Cable placement equipment for rail transit

Abstract

The present invention relates to the technical field of rail transit construction equipment, and discloses a cable placement device for rail transit, including an elastic friction torsion mechanism and a corner ball limiting mechanism, wherein a spherical shell fixedly placed on one side of an upper friction plate, a spherical body placed inside the spherical shell and capable of rotating, and a threading hole arranged at the center of the spherical body and capable of limiting the position of a cable are arranged inside the spherical shell. The cable placement device for rail transit enables a component for clamping a cable to perform a circular motion around a column, thereby improving the application range of the device in the clamping orientation. At the same time, the component for clamping a cable can itself undergo a certain three-dimensional angle change, thereby improving the application range of the device in the clamping angle, and further improving the comprehensive application range of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit construction equipment, in particular to a cable placement device for rail transit. Background Art

[0002] When rail transit is working, cable racks are needed. Cable racks are generally used to install cables in cable trenches. They are usually assembled by welding or fasteners of angle iron profiles. The cable racks in the prior art cannot be disassembled or are inconvenient to disassemble. Moreover, the distance between the racks for installing cables cannot be adjusted. In addition, there is also the problem that the placed cables are easy to slip off the racks, thereby damaging the cables or causing personal injuries to the workers.

[0003] For example, the Chinese patent with the publication number of "CN209344730U" discloses "a cable placement rack", whose main structure includes a base, a support column, and a support rod. The support columns are provided in two, and the support columns are fixedly provided on the base. A vertical slide groove is formed between the support columns, and the support rod is installed in the slide groove. A card slot is provided at equal intervals from top to bottom on one side of the support column, and a card block that fits the card slot is provided at one end of the support rod, and the card block is installed in the card slot; a sleeve is provided at one end of the support rod near the card block, and the support rod is fixed to the support column through the sleeve, and a cable placement groove is provided at the other end of the support rod, and a C-shaped fastener is provided at the cable placement groove, and the C-shaped fastener is fixed to the support rod by bolts. The cable placement rack is connected by a combination of a card block and a card slot, and combined with the sleeve on the support rod, the support rod is firmly fixed on the support column to prevent the support rod from sliding up and down after the cable is installed. The top of the support column is connected together by a connecting block to prevent the two support columns from deviating from each other during use, causing the support rod to loosen and fall.

[0004] However, when the above-mentioned cable placement rack is actually used, since the C-shaped fastener is fixed relative to the support column and the support rod, the fixed angle of the C-shaped fastener to the cable will form a fixed angle relationship, and during the actual installation process of the cable, the clamping angle of the cable when using the placement rack will often change. Therefore, the application range of the equipment for the cable in terms of installation angle is relatively narrow. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a cable placement device for rail transit, so that the components used to clamp the cable can make circular motion around the column, thereby improving the application range of the device in the clamping orientation. At the same time, the components used to clamp the cable can themselves undergo certain three-dimensional angle changes, thereby improving the application range of the device in the clamping angle, and further improving the comprehensive application range of the device, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable placement device for rail transit, comprising a supporting base with a column installed on the upper end face and a No. 1 fixed plate fixedly installed on the top of the column, and also comprising an elastic friction torsion mechanism, in which a vertical hollow shell fixedly installed on the top of the No. 1 fixed plate and having a hollow structure inside is arranged, an upper friction plate placed on the top of the vertical hollow shell and capable of rotating, and a spiral spring placed inside the vertical hollow shell and capable of controlling the torque strength required for the upper friction plate when rotating; and a corner ball limiting mechanism, in which a spherical shell fixedly installed on one side of the upper friction plate, a sphere placed inside the spherical shell and capable of rotating, and a threading hole arranged at the center of the sphere and capable of limiting the position of the cable are arranged.

[0007] Preferably, the elastic friction torsion mechanism comprises a vertical hollow shell, the bottom of the vertical hollow shell is provided with a second fixing plate which is an integral structure with the vertical hollow shell and fixedly mounted on the top of the first fixing plate, the vertical hollow shell is provided with a vertical hollow structure inside, the top of the vertical hollow shell is provided with a lower friction plate structure which is an integral structure with the vertical hollow shell, the center of the lower friction plate structure is provided with a rod body through hole connected to the center of the top end of the vertical hollow structure, the vertical hollow shell is provided with an inner movable plate which can move axially along the vertical hollow structure inside the vertical hollow structure, the center of the upper end surface of the inner movable plate is provided with a rod body mounting groove, the inside of the rod body mounting groove is provided with a longitudinal telescopic rod which passes through the rod body through hole through a bearing, the longitudinal telescopic rod is provided with a coil spring on the periphery of the rod body located inside the vertical hollow structure, the top of the longitudinal telescopic rod is fixedly installed with an upper friction plate, and the center of the upper end surface of the upper friction plate is provided with a vertical mounting column which is an integral structure with the vertical hollow structure.

[0008] Preferably, the initial length of the coil spring is greater than the depth of the vertical hollow structure.

[0009] Preferably, when the lower surface of the upper friction plate contacts the upper surface of the lower friction plate structure, there is a gap between the bottom of the inner movable plate and the bottom end of the vertical hollow structure.

[0010] Preferably, the corner ball limiting mechanism includes a fixing sleeve fixedly mounted on the periphery of a vertical mounting column, a transverse support rod fixedly mounted on one side of the fixing sleeve, a spherical shell fixedly mounted on one end of the transverse support rod, a spherical cavity with open ends is arranged inside the spherical shell, a rotatable sphere is placed inside the spherical cavity of the spherical shell, the spherical shell is filled with an inner brake sleeve in the middle area located on the outer circumference of the sphere, and a threading hole with open ends is arranged in the center of the sphere.

[0011] Preferably, the inner brake sleeve generates friction force on the outer circumferential surface of the sphere.

[0012] