Semi-automatic efficient threading machine for fire-fighting pipeline
By introducing internal and external cleaning mechanisms and a vacuum cleaner into the fire-fighting pipe threading machine, the wear problem caused by debris adhesion during the fire-fighting pipe threading process is solved, and the cleaning of the die and the outer surface of the pipe is achieved, ensuring the thread processing accuracy and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-31
AI Technical Summary
Fine debris generated during the threading process of fire protection pipelines can easily adhere to the die and the outer surface of the pipe, causing wear, affecting the thread processing accuracy and sealing performance, failing to meet the connection sealing requirements of fire protection engineering, and potentially leading to problems such as water leakage.
A semi-automatic high-efficiency threading machine for fire-fighting pipelines was designed, equipped with internal and external cleaning mechanisms and a vacuum cleaner. The cleaning mechanism is driven by a motor to rotate and insert into the threading disc to clean the dies and debris on the outer surface of the pipe. The debris is collected by the vacuum cleaner, keeping the cutting edge of the dies and the outer surface of the pipe clean.
Ensure that the cutting edge of the die remains clean and sharp at all times to prevent wear on the outer surface of the pipe, improve the accuracy and sealing of thread processing, and avoid debris from affecting the threading operation environment and quality.
Smart Images

Figure CN224058864U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire protection pipeline technology, and specifically relates to a semi-automatic high-efficiency threading machine for fire protection pipelines. Background Technology
[0002] A threading machine, also known as an electric threading machine, is a specialized mechanical device used to process various metal pipe threads. Its working principle is to use a motor-driven die to cut the pipe, thereby forming a thread of specific specifications and precision at the end of the pipe. In pipe connection operations, the quality of the thread produced by the threading machine directly determines the firmness and sealing of the pipe connection.
[0003] During the threading process of fire protection pipes, a large number of fine debris are generated. These debris easily adhere to the die and the threaded opening of the fire protection pipe. As the die continuously contacts the outer surface of the pipe during operation, the fine debris adhering to the die will act on the outer surface of the pipe. Over time and with the continuous threading operation, the outer surface of the fire protection pipe will wear down due to the friction of these debris. The worn outer surface of the fire protection pipe leads to a decrease in the thread machining accuracy, resulting in poor sealing between fire protection pipes. This makes it impossible to meet the strict requirements of fire protection engineering for the sealing of fire protection pipe connections. In the event of a fire, problems such as water leakage may occur, affecting the fire extinguishing effect and failing to effectively protect the safety of life and property.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a semi-automatic high-efficiency threading machine for fire protection pipelines to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a semi-automatic high-efficiency threading machine for fire-fighting pipelines, comprising a support frame, a chuck on one side of the top of the support frame, symmetrical guide rails on the top of the support frame, sliders on the outer walls of both guide rails, a manual rotation mechanism on one of the sliders, a threading disc above and between the two sliders, the threading disc having multiple dies, a reciprocating pulling mechanism between the two sliders, a connecting mechanism at the other end of the reciprocating pulling mechanism, the connecting mechanism being slidably mounted on the two guide rails, a drive motor on the connecting mechanism, an internal and external cleaning mechanism on the drive motor, and a vacuum cleaner connected to the internal and external cleaning mechanism through the connecting mechanism, the vacuum cleaner being installed inside the connecting mechanism.
[0008] Furthermore, the reciprocating pulling mechanism includes a connecting rod, with both ends of the connecting rod fixedly mounted on the two sliders respectively, and a first gear rack fixedly mounted on one end of the connecting rod.
[0009] Furthermore, a rotating gear meshes with the first gear rack, a support rod is rotatably mounted on the central axis of the rotating gear, the support rod is fixedly mounted on the support frame, and a second gear rack also meshes with the rotating gear.
[0010] Furthermore, the connecting mechanism includes a movable frame that is slidably mounted on the two guide rails, and one end of the second gear rack is fixedly mounted on the movable frame.
[0011] Furthermore, a circular cover is fixedly installed at one end of the movable frame, the drive motor is fixedly installed at the top of the movable frame, the vacuum cleaner is installed inside the movable frame, and the vacuum cleaner is connected to the circular cover.
[0012] Furthermore, the internal and external cleaning mechanism includes a connecting disc, which is rotatably mounted on the circular cover and fixedly mounted on the output shaft of the drive motor.
[0013] Furthermore, one end of the connecting plate is connected to a vent pipe, and the inner and outer walls of the vent pipe away from the connecting plate are respectively provided with multiple pipe outer wall cleaning bristles and multiple tooth cleaning bristles.
[0014] Furthermore, the vent pipe is provided with multiple chip inlet holes, and the multiple chip inlet holes are arranged alternately with the multiple tooth cleaning bristles.
