Magnetic clamp
By using a magnetic clip design, the magnetic structure and elastic components solve the problem of time-consuming and labor-intensive installation and removal of floor covers, enabling fast and labor-saving operation, and making it suitable for picking up items in performance venues and special scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI CHANGHENGGE PERFORMING ARTS CULTURE CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-12
AI Technical Summary
During the setup and dismantling of the performance venue, the installation and removal of the floor coverings are time-consuming and labor-intensive, and can easily lead to dirty hands, affecting work efficiency and safety.
Design a magnetic clamp that utilizes a magnetic structure and elastic elements to quickly attract and detach floor covers via a handle, simplifying the operation process.
It enables rapid movement of the ground cover, saving time and effort, improving work efficiency, avoiding hand dirt, ensuring safety, and can be used for adsorption and retrieval of iron objects in special scenarios.
Smart Images
Figure CN224226624U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of magnetic clamp technology, and more specifically, to a magnetic clamp. Background Technology
[0002] Tourist areas require the installation of various pieces of equipment, such as performance stages, for shows. During setup, these stages need to be connected to fixed ground equipment (of which there are hundreds) to ensure reliability and stability. Typically, holes are drilled in the ground, and the equipment is fixed into these holes. When not performing, the holes are covered with floor covers, and to ensure the safety of pedestrians (preventing them from tripping), these floor covers are usually flush with the ground.
[0003] During performances, the floor covers need to be manually removed, which is not only time-consuming and labor-intensive with high labor costs, but also leads to problems such as dirty hands.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a magnetic clamp that can quickly move floor covers, saving time and effort.
[0006] According to one aspect of this disclosure, a magnetic clip is provided, comprising:
[0007] Tube with a through stepped hole;
[0008] A handle is attached to the tube, and the smaller diameter end of the stepped hole is positioned close to the handle;
[0009] The magnetic structure includes a magnetic element and a connecting rope. The magnetic element is located at the large-diameter end of the stepped hole, and the height of the magnetic element is less than the depth of the large-diameter end of the stepped hole. The connecting rope is located inside the stepped hole, with a first end connected to the magnetic element and a second end connected to the handle. There is a gap between the sidewall of the magnetic element and the sidewall of the large-diameter end of the stepped hole.
[0010] An elastic element is disposed between the magnetic element and the first step surface of the stepped hole;
[0011] The magnetic component has a first position and a second position. In the first position, the distance between the end of the magnetic component away from the handle and the handle is not less than the distance between the end of the tube away from the handle and the handle. In the second position, the distance between the end of the magnetic component away from the handle and the handle is less than the distance between the end of the tube away from the handle and the handle.
[0012] In one embodiment of this disclosure, the connecting rope is a steel wire rope.
[0013] In one embodiment of this disclosure, the width of the gap is 0.5mm-2mm.
[0014] In one embodiment of this disclosure, the elastic element is a spring.
[0015] In one embodiment of this disclosure, the magnetic component has a magnetic block, and the magnetic block has a first structure and a second structure connected in sequence;
[0016] The first structure is disposed on the side of the second structure near the handle; the orthographic projection of the first structure in the first direction is located within the orthographic projection of the second structure in the first direction, and the orthographic projection of the first structure in the first direction is smaller than the orthographic projection of the second structure in the first direction, thereby forming a second stepped surface at the connection between the first structure and the second structure;
[0017] The first end of the connecting rope is connected to the first structure, and the second end is connected to the handle. The elastic element is sleeved on the first structure, with one end abutting against the second step surface and the other end abutting against the second step surface.
[0018] The outer diameter of the elastic element is not greater than the diameter of the second structure.
[0019] In one embodiment of this disclosure, the first structure has a fixing hole, the axis of which is perpendicular to the axis of the tube.
[0020] The connecting rope passes through the fixing hole.
[0021] In one embodiment of this disclosure, the magnetic component further includes a fixing rod;
[0022] The first structure has a fixing hole, the axis of which is perpendicular to the axis of the tube; the fixing rod is disposed in the fixing hole, and both ends of the fixing rod protrude from the fixing hole; the connecting rope is connected to the fixing rod.
[0023] In one embodiment of this disclosure, the magnetic component includes a covering shell and a magnetic block;
[0024] The covering shell has a shell, and a mounting groove is provided on one side of the shell. The depth of the mounting groove is greater than the height of the magnetic block. The side of the shell near the handle has a through hole that connects the mounting groove and the stepped hole.
