A fastener for subway tracks

Abstract

The present invention relates to the technical field of fasteners, and particularly relates to a fastener for a subway track, which includes a bolt body and a bolt cap threadedly sleeved around the bolt body; a receiving groove is formed around the middle of the upper surface of the bolt cap, a blocking member is placed at the bottom end inside the receiving groove, an adhesive is filled in the receiving groove above the blocking member, and a plurality of guiding channels are formed on one side of the inner wall of the receiving groove; the position of the blocking member in the bolt cap can be effectively adjusted by a transmission adjusting device provided at the bottom of the bolt body. When the subway track fittings between the bolt body and the bolt cap become loose and the distance between the upper part of the bolt cap and the bolt body increases, the adhesive in the receiving groove can enter into the plurality of guiding channels by means of the lifting action of the blocking member, so that the fastening property between the bolt body and the bolt cap can be further improved by the bonding action of the adhesive, effectively improving the stability and safety of the subway track.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, and particularly to a fastener for subway tracks. Background Art

[0002] Railway rails, also known as track rails, railway tracks, etc., are used in railway and subway construction. Fasteners are used to fasten and install various components of subway tracks. In the prior art, for example, a variable-diameter fastener for a railway track fastening component disclosed in Patent No. CN201711320826.6 includes a shaft. The first end of the shaft is configured to be placed in the underlying foundation, and the second end of the shaft is configured to engage with the fastening component. The above structure can implement variable-diameter applications.

[0003] However, the inventor found that for the fasteners in the prior art, when the subway track fittings between the fasteners become loose, it is difficult to further improve the fastening between the bolt body and the bolt cap, and there is a problem of low stability and safety of the subway track. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a fastener for subway tracks to solve the problem of difficulty in further improving the fastening between the bolt body and the bolt cap.

[0005] Based on the above purpose, the present invention provides a fastener for subway tracks, including: a bolt body and a bolt cap threadedly sleeved around the bolt body. A clamping groove formed between the bolt body and the bolt cap is used to accommodate the components of the subway track;

[0006] On the upper surface of the bolt cap, accommodation grooves are provided around the middle. At the bottom end inside the accommodation groove, a blocking member is placed. The accommodation groove above the blocking member is filled with an adhesive. On one side of the inner wall of the accommodation groove, a plurality of guiding channels are provided, and one end of the guiding channel penetrates through the bolt cap. At the bottom of the bolt body, a transmission adjustment device is provided, and the top of the transmission adjustment device penetrates through the bolt cap and is connected to the blocking member;

[0007] Among them, the adhesive is pushed by the blocking member into the plurality of guiding channels and smeared on the contact surface between the bolt body and the bolt cap.

[0008] Preferably, a positioning piece and a limiting piece are movably sleeved around the bolt body. The positioning piece and the limiting piece are arranged in parallel, and the positioning piece and the limiting piece are located above the bolt cap.

[0009] Preferably, a plug cover is fixedly inserted at the top end inside the accommodation groove.

[0010] Preferably, the upper surface of the blocking member is set as an inclined surface structure, and the axis line of the guiding channel is parallel to the upper surface of the blocking member.

[0011] Preferably, the transmission adjustment device further includes: a chassis, a lead screw is rotatably connected to the middle of the upper surface of the chassis through a bearing, a threaded groove is provided in the middle of the bottom end of the bolt body, and the periphery of the lead screw is threadedly connected to the threaded groove.

[0012] Preferably, the transmission adjustment device further includes: a threaded sleeve, the threaded sleeve is suspended at the four peripheral edges of the upper surface of the chassis, a limiting rod and a positioning rod are respectively threadedly inserted at the top end and the bottom end of the threaded sleeve, magnet blocks are embedded at the bottom end of the positioning rod and the top end of the limiting rod, the positioning rod is adsorbed and connected to the chassis through the magnet block, and the top end of the limiting rod passes through the bolt cap and is adsorbed and connected to the blocking member through the magnet block.

[0013] The beneficial effects of the present invention: The bolt cap sleeved outside the bolt body through the thread can tightly clamp the accessories of the subway track. At the same time, the transmission adjustment device provided at the bottom of the bolt body can effectively adjust the position of the blocking member in the bolt cap. When the subway track accessories between the bolt body and the bolt cap become loose and the distance between the upper part of the bolt cap and the bolt body is enlarged, the adhesive in the accommodating groove can enter into the plurality of guiding channels by means of the lifting action of the blocking member, so that the fastening property between the bolt body and the bolt cap can be further improved through the adhesive bonding action, effectively improving the stability and safety of the subway track. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic half-sectional structure view of the main view of the present invention;

[0016] Figure 2 It is a schematic half-sectional structure view of the bolt cap of the present invention;

[0017] Figure 3 is Figure 2 the enlarged structure view at A in

[0018] Figure 4 It is a schematic structure view of the chassis of the present invention;

[0019] Figure 5 It is a schematic main view structure of the present invention.

