Screwing device for fire extinguisher
By designing an automated fire extinguisher tightening device, and using a servo motor to control the spacing and rotation of the clamps, the accuracy and efficiency problems of the traditional manual tightening method are solved, enabling adaptability and efficient operation of valves of different sizes.
Patent Information
- Application Number
- CN202520002503.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Traditional fire extinguisher valve tightening methods rely on manual operation, which makes it difficult to accurately control the tightening torque, resulting in poor sealing or valve damage. Furthermore, they are inefficient, cannot adapt to valves of different sizes, and cannot meet the requirements for efficient and automated operation.
A tightening device comprising a housing, an electric cylinder, a U-shaped plate, a motor, clamping plates, and a torque sensor was designed. The clamping plate spacing and rotation are controlled by a servo motor, and the device is combined with a conveying component to achieve automated tightening, ensuring precise torque control and stable clamping.
It achieves adaptability to valves of different sizes, ensures the accuracy and safety of tightening operations, improves work efficiency, and reduces labor and time costs.
Smart Images
Figure CN223734793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-fighting equipment manufacturing and maintenance technology, and in particular to a tightening device for fire extinguishers. Background Technology
[0002] In the production and maintenance of fire extinguishers, the valve tightening operation is crucial. Traditional fire extinguisher valve tightening methods mostly rely on manual operation, which has many drawbacks: Firstly, manual operation makes it difficult to accurately control the tightening torque, easily resulting in the valve not being tightened properly or being over-tightened. Insufficient tightening may lead to poor sealing of the fire extinguisher, affecting its storage and usage performance, and even causing it to malfunction in critical moments; while over-tightening may damage the valve, reduce the lifespan of the fire extinguisher, increase maintenance costs, and create safety hazards. Secondly, manual operation is inefficient, especially during large-scale production or batch maintenance of fire extinguishers, failing to meet the demands for fast and efficient operations, severely restricting production and maintenance progress, and increasing labor and time costs. Furthermore, traditional methods have poor adaptability to fire extinguisher valves of different sizes, often requiring multiple tools or complex adjustments, further reducing work efficiency and ease of operation.
[0003] Therefore, developing a tightening device for fire extinguishers that can precisely control the tightening torque, adapt to valves of different sizes, and achieve efficient automated operation is of great practical significance and has become a technical problem that urgently needs to be solved in this field.
[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings mentioned in the background section by providing a tightening device for fire extinguishers.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a tightening device for a fire extinguisher, comprising a housing, an electric cylinder, a U-shaped plate, a motor, a hollow plate, an adjusting component, two mounting bases, two clamping plates, a conveying component, two strip plates, two arc plates, and an adjusting component.
[0007] The electric cylinder is fixedly installed on the top inner wall of the housing. The hollow plate is set inside the housing and fixedly connected to the working end of the electric cylinder. The motor is fixedly installed inside the hollow plate. The U-shaped plate is fixedly installed on the output shaft of the motor. Both mounting seats are slidably installed on the U-shaped plate. The two clamping plates are respectively fixedly installed on the side of the two mounting seats that are close to each other. The adjustment component is set on the U-shaped plate and connected to the two mounting seats.
[0008] The housing has rectangular openings on both the front and rear sides. The conveying assembly is mounted on the housing and passes through the two rectangular openings. Two strip plates are slidably mounted on the inner walls of the two sides of the housing. Two arc plates are fixedly mounted on the side of the two strip plates that are close to each other. The adjustment assembly is located inside the housing and is connected to the two strip plates.
[0009] Preferably, the adjustment assembly includes a second motor and a bidirectional lead screw. The same bidirectional lead screw is rotatably mounted on the inner walls of both sides of the U-shaped plate. The bidirectional lead screw is threadedly connected to two mounting seats. The second motor is fixedly mounted on one side of the U-shaped plate. The output shaft of the second motor is axially fixedly connected to the bidirectional lead screw.
[0010] Preferably, multiple crossbars are fixedly installed on the inner walls of both sides of the U-shaped plate, and the multiple crossbars are slidably connected to two mounting seats.
[0011] Preferably, the conveying assembly includes a conveyor belt, two rotating shafts, four fixed plates, two conveying rollers, and a motor. Fixed plates are fixedly installed on both the front and rear sides of the housing. The same rotating shaft is rotatably installed on the two fixed plates located on the same side of the housing. Conveying rollers are fixedly sleeved on both rotating shafts. The same conveyor belt passing through two rectangular openings is drivenly connected to the two conveying rollers. A motor is fixedly installed on one of the fixed plates, and the output shaft of the motor is axially fixedly connected to the corresponding rotating shaft.
[0012] Preferably, the same support plate is fixedly installed on the inner wall of the housing and on the four fixed plates, and the top side of the support plate is in contact with the conveyor belt.
