A heating and ventilation pipe fitting processing device for engineering
By designing automated HVAC pipe fitting processing equipment, the automatic continuous conveying and diameter expansion processing of spheres is achieved using conveying and pressing units, solving the problems of high labor intensity and safety risks caused by manual handling and improving the degree of automation in processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-23
- Publication Date
- 2026-03-31
AI Technical Summary
The current process of manually handling metal spheres in HVAC pipe fittings processing is labor-intensive and poses significant safety risks. It also has a low degree of automation and is difficult to integrate into modern production lines.
Design an engineering HVAC pipe fitting processing equipment, including a ring-shaped conveying unit and a pressing unit. The conveying unit realizes automatic and continuous conveying of spheres through the vertical channel, and the pressing unit provides downward pressure to the spheres, so that they enter the bend one by one for diameter expansion processing.
It enables automated and continuous feeding of the sphere, reduces the physical exertion of workers, improves safety, simplifies the pipe bending process, and increases the degree of automation.
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Figure CN121551490B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of pipe fitting processing, and in particular to a processing equipment for HVAC pipe fittings for engineering applications. Background Technology
[0002] In HVAC systems and various industrial piping projects, bends with specific curvatures are key connectors for forming complex pipe networks. To meet fluid dynamics requirements or match subsequent installations, bends often require precise cold expansion. Currently, the industry widely adopts a process based on progressive spherical extrusion: the operator first places a sphere of a specified diameter into the end of the bend, then places a second sphere behind it, and then uses a hydraulic device to push the second sphere to apply pressure to the first sphere, thereby forcing the first sphere to travel within the bend and finally exit from the other end, thus completing the expansion of the pipe diameter and the shaping of the inner wall.
[0003] However, this traditional method has significant technical and production bottlenecks. First, the operation relies on manual handling and placement of heavy metal spheres one by one, which is extremely labor-intensive and poses safety risks. Second, the overall level of automation is very low, making it difficult to integrate into modern automated production lines. Summary of the Invention
[0004] This invention provides a processing equipment for HVAC pipe fittings for engineering applications, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0006] A processing equipment for HVAC pipe fittings for engineering applications includes a plurality of conveying units arranged in a ring on a horizontal plane and a pressing unit located between the plurality of conveying units.
[0007] The conveying unit includes a vertically arranged conveyor belt and two drive rollers located on the upper and lower sides of the conveyor belt for transmitting power to the conveyor belt;
[0008] The pressing unit includes a hydraulic cylinder and a pressure plate assembly installed on the movable end of the hydraulic cylinder;
[0009] The conveyor belts form a vertical channel through which the spheres of the expanded bend pass, and the pressing unit is used to provide downward pressure to the spheres arranged in the vertical channel.
[0010] In some embodiments of the present invention, the number of the hydraulic cylinders is set to at least two, and the pressure plate assembly includes a fixed plate installed on the output end of each hydraulic cylinder. An adjusting cylinder and a pressure rod are provided on the fixed plate. The pressure rod passes through the fixed plate and is horizontally slidable. The movable end of the adjusting cylinder is rotatably connected to the pressure rod through an inclined auxiliary arm.
[0011] Several of the aforementioned pressure bars can be connected to provide downward pressure to the ball.
[0012] In some embodiments of the present invention, one end of one of the two adjacent pressure rods is provided with a slot, and the inner wall of the slot is provided with a plurality of vertical anti-loosening grooves. The end of the other pressure rod is provided with a locking plate that cooperates with the slot, and the outer wall of the locking plate is provided with a plurality of ribs that cooperate with the anti-loosening grooves.
[0013] In some embodiments of the present invention, the horizontal cross-sectional shape of the outer wall of the conveyor belt is arc-shaped;
[0014] The conveying unit also includes a plurality of loops arranged around the conveyor belt track. The loops are fixedly connected to the conveyor belt through a connecting plate, and the loops on the plurality of conveying units are staggered in the vertical direction.
[0015] In some embodiments of the present invention, both the upper and lower end faces of the collar are spherical.
