Hinge-type connected anti-skid fatigue-resistant positioning stand column

Abstract

The utility model belongs to the technical field of contact networks, and particularly relates to a hinge-type connected anti-skid fatigue-resistant positioning stand column which comprises an upper hoop, a lower hoop hinged to the upper hoop and a positioning column fixed to the lower hoop, the upper hoop comprises a first ring body, a first hinge portion and a first limiting portion, and the lower hoop comprises a second ring body, a second hinge portion and a second limiting portion. The lower hoop comprises a second ring body, second hinge parts and second limiting parts connected between every two adjacent second hinge parts, and each second limiting part is provided with a notch allowing the corresponding first limiting part to be embedded and limiting the rotation amplitude of the first limiting part; the stress state in the matching process of the positioning stand column and the positioning pipe is improved, the fatigue performance is improved, the service time of the positioning stand column and the positioning pipe is prolonged, the hinge type connecting structure enables the lower hoop to be thicker and more reliable, damage and breakage of the connecting portion caused by oblique shear stress are avoided, and an attaching contact plane is designed on the enclasping face of the lower hoop and the positioning pipe, so that the service life of the lower hoop is prolonged. The clamping force on the positioning pipe in the holding state is improved, the positioning pipe is prevented from sliding, and the overall reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of contact wire technology, specifically relating to a hinged, anti-slip, fatigue-resistant positioning column. Background Technology

[0002] The positioning column is a component of the simplified positioning device for the overhead contact system of high-speed railways. Figure 1 This is a structural diagram of a positioning column in the prior art. When a train passes, the positioning column will have vertical and horizontal displacement, which will cause oblique shear stress at the connection. In the prior art, the thickness of the connection between the upper and lower clamps is small. Under long-term service, frequent vibration will easily cause fatigue damage to the connection, and there is even a risk of breakage. Furthermore, the upper and lower clamps do not have a limiting structure on their hinge side and are only fixed by bolts. When the bolts loosen, the upper and lower clamps will directly detach from the pipe and fall off, causing contact wire failure. Utility Model Content

[0003] The technical problem to be solved by this utility model is as follows: In order to solve the problem that the thickness of the connection between the upper and lower clamps in the prior art is small, and under long-term service, frequent vibration will easily cause fatigue damage to the connection part, and even the risk of breakage. Furthermore, the upper and lower clamps do not have a limiting structure on their hinge side and are only fixed by bolts. When the bolts loosen, the upper and lower clamps will directly detach from the pipe and fall off, causing contact network failure. The present invention provides a hinge-type anti-slip and fatigue-resistant positioning column.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a hinged anti-slip and fatigue-resistant positioning column, including an upper clamp, a lower clamp hinged to the upper clamp, and a positioning column fixed to the lower clamp. The upper clamp and the lower clamp together form a positioning cavity for the positioning tube to be inserted.

[0005] The upper clamp includes a first ring body, a first hinge portion formed at one end of the first ring body, and a first limiting portion for connecting the first ring body and the first hinge portion.

[0006] The lower clamp includes a second ring body, a second hinge portion formed at one end of the second ring body to cooperate with the first hinge portion, and a second limiting portion connected between two adjacent second hinge portions. The second limiting portion has a slot for the first limiting portion to be inserted and to limit its rotation range.

[0007] Furthermore, both the upper and lower clamps have anti-slip surfaces on their adjacent sides, and the anti-slip surfaces on the upper and lower clamps are symmetrically arranged.

[0008] Furthermore, the second hinge portion has a plug groove, and the first hinge portion has a plug section that engages with the plug groove.

[0009] Furthermore, the upper clamp also includes a first fixing part located at its other end, and the lower clamp also includes a second fixing part located at its other end, the first fixing part and the second fixing part being fixed together by bolts.

[0010] Furthermore, the second fixing part has an anti-rotation groove formed on it to limit the rotation of the nut.

[0011] Furthermore, the head of the plug segment has a tapered structure.

[0012] Furthermore, there are two of each of the first and second hinge parts, and they correspond one-to-one. The insertion segment of each first hinge part is inserted into the insertion slot of its corresponding second hinge part.

[0013] Furthermore, the tilt angle β of the anti-slip surface is 45°±1°.

[0014] Furthermore, the opening angle α of the slot is 17°±1°.

[0015] Furthermore, the upper and lower clamps each have reinforcing ribs protruding on their opposite sides.