[0013] Preferably, the second adjustment component includes two connecting plates, two toothed plates, and a gear. Connecting plates are fixedly installed on the bottom sides of both strip plates, and toothed plates are fixedly installed on the bottom sides of both connecting plates. The two toothed plates are arranged parallel to each other. The same gear is rotatably installed on the inner walls of the front and rear sides of the housing, and both toothed plates mesh with the gear.
[0014] Preferably, the second adjustment component further includes a second electric cylinder, which is fixedly installed on one inner wall of the housing, and the working end of the second electric cylinder is fixedly installed on one of the connecting plates on the side away from the toothed plate.
[0015] Preferably, rubber pads are provided on the sides of the two clamping plates that are close to each other, and a torque sensor is fixedly installed on the side of the clamping plates and the rubber pads that are close to each other. A control panel is fixedly installed on the front side of the housing, and the torque sensor is electrically connected to the control panel.
[0016] Preferably, the two strip plates extend to the outside of the housing on the opposite sides and are respectively fixedly installed with limit plates.
[0017] Preferably, motor one, motor two and motor three are all servo motors.
[0018] The beneficial effects of this utility model are:
[0019] The adjustable component one allows for control of the distance between the two clamping plates, enabling flexible adjustment to accommodate fire extinguisher valves of different sizes and improving the device's versatility. Simultaneously, the motor one controls the rotation of the U-shaped plate, thereby controlling the valve's rotation and achieving tightening or loosening. Furthermore, the torque sensor effectively prevents valve damage due to improper operation, ensuring operational accuracy and safety. The conveying component and support plate work together to ensure continuous and stable delivery of the fire extinguisher. The adjustable component two, in conjunction with the strip plate, controls the two arc-shaped plates to stably clamp the fire extinguisher and position it in the center, facilitating stable clamping of the valve after the clamping plates move downwards. Since motor one, motor two in the adjustable component one, and motor three in the conveying component all utilize servo motors, precise control of the clamping torque is achieved, ensuring correct installation and safe operation of the fire extinguisher valve. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of a tightening device for a fire extinguisher proposed in this utility model;
[0022] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0023] Figure 3 This is a schematic diagram of the structure of the U-shaped plate, adjustment component, crossbar, mounting base, clamping plate, and rubber pad portion proposed in this utility model.
[0024] Figure 4 This is a structural schematic diagram of the conveying assembly and support plate portion proposed in this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the two parts proposed in this utility model: the strip plate, the arc plate, the limiting plate, and the adjusting component.
[0026] Figure 6 This is a schematic diagram of the support plate proposed in this utility model.
[0027] In the diagram: 1. Housing; 11. Control panel; 2. Electric cylinder one; 21. Hollow plate; 3. U-shaped plate; 31. Motor one; 4. Mounting base; 401. Double-acting lead screw; 402. Motor two; 403. Crossbar; 41. Clamping plate; 5. Conveyor belt; 51. Fixing plate; 52. Rotating shaft; 53. Conveyor roller; 54. Motor three; 55. Support plate; 6. Strip plate; 61. Arc plate; 611. Limiting plate; 62. Connecting plate; 63. Toothed plate; 64. Gear; 65. Electric cylinder two. Detailed Implementation
[0028] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] Reference Figure 1-6A tightening device for a fire extinguisher includes a housing 1, an electric cylinder 2, a U-shaped plate 3, a motor 31, a hollow plate 21, two mounting seats 4, two clamping plates 41, two strip plates 6, and two arc-shaped plates 61. The electric cylinder 2 is fixedly installed on the top inner wall of the housing 1. The hollow plate 21 is disposed inside the housing 1 and fixedly connected to the working end of the electric cylinder 2. The motor 31 is fixedly installed inside the hollow plate 21. The U-shaped plate 3 is fixedly installed on the output shaft of the motor 31. Both mounting seats 4 are slidably installed on the U-shaped plate 3. The two clamping plates 41 are respectively fixedly installed on the sides of the two mounting seats 4 that are close to each other. The same double-acting screw 401 is rotatably installed on the inner walls of both sides of the U-shaped plate 3. The double-acting screw 401 is threadedly connected to the two mounting seats 4. A motor 402 is fixedly installed on one side of the forming plate 3. The output shaft of the motor 402 is axially fixedly connected to the bidirectional lead screw 401. The distance between the two clamping plates 41 can be controlled as needed, so as to adapt well to the clamping operation of valves of different sizes. In order to avoid damage to the valve when the two clamping plates 41 clamp the fire extinguisher valve, and to monitor the torque in real time during the tightening process of the valve, so as to avoid the situation of not tightening or over-tightening, rubber pads are provided on the side of the two clamping plates 41 that are close to each other. A torque sensor is fixedly installed on the side of the clamping plate 41 and the rubber pad that are close to each other. A control panel 11 is fixedly installed on the front side of the housing 1. The torque sensor is electrically connected to the control panel 11.