[0025] The connecting rope includes a rope body and a fixing knot. The diameter of the through hole is larger than the diameter of the rope body and smaller than the diameter of the fixing knot. The fixing knot is located in the mounting groove. The rope body passes through the through hole and is connected to the handle.
[0026] The magnetic block is disposed in the mounting groove and the magnetic block is interference-fitted with the mounting groove; the fixing knot is located between the magnetic block and the through hole; in the second position, the magnetic block is flush with the tube.
[0027] One end of the elastic element abuts against the housing, and the other end abuts against the first stepped surface.
[0028] In one embodiment of this disclosure, the magnetic component further includes a plurality of fixing screws, the housing has corresponding threaded holes, and the magnetic block has corresponding snap-fit grooves;
[0029] Each of the fixing screws is threaded through the housing and then engaged in the engagement groove.
[0030] In one embodiment of this disclosure, the cover shell near the handle side also has a protruding post disposed on the shell, and the through hole extends out of the protruding post;
[0031] The elastic element is fitted onto the protruding post.
[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0034] Figure 1 This is a schematic diagram of the structure of the magnetic clamp in one embodiment of the present disclosure.
[0035] Figure 2 This is a schematic diagram of the structure of the magnetic component in one embodiment of the present disclosure.
[0036] Figure 3 This is a schematic diagram of the structure of the magnetic component in one embodiment of the present disclosure.
[0037] Figure 4 This is a schematic diagram of the structure of the magnetic component in one embodiment of the present disclosure.
[0038] Explanation of reference numerals in the attached figures:
[0039] 1. Tube; 2. Handle; 3. Connecting rope; 31. Rope body; 32. Fixing knot; 4. Spring; 5. Magnetic block; 51. First structure; 52. Second structure; 53. Second step surface; 6. Fixing rod; 7. Cover shell; 71. Shell; 72. Protruding column; 8. First step surface; 9. Mounting groove; 10. Through hole; 11. Fixing screw. Detailed Implementation
[0040] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.
[0041] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.
[0042] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion meaning and that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” etc. are used only as markers and are not a limitation on the number of objects or their order.
[0043] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.
[0044] During performances in tourist areas, multiple different pieces of equipment need to be installed, such as a stage. During setup, these need to be connected to fixed ground equipment to ensure reliability and stability. A common technique involves drilling holes in the ground and securing the equipment (such as anchor rings) inside these holes. When not performing, the holes are covered with a floor cover. To ensure the safety of pedestrians (preventing them from tripping), the floor cover is usually flush with the ground.
[0045] During performances, the floor cover (made of iron) needs to be manually pried open to expose the fixing equipment for securing the stage, etc. This manual method is not only time-consuming and laborious, but also leads to problems such as dirty hands.
[0046] To address the aforementioned issues, this disclosure provides a magnetic clamp that can quickly remove a floor cover to expose the fixed device using magnetic attraction, and then replace the floor cover to cover the fixed device.
[0047] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The magnetic clamp includes a tube 1, a handle 2, a magnetic attraction structure, and an elastic element. The tube 1 is hollow, the magnetic attraction structure is located inside the tube 1 and connected to the handle 2, and the elastic element is located inside the tube 1 and abuts against the inner wall of the tube 1 between the tube 1 and the magnetic attraction structure.
[0048] In this disclosure, the magnetic attraction structure has a first position and a second position. In the first position, the lower surface of the magnetic attraction structure is flush with or extends beyond the tube 1 (in other words, the distance between the end of the magnetic attraction structure away from the handle 2 and the handle 2 is not less than the distance between the end of the tube 1 away from the handle 2 and the handle 2). At this time, the elastic element is in an unextended state. In the second position, the magnetic attraction structure retracts into the tube 1 (in other words, the distance between the end of the magnetic attraction structure away from the handle 2 and the handle 2 is less than the distance between the end of the tube 1 away from the handle 2 and the handle 2). At this time, the elastic element is in a compressed state.
[0049] In one embodiment of this disclosure, the size of the tube 1 is smaller than the size of the floor cover to be attracted. In this way, after the magnetic structure is retracted into the tube 1 (in the second position), the floor cover can be quickly separated from the magnetic structure under the constraint of the tube 1.