[0016] In some embodiments of the present invention, the conveying unit further includes a damping unit for providing damping effect on the rotation of the conveyor belt;
[0017] The damping unit includes a support plate and two rings mounted on the support plate. The two rings correspond to the two transmission rollers respectively. Each ring has an annular cavity inside. A straight tube is connected to the ring and runs tangentially along the outer wall of the ring. A transmission wheel is provided at the end of the straight tube and is connected to the corresponding transmission roller. A transmission shaft is provided inside the straight tube and is connected to the transmission wheel. The transmission shaft is provided with several blades for driving the flow of liquid stored in the annular cavity.
[0018] The frictional force of the liquid flowing within the annular cavity provides damping force for the movement of the conveyor belt.
[0019] In some embodiments of the present invention, a partition is provided in the annular cavity, and a flow-limiting hole is formed on the partition.
[0020] In some embodiments of the present invention, a partition is rotatably disposed within the annular cavity, the partition having an adjustment hole, and the adjustment hole at least partially overlaps with the flow-limiting hole.
[0021] In some embodiments of the present invention, the outer wall of the partition extends to the outside of the ring body, and a plurality of slots are provided on the outer wall of the partition;
[0022] A connecting rod is provided on the ring body, and a sliding sleeve is slidably provided on the connecting rod. The sliding sleeve and the connecting rod are connected by an elastic body, and a locking block is provided on the sliding sleeve to cooperate with the locking slot on the partition plate.
[0023] In some embodiments of the invention, the processing equipment further includes a guide frame for guiding the sphere.
[0024] The beneficial effects of this invention are as follows:
[0025] By using a vertical channel composed of several conveying units to transport multiple sequentially arranged spheres, the automatic and continuous feeding function of the spheres can be realized, avoiding the physical exertion of workers during handling and improving safety. At the same time, by using the pressing unit to squeeze the spheres, the spheres are made to enter the bend one by one, thereby realizing the expansion of the inner diameter of the bend, simplifying the bend processing method and improving the degree of automation. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the structure of the present invention;
[0028] Figure 2 yes Figure 1 A schematic diagram of the exploded structure;
[0029] Figure 3 This is a schematic diagram of the conveying unit structure in an embodiment of the present invention;
[0030] Figure 4 This is a schematic diagram of the pressing unit structure in an embodiment of the present invention;
[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the collar in an embodiment of the present invention;
[0032] Figure 6 This is a schematic diagram of the damping unit in an embodiment of the present invention;
[0033] Figure 7 This is a schematic diagram of the ring structure in an embodiment of the present invention;
[0034] Figure 8 yes Figure 7 Schematic diagram of cross-section structure.
[0035] Figure label:
[0036] 100. Pipe bend;
[0037] 200. Conveying unit; 201. Conveyor belt; 202. Drive roller; 203. Collar; 204. Connecting plate;
[0038] 300. Pressing unit; 301. Hydraulic cylinder; 302. Pressure plate assembly; 303. Fixing plate; 304. Adjusting cylinder; 305. Pressure rod; 306. Auxiliary arm; 307. Clamping plate;
[0039] 400. Damping unit; 401. Support plate; 402. Ring body; 403. Straight pipe; 404. Transmission wheel; 405. Transmission shaft; 406. Fan blade; 407. Partition plate; 408. Flow limiting orifice; 409. Partition plate; 410. Adjustment hole; 411. Slot; 412. Connecting rod; 413. Sliding sleeve; 414. Locking block; 415. Elastic body;
[0040] 500. Guide frame. Detailed Implementation
[0041] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
[0042] like Figures 1 to 4 As shown, an engineering HVAC pipe fitting processing equipment of the present invention includes a plurality of conveying units 200 arranged in a ring on a horizontal plane and a pressing unit 300 located between the plurality of conveying units 200.
[0043] The conveying unit 200 includes a vertically arranged conveyor belt 201 and two drive rollers 202 located on the upper and lower sides of the conveyor belt 201 for transmitting power to the conveyor belt 201;
[0044] The pressing unit 300 includes a hydraulic cylinder 301 and a pressure plate assembly 302 installed on the movable end of the hydraulic cylinder 301;
[0045] Among them, several conveyor belts 201 form a vertical channel for the balls of the expanded bend 100 to pass through, and the pressing unit 300 is used to provide downward pressure for several balls arranged in the vertical channel.
