Screw extractor of feeding scale

Abstract

A feeding scale screw extractor comprises a fixing rod, a limiting disc is arranged at the tail end of the fixing rod and fixedly connected with the fixing rod, the fixing rod is sleeved with a sliding barrel, the sliding barrel can slide on the fixing rod, a connector is arranged at the front end of the fixing rod, an internal thread is arranged in the connector, and the fixing rod is sleeved with a screw. A sliding assembly is arranged on the fixed rod, the sliding assembly comprises a sliding groove, a round rod and a screw rod, an external thread is arranged on the head of the screw rod, and the fixed rod is connected and fixed by screwing an internal thread on a connector on the external thread on the screw rod. The situation that sharp friction noise generated by friction affects the health of operators is prevented, meanwhile, the use efficiency is improved, a round rod improves the force exerting mode, meanwhile, a rubber sleeve on the outer side can absorb vibration generated when a sliding barrel collides with a limiting disc, injury to the hands of the operators is reduced, and comfort is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to extractors, and particularly relates to a feeding scale screw extractor. Background Art

[0002] The installation method of the feeding scale screw is to directly insert it onto the transmission shaft after cleaning, and then rotate it slightly and fix it by the bayonet. Since fine powder will enter the gap between the screw and the transmission shaft in the powder feeding scale, after a long time, it will be stuck by the fine powder, resulting in the inability to pull out the screw during cleaning. Using a plastic hammer or screwdriver will damage the straightness of the screw and the coating on the screw surface. The working principle of the traditional feeding scale screw extractor is to screw the extractor onto the front end of the screw, and then use inertia to push and pull back and forth several times to pull out the screw. However, the frictional noise generated by pushing and pulling back and forth and the vibration generated by the impact will harm the physical health of the operator. Content of the Utility Model

[0003] The purpose of the utility model is to provide a feeding scale screw extractor to solve the problem that the frictional noise generated by pushing and pulling back and forth and the vibration generated by the impact in the above background art will harm the physical health of the operator.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A feeding scale screw extractor, comprising:

[0006] A fixed rod, a limit disk is arranged at the end of the fixed rod, the limit disk is fixedly connected with the fixed rod, a sliding cylinder is sleeved on the fixed rod, the sliding cylinder can slide on the fixed rod, a connecting head is arranged at the front end of the fixed rod, an internal thread is arranged inside the connecting head, and a sliding component is arranged on the fixed rod, and the sliding component includes a chute and a round rod;

[0007] A screw, an external thread is arranged at the head of the screw, and the fixed rod is connected and fixed to the external thread on the screw by screwing the internal thread on the connecting head.

[0008] As an optional implementation manner, a chute is arranged on the rod body of the fixed rod, the depth of the chute penetrates through the rod body of the fixed rod, a slider is arranged in the chute, the slider can only slide in the chute, connecting rods are arranged on both sides of the slider, and the outer ends of the two connecting rods penetrate through the chute and are fixedly connected to the inner side of the sliding cylinder.

[0009] As an optional implementation manner, a plurality of through holes are arranged inside the slider, the through holes penetrate through the upper and lower surfaces of the slider, and pulleys are arranged in the through holes, and the pulleys rotate in the through holes through rotating connectors.

[0010] As an alternative embodiment, a spring a is provided at one end of the chute away from the limit disk. One end of the spring a is fixedly connected to the inner wall of the chute, and a rubber block is provided at the other end of the spring a. Two symmetric circular rods are provided on the outer side of the sliding cylinder, and rubber sleeves are sleeved on the outer sides of the two circular rods.

[0011] As an alternative embodiment, the connecting head at the front end of the fixed rod is replaced with a cylinder. The cylinder is fixedly connected to the front end of the fixed rod. A cavity is formed by inward depression at the front end of the cylinder. Hollow cavities are symmetrically provided at the upper and lower ends of the cavity. An opening is provided inside the two hollow cavities and is communicated with the cavity.

[0012] As an alternative embodiment, a limit block is provided in the cavity. An arc-shaped block is provided on one side of the limit block close to the cavity. One end of the arc-shaped block is fixedly connected to the limit block. The other end of the arc-shaped block passes through the inner opening of the hollow cavity and is located in the cavity. A thread is provided at the other end of the arc-shaped block.

[0013] As an alternative embodiment, holes are provided on the upper and lower sides of the cylinder. The holes communicate the hollow cavity with the outside of the cylinder. A pull rod is provided on the other side of the limit block. One end of the pull rod is fixedly connected to the other side of the limit block. The other end of the pull rod passes through the hole, and a spring b is sleeved on the rod body of the pull rod.