[0050] In one embodiment of this disclosure, in the first position, the lower surface of the magnetic structure is flush with the tube 1, where the lower surface refers to the side that attaches to the floor cover. This way, the floor cover can be separated from the magnetic structure simply by moving the magnetic structure a short distance toward the handle 2, which is more effortless and facilitates the protection of the magnetic structure. It also avoids the problem of knotting caused by the long connecting rope 3.
[0051] When using the magnetic clamp disclosed herein, the magnetic clamp is placed above the floor cover, and the magnetic structure attracts the floor cover. After the floor cover is moved away, the handle 2 is pressed to retract the magnetic structure into the tube 1 (in the second position). The floor cover is separated from the magnetic structure under the restriction of the tube 1. Then, after the handle 2 releases the force, the magnetic structure returns to its original position under the elastic force of the elastic element (in the first position).
[0052] In one embodiment of this disclosure, the tube 1 has a through stepped hole inside. It is understood that the stepped hole has a small-diameter end and a large-diameter end, and the stepped hole has a first stepped surface 8 at the junction of the small-diameter end and the large-diameter end.
[0053] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The handle 2 is mounted on the tube 1, and the small diameter end of the stepped hole is set towards the handle 2, while the large diameter end of the stepped hole is used to set the magnetic attraction structure.
[0054] In one embodiment of this disclosure, the tube 1 can be integrally formed. In other embodiments, the tube 1 can be assembled by sequentially splicing multiple hollow tubes. The diameter of each tube can gradually decrease, and the tubes can be stably connected by interference fit, with one end of the tube connected to the handle 2. Stepped holes (one-layer stepped hole, two-layer stepped hole, or multi-layer stepped hole) can be formed by splicing the tubes according to their different inner diameters. The tubes near the handle 2 can be made of stainless steel, while the remaining tubes can be made of plastic (e.g., polyvinyl chloride). In this way, the tube 1 can be assembled using some discarded pipes of different diameters without the need for additional processing of stepped holes or other structures, resulting in a simple structure and cost savings.
[0055] In one embodiment of this disclosure, a magnetic attraction structure is disposed inside the tube 1. The magnetic attraction structure includes a magnetic component and a connecting rope 3. One end of the connecting rope 3 is connected to the magnetic component, and the other end is connected to a handle 2. Thus, under the action of the handle 2, the magnetic component can be pulled up or down by the connecting rope 3. After the magnetic component is lowered, it can be attracted to the ground cover (at a first position). After the magnetic component is pulled up, it is retracted into the tube 1 and separated from the ground cover (at a second position).
[0056] In one embodiment of this disclosure, the connecting rope 3 is made of a non-elastic material, exhibiting substantial non-extensibility under the pulling force of the handle 2. This ensures stable control of the magnetic structure by the handle 2. In one example, the connecting rope 3 is a steel wire rope, which not only ensures stable control of the magnetic structure by the handle 2 but also gives the magnetic clamp a longer service life.
[0057] This disclosure presents a first embodiment, in which see [link to first embodiment]. Figure 1The magnetic component is a magnetic block 5. Specifically, the magnetic block 5 has a first structure 51 and a second structure 52 connected sequentially and coaxially. In this example, the first structure 51 and the second structure 52 are integrally formed. The first structure 51 is located on the side of the second structure 52 near the handle 2. The orthographic projection of the first structure 51 in a first direction is within the orthographic projection of the second structure 52 in the first direction, and the orthographic projection of the first structure 51 in the first direction is smaller than the orthographic projection of the second structure 52 in the first direction. In other words, the edge of the first structure 51 is within the edge of the second structure 52 (the edge of the second structure 52 surrounds the edge of the first structure 51, and there is a certain distance between the edge of the second structure 52 and the edge of the first structure 51), thus facilitating the placement of the elastic component within a limited space. In one example, the shape of the first structure 51 and the shape of the second structure 52 can be the same; for example, both the first structure 51 and the second structure 52 can be circular, rectangular, etc. Of course, in other examples, the shape of the first structure 51 and the shape of the second structure 52 can be different; for example, one can be circular and the other rectangular, etc. The first direction of this disclosure refers to the axial direction of the tube 1, and the second direction refers to the direction perpendicular to the axial direction of the tube 1.