[0046] Specifically, the two drive rollers 202 in the conveying unit 200 can be used to support and drive the conveyor belt 201, keeping the conveyor belt 201 in a vertical state. The side walls of the conveyor belt 201 between several conveying units 200 can form a vertical channel. When the conveyor belt 201 moves, the inner wall of the vertical channel moves in the vertical direction, thereby realizing the vertical conveying function of the spheres between them. This structure can realize a continuous conveying mode.
[0047] In use, the bend 100 is fixed below several conveying units 200. Several balls are arranged sequentially within the vertical channel formed by the conveying units 200. When the conveyor belts 201 are running, they can convey the balls downwards within the vertical channel. Alternatively, when the hydraulic cylinder 301 extends and applies downward pressure to the balls within the vertical channel using the pressure plate assembly 302, the friction between the balls and the conveyor belts 201 drives the conveyor belts 201 to run, thereby causing the sequentially arranged balls within the vertical channel to move downwards synchronously. The first ball moves downwards to the bend 100. At the top port position, since the diameter of the bend 100 is small at this time, the bend 100 blocks the first ball. The pressing unit 300 pushes the second ball to contact the first ball and squeezes the first ball into the bend 100, thereby expanding the inner diameter of the bend 100. As several balls are continuously squeezed into the bend 100, the first ball moves continuously inside the bend 100 and expands the inner wall of the bend 100. When the first ball moves to the other end of the bend 100 and is discharged, the processing of the bend 100 is completed, thus realizing the automatic processing mode of the bend 100.
[0048] In practical use, only two spheres are generally needed to complete the expansion and reinforcement of the bend 100. When the spheres are discharged from the end of the bend 100, they can be transferred to the top of the vertical channel by a robotic arm or other lifting structure and put back into the vertical channel, thereby realizing the continuous operation of the equipment.
[0049] By using a vertical channel composed of several conveying units 200 to convey multiple sequentially arranged spheres, the automatic and continuous feeding function of the spheres can be realized, avoiding the physical exertion of workers during handling and improving safety. At the same time, by using the pressing unit 300 to squeeze the spheres, the spheres are made to enter the bend 100 one by one, thereby realizing the expansion of the inner diameter of the bend 100, simplifying the processing method of the bend 100 and improving the degree of automation.
[0050] In some embodiments of the present invention, such as Figure 4 As shown, the number of hydraulic cylinders 301 is set to at least two. The pressure plate assembly 302 includes a fixed plate 303 installed on the output end of each hydraulic cylinder 301. An adjusting cylinder 304 and a pressure rod 305 are provided on the fixed plate 303. The pressure rod 305 passes through the fixed plate 303 and slides horizontally. The movable end of the adjusting cylinder 304 and the pressure rod 305 are rotatably connected by an inclined auxiliary arm 306.
[0051] Several pressure bars 305 can be connected to provide downforce to the ball.
[0052] Each hydraulic cylinder 301 can provide a pushing force to the corresponding pressure plate assembly 302 and its upper structure, thereby enabling the pressure rod 305 to move vertically. Since several spheres are arranged sequentially within the vertical channel, when the pressure plate assembly 302 applies downward pressure to a sphere, the adjacent spheres on the upper side of that sphere will hinder the upward movement of the pressure plate assembly 302; that is, the pressure plate assembly 302 can only move in one direction. To enable the pressure plate assembly 302 to apply downward pressure to different spheres, the above-mentioned structural configuration can be adopted. When several pressure rods 305 are connected to each other, several… The pressure rods 305 work together to provide downward pressure to the ball below. When the hydraulic cylinder 301 needs to retract, the adjusting cylinder 304 pushes the pressure rods 305 to slide on the fixed plate 303 via the auxiliary arm 306. Several pressure rods 305 separate from each other and move to the outside of the projection of the ball on the horizontal plane. Then the hydraulic cylinder 301 retracts and changes the height position of the pressure rods 305. When the pressure rods 305 move to the designated position, the adjusting cylinder 304 pushes the pressure rods 305 to move again. Several pressure rods 305 reconnect and provide downward pressure to the corresponding ball.