[0015] This utility model has the following beneficial effects:
[0016] After the cutting process is completed, the manual rotating mechanism is operated again to move the slider back to the initial position. During this process, the slider drives some parts of the reciprocating pulling mechanism to move, causing the reciprocating pulling mechanism to pull the drive motor, internal and external cleaning mechanism and vacuum cleaner closer to the slider. At the same time, the drive motor starts and drives the internal and external cleaning mechanism to start rotating. During the movement, the internal and external cleaning mechanism is inserted into the threading cavity of the threading disc. On the one hand, the moving and rotating internal and external cleaning mechanism cleans the debris generated by the threading operation of multiple dies, ensuring that the cutting edge of the die is always clean and sharp, and ensuring the thread processing accuracy. On the other hand, the internal and external cleaning mechanism will be placed on the outer circle surface of the fire pipe and clean the outer circle surface of the fire pipe to prevent debris from adhering and avoid wear on the outer circle surface due to friction of debris.
[0017] During the cleaning process, the vacuum cleaner connects with the internal and external cleaning mechanisms through a connecting mechanism, promptly sucking up the debris and collecting it in the dust bag inside the vacuum cleaner, thus preventing the debris from scattering again and affecting the threading operation environment and quality.
[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the guide rail and connecting mechanism of this utility model;
[0022] Figure 3 This is a schematic diagram of the overall reciprocating pulling mechanism of this utility model;
[0023] Figure 4 This is a schematic diagram of the overall internal and external cleaning mechanism of this utility model;
[0024] Figure 5 This is a partial cross-sectional view of the circular cover of this utility model;
[0025] Figure 6 This is a schematic diagram of the threading disc of this utility model.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Support frame; 2. Chuck; 3. Guide rail; 4. Slider; 5. Manual rotation mechanism; 6. Threading disc; 7. Die; 8. Reciprocating pulling mechanism; 801. Connecting rod; 802. First gear rack; 803. Rotating gear; 804. Support rod; 805. Second gear rack; 9. Connecting mechanism; 901. Moving frame; 902. Round cover; 10. Drive motor; 11. Internal and external cleaning mechanism; 1101. Connecting disc; 1102. Vent pipe; 1103. Pipe outer wall cleaning brush; 1104. Die cleaning brush; 1105. Chip inlet; 12. Vacuum cleaner. Detailed Implementation
[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0030] Please see Figures 1-6 As shown, this utility model is a semi-automatic high-efficiency fire-fighting pipeline threading machine, including a support frame 1, a chuck 2 on one side of the top of the support frame 1, guide rails 3 symmetrically arranged on the top of the support frame 1, sliders 4 on the outer walls of the two guide rails 3, a hand-turning mechanism 5 on one of the two sliders 4, a threading disc 6 above the two sliders 4, and multiple dies 7 on the threading disc 6.
[0031] During the threading operation, one end of the fire-fighting pipe to be processed is first fixed on the chuck 2. The chuck 2 firmly fixes the pipe through its own clamping mechanism, ensuring that the pipe will not shift or shake during the threading process. The top of the support frame 1 is symmetrically equipped with guide rails 3, and the outer walls of the two guide rails 3 are equipped with sliders 4. One of the two sliders 4 is equipped with a hand-operated mechanism 5. The operator can flexibly control the movement position of the slider 4 on the guide rail 3 by rotating the hand-operated mechanism 5. A threading disc 6 is located above the two sliders 4, and the threading disc 6 is equipped with multiple dies 7. After the chuck 2 fixes the fire-fighting pipe, the motor is started and rotated, and then the speed is reduced by the gearbox, so that the motor can drive the fire-fighting pipe to rotate slowly. Then, the slider 4 is driven by the hand-operated mechanism 5 to slide on the guide rail 3, so that the threading disc 6 gradually approaches the end of the fire-fighting pipe. At this time, the multiple dies 7 simultaneously cut and process the end of the pipe, and the end of the pipe is gradually processed with threads of specific specifications and precision. The above description is the existing technology for threading fire-fighting pipes, and will not be elaborated further here.
[0032] In one embodiment, for the aforementioned slider 4, a reciprocating pulling mechanism 8 is provided between the two sliders 4, and a connecting mechanism 9 is provided at the other end of the reciprocating pulling mechanism 8. The connecting mechanism 9 is slidably mounted on the two guide rails 3, and a drive motor 10 is provided on the connecting mechanism 9. An internal and external cleaning mechanism 11 is provided on the drive motor 10, and a vacuum cleaner 12 is connected to the internal and external cleaning mechanism 11 through the connecting mechanism 9. The vacuum cleaner 12 is installed inside the connecting mechanism 9.