[0014] As an alternative embodiment, a limit plate is provided at the other end of the pull rod. The inner side of the limit plate is fixedly connected to the other end of the pull rod. A pull ring is provided on the outer side of the limit plate. The pull ring is rotatably connected to the outer side of the limit plate through a rotating shaft.

[0015] Compared with the prior art, the present utility model provides a feeding scale screw extractor, which has the following

[0016] Beneficial effects:

[0017] 1. Improve comfort: This device reduces the friction when the sliding cylinder slides on the fixed rod through the internal pulley, preventing the sharp friction noise generated by the friction from affecting the health of the operator and improving the use efficiency at the same time. The circular rod improves the force application method, and the rubber sleeve on the outside can absorb the vibration when the sliding cylinder hits the limit disk, reducing the damage to the operator's hand and enhancing the comfort.

[0018] 2. Enhance applicability: By pulling the pull ring outwards, then sleeving the cylinder on the external thread of the screw head and releasing the pull ring, the spring b will cause the two arc-shaped blocks to clamp the screw head. It can be screwed to the top and fixed along the screw head through the thread on the arc-shaped block, and can be adaptively adjusted and fixed according to the screw heads of different diameters, enhancing the scope of use and applicability. Description of the drawings

[0019] Figure 1 This is a three-dimensional structure schematic diagram of the present utility model.

[0020] Figure 2 This is a front cross-sectional plane structure schematic diagram of the fixed rod of the present utility model.

[0021] Figure 3 This is a front cross-sectional plane structure schematic diagram of the cylinder of the present utility model.

[0022] Figure 4 This is a three-dimensional structure schematic diagram of the prototype of the present utility model.

[0023] In the figure: 1. Fixed rod; 2. Limit disc; 3. Slide cylinder; 4. Connector; 5. Internal thread; 6. Screw rod; 7. External thread; 8. Chute; 9. Slide block; 10. Connecting rod; 11. Through hole; 12. Rotating connector; 13. Pulley; 14. Spring a; 15. Rubber block; 16. Round rod; 17. Rubber sleeve; 18. Cylinder; 19. Cavity; 20. Hollow cavity; 21. Limit block; 22. Arc block; 23. Thread; 24. Hole; 25. Pull rod; 26. Spring b; 27. Limit plate; 28. Rotating shaft; 29. Pull ring. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides as Figures 1-4 shown

[0026] A feeding scale screw extractor, comprising a fixed rod 1, a limiting disk 2 is provided at the end of the fixed rod 1, the limiting disk 2 is fixedly connected to the fixed rod 1, the diameter of the limiting disk 2 is larger than that of the fixed rod 1, a sliding cylinder 3 is sleeved on the fixed rod 1, the sliding cylinder 3 can slide on the fixed rod 1, and the sliding of the sliding cylinder 3 will be blocked by the limiting disk 2. A connecting head 4 is provided at the front end of the fixed rod 1, the connecting head 4 is fixedly connected to the front end of the fixed rod 1, an internal thread 5 is provided inside the connecting head 4, and a sliding component is provided on the fixed rod 1. The sliding component is used to reduce the frictional resistance when the sliding cylinder 3 slides on the fixed rod 1, making it more labor-saving to use. At the same time, the sliding cylinder 3 is limited to prevent it from sliding out of the rod body of the fixed rod 1 during sliding. The sliding component includes a chute 8 and a round rod 16; a screw 6, an external thread 7 is provided at the head of the screw 6, and the fixed rod 1 is connected and fixed to the external thread 7 on the screw 6 by screwing the internal thread 5 on the connecting head 4. When in use, first screw the connecting head 4 at the front end of the fixed rod 1 onto the screw 6 for connection and fixation, then slide the sliding cylinder 3 outwards so that the sliding cylinder 3 hits the limiting disk 2, and use inertia to push and pull the sliding cylinder 3 back and forth several times, then the screw 6 can be pulled out from the machine.