[0058] In this example, a second stepped surface 53 is formed at the connection between the first structure 51 and the second structure 52. The first structure 51 has a fixing hole that extends along a second direction (in other words, the axis of the fixing hole is perpendicular to the axis of the tube 1). The connecting rope 3 passes through the fixing hole and is connected to the handle 2. In this way, the handle 2 can drive the magnetic block 5 to move through the connecting rope 3.
[0059] In one embodiment of this disclosure, the elastic element is a spring 4, which is sleeved on the outside of the first structure 51. One end of the spring 4 abuts against the first step surface 8, and the other end abuts against the second step surface 53. When the magnetic attraction structure is in the first position, the spring 4 is in an unstretched state. This ensures that the spring 4 is always in contact with the first step surface 8 and the second step surface 53, facilitating the fixation of the spring 4's position. Furthermore, the abutting method allows for independent replacement of individual components. For example, when the spring 4 needs to be replaced, the tube 1 and the magnetic block 5 will not be damaged.
[0060] In one example, the diameter of spring 4 is slightly smaller than the diameter of tube 1. For instance, the difference between the diameter of spring 4 and the diameter of the large-diameter end of the stepped hole is 0.5-2 mm. For example, the difference between the diameter of spring 4 and the large-diameter end of the stepped hole is 0.5 mm; for example, the difference between the diameter of spring 4 and the large-diameter end of the stepped hole is 0.85 mm; for example, the difference between the diameter of spring 4 and the large-diameter end of the stepped hole is 1.34 mm; for example, the difference between the diameter of spring 4 and the large-diameter end of the stepped hole is 2 mm, etc. This can reduce the friction between spring 4 and tube 1, ensuring the smooth compression and recovery of spring 4, and also ensuring the stability of the position of spring 4.
[0061] In one embodiment of this disclosure, the first step surface 8 is an inclined surface. The spring 4 can be a conical spring, which can achieve stable limiting of the spring 4 and reduce the possibility of instability in the movement of the magnetic block 5 due to the deflection of the spring 4.
[0062] In one example, the diameter of spring 4 is no greater than the diameter of the second structure 52. This ensures that spring 4 and the second structure 52 have a good contact area, further ensuring the stability of spring 4 and the reliability of the magnetic clamp.
[0063] In one embodiment of this disclosure, there is a gap of 0.5mm-2mm between the sidewall of the magnetic block 5 and the sidewall of the large-diameter end. This reduces the friction between the magnetic block 5 and the tube 1, ensuring the movement of the magnetic block 5 under the action of the handle 2, and also prevents large displacement of the position of the magnetic block 5, thus ensuring stability. For example, the size of this gap is 0.5mm, 0.56mm, 0.85mm, 1.25mm, 1.69mm, 2mm, etc.
[0064] The magnetic clamp disclosed herein has a simple structure, is easy to operate, and will not get your hands dirty.
[0065] In one embodiment of this disclosure, the handle 2 can be the handle 2 on the waste bin. In other words, the solution in this disclosure can be modified from an existing waste bin, using the handle 2 on the waste bin to achieve waste reuse and save costs.
[0066] In this disclosure, when using the magnetic clip, the magnetic structure is kept in the first position (the handle 2 is not subjected to external force), the magnetic clip is placed on the floor cover, the magnetic component attracts the floor cover, and then the magnetic clip and the floor cover are moved to another place to remove the floor cover.
[0067] When the handle 2 applies external force, the magnetic component is retracted into the tube 1 through the connecting rope 3 and placed in the second position. Under the constraint of the tube 1, the floor cover will detach from the magnetic component. After the handle 2 removes the external force, the magnetic component will return to the first position under the action of the spring 4 to perform the adsorption of the next floor cover.
[0068] Of course, the magnetic clip disclosed herein can also be used to retrieve ferrous objects, such as keys, glasses, or other metal items, in confined spaces or underwater (in which case, there is no need to limit the size of the ferrous object). Its powerful magnetism can easily handle the attraction and retrieval of various ferrous objects, providing an efficient and convenient solution for item retrieval in these special scenarios.
[0069] This disclosure also provides a second embodiment, which differs from the first embodiment in that, see [link to relevant documentation]. Figure 1 and Figure 2 The magnetic component includes a magnetic block 5 and a fixing rod 6. The fixing rod 6 is disposed in a fixing hole on the magnetic block 5, and both ends of the fixing rod 6 extend out of the fixing hole. The connecting rope 3 is fixed to the fixing rod 6.
