guide chute has two sets at the upper end of the shaping groove, the connecting block A is movably connected inside the chute and maintains a sliding fit with it, the push plate consists of two sets of push plates, the return port is opened at the front end of the push plate, the two sets of return ports are set on the same horizontal plane, and the return port is an arc surface.
[0009] Preferably, the pushing device has a pneumatic valve, an air inlet pipe is fixedly connected to one side of the pneumatic valve, a one-way valve is fixedly connected to one side of the air inlet pipe, a pressure relief valve is fixedly connected to one side of the pneumatic valve, located opposite the air inlet pipe, a hose is fixedly connected to the upper end of the pneumatic valve, a pneumatic chamber is fixedly connected to the output end of the hose, four springs are fixedly connected to the inner wall of the pneumatic chamber, and a push rod is fixedly connected to the other end of the spring away from the inner wall, and the push rod is fixedly connected to the push plate.
[0010] Preferably, the handle is fixedly connected to the center of the upper end of the air pressure valve, the handle has a telescopic function, and each set of connecting pipes has a damping effect. The upper end of the handle is connected to the outer wall of the air pressure chamber and fits into the outer wall of the air pressure chamber.
[0011] Preferably, the limiting blocks are fixedly connected in two sets, and the distance between the two sets of limiting blocks is relatively short.
[0012] Preferably, the connecting block B is connected to the reciprocating lead screw via a ball nut pair, and there are three sets of connecting blocks B. The fixing plate is connected to the air intake pipe via a connecting rod, and the connecting rod is movably connected inside the air intake pipe. The other end of the connecting rod is fixedly connected to the fixing plate.
[0013] This utility model has the following beneficial effects: The shaping groove is composed of four sets of movable plates, which makes it easy to disassemble the shaping groove after the counterweight is shaped, and also makes it easy to remove the counterweight. The sliding groove improves the guiding performance of the push plate during operation through the connecting block A, preventing it from deviating. When the push plate is pushed out, excess material will accumulate in front of the push plate, and some material will enter the rear end through the return port, preventing pits caused by the front push plate pushing past, thus further improving product quality. The handle has a telescopic function, which facilitates the support of the air pressure chamber and improves the stability during use. At the same time, when the operator adjusts the height of the shaping groove as needed, the handle can also be extended and retracted according to the height, improving the convenience of use. Attached Figure Description
[0014] Figure 1 This is an overall appearance view of a leveling device for producing elevator counterweights proposed in this utility model;
[0015] Figure 2This is a side view of a leveling device for producing elevator counterweights according to the present invention.
[0016] Figure 3 This is a cross-sectional view of a leveling device for producing elevator counterweights according to this utility model;
[0017] Figure 4 This is a cross-sectional view of a leveling device for producing elevator counterweights according to this utility model;
[0018] Figure 5 This utility model presents a diagram of the pushing device of a leveling device for producing elevator counterweights.
[0019] Legend:
[0020] 1. Shaping groove; 2. Slide groove; 3. Push plate; 4. Connecting block A; 5. Return port; 6. Handle; 7. Pushing device; 701. Air pressure valve; 702. Air inlet pipe; 703. Check valve; 704. Pressure relief valve; 705. Hose; 706. Air pressure chamber; 707. Spring; 708. Push rod; 8. Storage tank; 9. Motor; 10. Transmission rod; 11. Reciprocating screw; 12. Limit block; 13. Connecting block B; 14. Fixing plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0023] Reference Figures 1-5 This utility model provides an embodiment of a scraping device for producing elevator counterweights, comprising a shaping groove 1, a sliding groove 2 for guiding the horizontal movement of a push plate 3 at the upper end of the shaping groove 1, a push plate 3 for scraping material at the upper end of the sliding groove 2, a connecting block A4 for guiding the movement of the push plate 3 at the lower end of the push plate 3, a return port 5 for filling material on one side of the push plate 3, a support handle 6 fixedly connected to the rear end of the push plate 3, a pushing device 7 at the rear end of the push plate 3, and a fixedly connected [unclear - possibly a component or part] on the side away from the pushing device 7. A storage tank 8 for receiving materials is provided at the lower end of the storage tank 8, and a motor 9 for driving is provided at the driving end of the motor 9. A transmission rod 10 for transmission is connected to the driving end of the transmission rod 10 away from the motor 9. A reciprocating lead screw 11 is fixedly connected to the end of the transmission rod 10 away from the motor 9. A limit block 12 is provided at the connection between the transmission rod 10 and the reciprocating lead screw 11. A connecting block B13 connected to the upper shaping groove 1 is provided around the reciprocating lead screw 11. A fixing plate 14 is fixedly connected to the lower end of the shaping groove 1 away from the motor 9. The fixing plate 14 is movably connected to the pushing device 7.