[0033] During the threading process of the fire-fighting pipe described above, when the hand-operated mechanism 5 drives the slider 4 to slide on the guide rail 3 and brings the threading disc 6 closer to the end of the fire-fighting pipe, the movement of the slider 4 will drive some parts of the reciprocating pulling mechanism 8 to move. This causes another part of the reciprocating pulling mechanism 8 to pull the connecting mechanism 9 to slide on the guide rail 3 in the opposite direction. Subsequently, the connecting mechanism 9 drives the drive motor 10, the internal and external cleaning mechanism 11, and the vacuum cleaner 12 to move together. As the threading disc 6 continues to move, when multiple dies 7 simultaneously cut the pipe end, the internal and external cleaning mechanism 11 is no longer located in the threading cavity of the threading disc 6. After the cutting is completed, the hand-operated mechanism 5 is operated again to move the slider 4 back to its initial position. During this process, the slider 4 drives some parts of the reciprocating pulling mechanism 8 to move, causing the reciprocating pulling mechanism 8 to pull the drive motor 10 and the internal and external cleaning mechanism 11 to slide on the guide rail 3 in the opposite direction. The cleaning mechanism 11 and the vacuum cleaner 12 move closer to the slider 4. At the same time, the drive motor 10 starts, causing the inner and outer cleaning mechanism 11 to start rotating. During the movement, the inner and outer cleaning mechanism 11 is inserted into the threading cavity of the threading disc 6. On the one hand, the moving and rotating inner and outer cleaning mechanism 11 cleans the debris generated by the threading operation of multiple dies 7, ensuring that the cutting edge of the dies 7 remains clean and sharp, and ensuring the thread processing accuracy. On the other hand, the inner and outer cleaning mechanism 11 will be placed on the outer circle surface of the fire pipe and clean the outer circle surface of the fire pipe to prevent debris from adhering and avoid wear on the outer circle surface due to friction of debris. During the cleaning process, the vacuum cleaner 12 is connected to the inner and outer cleaning mechanism 11 through the connecting mechanism 9, and promptly sucks away the cleaned debris and collects it in the dust bag inside the vacuum cleaner 12 to prevent the debris from scattering again and affecting the threading operation environment and quality.
[0034] In one embodiment, the reciprocating pulling mechanism 8 includes a connecting rod 801, with both ends of the connecting rod 801 fixedly mounted on the two sliders 4, and a first gear rack 802 fixedly mounted on one end of the connecting rod 801.
[0035] A rotating gear 803 meshes with the first gear rack 802. A support rod 804 is rotatably mounted on the central axis of the rotating gear 803. The support rod 804 is fixedly mounted on the support frame 1. A second gear rack 805 also meshes with the rotating gear 803.
[0036] The connecting mechanism 9 includes a movable frame 901, which is slidably mounted on the two guide rails 3, and one end of the second gear rack 805 is fixedly mounted on the movable frame 901.
[0037] A circular cover 902 is fixedly installed at one end of the mobile frame 901, the drive motor 10 is fixedly installed at the top of the mobile frame 901, the vacuum cleaner 12 is installed inside the mobile frame 901, and the vacuum cleaner 12 is connected to the circular cover 902.
[0038] After the cutting process is completed, the operator rotates the hand-operated mechanism 5, and the slider 4 connected to the hand-operated mechanism 5 slides along the two guide rails 3. Therefore, the movement of the slider 4 will drive the connecting rod 801 to move synchronously. During this process, the first gear rack 802, which is fixedly installed at one end of the connecting rod 801, also moves accordingly. Because the first gear rack 802 meshes with the rotating gear 803, and the support rod 804, which is fixed to the support frame 1, is rotatably installed on the central axis of the rotating gear 803, the movement of the first gear rack 802 will drive the rotating gear 803. The rotating gear 803 rotates around the support rod 804, and the rotating gear 803 meshes with the second gear rack 805, thereby driving the second gear rack 805 to move in the opposite direction to the first gear rack 802. One end of the second gear rack 805 is fixedly mounted on the movable frame 901, which is slidably mounted on two guide rails 3. As the second gear rack 805 moves, the movable frame 901 slides along the guide rails 3 in the opposite direction to the threading disc 6. Then, the movable frame 901 drives the round cover 902 to move, that is, to move closer to the threading disc 6.
[0039] In one embodiment, the internal and external cleaning mechanism 11 includes a connecting plate 1101, which is rotatably mounted on the circular cover 902 and fixedly mounted on the output shaft of the drive motor 10.
[0040] One end of the connecting plate 1101 is connected to a vent pipe 1102. The inner and outer walls of the vent pipe 1102 away from the connecting plate 1101 are respectively provided with multiple pipe outer wall cleaning bristles 1103 and multiple tooth cleaning bristles 1104.
[0041] The vent pipe 1102 has multiple chip inlet holes 1105, and the multiple chip inlet holes 1105 and multiple tooth cleaning bristles 1104 are arranged alternately.