[0016] The beneficial effects of this utility model are: This utility model improves the stress state during the cooperation between the positioning column and the positioning tube, improves its fatigue performance and service life, and its hinge-type connection structure makes the lower clamp thicker and more reliable, avoiding damage and breakage of the connection part due to oblique shear stress. In addition, the clamping surface with the positioning tube is designed to fit and contact the positioning tube, which improves the clamping force on the positioning tube in the clamping state, prevents the positioning tube from sliding, and improves the overall reliability.

[0017] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a structural diagram of existing technology;

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is a first-view structural schematic diagram of the present invention;

[0022] Figure 4This is a structural schematic diagram of the present invention from a second perspective;

[0023] Figure 5 This is a schematic diagram of the structure of the lower clamp of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the upper clamp of this utility model;

[0025] In the picture:

[0026] 1. Upper clamp; 101. First ring body; 102. First hinge part; 1021. Insertion section; 103. First limiting part; 104. First fixing part;

[0027] 2. Lower clamp; 201. Second ring body; 202. Second hinge part; 2021. Insertion groove; 203. Second limiting part; 2031. Groove; 204. Second fixing part; 2041. Anti-rotation groove;

[0028] 3. Positioning post;

[0029] 4. Anti-slip surface;

[0030] 5. Reinforcing ribs. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0032] like Figures 2-6 As shown, a hinged anti-slip and fatigue-resistant positioning column includes an upper clamp 1, a lower clamp 2 hinged to the upper clamp 1, and a positioning column 3 fixed to the lower clamp 2. The upper clamp 1 and the lower clamp 2 form a positioning cavity for the positioning tube to be inserted. The upper clamp 1 and the lower clamp 2 hold the positioning tube tightly to prevent it from sliding.

[0033] The upper clamp 1 includes a first ring body 101, a first hinge portion 102 formed at one end of the first ring body 101, and a first limiting portion 103 for connecting the first ring body 101 and the first hinge portion 102.

[0034] The lower clamp 2 includes a second ring body 201, a second hinge portion 202 formed at one end of the second ring body 201 to cooperate with the first hinge portion 102, and a second limiting portion 203 connected between two adjacent second hinge portions 202. The second limiting portion 203 has a slot 2031 for the first limiting portion 103 to be inserted and its rotation range to be limited. The first hinge portion 102 and the second hinge portion 202 cooperate to form a hinge structure. The second limiting portion 203 connects two adjacent second hinge portions 202, which thickens the connection part between the lower clamp 2 and the upper clamp 1. The force on the upper clamp 1 will also be applied to the lower clamp 2 through the hinge structure, which improves the fatigue resistance and reliability of the connection part. At the same time, the slot 2031 of the second limiting portion 203 cooperates with the first limiting portion 103 to limit the rotation range of the upper clamp 1, so that the upper clamp 1 and the lower clamp 2 always clamp the positioning tube between them and will not detach from the positioning tube, thereby reducing the probability of accidents and improving overall safety.

[0035] In some examples, the positioning column may experience slight displacement under stress, and the upper clamp 1 and lower clamp 2 may have processing errors, resulting in the intermediate clamping state usually not being subjected to surface contact stress, but rather line contact stress. Long-term irregular stress can lead to the risk of breakage. Therefore, in this embodiment, the upper clamp 1 and lower clamp 2 are both formed with anti-slip surfaces 4 on their adjacent sides, and the anti-slip surfaces 4 on the upper clamp 1 and lower clamp 2 are symmetrically arranged. The number of anti-slip surfaces 4 on the upper clamp 1 and lower clamp 2 can be, but is not limited to, two or three, etc. Without affecting the quality of the positioning tube, the upper clamp 1 and lower clamp 2 increase the contact area with the positioning tube through the anti-slip surfaces 4 when clamped, thereby increasing the clamping force on the positioning tube, preventing the positioning tube from sliding, and improving the overall reliability and safety.

[0036] In some examples, the second hinge portion 202 has a insertion groove 2021, and the first hinge portion 102 has an insertion segment 1021 that engages with the insertion groove 2021. By inserting the insertion segment 1021 into the insertion groove 2021, the first hinge portion 102 and the second hinge portion 202 can be initially positioned to facilitate the subsequent insertion of the pin.

[0037] In some examples, the upper clamp 1 further includes a first fixing part 104 located at its other end, and the lower clamp 2 further includes a second fixing part 204 located at its other end. The first hinge part 102 and the second hinge part 202 are rotatably engaged. The first fixing part 104 and the second fixing part 204 are fixed by bolts, thereby clamping the positioning tube. The number of bolts may be, but is not limited to, one, two, or three.