[0024] In an optional embodiment: the shaping groove 1 is rectangular in shape and is composed of four sets of movable plates spliced together, which makes it convenient to disassemble the shaping groove 1 after the counterweight is shaped, and also makes it convenient to remove the counterweight.
[0025] In an optional embodiment: the guide chute 2 has two sets of openings at the upper end of the shaping groove 1, and the connecting block A4 is movably connected inside the chute 2 to maintain a sliding fit with it, which improves the guiding performance of the push plate 3 during operation and prevents it from deviating. The push plate 3 consists of two sets of push plates 3, one in front and one in back. The return port 5 is opened at the front end of the push plate 3. The two sets of return ports 5 are set on the same horizontal plane, and the return port 5 is an arc surface. When the push plate 3 is pushed out, the excess material will pile up in front of the push plate 3, and some material will enter the rear end through the return port 5, preventing the front push plate 3 from causing pits when it pushes past. After backfilling, it is then scraped smooth again by the rear push plate 3, which further improves the product quality.
[0026] In an optional embodiment: the pushing device 7 has a pneumatic valve 701, an air inlet pipe 702 is fixedly connected to one side of the pneumatic valve 701, a one-way valve 703 is fixedly connected to one side of the air inlet pipe 702, a pressure relief valve 704 is fixedly connected to one side of the pneumatic valve 701, located opposite the air inlet pipe 702, a hose 705 is fixedly connected to the upper end of the pneumatic valve 701, a pressure chamber 706 is fixedly connected to the output end of the hose 705, and four springs 707 are fixedly connected to the inner wall of the pressure chamber 706. A push rod 708 is fixedly connected to the other end of the spring 707 away from the inner wall. The push rod 708 is fixedly connected to the push plate 3. When the shaping groove 1 reciprocates, it will drive the connecting rod to reciprocate continuously. Because the one-way valve 703 can only allow air to enter but not exit, when the connecting rod is pushed, it will continuously inflate the inside of the pneumatic valve 701, causing the internal pressure of the pneumatic valve 701 to continuously increase, thereby continuously delivering air through the hose 705. Air enters the pressure chamber 706, causing the internal pressure to continuously increase. As the pressure inside the pressure chamber 706 increases, the push rod 708 gradually pushes outwards, pushing the push plate 3 to level the surface. When the push rod 708 pushes the push plate 3 to its limit, the pressure chamber 706 can no longer receive air, causing the pressure inside the pressure valve 701 to continuously increase. When the pressure reaches a certain value, the pressure relief valve 704 is opened by the internal air pressure, releasing the pressure inside the pressure valve 701. The pressure relief inside the pressure valve 701 simultaneously causes the pressure chamber 706 to depressurize. After the pressure chamber 706 depressurizes, because the rear end of the push rod 708 is connected to the inner wall of the pressure chamber 706 via a spring 707, it gradually retracts under the tension of the spring 707 after the pressure is lost. Simultaneously, the push plate 3 retracts, achieving the start-up leveling and retraction process. This saves the worker's energy and improves production efficiency.
[0027] In an optional embodiment: the handle 6 is fixedly connected to the center of the upper end of the air pressure valve 701. The handle 6 has a telescopic function, and each set of connecting pipes has a damping effect. The upper end of the handle 6 is connected to and fits the outer wall of the air pressure chamber 706, which facilitates the support of the air pressure chamber 706 and improves the stability during use. At the same time, when the operator adjusts the height of the shaping groove 1 as needed, the handle 6 can also extend and retract according to its height, which improves the convenience of use.
[0028] In an optional embodiment: two sets of limiting blocks 12 are fixedly connected, and the distance between the two sets of limiting blocks 12 is relatively short. When the connecting block B13 moves, the reciprocating motion is faster due to the short distance between the limiting blocks 12, thereby generating shaking vibration.
[0029] In an optional embodiment: the connecting block B13 is connected to the reciprocating lead screw 11 via a ball nut pair, and there are three sets of connecting blocks B13. The fixing plate 14 is connected to the air intake pipe 702 via a connecting rod, and the connecting rod is movably connected inside the air intake pipe 702. The other end of the connecting rod is fixedly connected to the fixing plate 14. When the motor 9 drives the transmission rod 10, the transmission rod 10 will drive the reciprocating lead screw 11 to rotate. When the reciprocating lead screw 11 rotates, it will drive the connecting block B13 to reciprocate. The upper shaping groove 1 is connected, and the distance between the aforementioned limiting blocks 12 allows the connecting block B13 to reciprocate quickly. When it reciprocates and vibrates, it shakes the material inside the shaping groove 1, thereby expelling the air inside the material and improving its quality after molding. While the shaping groove 1 moves, because the fixing plate 14 is fixedly connected to the shaping groove 1, the fixing plate 14 will move synchronously with the shaping groove 1. The fixing plate 14 is connected to the air inlet pipe 702 through a connecting rod, and it will continuously inflate the inside when it moves.