[0070] In this embodiment, the fixing rod 6 is interference-fitted with the fixing hole, which ensures the stability of the position of the fixing rod 6 and the magnetic block 5.
[0071] In this disclosure, a fixing rod 6 is installed inside the fixing hole, and the fixing rod 6 is used to connect with the connecting rope 3, avoiding direct contact between the wire rope and the magnetic block 5 (avoiding friction between the wire rope and the magnetic block 5), which can improve the service life of the magnetic block 5 and the wire rope. Furthermore, in the event of damage to any component, it can be quickly and independently replaced, which helps to reduce costs.
[0072] This disclosure also provides a third embodiment, in which see [link to third embodiment]. Figure 1 , Figure 3 and Figure 4 The magnetic component may include a covering shell 7 and a magnetic block 5;
[0073] Optionally, the casing 7 has a housing 71. A mounting groove 9 is provided on one side of the housing 71, and a through hole 10 communicating with the mounting groove 9 is provided on the side of the housing 71 near the handle 2. The opening end of the mounting groove 9 faces away from the handle 2, and both ends of the through hole 10 extend along a first direction; in other words, the axis of the through hole 10 is parallel to the axis of the tube 1. In this disclosure, the axis of the through hole 10 coincides with the axis of the housing 71. The connecting rope 3 includes a rope body 31 and a fixing knot 32. The diameter of the through hole 10 is larger than the diameter of the rope body 31 and smaller than the diameter of the fixing knot 32. This allows the fixing knot 32 to be confined within the mounting groove 9; the fixing knot 32 is located within the mounting groove 9, and the rope body 31 passes through the through hole 10 and connects to the handle 2. The magnetic block 5 is located within the mounting groove 9 and is interference-fitted with the mounting groove 9 (achieving fixation between the magnetic block 5 and the mounting groove 9 without the aid of external structures). The fixing knot 32 is located between the magnetic block 5 and the through hole 10. In this disclosure, the connecting rope 3 is knotted to connect the connecting rope 3 to the magnetic component, and the connecting rope 3 does not contact the magnetic block 5, making assembly simpler and extending its service life. Furthermore, this magnetic clamp is simple to assemble and easy to operate.
[0074] In one embodiment of this disclosure, the depth of the mounting groove 9 is greater than the height of the magnetic block 5 (the depth of the mounting groove 9 in this disclosure refers to the dimension of the mounting groove 9 along the first direction, and the height of the magnetic block 5 refers to the dimension of the magnetic block 5 along the first direction). After the magnetic block 5 is installed in the mounting groove 9, the end of the magnetic block 5 away from the handle 2 is flush with the end of the housing 71 away from the handle 2. In this way, the magnetic block 5 can be stably attracted to the ground cover.
[0075] Optionally, to further ensure a stable connection between the housing 71 and the magnetic block 5, the magnetic component also includes multiple fixing screws 11. The housing 71 has corresponding threaded holes, and the magnetic component has corresponding snap-fit grooves. Each fixing screw 11 passes through the housing 71 and snaps into the snap-fit groove.
[0076] Optional, see Figure 4 The housing 71 covering the shell 7 has a protruding post 72 on the side near the handle 2, and the through hole 10 extends out of the protruding post 72; the spring 4 is sleeved on the protruding post 72, and one end of the spring 4 abuts against the housing 71 and the other end abuts against the first step surface 8.
[0077] In this example, there is a gap of 0.5mm-2mm between the side wall of the housing 71 and the side wall of the large-diameter end. This reduces the friction between the magnetic block 5 and the tube 1, ensuring the movement of the magnetic block 5 under the action of the handle 2, and also prevents large displacement of the position of the magnetic block 5, thus ensuring stability. For example, the size of this gap is 0.5mm, 0.56mm, 0.85mm, 1.25mm, 1.69mm, 2mm, etc.
[0078] The magnetic clip of this disclosure can be modified from existing waste clips to achieve the secondary utilization of waste. Furthermore, its components are simple, easy to operate, and low in cost. Of course, the magnetic clip of this disclosure can also be remanufactured.
[0079] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.