[0020] The markings in the figure are: 1, bolt body; 11, positioning piece; 12, limiting piece; 13, thread groove; 2, bolt cap; 21, accommodating groove; 22, plug cover; 23, blocking piece; 24, adhesive; 25, guiding channel; 3, chassis; 31, lead screw; 32, positioning rod; 33, thread sleeve; 34, limiting rod; 35, magnet block. Detailed implementation mode

[0021] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0022] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0023] Embodiment 1:

[0024] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a fastener for subway tracks includes: a bolt body 1 and a bolt cap 2 threadedly sleeved around the bolt body 1. The card slot formed between the bolt body 1 and the bolt cap 2 is used to accommodate the components of the subway track; a accommodating groove 21 is opened around the middle of the upper surface of the bolt cap 2. A plug cover 22 is fixedly inserted at the top end inside the accommodating groove 21. A blocking piece 23 is placed at the bottom end inside the accommodating groove 21. An adhesive 24 is filled in the accommodating groove 21 above the blocking piece 23. A plurality of guiding channels 25 are opened on one side of the inner wall of the accommodating groove 21, and one end of the guiding channel 25 penetrates through the bolt cap 2. A transmission adjustment device is arranged at the bottom of the bolt body 1, and the top of the transmission adjustment device penetrates through the bolt cap 2 and is connected to the blocking piece 23; the adhesive 24 is pushed by the blocking piece 23 into the plurality of guiding channels 25 and smeared on the contact surface between the bolt body 1 and the bolt cap 2.

[0025] Among them, the bolt cap 2 sleeved around the bolt body 1 through threads can tightly clamp the fittings of the subway track. At the same time, the transmission adjustment device provided at the bottom of the bolt body 1 can effectively adjust the position of the partition member 23 in the bolt cap 2. When the subway track fittings between the bolt body 1 and the bolt cap 2 become loose and the distance between the upper part of the bolt cap 2 and the bolt body 1 increases, the adhesive 24 in the accommodation groove 21 can enter into the plurality of guiding channels 25 by means of the lifting action of the partition member 23, so that the fastening between the bolt body 1 and the bolt cap 2 can be further improved by the bonding action of the adhesive 24, effectively enhancing the stability and safety of the subway track.

[0026] A positioning piece 11 and a limiting piece 12 are movably sleeved around the bolt body 1. The positioning piece 11 and the limiting piece 12 are arranged in parallel, and the positioning piece 11 and the limiting piece 12 are located above the bolt cap 2.

[0027] Among them, the positioning piece 11 and the limiting piece 12 provided between the outer periphery of the bolt body 1 and the bolt cap 2 can effectively improve the fitting degree with the subway track, reduce the frictional loss and extend the service life.

[0028] The upper surface of the partition member 23 is arranged as an inclined surface structure, and the central axis line of the guiding channel 25 is arranged in parallel with the upper surface of the partition member 23.

[0029] Among them, by arranging the partition member 23 as an inclined surface structure, the flow rate of the adhesive 24 entering into the plurality of guiding channels 25 can be further accelerated, effectively enhancing the fastening between the bolt body 1 and the bolt cap 2.

[0030] Embodiment 2:

[0031] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, a fastener for a subway track includes: a bolt body 1 and a bolt cap 2 sleeved around the bolt body 1 through threads. A clamping groove formed between the bolt body 1 and the bolt cap 2 is used for accommodating components of the subway track; a plurality of accommodation grooves 21 are respectively formed around the middle of the upper surface of the bolt cap 2. A partition member 23 is placed at the bottom end inside the accommodation groove 21. The accommodation groove 21 above the partition member 23 is filled with an adhesive 24. One side of the inner wall of the accommodation groove 21 is provided with a plurality of guiding channels 25, and one end of the guiding channel 25 penetrates through the bolt cap 2. A transmission adjustment device is arranged at the bottom of the bolt body 1.

