Magnetic spike anchoring support
By adopting a combination design of the base frame body, the nail positioner and the positioning ring in the magnetic suction nail anchor bracket, the problem of low positioning accuracy in the prior art is solved, and the accurate installation of the nail on the sleeper is achieved and the stability and safety of the track is improved.
Patent Information
- Application Number
- CN202411989514.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-18
AI Technical Summary
The positioning accuracy of the existing magnetic suction lane anchor bracket is not high, and it is impossible to accurately control the specific position of the lower end of the lane into the rail sleeper, which is prone to positioning errors.
A magnetic suction nail anchor bracket including a base frame, a nail positioner and a positioning ring is used to locate the upper end of the nail through the U-shaped positioning groove and magnet on the nail positioning device, and the lower end of the nail is positioned through the positioning ring to ensure the accurate positioning of the lower end of the nail in the vertical direction.
The positioning accuracy of the lane nails is improved, so that the lane nails can be installed on the sleepers accurately and stably, enhancing the stability and safety of the track.
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Figure CN119640632A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of railway construction, and in particular relates to a magnetic spike anchoring bracket. Background Art
[0002] The main function of railroad spikes is to firmly fix the rails on the sleepers to prevent the rails from shifting, moving or tilting when the train is running, ensuring that the rails always remain in the correct position, maintaining the geometric shape and dimensional accuracy of the rails, and providing a stable and safe running track for the train.
[0003] When a train runs on the rails, huge vertical and horizontal loads will be generated. As the connecting parts between the rails and the sleepers, the spikes can effectively transfer the train load to the sleepers, and then the sleepers will evenly distribute the load to the roadbed and the roadbed, avoiding the damage of the rails due to excessive local forces, and ensuring the overall stability and bearing capacity of the track structure. The spikes are installed on the sleepers at a certain spacing and method, and work together with other track components such as fasteners and pads to accurately maintain the gauge between the rails, so that the wheels of the train can run smoothly within the appropriate gauge range, prevent abnormal contact and wear between the wheels and the rails, and reduce the risk of accidents such as derailment.
[0004] The spikes are usually connected to the sleepers by anchoring, that is, holes for anchoring the spikes are drilled or reserved on the sleepers, the prepared anchoring agent is poured into the anchoring hole, and then the spikes are quickly inserted into the hole. Special tools are used to rotate and press the spikes down so that the spikes are fully anchored in the sulfur anchoring agent and the air and excess anchoring agent in the hole are discharged at the same time. During the anchoring process, the verticality, center deviation and anchoring depth of the spikes need to be accurately positioned. If the anchoring accuracy of the spikes is not enough, the connection between the rails and the sleepers will be unstable. When the train is running, the rails will be displaced and deformed due to the pressure and impact of the wheels, causing the track gauge, horizontality, height difference and other geometric dimensions to change beyond the allowable range, affecting the stability and comfort of the train. In addition, poor anchoring accuracy of the spikes may also make it impossible for the spikes to effectively fix the rails on the sleepers. With the frequent passage of trains, the rails and sleepers will gradually become loose, which may cause the entire track structure to loosen, seriously threatening the stability and safety of the track.
[0005] To solve the above problems, a Chinese patent with authorization announcement number CN203420189U discloses a magnetic anchoring frame, which includes two spike locators for absorbing threaded spikes at a certain distance. The positions of the two spike locators match the positions of the threaded spike fixing holes on the rail groove, and the spike locators are composed of a U-shaped groove and a magnet positioned on the U-shaped groove. The above magnetic anchoring frame can absorb and fix the spike in the U-shaped groove through the magnet, and the U-shaped groove mainly limits and guides the upper part of the spike to a certain extent, so that the spike maintains a relatively stable posture during the installation process and prevents it from excessively shifting in the horizontal direction. However, its positioning effect on the lower end of the spike is very limited, and it is impossible to accurately control the specific position of the lower end of the spike entering the sleeper, which is prone to certain positioning errors. Summary of the invention
[0006] The object of the present invention is to provide a magnetic road spike anchor bracket to solve the technical problem of low positioning accuracy of the magnetic road spike anchor bracket in the prior art.
