A new pipe cutting machine
By incorporating a steel ball with a retaining ring and a clamping slider structure into the pipe cutting machine, the problems of unstable clamping and steel ball falling off are solved, resulting in a more stable cutting effect and a longer service life.
Patent Information
- Application Number
- CN202522491024.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-24
AI Technical Summary
In existing pipe cutting machines, the clamping method can easily cause the pipe to detach, affecting the flatness of the cut, and the steel balls are prone to falling off during the cutting process, reducing service life and work efficiency.
A steel ball with a retaining ring is installed on the rotating part. The steel ball is held in place by the elasticity of the retaining ring to prevent it from falling out. The pipe is stably clamped by the clamping slider and screw structure.
It improves the flatness of pipe cutting and the structural stability of the cutting machine, extends its service life, and reduces operating costs.
Smart Images

Figure CN224674375U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pipe cutting machines, and specifically refers to a new type of pipe cutting machine. Background Technology
[0002] Chinese patent discloses an open-type pipe cutter with an adjustable clamping device, publication number CN222790718U. A search reveals this to be the closest prior art example. The existing technology has the following problems: both the left and right fixing members have at least one opening, with a fixing shaft inside each opening. A bearing is fitted onto the fixing shaft, and the bearing is slidably disposed within a sliding groove. One end of each of the left and right fixing members has a left protrusion and a right protrusion, respectively, with a screw assembly passing through each protrusion. In this technical solution, the rotation between the fixing and rotating parts is driven by the bearing for clamping. This clamping method easily causes the pipe on the clamping side to detach from the clamping block, affecting the flatness of the pipe cut.
[0003] Furthermore, existing patented technologies have shown that steel balls are placed inside the annular extension to cause rotation between the fixed and rotating parts. However, in this method, the steel balls inside are prone to fall off during the rotation of the cutting pipe, which can damage the cutting machine, affect the user's work efficiency, and increase the cost of use. Utility Model Content
[0004] The purpose of this invention is to provide a new type of pipe cutting machine that is structurally stable, easy to cut, and has a long service life.
[0005] The purpose of this utility model is achieved as follows: A novel pipe cutting machine includes a pipe cutting machine body, a cutting device slidably disposed on one side of the pipe cutting machine body, and a clamping assembly slidably disposed on the pipe cutting machine body. The pipe cutting machine body includes a fixing component and a rotating component rotatably disposed on the fixing component. An elliptical channel is formed inside the fixing component. An annular extension is formed along the circumference of the rotating component. The annular extension is rotatably disposed in the elliptical channel. A plurality of through holes are formed on the annular extension. Steel balls are disposed in the through holes, and clamping rings are fitted on the steel balls.
[0006] Preferably, the upper and lower ends of the retaining ring are each formed with a plurality of claws that fit onto the steel ball.
[0007] Preferably, the retaining ring has an opening on one side.
[0008] Preferably, the fixing member includes a left fixing member and a right fixing member rotatably disposed on one side of the left fixing member, and the rotating member includes a left rotating member and a right rotating member rotatably disposed on one side of the left rotating member. The left rotating member is adapted to the left fixing member, and the right rotating member is adapted to the right fixing member.
[0009] Preferably, a limiting annular groove is formed on the outer side of the elliptical channel, and the annular extension abuts against the limiting annular groove.
[0010] Preferably, the clamping assembly includes several sliding grooves opened at the upper end of the rotating part, a clamping slider for locking the pipe is slidably provided in the sliding groove, a lead screw is passed through the clamping slider, the middle part of the lead screw is passed through a fixed block formed on the rotating part, and a threaded knob is sleeved on the outside of the lead screw.
[0011] Preferably, the upper end of the clamping slider is provided with a sliding groove, and a fixing screw is provided in the sliding groove. The fixing screw is screwed into a screw hole on the fixing block, and a threaded knob is provided at the upper end of the fixing screw.
[0012] Preferably, the clamping slider is provided in four sets.