[0030] Rectangular openings are provided on both the front and rear sides of the housing 1. Fixing plates 51 are fixedly installed on both sides of the housing 1. A single rotating shaft 52 is rotatably mounted on the two fixing plates 51 located on the same side of the housing 1. Conveying rollers 53 are fixedly sleeved on both rotating shafts 52. A conveyor belt 5 passing through the two rectangular openings is driven and connected to the two conveying rollers 53. A motor 54 is fixedly installed on one of the fixing plates 51. The output shaft of the motor 54 is axially fixedly connected to the corresponding rotating shaft 52, enabling continuous conveying of fire extinguishers requiring tightening, thereby effectively improving work efficiency and reducing the workload of operators. Two strip plates 6 are slidably installed on the inner walls of both sides of the housing 1, and two arc plates 61 are fixedly installed on the two strip plates 52. On the side where the two strip plates 6 are close to each other, a connecting plate 62 is fixedly installed on the bottom side of each of the two connecting plates 62. A toothed plate 63 is fixedly installed on the bottom side of each of the two connecting plates 62. The two toothed plates 63 are arranged parallel to each other. The same gear 64 is rotatably installed on the inner walls of the front and rear sides of the housing 1. The two toothed plates 63 mesh with the gear 64. When the gear 64 rotates, it can control the two arc plates 61 to move synchronously towards each other or away from each other. This can ensure that the fire extinguisher is stably clamped and kept in the center position. An electric cylinder 65 is fixedly installed on the inner wall of one side of the housing 1. The working end of the electric cylinder 65 is fixedly installed on the side of one of the connecting plates 62 away from the toothed plate 63. It can control the gear 64 to operate in forward and reverse directions as needed.
[0031] In this embodiment, in order to ensure that the two mounting seats 4 can slide stably on the U-shaped plate 3, while ensuring the working stability of the strip plate 6, and to avoid the strip plate 6 from detaching from the side wall of the housing 1, multiple crossbars 403 are fixedly installed on the inner walls of both sides of the U-shaped plate 3. The multiple crossbars 403 are slidably connected to the two mounting seats 4. The two strip plates 6 extend to the outside of the housing 1 on the side that is far away from each other and are respectively fixedly installed with limit plates 611.
[0032] In this embodiment, in order to ensure the stability of the conveyor belt 5 in transporting the fire extinguisher, the same support plate 55 is fixedly installed on the inner side wall of the housing 1 and on the four fixed plates 51, and the top side of the support plate 55 is in contact with the conveyor belt 5.
[0033] In this embodiment, in order to ensure the accuracy of the rotation angle of the clamping plate 41 and the adjustment of the distance between the two clamping plates 41, as well as the precise adjustment of the conveying distance of the conveyor belt 5, motor 1 31, motor 2 402 and motor 3 54 are all servo motors.
[0034] The circuits, electronic components, and module mechanisms involved all employ existing technologies, which can be fully implemented by those skilled in the art, and need no further explanation. The content protected by this application does not involve any improvement to the software, circuits, or methods.
[0035] Working principle: In use, first connect the power supply, place the fire extinguisher to be tightened on the conveyor belt 5, then the motor 3 54 controls the rotating shaft 52 to drive the conveyor roller 53 to rotate, so that the conveyor belt 5 transports the fire extinguisher. After transporting it to the position between the two arc plates 61, stop. Then, the electric cylinder 2 controls one of the connecting plates 62 to move towards the conveyor belt 5. With the cooperation of the toothed plate 63 and the gear 64, the two strip plates 6 can drive the corresponding arc plates 61 to clamp the fire extinguisher and adjust it to the center position. The electric cylinder 1 2 controls the hollow plate 21 to drive the U-shaped plate 3 to move downward synchronously, and the motor 1 31 controls the U-shaped plate 3. Rotate to ensure that the two clamping plates 41 are in a suitable clamping position on both sides of the valve. Then, control the bidirectional lead screw 401 to rotate through the second motor 402, so that the two mounting seats 4 drive the corresponding clamping plates 41 to move towards each other and stably clamp the valve. Then, control the U-shaped plate 3 to rotate through the first motor 31, so as to realize the valve tightening operation. After the tightening process is completed, control the clamping plates 41 and the arc plate 61 to disengage from it and continue to transport it through the conveyor belt 5. This not only allows the fire extinguisher that has been tightened to be output from another rectangular opening, but also allows other fire extinguishers that need to be tightened to be transported to the position to be tightened.