[0007] In order to solve the above problems, the present invention provides a magnetic road spike anchor bracket adopting the following technical solution: A magnetic railroad spike anchoring bracket comprises a base frame and two railroad spike locators arranged at intervals, the base frame being used to be placed in a rail bearing groove of a sleeper, the railroad spike locator being relatively fixed to the base frame and having a U-shaped locating groove matched with the size of the upper end of the railroad spike, a magnet for adsorbing the railroad spike being embedded in the U-shaped locating groove, the distance between the two U-shaped locating grooves being equal to the spacing between two anchor holes on the rail bearing groove, a locating ring matched with the size of the lower end of the railroad spike for the railroad spike to pass through being correspondingly provided on the base frame below each railroad spike locator, the distance between the two locating rings being equal to the spacing between the two anchor holes on the rail bearing groove, and a support frame in an upright state being commonly connected between the two locating rings and the two railroad spike locators. The beneficial effects of the present invention are as follows: the magnetic spike anchor bracket of the present invention can not only position the upper end of the spike through the U-shaped positioning groove and the magnet on the spike positioner to ensure the position accuracy of the upper end of the spike on the horizontal plane, but also position the lower end of the spike through the positioning ring to ensure the position accuracy of the lower end of the spike in the horizontal direction, so that it can accurately align with the anchor hole on the sleeper, and realize the positioning of the lower end of the spike in the vertical direction. The spike positioner and the positioning ring cooperate with each other to simultaneously position and constrain the upper and lower ends of the spike, thereby improving the positioning accuracy of the spike and enabling the spike to be accurately and stably installed on the sleeper.
[0008] Furthermore, the road spike locator includes an integrally formed arc-shaped vertical plate and a limiting vertical plate connected to both ends of the arc-shaped vertical plate, the inner side surface of the limiting vertical plate is coplanar with the inner arc surface of the arc-shaped vertical plate, and an inwardly concave arc-shaped embedding groove is formed on the arc-shaped vertical plate by stamping, and the magnet is an arc-shaped magnet adapted to the arc-shaped embedding groove.
[0009] Beneficial effects: The arc-shaped magnet can better fit the shape of the road spike, increase the contact area between the arc-shaped subway and the road spike, and make the adsorption force more evenly distributed; the arc-shaped magnet is embedded in the arc-shaped locator, and the two form a whole, which makes the adsorption and positioning of the road spike more accurate.
[0010] Furthermore, the arc-shaped embedding groove is arranged at a middle height position of the arc-shaped vertical plate.
[0011] Furthermore, the bottom surface of the positioning ring is an inclined surface that fits with the bottom of the bearing rail groove, and the center hole of the positioning ring is coaxial with the anchor hole.
[0012] Furthermore, the base frame and the support frame are telescopic frames that can be retracted and unfolded in the spacing arrangement direction of the two road spike locators.
[0013] Beneficial effect: After the base frame and the support frame are retracted, the size of the entire magnetic spike anchor bracket becomes smaller, which saves more space and is convenient for storage and transportation during mass production.
[0014] Furthermore, the base frame body includes two first connecting rods and two second connecting rods, the two first connecting rods are arranged in parallel and spaced apart in the length direction of the sleeper, the two second connecting rods are vertically connected to the bottom of the two first connecting rods and are arranged in parallel and spaced apart in the width direction of the sleeper, and the first connecting rod is used to contact the bottom of the rail groove; the support frame includes two vertical rods and two support rods, the two support rods are respectively connected to the top and bottom ends of the two vertical rods, the two ends of the support rod located on the upper side are respectively connected to the two spike locators, and the two ends of the support rod located on the lower side are respectively connected to the two positioning rings; the side of the positioning ring facing away from the support rod is connected to the corresponding first connecting rod through a third connecting rod; the second connecting rod and the support rod are both telescopic rods.
[0015] Beneficial effects: The structure of the base frame and the support frame is simple, and it is easy to obtain materials and install.