[0027] As Figure 1 and Figure 2 shown, a chute 8 is provided on the rod body of the fixed rod 1, the depth of the chute 8 penetrates the rod body of the fixed rod 1, a slider 9 is provided in the chute 8, the slider 9 can only slide in the chute 8, connecting rods 10 are provided on both sides of the slider 9, the inner ends of the two connecting rods 10 are fixedly connected to the side surface of the slider 9, the outer ends of the two connecting rods 10 penetrate out of the chute 8, the diameter of the connecting rod 10 is smaller than the diameter of the opening of the chute 8, the connecting rod 10 will not rub against the opening of the chute 8, and the outer ends of the two connecting rods 10 are fixedly connected to the inner side of the sliding cylinder 3. By sliding the sliding cylinder 3, the slider 9 will be driven to slide in the chute 8. As Figure 2 shown, a plurality of through holes 11 are provided inside the slider 9, the through holes 11 are square, the through holes 11 penetrate the upper and lower surfaces of the slider 9, pulleys 13 are provided in the through holes 11, the pulleys 13 rotate in the through holes 11 through rotating connectors 12, the pulleys 13 are in contact with the upper and lower inner walls of the chute 8, and the slider 9 will not be in contact with the inner wall of the chute 8 when sliding in the chute 8. The slider 9 is driven to move in the chute 8 by the rolling contact of the pulleys 13 installed on the slider 9 and the upper and lower inner walls of the chute 8. Through this setting, the frictional resistance when the sliding cylinder 3 slides on the fixed rod 1 is reduced, making it more labor-saving to push the sliding cylinder 3 to slide, saving the force for removing the screw 6 from the machine, and also preventing the sharp frictional noise generated when the inner wall of the sliding cylinder 3 rubs against the fixed rod 1 from damaging the operator during the sliding of the sliding cylinder 3 on the fixed rod 1. As Figure 1 and Figure 2As shown, at one end of the chute 8 away from the limit disc 2, there is a spring a 14. One end of the spring a 14 is fixedly connected to the inner wall of the chute 8, and at the other end of the spring a 14, there is a rubber block 15 which is fixedly connected to the other end of the spring a 14. When the sliding cylinder 3 slides inward, the rubber block 15 and the spring a 14 can reduce the force of the inward impact when accidentally hitting the inner wall of the chute 8, preventing the screw rod 6 from fitting more tightly with the machine. On the outer side of the sliding cylinder 3, there are two symmetric circular rods 16. One end of the two circular rods 16 is fixedly connected to the outer side of the sliding cylinder 3, and rubber sleeves 17 are sleeved on the outer sides of the two circular rods 16. By holding the two circular rods 16 on the outer side of the sliding cylinder 3 with both hands, it is easier to exert force on the sliding of the sliding cylinder 3. At the same time, the rubber sleeves 17 sleeved on the outer sides of the circular rods 16 can reduce the vibration when the sliding cylinder 3 hits the limit disc 2 and reduce the damage to the hand. Through this device, the friction when the sliding cylinder 3 slides on the fixed rod 1 can be reduced, preventing the sharp friction noise generated by the friction from affecting the health of the operator. At the same time, the sliding cylinder 3 is limited to prevent excessive backward pushing and hitting the screw rod 6 and damaging the screw rod 6.

[0028] As Figure 1 and Figure 3 shown, the connection head 4 at the front end of the fixed rod 1 is replaced by a cylinder 18. The cylinder 18 is fixedly connected to the front end of the fixed rod 1. The front end of the cylinder 18 is recessed inward to form a cavity 19. The cross-section of the cavity 19 is circular. At the upper and lower ends of the cavity 19, there are symmetric hollow cavities 20. The inner sides of the two hollow cavities 20 are provided with openings communicating with the cavity 19. As Figure 3As shown in the figure, a limiting block 21 is provided in the cavity 19. The limiting block 21 is an arc-shaped plate, and the limiting block 21 can only slide in the cavity 19. An arc-shaped block 22 is provided on one side of the limiting block 21 close to the cavity 19. One end of the arc-shaped block 22 is fixedly connected to the limiting block 21, and the other end of the arc-shaped block 22 passes through the inner opening of the hollow cavity 20 and is located in the cavity 19. A thread 23 is provided at the other end of the arc-shaped block 22. The cylinder 18 can be screwed onto the external thread 7 at the head of the screw rod 6 through the threads 23 of the upper and lower arc-shaped blocks 22. Through holes 24 are provided on the upper and lower side surfaces of the cylinder 18, and the through holes 24 communicate the hollow cavity 20 with the outside of the cylinder 18. A pull rod 25 is provided on the other side of the limiting block 21. One end of the pull rod 25 is fixedly connected to the other side of the limiting block 21, and the other end of the pull rod 25 passes through the through hole 24. A spring b26 is sleeved on the rod body of the pull rod 25, and the spring b26 is located in the hollow cavity 20. The spring b26 can be adjusted according to the different diameters of the external thread 7 at the head of the screw rod 6, so that the cylinder 18 can be sleeved and fixed on the screw rod 6 with different diameters, enhancing the scope of use and applicability. A limiting plate 27 is provided at the other end of the pull rod 25. The inner side of the limiting plate 27 is fixedly connected to the other end of the pull rod 25. The limiting plate 27 is located outside the cylinder 18. A pull ring 29 is provided on the outer side of the limiting plate 27. The pull ring 29 is rotatably connected to the outer side of the limiting plate 27 through a rotating shaft 28. When in use, by pulling the pull ring 29 outwards, then sleeving the cylinder 18 on the external thread 7 at the head of the screw rod 6 and releasing the pull ring 29, the spring b26 will cause the two arc-shaped blocks 22 to clamp the head of the screw rod 6, and the cylinder 18 can be screwed to the top and fixed along the thread 23 on the arc-shaped block 22. Through this setting, it can be adaptively adjusted and fixed according to the screw rod 6 with different diameters, enhancing the scope of use and applicability.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding scale screw extractor, characterized in that, Comprising: A fixed rod (1), a limit disk (2) is provided at the end of the fixed rod (1), the limit disk (2) is fixedly connected to the fixed rod (1), a sliding cylinder (3) is sleeved on the fixed rod (1), the sliding cylinder (3) can slide on the fixed rod (1), a connection head (4) is provided at the front end of the fixed rod (1), an internal thread (5) is provided inside the connection head (4), and a sliding component is provided on the fixed rod (1), the sliding component includes a chute (8) and a round rod (16); A screw rod (6), an external thread (7) is provided at the head of the screw rod (6), and the fixed rod (1) is connected and fixed by screwing the internal thread (5) on the connection head (4) onto the external thread (7) on the screw rod (6).