Claims
1. A magnetic clamp, characterized in that, include: Tube (1) has a through stepped hole; A handle (2) is connected to the tube (1), and the small-diameter end of the stepped hole is located close to the handle (2); The magnetic structure includes a magnetic element and a connecting rope (3). The magnetic element is located at the large-diameter end of the stepped hole, and the height of the magnetic element is less than the depth of the large-diameter end of the stepped hole. The connecting rope (3) is located inside the stepped hole. The first end of the connecting rope (3) is connected to the magnetic element, and the second end is connected to the handle (2). There is a gap between the side wall of the magnetic element and the side wall of the large-diameter end of the stepped hole. An elastic element is disposed between the magnetic element and the first step surface (8) of the stepped hole; The magnetic component has a first position and a second position. In the first position, the distance between the end of the magnetic component away from the handle (2) and the handle (2) is not less than the distance between the end of the tube (1) away from the handle (2) and the handle (2). In the second position, the distance between the end of the magnetic component away from the handle (2) and the handle (2) is less than the distance between the end of the tube (1) away from the handle (2) and the handle (2).
2. The magnetic clamp according to claim 1, characterized in that, The connecting rope (3) is a steel wire rope.
3. The magnetic clamp according to claim 1, characterized in that, The width of the gap is 0.5mm-2mm.
4. The magnetic clamp according to claim 1, characterized in that, The elastic element is a spring (4).
5. The magnetic clamp according to claim 2, characterized in that, The magnetic component has a magnetic block (5), and the magnetic block (5) has a first structure (51) and a second structure (52) connected in sequence; The first structure (51) is disposed on the side of the second structure (52) near the handle (2); the orthographic projection of the first structure (51) in the first direction is located within the orthographic projection of the second structure (52) in the first direction, and the orthographic projection of the first structure (51) in the first direction is smaller than the orthographic projection of the second structure (52) in the first direction, thereby forming a second step surface (53) at the connection between the first structure (51) and the second structure (52); The first end of the connecting rope (3) is connected to the first structure (51), and the second end is connected to the handle (2). The elastic element is sleeved on the first structure (51), with one end abutting against the second step surface (53) and the other end abutting against the second step surface (53). The outer diameter of the elastic element is not greater than the diameter of the second structure (52).
6. The magnetic clamp according to claim 5, characterized in that, The first structure (51) has a fixing hole, the axis of which is perpendicular to the axis of the tube (1); The connecting rope (3) passes through the fixing hole.
7. The magnetic clamp according to claim 5, characterized in that, The magnetic component also has a fixing rod (6); The first structure (51) has a fixing hole, the axis of which is perpendicular to the axis of the tube (1); the fixing rod (6) is disposed in the fixing hole, and both ends of the fixing rod (6) pass through the fixing hole; the connecting rope (3) is connected to the fixing rod (6).
8. The magnetic clamp according to claim 2, characterized in that, The magnetic component includes a covering shell (7) and a magnetic block (5); The covering shell (7) has a shell (71), and a mounting groove (9) is provided on one side of the shell (71). The depth of the mounting groove (9) is greater than the height of the magnetic block (5). The shell (71) has a through hole (10) on the side near the handle (2) that connects the mounting groove (9) and the stepped hole. The connecting rope (3) includes a rope body (31) and a fixing knot (32). The diameter of the through hole (10) is larger than the diameter of the rope body (31) and smaller than the diameter of the fixing knot (32). The fixing knot (32) is located in the mounting groove (9). The rope body (31) passes through the through hole (10) and is connected to the handle (2). The magnetic block (5) is disposed in the mounting groove (9) and the magnetic block (5) is press-fitted with the mounting groove (9); the fixing knot (32) is located between the magnetic block (5) and the through hole (10); in the second position, the magnetic block (5) is flush with the tube (1); One end of the elastic element abuts against the housing (71), and the other end abuts against the first stepped surface (8).
9. The magnetic clamp according to claim 8, characterized in that, The magnetic component also includes multiple fixing screws (11), the housing (71) has corresponding threaded holes, and the magnetic block (5) has corresponding snap-fit grooves; Each of the fixing screws (11) is threaded through the housing (71) and then engaged in the engagement groove.
10. The magnetic clamp according to claim 9, characterized in that, The cover (7) near the handle (2) also has a protruding post (72) provided on the cover (71), and the through hole (10) extends out of the protruding post (72); The elastic element is sleeved on the protruding post (72).