[0038] In some examples, the second fixing part 204 has an anti-rotation groove 2041 for limiting the rotation of the nut. The anti-rotation groove 2041 has an opening on one side for the nut to enter and has an irregular shape, which can limit the rotation of the nut, thereby preventing the nut from separating from the bolt and improving the reliability of the overall structure.

[0039] In some examples, the head of the plug segment 1021 is tapered, and the plug groove 2021 is also tapered, which can provide guidance for the plugging and mating of the two.

[0040] In some examples, there are two of each of the first hinge portion 102 and the second hinge portion 202, and they correspond one-to-one. The first hinge portion 102 and the second hinge portion 202 are staggered, and the insertion segment 1021 of each first hinge portion 102 is inserted into the insertion slot 2021 of its corresponding second hinge portion 202.

[0041] In some examples, the inclination angle β of the anti-slip surface 4 is 45°±1°, and there are two anti-slip surfaces 4 on both the upper clamp 1 and the lower clamp 2. The four anti-slip surfaces are arranged symmetrically at a 45° diagonal, with a single-sided thickness of 0.25mm.

[0042] In some examples, the opening angle α of the slot 2031 is 17°±1°, that is, the maximum opening angle of the upper clamp 1 and the lower clamp 2 is 17°, 15° upward and 2° downward. This ensures that the upper clamp 1 and the lower clamp 2 will not fall off the pipe even if the bolts on the fixing part are loose and fall off, without affecting the installation of the positioning tube.

[0043] In some examples, the upper clamp 1 and the lower clamp 2 have reinforcing ribs 5 protruding on opposite sides, and the reinforcing ribs 5 on the upper clamp 1 are distributed on both sides of the edge, and the reinforcing ribs 5 on the lower clamp 2 are also distributed on both sides of the edge.

[0044] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A hinged, anti-slip, fatigue-resistant positioning column, characterized in that: It includes an upper clamp (1), a lower clamp (2) hinged to the upper clamp (1), and a positioning post (3) fixed to the lower clamp (2). The upper clamp (1) and the lower clamp (2) together form a positioning cavity for the positioning tube to be inserted. The upper clamp (1) includes a first ring body (101), a first hinge portion (102) formed at one end of the first ring body (101), and a first limiting portion (103) for connecting the first ring body (101) and the first hinge portion (102); The lower clamp (2) includes a second ring body (201), a second hinge portion (202) formed at one end of the second ring body (201) to cooperate with the first hinge portion (102), and a second limiting portion (203) connected between two adjacent second hinge portions (202). The second limiting portion (203) has a slot (2031) for the first limiting portion (103) to be inserted and to limit its rotation range.

2. The hinged, anti-slip, fatigue-resistant positioning column according to claim 1, characterized in that: The upper clamp (1) and the lower clamp (2) have anti-slip surfaces (4) on their adjacent sides, and the anti-slip surfaces (4) on the upper clamp (1) and the lower clamp (2) are symmetrically arranged.

3. The hinged, anti-slip, fatigue-resistant positioning column according to claim 1, characterized in that: The second hinge portion (202) has a plug groove (2021), and the first hinge portion (102) has a plug section (1021) that is plugged into the plug groove (2021).

4. The hinged, anti-slip, fatigue-resistant positioning column according to claim 1, characterized in that: The upper clamp (1) also includes a first fixing part (104) located at its other end, and the lower clamp (2) also includes a second fixing part (204) located at its other end. The first fixing part (104) and the second fixing part (204) are fixed by bolts.

5. The hinged, anti-slip, fatigue-resistant positioning column according to claim 4, characterized in that: The second fixing part (204) has an anti-rotation groove (2041) for limiting the rotation of the nut.

6. The hinged, anti-slip, fatigue-resistant positioning column according to claim 3, characterized in that: The head of the plug segment (1021) has a conical structure.

7. The hinged, anti-slip, fatigue-resistant positioning column according to claim 3, characterized in that: There are two of each of the first hinge part (102) and the second hinge part (202), and they correspond one to one. The insertion segment (1021) of each first hinge part (102) is inserted into the insertion slot (2021) of its corresponding second hinge part (202).

8. The hinged, anti-slip, fatigue-resistant positioning column according to claim 2, characterized in that: The tilt angle β of the anti-slip surface (4) is 45°±1°.

9. The hinged, anti-slip, fatigue-resistant positioning column according to claim 1, characterized in that: The opening angle α of the slot (2031) is 17°±1°.

10. A hinged, anti-slip, fatigue-resistant positioning column according to claim 1, characterized in that: The upper clamp (1) and the lower clamp (2) both have reinforcing ribs (5) protruding on opposite sides.

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