2. The feeding scale screw extractor according to claim 1, characterized in that: A chute (8) is provided on the rod body of the fixed rod (1), the depth of the chute (8) penetrates through the rod body of the fixed rod (1), a slider (9) is provided in the chute (8), the slider (9) can only slide in the chute (8), connecting rods (10) are provided on both sides of the slider (9), and the outer ends of the two connecting rods (10) pass through the chute (8) and are fixedly connected to the inner side of the sliding cylinder (3).

3. The feeding scale screw extractor according to claim 2, characterized in that: A plurality of through holes (11) are provided inside the slider (9), the through holes (11) penetrate the upper and lower surfaces of the slider (9), pulleys (13) are provided in the through holes (11), and the pulleys (13) rotate in the through holes (11) through rotating connectors (12).

4. The feeding scale screw extractor according to claim 3, characterized in that: A spring a (14) is provided at one end of the chute (8) away from the limit disk (2), one end of the spring a (14) is fixedly connected to the inner wall of the chute (8), a rubber block (15) is provided at the other end of the spring a (14), two symmetrical round rods (16) are provided on the outer side of the sliding cylinder (3), and rubber sleeves (17) are sleeved on the outer sides of the two round rods (16).

5. A feeding scale screw extractor according to claim 1, characterized in that: The connection head (4) at the front end of the fixed rod (1) is replaced by a cylinder (18), the cylinder (18) is fixedly connected to the front end of the fixed rod (1), a cavity (19) is formed by inward depression at the front end of the cylinder (18), hollow cavities (20) are symmetrically provided at the upper and lower ends of the cavity (19), and openings are provided inside the two hollow cavities (20) to communicate with the cavity (19).

6. The feeding scale screw extractor according to claim 5, characterized in that: A limit block (21) is provided inside the cavity (19), an arc block (22) is provided on one side of the limit block (21) close to the cavity (19), one end of the arc block (22) is fixedly connected to the limit block (21), the other end of the arc block (22) passes through the inner opening of the hollow cavity (20) and is located inside the cavity (19), and a thread (23) is provided at the other end of the arc block (22).

7. The feeding scale screw extractor according to claim 6, characterized in that: Holes (24) are provided on the upper and lower side surfaces of the cylinder (18), the holes (24) communicate the hollow cavity (20) with the outside of the cylinder (18), a pull rod (25) is provided on the other side of the limit block (21), one end of the pull rod (25) is fixedly connected to the other side of the limit block (21), the other end of the pull rod (25) passes through the hole (24), and a spring b (26) is sleeved on the rod body of the pull rod (25).

8. The feeding scale screw extractor according to claim 7, characterized in that: The other end of the pull rod (25) is provided with a limit plate (27). The inner side of the limit plate (27) is fixedly connected to the other end of the pull rod (25). A pull ring (29) is provided on the outer side of the limit plate (27). The pull ring (29) is rotatably connected to the outer side of the limit plate (27) through a rotating shaft (28).

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