[0013] Preferably, the clamping slider has two sets of mounting grooves at one end near the pipe, and anti-slip strips are installed in both mounting grooves.
[0014] The outstanding and beneficial technical effects of this utility model compared with the prior art are as follows: the novel pipe cutting machine of this utility model has a through hole on the rotating part with a steel ball with a retaining ring. Because the retaining ring has a certain elasticity, the steel ball is stuck in the annular extension part, which can effectively prevent the steel ball from falling off when cutting the pipe, thereby increasing the service life of the product and the flatness of the pipe cut. Attached Figure Description
[0015] Figure 1 This is a simplified structural diagram of the present invention; Figure 2 This is an exploded view of this utility model; Figure 3 This is a schematic diagram showing the connection between the steel ball and the retaining ring of this utility model. Detailed Implementation
[0016] The present invention will be further described below with reference to specific embodiments.
[0017] like Figure 1-3 As shown, a novel pipe cutting machine includes a pipe cutting machine body 1, a cutting device 2 slidably disposed on one side of the pipe cutting machine body 1, and a clamping assembly 3 slidably disposed on the pipe cutting machine body 1. The pipe cutting machine body 1 includes a fixing part 4 and a rotating part 5 rotatably disposed on the fixing part 4. An elliptical channel 6 is provided in the fixing part 4. The rotating part 5 has an annular extension 7 formed along its circumference. The annular extension 7 is rotatably disposed in the elliptical channel 6. A plurality of through holes 8 are provided on the annular extension 7. Steel balls 9 are provided in the through holes 8. A clamping ring 10 is sleeved on the steel balls 9.
[0018] The novel pipe cutting machine of this technical solution has a through hole 8 on the rotating part 5 with a steel ball 9 having a retaining ring 10. Because the retaining ring 10 has a certain elasticity, the steel ball 9 is effectively prevented from falling out during pipe cutting by being held in place by the annular extension part 7, thus increasing the product's service life and the flatness of the pipe cut. The above-mentioned cutting device has been disclosed in the prior art and will not be described in detail here.
[0019] Preferably, the upper and lower ends of the retaining ring 10 are each formed with a plurality of gripping claws 11 that fit onto the steel balls 9. The gripping claws 11 can better fix the steel balls 9, prevent the steel balls 9 from falling off when the rotating part 5 rotates, and ensure the overall structural stability of the pipe cutting machine.
[0020] Preferably, the retaining ring 10 has an opening 12 on one side. The opening 12 facilitates the installation of the retaining ring 10 and increases the ease of assembly.
[0021] Preferably, the fixing member 4 includes a left fixing member 13 and a right fixing member 14 rotatably disposed on one side of the left fixing member 13, and the rotating member 5 includes a left rotating member 15 and a right rotating member 16 rotatably disposed on one side of the left rotating member 15. The left rotating member 15 is adapted to the left fixing member 13, and the right rotating member 16 is adapted to the right fixing member 14.
[0022] Preferably, a limiting annular groove 17 is formed on the outer side of the elliptical channel 6, and the annular extension 7 abuts against the limiting annular groove 17. This effectively limits the vertical movement of the annular extension 7, preventing the rotating part 5 from swinging up and down during rotation, which would result in uneven pipe cutting.
[0023] Preferably, the clamping assembly 3 includes several sliding grooves 18 on the upper end of the rotating component 5. Clamping sliders 19 for locking the pipe are slidably disposed within the sliding grooves 18. A lead screw 20 passes through the clamping slider 19, and the middle of the lead screw 20 passes through a fixed block 21 formed on the rotating component 5. A threaded knob 22 is sleeved on the outer side of the lead screw 20. The lead screw 20 allows for fine adjustments to the clamping sliders 19. For example, if a customer needs to cut a pipe with a diameter of 10cm, the user first adjusts the clamping sliders 19 to be slightly larger than the pipe size, then places the pipe into the pipe cutting machine, locks the fixed component 4 and the rotating component 5 respectively, and rotates the threaded knob 22 to drive the lead screw 20 to rotate, thereby moving the clamping sliders 19. This causes the four sets of clamping sliders 19 to tightly lock the pipe. Then, the user starts the cutting device 2 to penetrate the pipe wall and cut the pipe in one circumference.