[0016] Furthermore, the support rod includes a first support rod section, a sliding rod section and a second support rod section arranged coaxially, the outer diameter of the first support rod section is equal to the outer diameter of the second support rod section and is larger than the outer diameter of the sliding rod section, the sliding rod section is fixed to the second support rod section and slidably cooperates with the first support rod section, and a locking limit structure is provided between the first support rod section of at least one of the support rods and the sliding rod section of the support rod, the locking limit structure enables the sliding rod section to have a first locking position and a second locking position, when the sliding rod section is in the first locking position, the first support rod section and the second support rod section are in stop contact with each other; when the sliding rod section is in the second locking position, the distance between the two U-shaped positioning grooves is equal to the spacing between the two anchor holes on the support rail groove.
[0017] Beneficial effect: During use, the operator does not need to use additional measuring tools to measure the distance between the two road spike locators. The road spike can be directly positioned after the slide bar section is slid to the second locking position and locked. In addition, during the production and transportation process, the slide bar section is slid to the first locking position and locked to ensure that there is no relative sliding between the slide bar section and the first support bar section during the transportation process, thereby ensuring the stability of the transportation process.
[0018] Furthermore, the locking limit structure includes a first limit block, a second limit block and a locking rod. The first limit block and the second limit block are both fixed on the first support rod segment and arranged at intervals. The locking rod is T-shaped and includes a horizontal segment and a vertical segment. The vertical segment is vertically connected to the sliding rod segment and is slidably assembled with the first support rod segment. The first limit block and the second limit block are provided with coaxial through holes for the horizontal segment to pass through, and both ends of the horizontal segment are respectively provided with external threads.
[0019] Beneficial effects: simple structure, more convenient locking and unlocking.
[0020] Furthermore, the inner diameter of the positioning ring is larger than the inner diameter of the arc-shaped vertical plate, and the first support rod segment and the second support rod segment located on the lower side are both provided with avoidance openings for avoiding the positioning ring, and the first support rod segment and the second support rod segment located on the lower side have pressure contact surfaces at the avoidance openings for pressing on the side and top surfaces of the positioning ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a top view of Embodiment 1 of a magnetic spike anchoring bracket of the present invention; Figure 2 for Figure 1 AA section view; Figure 3 for Figure 1 BB cross-sectional view; Figure 4 It is a structural schematic diagram of a road spike locator; Figure 5 is a schematic diagram of a sleeper; Figure 6 It is a schematic diagram of Example 2 of a magnetic road spike anchoring bracket of the present invention.
[0022] Description of reference numerals: 1. chassis; 2. spike locator; 3. positioning ring; 4. sleeper; 5. rail bearing groove; 6. U-shaped positioning groove; 7. magnet; 9. first connecting rod; 10. second connecting rod; 11. third connecting rod; 12. vertical rod; 13. support rod; 14. avoidance; 15. support frame; 101, bottom frame; 102, first support rod section; 103, second support rod section; 104, slide rod section; 105, first limit block; 106, second limit block; 107, locking rod; 108, second connecting rod; 109, support frame. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.
[0024] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.
[0025] Embodiment 1 of a magnetic road spike anchoring bracket provided by the present invention: like Figure 1 As shown, the magnetic road spike anchoring bracket includes a base frame 1, two road spike positioners 2 arranged at intervals, two positioning rings 3 arranged at intervals, and a support frame 15 connecting the two road spike positioners 2 and the two positioning rings 3.
[0026] In this embodiment, for the convenience of description, Figure 5 As shown, the length direction of the sleeper 4 is defined as the left-right direction, and the width direction of the sleeper 4 is defined as the front-back direction.
[0027] Specifically, Figure 2 and Figure 3As shown, the chassis body 1 is made of round steel as a whole, including two first connecting rods 9 and two second connecting rods 10. The two first connecting rods 9 are arranged in parallel and spaced apart in the left-right direction, and the two second connecting rods 10 are vertically welded and connected to the bottom of the two first connecting rods 9 and are arranged in parallel and spaced apart in the front-back direction. The inner spacing of the two second connecting rods 10 is greater than the bottom width of the bearing rail groove 5 on the sleeper 4, and the outer spacing of the two first connecting rods 9 is equal to the bottom length of the bearing rail groove 5 on the sleeper 4. The two second connecting rods 10 are arranged obliquely, and the inclination direction and angle are the same as the inclination direction and angle of the bottom of the bearing rail groove 5. During installation, the chassis body 1 is placed on the bearing rail groove 5, the two second connecting rods 10 are close to the shoulder of the sleeper 4, and the two first connecting rods 9 are close to the inclined surfaces on both sides of the bottom surface of the bearing rail groove 5, so as to ensure the position of the threaded spikes on the sleeper 4.
