Metal expansion anchoring part
By introducing a tapered ejector, hexagonal sleeve, elastic clamping plate and clamping assembly into the expansion screw, the problem of poor expansion effect in the expansion screw is solved, better positioning effect and stability are achieved, and the fixing effect on holes with larger diameters is improved.
Patent Information
- Application Number
- CN202421808492.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing expansion screws have poor expansion effects, especially when the expansion screws are long, the tightening force in the middle or outside is insufficient, resulting in poor fixing effect on holes with larger diameters.
A metal expansion anchor is designed, using a tapered ejector, a hexagonal sleeve, an elastic clamp plate and a clamping assembly. The elastic clamp plate is connected to the hole through the ejection action of the tapered ejector, and the positioning effect and stability are improved through the coordination of the ejection block and the clamping plate.
It effectively improves the positioning effect and stability of the expansion anchor, enhances the tightening force in the middle or outside, improves the fixing effect on the hole with larger diameters, and extends the service life.
Smart Images
Figure CN222863820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion fasteners, in particular to a metal expansion anchor. Background Art
[0002] Expansion screws generally refer to metal expansion screws. The fixation of expansion screws uses the wedge-shaped slope to promote expansion and generate friction and grip to achieve the fixing effect. The screw has a thread on one end and a taper on the other. It is wrapped with an iron sheet. There are several cuts on the half of the iron sheet cylinder. They are stuffed into the holes in the wall together, and then the nut is locked. The nut pulls the screw outward and pulls the taper into the iron sheet cylinder. The iron sheet cylinder is expanded and then tightly fixed to the wall. It is generally used to fasten guardrails, awnings, air conditioners, etc. on cement, bricks and other materials.
[0003] The expansion screws in the prior art all have a tapered expansion head at one end inside, and only the inner end of the expansion screw can expand, while the expansion effect of the middle part of the expansion screw is not good. When the expansion screw is long, only the innermost end of the expansion screw has a tightening effect, while the tightening force in the middle or outer part is insufficient. Therefore, when drilling a hole, if the diameter of the hole is slightly larger than the diameter of the expansion screw, the fixing effect is not good. In view of the above, we propose a metal expansion anchor to solve the above problem. Utility Model Content
[0004] The main purpose of the utility model is to provide a metal expansion anchor, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A metal expansion anchor, comprising an anchor body,
[0007] The anchor body comprises an expansion rod, one end of which is provided with a thread, and the other end of which is provided with a conical ejector, a hexagonal sleeve is provided outside the expansion rod, and a nut is provided outside one end of the expansion rod, a pad is provided at the bottom of the nut, an elastic clamp is provided at the bottom of the hexagonal sleeve, and a clamping assembly is provided in the middle of the side wall of the hexagonal sleeve;
[0008] The clamping assembly comprises a connecting plate, a clamping plate is arranged on one side of the connecting plate, and an ejection tilting block is arranged on the other side of the connecting plate, and a supporting block is arranged on the side of the clamping plate.
[0009] Preferably, a thread is provided on the top outer wall of the expansion rod, and a nut is sleeved on the outside of the thread, a pad is fixedly connected to the bottom of the nut, the bottom of the pad is in contact with the top of the hexagonal sleeve, and a conical ejector is fixedly connected to the end of the expansion rod away from the thread, and the conical ejector is arranged corresponding to the hexagonal sleeve.
[0010] Preferably, an elastic clip is fixedly connected to one end of the hexagonal sleeve close to the conical ejector, there are multiple elastic clips, which are evenly distributed at the bottom of the hexagonal sleeve, and a through groove is provided between every two elastic clips, the through groove is connected to the interior of the hexagonal sleeve, a clip groove is provided on the outer wall of the elastic clip close to the bottom, and the clip groove is corresponding to the elastic clip, and an anti-slip groove is provided on the outer wall of the hexagonal sleeve.
[0011] Preferably, an ejection block is fixedly connected to the middle outer wall of the expansion rod, and the outer wall of the ejection block contacts the inner wall of the hexagonal sleeve. The top of the ejection block is provided with an arc surface, and the arc surface is arranged corresponding to the bottom of the ejection inclined block. The ejection block is located on the outer wall of one end of the expansion rod close to the thread.