[0053] It should be noted that, since adjacent spheres can contact each other within the vertical channel, the contact position between the pressure rod 305 and the sphere needs to be offset from the vertical axis of the sphere, such as... Figure 4 As shown, the shape of the pressure bar 305 can be U-shaped, and its middle position can be used to provide space for the contact of two adjacent spheres.
[0054] In some embodiments of the present invention, such as Figure 4 As shown, one of the two adjacent pressure rods 305 has a slot at its end, and the inner wall of the slot has several vertical anti-loosening grooves. The other pressure rod 305 has a plate 307 that works with the slot at its end, and the outer wall of the plate 307 has several ribs that work with the anti-loosening grooves.
[0055] Because the anti-loosening groove is vertical, when two adjacent pressure rods 305 are connected, one pressure rod 305 is located on the lower side and the other pressure rod 305 is located on the upper side. This mode can be controlled by the extension and retraction length of the corresponding two hydraulic cylinders 301. At this time, the clamping plate 307 is located above the corresponding clamping groove. When the clamping plate 307 moves down into the clamping groove, the ribs on the clamping plate 307 will be engaged in the corresponding anti-loosening groove, thereby realizing the connection of two adjacent pressure rods 305. This connection method can effectively prevent the separation of two adjacent pressure rods 305 on the horizontal plane, improve the connection firmness of several pressure rods 305, and facilitate several pressure rods 305 to provide more effective downward pressure to the ball.
[0056] In some embodiments of the present invention, such as Figure 3 As shown, the horizontal cross-sectional shape of the outer wall of the conveyor belt 201 is arc-shaped;
[0057] The conveying unit 200 also includes a number of loops 203 arranged around the track of the conveyor belt 201. The loops 203 are fixedly connected to the conveyor belt 201 through the connecting plate 204. The loops 203 on the several conveying units 200 are arranged alternately in the vertical direction.
[0058] By utilizing the arc-shaped characteristics of the outer wall of the conveyor belt 201, it can better contact the sphere, increase the contact area and friction, and ensure that the conveyor belt 201 moves synchronously with the sphere. The upper and lower sides of the collar 203 can contact the outer walls of the two adjacent spheres respectively, thereby stabilizing the force between the two adjacent spheres. In addition, the collar 203 can play an auxiliary supporting role for the sphere, preventing the sphere from moving randomly on the horizontal plane.
[0059] In use, by utilizing the connection effect of the collar 203 between several spheres, the pressing unit 300 only needs to provide force to one sphere to enable that sphere to transmit the force downward to each sphere, and the force between the spheres is stable, avoiding the unstable force transmission between adjacent spheres when they can only make point contact.
[0060] The staggered arrangement of the collars 203 on several conveying units 200 can allow the collars 203 on the upper and lower sides of the sphere to be located on different conveying units 200, thereby enabling several conveyor belts 201 to move synchronously.
[0061] In some embodiments of the present invention, such as Figure 5 As shown, both the upper and lower end faces of the collar 203 are spherical. By utilizing the special design of the end faces of the collar 203, a surface contact mode can be formed between the collar 203 and the sphere, thereby improving the support stability of the collar 203 on the sphere, enhancing the force transmission effect between adjacent spheres, increasing the contact area between the collar 203 and the sphere, and preventing the collar 203 from forming indentations on the sphere. The connecting plate 204 can install the collar 203 on the conveyor belt 201 to facilitate the synchronous movement of the collar 203 with the conveyor belt 201.
[0062] In some embodiments of the present invention, such as Figures 6 to 8 As shown, the conveying unit 200 also includes a damping unit 400 for providing damping for the rotation of the conveyor belt 201.
[0063] The damping unit 400 includes a support plate 401 and two ring bodies 402 mounted on the support plate 401. The two ring bodies 402 correspond to two transmission rollers 202 respectively. The ring body 402 has an annular cavity inside. A straight tube 403 is connected to the ring body 402 in the tangential direction along the outer wall of the ring body 402. The end of the straight tube 403 is provided with a transmission wheel 404 that is connected to the corresponding transmission roller 202. A transmission shaft 405 connected to the transmission wheel 404 is provided inside the straight tube 403. A plurality of fan blades 406 are provided on the transmission shaft 405 for driving the flow of liquid stored in the annular cavity.