[0028] like Figure 1 and Figure 2 As shown, two positioning rings 3 are arranged at intervals in the left-right direction, and the two positioning rings 3 are respectively connected to the first connecting rod 9 on the corresponding side through the third connecting rod 11, and the third connecting rod 11 is also round steel, and the two ends of the third connecting rod 11 are welded to the positioning ring 3 and the first connecting rod 9. The bottom surface of the positioning ring 3 is an inclined surface that fits the bottom of the bearing rail groove 5, but the center hole of the positioning ring 3 is coaxial with the anchor hole on the sleeper 4, and the axis extends in the up-down direction.
[0029] like Figure 2 As shown, the support frame 15 is located between the two positioning rings 3, in an upright position, and includes two vertical poles 12 and two support poles 13. The two vertical poles 12 are parallel to each other and arranged at intervals in the left-right direction. The two support poles 13 are welded to the top and bottom ends of the two vertical poles 12. The two ends of the support pole 13 located on the upper side are respectively connected to the two spike locators 2, and the two ends of the support pole 13 located on the lower side are respectively connected to the two positioning rings 3. Since the bottom of the rail bearing groove 5 has a certain slope, the support pole 13 located on the lower side is also inclined to match the above slope.
[0030] like Figure 3 and Figure 4 As shown, the road spike locator 2 includes an integrally formed arc-shaped vertical plate and a limiting vertical plate connected to the left and right ends of the arc-shaped vertical plate. The inner side surface of the limiting vertical plate is coplanar with the inner arc surface of the arc-shaped vertical plate, thereby forming a U-shaped positioning groove 6. The U-shaped positioning groove 6 is adapted to the upper end size of the road spike and is used to position the upper end of the road spike. An inwardly concave arc-shaped embedding groove is formed on the arc-shaped vertical plate by stamping, and an arc-shaped magnet 7 that can adsorb the road spike is embedded in the arc-shaped embedding groove. In this embodiment, the arc-shaped embedding groove is opened at the middle height position of the arc-shaped vertical plate. In other embodiments, a long strip magnet 7 can also be used. In this case, an embedding groove extending in the up and down direction is provided on the arc-shaped vertical plate, and the magnet 7 is embedded in a long strip shape.
[0031] The inner diameter of the positioning ring 3 is larger than the inner diameter of the curved vertical plate, which makes the vertical section of the outer side surface of the curved vertical plate not coplanar with the vertical section of the outer side surface of the positioning ring 3. In order to ensure that the support frame 15 can connect the two spike locators 2 and the positioning ring 3, avoidance openings 14 for avoiding the positioning ring 3 are respectively provided at both ends of the support rod 13 located below. The support rod 13 located below has a pressing surface at the avoidance opening 14 for pressing on the outer side surface and top surface of the positioning ring 3, and is connected to the positioning ring 3 by spot welding.
[0032] After the production is completed, the distance between the two U-shaped positioning grooves 6 is equal to the distance between the two anchor holes on the rail groove 5, and the distance between the two positioning rings 3 is equal to the distance between the two anchor holes on the rail groove 5. The two spikes are vertically passed through the spike positioner 2 and the positioning ring 3 respectively, and the magnet 7 attracts the spikes, and the boss on the spike supports the lower end of the U-shaped limit groove. Use a grouting spoon to evenly inject the anchoring agent into the anchor hole, and then vertically place the magnetic spike anchoring bracket equipped with two spikes of the present invention in the rail groove 5 of the sleeper 4, and the spike is vertically inserted into the hole from above the anchor hole to ensure the accuracy of the position of the spike.