[0012] Preferably, a mounting groove is opened in the middle of the side wall of the hexagonal sleeve, and there are three mounting grooves which are evenly distributed on the outer wall of the hexagonal sleeve, and the mounting grooves are connected to the interior of the hexagonal sleeve, and a connecting plate is fixedly connected to the bottom inner wall of the mounting groove, and the connecting plate is arranged corresponding to the mounting groove.
[0013] Preferably, the connecting plate is fixedly connected to a side of the connecting plate close to the inside of the hexagonal sleeve with an ejection inclined block, and an inclined surface is provided at the bottom of the side of the ejection inclined block away from the connecting plate, the inclined surface of the side of the ejection inclined block is arranged adjacent to the arc surface, the connecting plate is fixedly connected to a support block on the side away from the ejection inclined block, and the support block is fixedly connected to a clamping plate on the side away from the connecting plate, the clamping plate is arranged at an inclined angle on the side of the connecting plate, and the bottom of the clamping plate is fixedly connected to the connecting plate.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] In the utility model, the ejection of the elastic clamping plate is realized by the provided conical ejecting piece, so that the elastic clamping plate is clamped in the drilled hole, and the ejection of the ejection inclined block and the clamping plate is realized by the provided ejecting block, so that the clamping plate and the elastic clamping plate are used in coordination, the positioning effect is improved, and the elastic clamping plate is prevented from being damaged after long-term use, which affects the connection stability. Moreover, the hexagonal sleeve is provided in a hexagonal shape, so that the stability of the contact between the conical ejecting piece and the hole is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model device;
[0017] Figure 2 It is a schematic diagram of the structure of the device of the utility model;
[0018] Figure 3 It is a structural schematic diagram of the clamping assembly of the utility model;
[0019] Figure 4 It is a structural schematic diagram of the bottom of the hexagonal sleeve of the utility model.
[0020] In the figure: 1. anchor body; 2. expansion rod; 3. thread; 4. nut; 5. pad; 6. conical ejector; 7. hexagonal sleeve; 8. through slot; 9. elastic clamp; 10. clamping assembly; 11. ejector block; 12. arc surface; 13. connecting plate; 14. clamp; 15. support block; 16. ejector tilting block; 17. mounting groove; 18. anti-slip groove; 19. clamping groove. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a metal expansion anchor comprises an anchor body 1,
[0023] The anchor body 1 includes an expansion rod 2, one end of the expansion rod 2 is provided with a thread 3, and the other end of the expansion rod 2 is provided with a conical ejector 6, a hexagonal sleeve 7 is provided on the outside of the expansion rod 2, and a nut 4 is provided on the outside of one end of the expansion rod 2, a pad 5 is provided at the bottom of the nut 4, an elastic clamping plate 9 is provided at the bottom of the hexagonal sleeve 7, and a clamping assembly 10 is provided in the middle of the side wall of the hexagonal sleeve 7, a thread 3 is provided on the top outer wall of the expansion rod 2, and a nut 4 is sleeved on the outside of the thread 3, and a pad 5 is fixedly connected to the bottom of the nut 4, and the bottom of the pad 5 is connected to the top of the hexagonal sleeve 7. The expansion rod 2 is in contact with the thread 3, and the end of the expansion rod 2 away from the thread 3 is fixedly connected with a conical ejector 6, and the conical ejector 6 is correspondingly arranged with the hexagonal sleeve 7, and the end of the hexagonal sleeve 7 close to the conical ejector 6 is fixedly connected with an elastic clamping plate 9, and there are multiple elastic clamping plates 9, which are evenly distributed at the bottom of the hexagonal sleeve 7, and a through groove 8 is arranged between every two elastic clamping plates 9, and the through groove 8 is connected with the inside of the hexagonal sleeve 7, and a clamping groove 19 is opened on the outer wall of the elastic clamping plate 9 close to the bottom, and the clamping groove 19 is correspondingly arranged with the elastic clamping plate 9, and an anti-slip groove 18 is opened on the outer wall of the hexagonal sleeve 7;