[0064] The frictional force of the liquid flowing in the annular chamber provides damping force for the movement of the conveyor belt 201.
[0065] The annular cavity inside the ring body 402 can store a highly viscous fluid. Several fan blades 406 on the drive shaft 405 are located in the annular cavity. When the drive roller 202 rotates, it drives the fan blades 406 to rotate through the drive wheel 404 and the drive shaft 405. The fan blades 406 can push the fluid in the annular cavity to flow, so that the fluid circulates along the trajectory of the annular cavity. However, the viscosity of the fluid makes its flow difficult, and the friction between the fluids will hinder the rotation of the drive wheel 404. This provides rotational damping for the conveyor belt 201, so that in the natural state, the conveyor belt 201 is stationary, and the balls between the several conveyor belts 201 are stationary. Only when the pressing unit 300 pushes the balls to move can the conveyor belt 201 move. At this time, the several conveying units 200 realize the driven conveying function of the balls.
[0066] In some embodiments of the present invention, to limit the fluid velocity within the annular cavity and improve its damping effect, the following methods can be used: Figure 8 As shown, a baffle 407 is provided in the annular cavity, and a flow-limiting hole 408 is provided on the baffle 407. When the fluid passes through the flow-limiting hole 408 and flows, the flow-limiting hole 408 limits the fluid flow rate, and the setting of the flow-limiting hole 408 will enhance the force required to drive the fluid flow, thereby providing better damping force for the sphere and preventing the sphere from driving the conveyor belt 201 due to its own weight.
[0067] In some embodiments of the present invention, a partition 409 is rotatably disposed in the annular cavity, and an adjustment hole 410 is provided on the partition 409, and the adjustment hole 410 overlaps at least partially with the flow limiting hole 408.
[0068] like Figure 8As shown, the fluid in the annular chamber can circulate through the flow-limiting hole 408 and the regulating hole 410. When the diaphragm 409 rotates, the overlapping area between the flow-limiting hole 408 and the regulating hole 410 changes, which facilitates the control of the fluid flow rate and the control and buffering of the conveyor belt 201 running speed. At the same time, based on the fluid viscosity characteristics, when the overlapping area between the flow-limiting hole 408 and the regulating hole 410 changes, the viscosity of the overlapping area of the flow-limiting hole 408 and the regulating hole 410 on the fluid changes, thereby adjusting the amount of power required to drive the fluid flow and facilitating the adjustment of the damping effect.
[0069] In some embodiments of the present invention, the outer wall of the partition 409 extends to the outer side of the ring 402, and a plurality of slots 411 are provided on the outer wall of the partition 409.
[0070] A connecting rod 412 is provided on the ring body 402, and a sliding sleeve 413 is slidably provided on the connecting rod 412. The sliding sleeve 413 and the connecting rod 412 are connected by an elastic body 415. A locking block 414 is provided on the sliding sleeve 413 to cooperate with the locking slot 411 on the partition plate 409.
[0071] like Figures 7 to 8 As shown, the lower side of the ring 402 can be cut off, and the partition 409 can be rotatably installed in the cut-off gap, and the partition 409 can be engaged with the partition plate 407. The connecting rod 412 can connect the partial ring 402 on both sides of the cut-off position. The elastic body 415 provides elastic thrust to the sliding sleeve 413, which can make the locking block 414 engage with the locking slot 411 on the partition 409, thereby locking the position of the partition 409. When it is necessary to rotate the partition 409, the partition 409 can be unlocked by simply pushing the locking block 414 to separate from the partition 409.
[0072] In some embodiments of the present invention, such as Figure 2 As shown, the processing equipment also includes a guide frame 500 for guiding the sphere.
[0073] When the collar 203 moves to the underside of the conveyor belt 201 and deviates outward from the vertical channel, the collar 203 separates from the ball simultaneously. The ball will fall naturally to the top opening of the bend 100. This ball can be placed without the guidance of the guide frame 500. Similarly, when the collar 203 on its lower side deviates, the second ball will also fall naturally and contact the first ball. There is no other structure between the two balls. Since the second ball falls naturally, without the guidance of the guide frame 500, the second ball would slide freely after contacting the first ball, causing the two balls to fail to maintain contact. By using the guide frame 500 to guide the balls, the positions of the two balls can be relatively fixed until the collar 203 on the upper side of the second ball moves down and re-contacts the second ball. At this time, the collar 203 can provide downward squeezing force for the second ball and the first ball, thereby ensuring the normal operation of the structure.