[0024] Preferably, the upper end of the clamping slider 19 is provided with a sliding groove 23, and a fixing screw 24 is provided in the sliding groove 23. The fixing screw 24 is screwed into a screw hole 25 on the fixing block 21, and a threaded knob 26 is provided at the upper end of the fixing screw 24. The fixing screw 24 and the screw hole 25 can be used to position the clamping slider 19, preventing the lead screw 20 from slipping when it is in contact with the pipe, which would result in an unsatisfactory pipe cutting effect.
[0025] Preferably, the clamping slider 19 is provided in four sets. Providing four sets of clamping sliders 19 can ensure the locking of the pipe and prevent the pipe from shifting position during cutting.
[0026] Preferably, the clamping slider 19 has two sets of mounting grooves 27 at one end near the pipe, and anti-slip strips 28 are installed in both mounting grooves 27. The anti-slip grooves 28 can ensure the locking of the pipe and prevent the pipe from shifting its position during cutting.
[0027] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A novel pipe cutting machine, characterized in that, The device includes a pipe cutter body (1), a cutting device (2) slidably disposed on one side of the pipe cutter body (1), and a clamping assembly (3) slidably disposed on the pipe cutter body (1). The pipe cutter body (1) includes a fixing part (4) and a rotating part (5) rotatably disposed on the fixing part (4). An elliptical channel (6) is provided in the fixing part (4). The rotating part (5) has an annular extension (7) formed along the circumference. The annular extension (7) is rotatably disposed in the elliptical channel (6). Several through holes (8) are provided on the annular extension (7). Steel balls (9) are provided in the through holes (8). A retaining ring (10) is fitted on the steel balls (9).
2. The novel pipe cutting machine according to claim 1, characterized in that, The upper and lower ends of the retaining ring (10) are each formed with several claws (11) that fit onto the steel ball (9).
3. The novel pipe cutting machine according to claim 1, characterized in that, The clasp (10) has an opening (12) on one side.
4. The novel pipe cutting machine according to claim 1, characterized in that, The fixing member (4) includes a left fixing member (13) and a right fixing member (14) rotatably disposed on one side of the left fixing member (13). The rotating member (5) includes a left rotating member (15) and a right rotating member (16) rotatably disposed on one side of the left rotating member (15). The left rotating member (15) is adapted to the left fixing member (13), and the right rotating member (16) is adapted to the right fixing member (14).
5. The novel pipe cutting machine according to claim 1, characterized in that, A limiting annular groove (17) is provided on the outer side of the elliptical channel (6), and the annular extension (7) abuts against the limiting annular groove (17).
6. The novel pipe cutting machine according to claim 1 or 4, characterized in that, The clamping assembly (3) includes several sliding grooves (18) opened at the upper end of the rotating part (5). A clamping slider (19) for locking the pipe is slidably provided in the sliding groove (18). A screw rod (20) is passed through the clamping slider (19). The middle part of the screw rod (20) is passed through a fixed block (21) formed on the rotating part (5). A threaded knob (22) is sleeved on the outside of the screw rod (20).
7. The novel pipe cutting machine according to claim 6, characterized in that, The upper end of the clamping slider (19) is provided with a sliding groove (23), and a fixing screw (24) is provided in the sliding groove (23). The fixing screw (24) is screwed into the screw hole (25) on the fixing block (21). The upper end of the fixing screw (24) is provided with a threaded knob (26).
8. The novel pipe cutting machine according to claim 7, characterized in that, The clamping slider (19) is provided in four sets.
9. The novel pipe cutting machine according to claim 8, characterized in that, The clamping slider (19) has two sets of mounting grooves (27) at one end near the pipe, and anti-slip strips (28) are installed in both mounting grooves (27).
Citation Information
Patent Citations
Open type pipe cutter with adjustable holding device
CN222790718U