[0033] The spike locator 2 and the positioning ring 3 cooperate with each other to simultaneously position and constrain the upper and lower ends of the spike, thereby improving the positioning accuracy of the spike, enabling the spike to be accurately and stably installed on the sleeper 4, and improving the stability and safety of the train during operation.
[0034] Embodiment 2 of a magnetic road spike anchoring bracket provided by the present invention: The main difference between it and Example 1 is: In Example 1, the sizes of the base frame and the support frame are fixed.
[0035] In this embodiment, if Figure 6 As shown, the bottom frame 101 and the support frame 109 are telescopic frames that can be retracted and unfolded in the spacing arrangement direction of the two road spike locators. Specifically, the second connecting rod 108 of the bottom frame 101 and the support rod of the support frame 109 are telescopic rods.
[0036] Among them, the support rod includes a coaxially arranged first support rod segment 102, a sliding rod segment 104 and a second support rod segment 103, the outer diameter of the first support rod segment 102 is equal to the outer diameter of the second support rod segment 103 and larger than the outer diameter of the sliding rod segment 104, the sliding rod segment 104 is fixed to the second support rod segment 103 and slidably cooperates with the first support rod segment 102, and a locking limit structure is provided between the first support rod segment 102 of one support rod and the sliding rod segment 104 of the support rod, the locking limit structure enables the sliding rod segment 104 to have a first locking position and a second locking position, when the sliding rod segment 104 is in the first locking position, the first support rod segment 102 and the opposite end of the second support rod segment 103 are stopped and contacted; when the sliding rod segment 104 is in the second locking position, the distance between the two U-shaped positioning grooves is equal to the spacing between the two anchor holes on the support rail groove.
[0037] In this embodiment, the locking and limiting structure includes a first limiting block 105, a second limiting block 106 and a locking rod 107. The first limiting block 105 and the second limiting block 106 are both fixed on the first support rod segment 102 and arranged at intervals. The locking rod 107 is T-shaped and includes a horizontal segment and a vertical segment. The vertical segment is vertically connected to the sliding rod segment 104 and slidably assembled with the first support rod segment 102. The first limiting block 105 and the second limiting block 106 are provided with coaxial through holes for the horizontal segment to pass through, and both ends of the horizontal segment are respectively provided with external threads. When the sliding rod segment 104 moves to the first locking position and the second locking position respectively, the sliding rod segment 104 can be locked by threading the nut with the horizontal segment.
[0038] Since the support frame 109 is an integral body, when one of the support rods is locked, the other support rod is also relatively locked. Therefore, a locking limit structure is only required to be set on the support rod located at the top, and there is no need to set a locking limit structure on the support rod located at the bottom, and only a telescopic rod can be used.
[0039] Similarly, the support frame 109 is connected with the two positioning rings to form a whole, and the positioning ring is connected with the bottom frame body 101 through the third connecting rod to form a whole, so when the support frame 109 is retracted and unfolded, the bottom frame body 101 is synchronously retracted and unfolded with the support frame 109; and when the support frame 109 is locked and fixed in size, the size of the bottom frame body 101 is also fixed, and at this time, there is no need to set a locking limit structure on the bottom frame body 101. That is, the locking limit structure can be set on one of the bottom frame body 101 and the support frame 109. Since the locking limit structure is set on the support frame 109 in this embodiment, the locking limit structure can also be set on the bottom frame body 101 in other embodiments.
[0040] In this embodiment, the base frame 101 and the support frame 109 can be retracted and unfolded, which is convenient for transportation and storage and saves space during mass production.
[0041] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A magnetic railroad spike anchoring bracket, comprising a base frame and two spaced railroad spike locators, the base frame being used to be placed in a rail bearing groove of a sleeper, the railroad spike locator being relatively fixed to the base frame and having a U-shaped locating groove on the railroad spike locator that matches the size of the upper end of the railroad spike, a magnet for adsorbing the railroad spike being embedded in the U-shaped locating groove, the distance between the two U-shaped locating grooves being equal to the distance between the two anchoring holes on the rail bearing groove, and characterized in that: A positioning ring adapted to the size of the lower end of the road spike for passing the road spike is provided on the base frame body below each road spike locator. The distance between the two positioning rings is equal to the distance between the two anchor holes on the rail groove. A support frame in an upright state is commonly connected between the two positioning rings and the two road spike locators.