[0036] The tightening device for fire extinguishers provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A screwing device for fire extinguishers, characterized in that, The shell (1), the electric cylinder (2), the U-shaped plate (3), the motor (31), the hollow plate (21), the adjusting assembly one, the two mounting seats (4), the two clamping plates (41), the conveying assembly, the two strip-shaped plates (6), the two arc-shaped plates (61) and the adjusting assembly two are provided. The electric cylinder (2) is fixedly installed on the top inner wall of the shell (1), the hollow plate (21) is arranged in the shell (1) and is fixedly connected with the working end of the electric cylinder (2), the motor (31) is fixedly installed in the hollow plate (21), the U-shaped plate (3) is fixedly installed on the output shaft of the motor (31), the two mounting seats (4) are both slidably installed on the U-shaped plate (3), the two clamping plates (41) are respectively fixedly installed on the sides of the two mounting seats (4) close to each other, and the adjusting assembly one is arranged on the U-shaped plate (3) and connected with the two mounting seats (4). The front and rear sides of the shell (1) are both provided with rectangular openings, the conveying assembly is arranged on the shell (1) and penetrates through the two rectangular openings, the two strip-shaped plates (6) are respectively slidably installed on the inner walls of the two sides of the shell (1), the two arc-shaped plates (61) are respectively fixedly installed on the sides of the two strip-shaped plates (6) close to each other, and the adjusting assembly two is arranged in the shell (1) and connected with the two strip-shaped plates (6).
2. A screwing device for fire extinguishers according to claim 1, characterized in that: The adjusting assembly one comprises the motor (402) and the bidirectional screw rod (401), the same bidirectional screw rod (401) is rotatably installed on the inner walls of the two sides of the U-shaped plate (3), the bidirectional screw rod (401) is in threaded connection with the two mounting seats (4), the motor (402) is fixedly installed on one side of the U-shaped plate (3), and the output shaft of the motor (402) is in axial fixed connection with the bidirectional screw rod (401).
3. A screwing device for fire extinguisher according to claim 1, wherein: A plurality of cross rods (403) are fixedly installed on the inner walls of the two sides of the U-shaped plate (3) and are in sliding connection with the two mounting seats (4).
4. A screwing device for fire extinguisher according to claim 1, wherein: The conveying assembly comprises the conveying belt (5), the two rotating shafts (52), the four fixed plates (51), the two conveying rollers (53) and the motor (54), the fixed plates (51) are fixedly installed on the front and rear sides of the shell (1), the same rotating shaft (52) is rotatably installed on the two fixed plates (51) on the same side of the shell (1), the conveying rollers (53) are fixedly arranged on the two rotating shafts (52), the same conveying belt (5) penetrating through the two rectangular openings is in transmission connection with the two conveying rollers (53), the motor (54) is fixedly installed on one of the fixed plates (51), and the output shaft of the motor (54) is in axial fixed connection with the corresponding rotating shaft (52).
5. A screwing device for fire extinguishers according to claim 4, characterized in that: The same support plate (55) is fixedly installed on the inner side wall of the shell (1) and the four fixed plates (51), and the top side of the support plate (55) is in movable contact with the conveying belt (5).
6. A screwing device for fire extinguisher according to claim 1, wherein: The adjusting assembly two comprises two connecting plates (62), two toothed plates (63) and a gear (64), the bottom side of each of the two strip-shaped plates (6) is fixedly provided with a connecting plate (62), the bottom side of each of the two connecting plates (62) is fixedly provided with a toothed plate (63), the two toothed plates (63) are arranged in parallel with each other, the same gear (64) is rotatably arranged on the inner walls of the front and rear sides of the shell (1), and the two toothed plates (63) are engaged with the gear (64).
7. A screwing device for fire extinguishers according to claim 6, characterized in that: The adjusting assembly two further comprises an electric cylinder two (65), the electric cylinder two (65) is fixedly arranged on the inner wall of one side of the shell (1), and the working end of the electric cylinder two (65) is fixedly arranged on the side, away from the toothed plate (63), of one of the connecting plates (62).
8. A screwing device for fire extinguisher according to claim 1, wherein: The side, close to each other, of the two clamping plates (41) is provided with a rubber pad, the side, close to each other, of the clamping plate (41) and the rubber pad is fixedly provided with a torque sensor, the front side of the shell (1) is fixedly provided with a control panel (11), and the torque sensor is electrically connected with the control panel (11).
9. A screwing device for fire extinguisher according to claim 1, wherein: The side, away from each other, of the two strip-shaped plates (6) extends to the outside of the shell (1) and is respectively fixedly provided with a limiting plate (611).
10. A screwing device for fire extinguishers according to claim 2 or 4, characterized in that: The electric motor one (31), the electric motor two (402) and the electric motor three (54) are all servo motors.