[0024] The clamping assembly 10 includes a connecting plate 13, a clamping plate 14 is provided on one side of the connecting plate 13, and an ejection tilting block 16 is provided on the other side of the connecting plate 13, and a supporting block 15 is provided on the side of the clamping plate 14, and an ejection block 11 is fixedly connected to the middle outer wall of the expansion rod 2, and the outer wall of the ejection block 11 contacts the inner wall of the hexagonal sleeve 7, and an arc surface 12 is provided on the top of the ejection block 11, and the arc surface 12 is correspondingly arranged with the bottom of the ejection tilting block 16, and the ejection block 11 is located on the outer wall of one end of the expansion rod 2 close to the thread 3, and a mounting groove 17 is opened in the middle of the side wall of the hexagonal sleeve 7, and there are three mounting grooves 17, which are evenly distributed on the outer wall of the hexagonal sleeve 7, and the mounting groove 17 is connected to the inside of the hexagonal sleeve 7, and the connecting plate 13 is fixedly connected to the inner wall of the bottom of the mounting groove 17, and the connecting plate 13 is arranged correspondingly to the mounting groove 17, and the side of the connecting plate 13 close to the inside of the hexagonal sleeve 7 is fixedly connected with the ejection tilting block 16 Block 16, and the bottom of the side of the ejection inclined block 16 away from the connecting plate 13 is provided with an inclined surface, the inclined surface of the side of the ejection inclined block 16 is arranged adjacent to the arc surface 12, the side of the connecting plate 13 away from the ejection inclined block 16 is fixedly connected with a support block 15, and the side of the support block 15 away from the connecting plate 13 is fixedly connected with a clamping plate 14, the clamping plate 14 is arranged at an inclined angle on the side of the connecting plate 13, and the bottom of the clamping plate 14 is fixedly connected to the connecting plate 13, the ejection of the elastic clamping plate 9 is realized by the arranged conical ejection piece 6, so that the elastic clamping plate 9 is clamped in the drilled hole, and the ejection of the ejection inclined block 16 and the clamping plate 14 is realized by the arranged ejection block 11, so that the clamping plate 14 is used in conjunction with the elastic clamping plate 9, the positioning effect is improved, and the elastic clamping plate 9 is prevented from being damaged after long-term use, which affects the connection stability, and the hexagonal sleeve 7 is hexagonal, which improves the stability of the contact between the conical ejection piece 6 and the hole.
[0025] It should be noted that the utility model is a metal expansion anchor. When in use, the hexagonal sleeve 7 and the expansion rod 2 are inserted into the drilled hole at the same time, the nut 4 is threadedly sleeved on the end of the expansion rod 2 provided with the thread 3, the nut 4 and the thread 3 are meshed with each other, and the nut 4 is rotated to drive the pad 5 to move the rod, and the side of the pad 5 away from the nut 4 contacts with one end of the hexagonal sleeve 7, so that the nut 4 drives the thread 3 and the expansion rod 2 to stretch, so that the conical ejector 6 at the end of the expansion rod 2 away from the thread 3 moves in the direction of the hexagonal sleeve 7, so that the conical ejector 6 can realize the ejection of the elastic card plate 9 at one end of the hexagonal sleeve 7, and a through groove 8 is provided in the middle of each two elastic card plates 9, so as to facilitate the ejection of the elastic card plate 9, so that the bottom end of the elastic card plate 9 is clamped in the inside of the hole, and a card groove 19 is provided on the outer wall of the elastic card plate 9 to increase the elasticity The friction between the elastic card plate 9 and the contact surface of the hole, and at the same time, an ejection block 11 is arranged in the middle of the expansion rod 2, and an arc surface 12 is opened at the top of the ejection block 11, and the arc surface 12 contacts the inclined surface of the ejection inclined block 16 extending to the inside of the conical ejection member 6. When the expansion rod 2 is stretched, the ejection block 11 ejects the ejection inclined block 16 along the inclination of the ejection inclined block 16, and the ejection inclined block 16 drives the connecting plate 13 and the supporting block 15 to eject the card plate 14, so that the card plate 14 is clamped in the inside of the hole. The card plate 14 is used in conjunction with the elastic card plate 9 to further increase the stability of the connection and improve the service life of the device. The hexagonal sleeve 7 is arranged in a hexagonal shape to prevent the hexagonal sleeve 7 from rotating during use, affecting the stability of the connection, and an anti-slip groove 18 is arranged on the outer wall of the hexagonal sleeve 7 to further increase the stability of the installation of the hexagonal sleeve 7.