2. The magnetic road spike anchor bracket according to claim 1, characterized in that: The road spike locator includes an integrally formed arc-shaped vertical plate and limiting vertical plates connected to both ends of the arc-shaped vertical plate, the inner side surface of the limiting vertical plate is coplanar with the inner arc surface of the arc-shaped vertical plate, an inwardly concave arc-shaped embedding groove is formed on the arc-shaped vertical plate by stamping, and the magnet is an arc-shaped magnet adapted to the arc-shaped embedding groove.
3. The magnetic road spike anchor bracket according to claim 2, characterized in that: The arc-shaped embedding groove is arranged at the middle height position of the arc-shaped vertical plate.
4. The magnetic road spike anchor bracket according to claim 1, characterized in that: The bottom surface of the positioning ring is an inclined surface that fits the bottom of the rail bearing groove, and the center hole of the positioning ring is coaxial with the anchor hole.
5. A magnetic road spike anchor bracket according to any one of claims 1 to 4, characterized in that: The base frame and the support frame are both telescopic frames that can be retracted and unfolded in the spacing arrangement direction of the two road spike locators.
6. The magnetic spike anchor bracket according to claim 5, characterized in that: The base frame body includes two first connecting rods and two second connecting rods, the two first connecting rods are arranged in parallel and spaced apart in the length direction of the sleeper, the two second connecting rods are vertically connected to the bottom of the two first connecting rods and are arranged in parallel and spaced apart in the width direction of the sleeper, and the first connecting rod is used to contact the bottom of the rail groove; the support frame includes two vertical rods and two support rods, the two support rods are respectively connected to the top and bottom ends of the two vertical rods, the two ends of the support rod located on the upper side are respectively connected to the two spike locators, and the two ends of the support rod located on the lower side are respectively connected to the two positioning rings; the side of the positioning ring facing away from the support rod is connected to the corresponding first connecting rod through the third connecting rod; the second connecting rod and the support rod are both telescopic rods.
7. The magnetic road spike anchor bracket according to claim 6, characterized in that: The support rod includes a first support rod section, a sliding rod section and a second support rod section which are coaxially arranged, the outer diameter of the first support rod section being equal to the outer diameter of the second support rod section and being larger than the outer diameter of the sliding rod section, the sliding rod section being fixed to the second support rod section and slidingly cooperating with the first support rod section, a locking limit structure being provided between the first support rod section of at least one of the support rods and the sliding rod section of the support rod, the locking limit structure enabling the sliding rod section to have a first locking position and a second locking position, when the sliding rod section is in the first locking position, the first support rod section and the second support rod section are in blocking contact with each other at opposite ends; when the sliding rod section is in the second locking position, the distance between the two U-shaped positioning grooves is equal to the spacing between the two anchor holes on the support rail groove.
8. The magnetic road spike anchor bracket according to claim 7, characterized in that: The locking limit structure includes a first limit block, a second limit block and a locking rod. The first limit block and the second limit block are both fixed on the first support rod segment and arranged at intervals. The locking rod is T-shaped and includes a horizontal segment and a vertical segment. The vertical segment is vertically connected to the sliding rod segment and is slidably assembled with the first support rod segment. The first limit block and the second limit block are provided with coaxial through holes for the horizontal segment to pass through, and both ends of the horizontal segment are respectively provided with external threads.
9. The magnetic road spike anchor bracket according to claim 7, characterized in that: The inner diameter of the positioning ring is larger than the inner diameter of the arc-shaped vertical plate. The first support rod segment and the second support rod segment located on the lower side are both provided with avoidance openings for avoiding the positioning ring. The first support rod segment and the second support rod segment located on the lower side have pressure contact surfaces at the avoidance openings for pressing on the side and top surfaces of the positioning ring.
Citation Information
Patent Citations
Magnetic type anchoring frame
CN203420189U