[0042] The movable frame 901 moves the circular cover 902 towards the threading disc 6. As the circular cover 902 moves, the drive motor 10 starts operating. The output shaft of the drive motor 10 drives the connecting plate 1101 to rotate. Since the connecting plate 1101 is rotatably mounted on the circular cover 902, it can rotate stably around the axis. As the connecting plate 1101 rotates, the vent pipe 1102 connected to it also rotates, moving away from the connecting plate 1101. Multiple pipe outer wall cleaning brushes 1103 and multiple die cleaning brushes 1104 are respectively provided on the inner and outer walls of one side. As the pipe outer wall cleaning brushes 1103 rotate and move, they continuously contact the outer circular surface of the fire pipe, sweeping away the fine debris generated by threading and attached to the outer circular surface. At the same time, the die cleaning brushes 1104 also clean the dies 7 on the threading disc 6, removing the debris attached to the dies 7, ensuring the cleanliness and sharpness of the cutting edge of the dies 7, thereby ensuring the thread processing accuracy.
[0043] During the cleaning process, the vacuum cleaner 12 is started. Since the vacuum cleaner 12 is connected to the round cover 902 and the connecting plate 1101 is connected to the air pipe 1102, under the suction of the vacuum cleaner 12, the debris swept off the teeth 7 by the cleaning brush bristles 1104 will enter the air pipe 1102 through the debris inlet 1105 under the suction. The fine debris swept off the outer surface of the fire pipe by the cleaning brush bristles 1103 will also enter the air pipe 1102. The debris entering the air pipe 1102 is sucked into the vacuum cleaner 12, thus preventing the debris from falling again.
[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A semi-automatic high-efficiency fire-fighting pipeline threading machine, comprising a support frame (1), a chuck (2) provided on one side of the top of the support frame (1), guide rails (3) symmetrically provided on the top of the support frame (1), sliders (4) provided on the outer walls of the two guide rails (3), a manual rotation mechanism (5) provided on one of the two sliders (4), and a threading disc (6) provided above the space between the two sliders (4), the threading disc (6) being provided with a plurality of dies (7), characterized in that: Two said slider (4) between the reciprocating pull mechanism (8) is equipped with, the other end of the reciprocating pull mechanism (8) is equipped with connecting mechanism (9), the connecting mechanism (9) slidingly installed on two said guide rail (3), the connecting mechanism (9) is equipped with drive motor (10) on, the drive motor (10) is equipped with inside and outside cleaning mechanism (11) on, the inside and outside cleaning mechanism (11) is communicated with dust collector (12) through the connecting mechanism (9), the dust collector (12) is installed in the connecting mechanism (9).
2. A semi-automatic high efficiency threading machine for fire hose according to claim 1, characterized in that, The reciprocating pull mechanism (8) includes a connecting rod (801), both ends of the connecting rod (801) are fixedly installed on two sliders (4), and one end of the connecting rod (801) is fixedly installed with a first gear bar (802).
3. A semi-automatic high efficiency threading machine for fire hose according to claim 2, characterized in that, The first gear bar (802) is meshed with a rotating gear (803), a support rod (804) is rotatably installed on the central axis of the rotating gear (803), the support rod (804) is fixedly installed on the support frame (1), and the rotating gear (803) is further meshed with a second gear bar (805).
4. A semi-automatic high efficiency threading machine for fire hose according to claim 3, characterized in that, The connecting mechanism (9) includes a moving frame (901), the moving frame (901) is slidingly installed on two guide rails (3), and one end of the second gear bar (805) is fixedly installed on the moving frame (901).
5. A semi-automatic high efficiency threading machine for fire hose according to claim 4, characterized in that, One end of the moving frame (901) is fixedly installed with a circular cover (902), the drive motor (10) is fixedly installed on the top end of the moving frame (901), the dust collector (12) is installed in the moving frame (901), and the dust collector (12) is communicated with the circular cover (902).
6. A semi-automatic high efficiency threading machine for fire hose according to claim 5, characterized in that, The inside and outside cleaning mechanism (11) includes a connecting disc (1101), the connecting disc (1101) is rotatably installed on the circular cover (902), and the connecting disc (1101) is fixedly installed on the output shaft of the drive motor (10).
7. A semi-automatic high efficiency threading machine for fire hose according to claim 6, characterized in that, One end of the connecting disc (1101) is communicated with an air pipe (1102), a plurality of pipeline outer wall cleaning bristles (1103) and a plurality of die cleaning bristles (1104) are arranged on the inner wall and the outer wall of the side of the air pipe (1102) away from the connecting disc (1101), respectively.
8. A semi-automatic high efficiency threading machine for fire hose according to claim 7, characterized in that, A plurality of chip holes (1105) are formed in the air pipe (1102), and the plurality of chip holes (1105) and the plurality of die cleaning bristles (1104) are alternately arranged.