[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A metal expansion anchor, comprising an anchor body (1), characterized in that: The anchor body (1) comprises an expansion rod (2), one end of the expansion rod (2) is provided with a thread (3), and the other end of the expansion rod (2) is provided with a conical ejector (6), the outside of the expansion rod (2) is provided with a hexagonal sleeve (7), and one end of the expansion rod (2) is provided with a nut (4), the bottom of the nut (4) is provided with a pad (5), the bottom of the hexagonal sleeve (7) is provided with an elastic clamping plate (9), and a clamping assembly (10) is provided in the middle of the side wall of the hexagonal sleeve (7); The clamping assembly (10) comprises a connecting plate (13), a clamping plate (14) is arranged on one side of the connecting plate (13), and an ejection tilting block (16) is arranged on the other side of the connecting plate (13), and a supporting block (15) is arranged on the side of the clamping plate (14).
2. A metal expansion anchor according to claim 1, characterized in that: A thread (3) is provided on the top outer wall of the expansion rod (2), and a nut (4) is sleeved on the outside of the thread (3); a pad (5) is fixedly connected to the bottom of the nut (4), and the bottom of the pad (5) is in contact with the top of the hexagonal sleeve (7); an end of the expansion rod (2) away from the thread (3) is fixedly connected to a conical ejector (6), and the conical ejector (6) and the hexagonal sleeve (7) are arranged correspondingly.
3. A metal expansion anchor according to claim 2, characterized in that: An elastic clamping plate (9) is fixedly connected to one end of the hexagonal sleeve (7) close to the conical ejector (6). There are a plurality of elastic clamping plates (9) which are evenly distributed at the bottom of the hexagonal sleeve (7). A through groove (8) is arranged between every two elastic clamping plates (9). The through groove (8) is connected to the inside of the hexagonal sleeve (7). A clamping groove (19) is arranged on the outer wall of the elastic clamping plate (9) close to the bottom. The clamping groove (19) is arranged corresponding to the elastic clamping plate (9). An anti-slip groove (18) is arranged on the outer wall of the hexagonal sleeve (7).
4. A metal expansion anchor according to claim 1, characterized in that: An ejection block (11) is fixedly connected to the middle outer wall of the expansion rod (2), and the outer wall of the ejection block (11) contacts the inner wall of the hexagonal sleeve (7). The top of the ejection block (11) is provided with an arc surface (12), and the arc surface (12) is arranged corresponding to the bottom of the ejection tilting block (16). The ejection block (11) is located on the outer wall of one end of the expansion rod (2) close to the thread (3).
5. The metal expansion anchor according to claim 1, characterized in that: A mounting groove (17) is provided in the middle of the side wall of the hexagonal sleeve (7). There are three mounting grooves (17) which are evenly distributed on the outer wall of the hexagonal sleeve (7). The mounting grooves (17) are connected to the inside of the hexagonal sleeve (7). A connecting plate (13) is fixedly connected to the inner wall of the bottom of the mounting groove (17), and the connecting plate (13) and the mounting groove (17) are arranged correspondingly.
6. A metal expansion anchor according to claim 5, characterized in that: A side of the connecting plate (13) close to the inside of the hexagonal sleeve (7) is fixedly connected to an ejection inclined block (16), and a bottom of the side of the ejection inclined block (16) away from the connecting plate (13) is provided with an inclined surface, and the inclined surface of the side of the ejection inclined block (16) is arranged adjacent to the arc surface (12), and a side of the connecting plate (13) away from the ejection inclined block (16) is fixedly connected to a support block (15), and a side of the support block (15) away from the connecting plate (13) is fixedly connected to a clamping plate (14), and the clamping plate (14) is arranged at an inclined angle on the side of the connecting plate (13), and the bottom of the clamping plate (14) is fixedly connected to the connecting plate (13).