[0074] The guide frame 500 can be adopted as follows Figure 2 The several arc-shaped guide plates shown can also be constructed using other structural methods, as long as they can guide the sphere.
[0075] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A processing equipment for HVAC pipe fittings for engineering applications, characterized in that, It includes a plurality of conveying units arranged in a ring on a horizontal plane and a pressing unit located between the plurality of conveying units; The conveying unit includes a vertically arranged conveyor belt and two drive rollers located on the upper and lower sides of the conveyor belt for transmitting power to the conveyor belt; The pressing unit includes a hydraulic cylinder and a pressure plate assembly installed on the movable end of the hydraulic cylinder; The conveyor belts form a vertical channel through which the spheres of the expanded bend pass, and the pressing unit is used to provide downward pressure to the spheres arranged in the vertical channel. The number of hydraulic cylinders is set to at least two. The pressure plate assembly includes a fixed plate installed on the output end of each hydraulic cylinder. An adjusting cylinder and a pressure rod are provided on the fixed plate. The pressure rod passes through the fixed plate and slides horizontally. The movable end of the adjusting cylinder is rotatably connected to the pressure rod through an inclined auxiliary arm. Several of the aforementioned pressure bars can be connected to provide downward pressure to the ball; The conveying unit also includes a damping unit for providing damping for the rotation of the conveyor belt; The damping unit includes a support plate and two rings mounted on the support plate. The two rings correspond to the two transmission rollers respectively. Each ring has an annular cavity inside. A straight tube is connected to the ring and runs tangentially along the outer wall of the ring. A transmission wheel is provided at the end of the straight tube and is connected to the corresponding transmission roller. A transmission shaft is provided inside the straight tube and is connected to the transmission wheel. The transmission shaft is provided with several blades for driving the flow of liquid stored in the annular cavity. The frictional force of the liquid flowing within the annular cavity provides damping force for the movement of the conveyor belt.
2. An engineering heating and plumbing fitting machining apparatus according to claim 1, wherein, One of the two adjacent pressure rods has a slot at its end, and the inner wall of the slot has several vertical anti-loosening grooves. The other pressure rod has a plate at its end that works with the slot, and the outer wall of the plate has several ribs that work with the anti-loosening grooves.
3. The heating and ventilation pipe processing equipment for engineering according to claim 1, characterized in that, The horizontal cross-sectional shape of the outer wall of the conveyor belt is arc-shaped; The conveying unit also includes a plurality of loops arranged around the conveyor belt track. The loops are fixedly connected to the conveyor belt through a connecting plate, and the loops on the plurality of conveying units are staggered in the vertical direction.
4. An engineering heating and plumbing fitting machining apparatus according to claim 3, wherein, Both the upper and lower end faces of the collar are spherical.
5. The heating and ventilation pipe processing device for engineering according to claim 1, characterized in that, The annular cavity is equipped with a partition, and the partition has flow-limiting holes.
6. An engineering heating and plumbing fitting machining apparatus according to claim 5, wherein, A partition is rotatably disposed within the annular cavity, and an adjustment hole is provided on the partition, wherein the adjustment hole overlaps at least partially with the flow-limiting hole.
7. An engineering heating and plumbing fitting machining apparatus according to claim 6, wherein, The outer wall of the partition extends to the outside of the ring, and several slots are provided on the outer wall of the partition; A connecting rod is provided on the ring body, and a sliding sleeve is slidably provided on the connecting rod. The sliding sleeve and the connecting rod are connected by an elastic body, and a locking block is provided on the sliding sleeve to cooperate with the locking slot on the partition plate.
8. The heating and air conditioning tubing apparatus for an engineer of claim 1, wherein, The processing equipment also includes a guide frame for guiding the sphere.
Citation Information
Patent Citations
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CN218538088U