[0032] The transmission adjustment device further includes: a chassis 3. A lead screw 31 is rotatably connected to the middle of the upper surface of the chassis 3 through a bearing. A threaded groove 13 is formed in the middle of the bottom end of the bolt body 1, and the periphery of the lead screw 31 is threadedly connected to the threaded groove 13. The transmission adjustment device further includes: a threaded sleeve 33. The threaded sleeve 33 is suspended at the four peripheral edges of the upper surface of the chassis 3. A limit rod 34 and a positioning rod 32 are respectively threadedly inserted into the top end and the bottom end of the threaded sleeve 33. Magnet blocks 35 are embedded at the bottom end of the positioning rod 32 and the top end of the limit rod 34. The positioning rod 32 is adsorbed and connected to the chassis 3 through the magnet block 35. The top end of the limit rod 34 passes through the bolt cap 2 and is adsorbed and connected to the blocking member 23 through the magnet block 35.

[0033] Among them, the lead screw 31 provided on the chassis 3 can adjust the position between the chassis 3 and the bolt body 1, which is convenient for users to adjust in real time according to the installation environment. At the same time, through the threaded sleeve 33 provided on the chassis 3, the positioning rod 32 and the limit rod 34 can effectively adjust the position of the blocking member 23, thereby facilitating the effect of the user's installation and fastening.

[0034] Working principle: When in use, the positioning piece 11 and the limiting piece 12 provided between the periphery of the bolt body 1 and the bolt cap 2 can effectively improve the fitting degree with the subway track, reduce the friction loss, and improve the service life. By setting the blocking member 23 in an inclined surface structure, the flow rate of the adhesive 24 entering the plurality of guiding channels 25 can be further accelerated, effectively improving the fastening between the bolt body 1 and the bolt cap 2. The lead screw 31 provided on the chassis 3 can adjust the position between the chassis 3 and the bolt body 1, which is convenient for users to adjust in real time according to the installation environment. At the same time, through the threaded sleeve 33 provided on the chassis 3, the positioning rod 32 and the limit rod 34 can effectively adjust the position of the blocking member 23, thereby facilitating the effect of the user's installation and fastening.

[0035] Those of ordinary skill in the art should understand that: The discussion of any embodiment above is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; Under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0036] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fastener for a subway track, comprising: A bolt body (1) and a bolt cap (2) threadedly sleeved around the bolt body (1). A clamping groove formed between the bolt body (1) and the bolt cap (2) is used to accommodate components of a subway track; It is characterized in that accommodating grooves (21) are evenly formed around the middle of the upper surface of the bolt cap (2). A blocking member (23) is placed at the bottom end inside the accommodating groove (21). An adhesive (24) is filled in the accommodating groove (21) above the blocking member (23). A plurality of guiding channels (25) are formed on one side of the inner wall of the accommodating groove (21), and one end of the guiding channel (25) penetrates through the bolt cap (2). A transmission and adjustment device is arranged at the bottom of the bolt body (1), and the top of the transmission and adjustment device penetrates through the bolt cap (2) and is connected to the blocking member (23); Among them, the adhesive (24) is pushed into the plurality of guiding channels (25) through the blocking member (23) and is applied to the contact surface between the bolt body (1) and the bolt cap (2); The transmission and adjustment device further includes: A chassis (3). A lead screw (31) is rotatably connected to the middle of the upper surface of the chassis (3) through a bearing. A threaded groove (13) is formed in the middle of the bottom end of the bolt body (1), and the periphery of the lead screw (31) is threadedly connected to the threaded groove (13); The transmission and adjustment device further includes: A threaded sleeve (33). The threaded sleeve (33) is suspended at the edge of the upper surface of the chassis (3). A limiting rod (34) and a positioning rod (32) are respectively threadedly inserted into the top end and the bottom end of the threaded sleeve (33). Magnet blocks (35) are embedded at the bottom end of the positioning rod (32) and the top end of the limiting rod (34). The positioning rod (32) is adsorbed and connected to the chassis (3) through the magnet block (35), and the top end of the limiting rod (34) penetrates through the bolt cap (2) and is adsorbed and connected to the blocking member (23) through the magnet block (35).

2. The fastener for a subway track according to claim 1, characterized in that, A positioning piece (11) and a limiting piece (12) are movably sleeved around the bolt body (1). The positioning piece (11) and the limiting piece (12) are arranged in parallel, and the positioning piece (11) and the limiting piece (12) are located above the bolt cap (2).

3. The fastener for a subway track according to claim 1, wherein A plug cover (22) is fixedly inserted into the top end inside the accommodating groove (21).

4. A fastener for a subway track according to claim 1, wherein, The upper surface of the blocking member (23) is arranged in an inclined plane structure, and the axis of the guiding channel (25) is arranged in parallel with the upper surface of the blocking member (23).

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