[0030] Working principle and process: After the worker puts the raw material into the shaping tank 1, the motor 9 is started. When the motor 9 rotates, it will drive the reciprocating screw 11 to rotate through the transmission rod 10. When the reciprocating screw 11 rotates, it will drive the connecting block B13 to reciprocate. When the connecting block B13 moves, it will drive the upper shaping tank 1 to move synchronously. When the shaping tank 1 moves, it will drive the fixed plate 14 to move, thereby inflating the pushing device 7. When inflating, the push plate 3 will be pushed out to scrape the raw material flat.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A leveling device for producing elevator counterweights, comprising a shaping groove (1), characterized in that: The upper end of the shaping groove (1) is provided with a sliding groove (2) for guiding the horizontal movement of the push plate (3). The upper end of the sliding groove (2) is provided with a push plate (3) for scraping material. The lower end of the push plate (3) is connected with a connecting block A (4) for guiding the movement of the push plate. The push plate (3) is provided with a return port (5). The rear end of the push plate (3) is fixedly connected with a support handle (6). The rear end of the push plate (3) is provided with a pushing device (7). The side away from the pushing device (7) is fixedly connected with a storage tank (8) for receiving material. The lower end of the storage tank (8) is provided with a useful... The motor (9) is driven by a transmission rod (10) connected to the driving end of the motor (9). A reciprocating screw (11) is fixedly connected to the end of the transmission rod (10) away from the motor (9). A limit block (12) is provided at the connection between the transmission rod (10) and the reciprocating screw (11). A connecting block B (13) connected to the upper shaping groove (1) is provided around the reciprocating screw (11). A fixing plate (14) is fixedly connected to the lower end of the shaping groove (1) away from the motor (9). The fixing plate (14) is movably connected to the pushing device (7).
2. The leveling device for elevator counterweight production according to claim 1, characterized in that: The shaping groove (1) is rectangular in shape and is composed of four sets of movable plates spliced together.
3. The leveling device for elevator counterweight production according to claim 1, characterized in that: The guide chute (2) has two sets of openings at the upper end of the shaping groove (1). The connecting block A (4) is movably connected inside the chute (2) and maintains a sliding fit with it. The push plate (3) consists of two sets of push plates (3) at the front and rear. The return port (5) is opened at the front end of the push plate (3). The two sets of return ports (5) are set on the same horizontal plane, and the return port (5) is an arc surface.
4. A leveling device for elevator counterweight production according to claim 1, characterized in that: The pushing device (7) has a pneumatic valve (701), an air inlet pipe (702) is fixedly connected to one side of the pneumatic valve (701), a one-way valve (703) is fixedly connected to one side of the air inlet pipe (702), a pressure relief valve (704) is fixedly connected to one side of the pneumatic valve (701), which is located opposite to the air inlet pipe (702), a hose (705) is fixedly connected to the upper end of the pneumatic valve (701), a pneumatic chamber (706) is fixedly connected to the output end of the hose (705), a spring (707) is fixedly connected to the inner wall of the pneumatic chamber (706), and there are four sets of springs (707). A push rod (708) is fixedly connected to the other end of the spring (707) away from the inner wall, and the push rod (708) is fixedly connected to the push plate (3).
5. A leveling device for elevator counterweight production according to claim 1, characterized in that: The handle (6) is fixedly connected to the center of the upper end of the air pressure valve (701). The handle (6) has a telescopic function and a damping effect between each set of connecting pipes. The upper end of the handle (6) is connected to the outer wall of the air pressure chamber (706) and matches the outer wall of the air pressure chamber (706).
6. A leveling device for elevator counterweight production according to claim 1, characterized in that: The limiting block (12) is fixedly connected in two sets, and the distance between the two sets of limiting blocks (12) is relatively short.
7. A leveling device for elevator counterweight production according to claim 1, characterized in that: The connecting block B (13) is connected to the reciprocating screw (11) through a ball nut pair. There are three sets of connecting blocks B (13). The fixing plate (14) is connected to the air intake pipe (702) through a connecting rod. The connecting rod is movably connected inside the air intake pipe (702). The other end of the connecting rod is fixedly connected to the fixing plate (14).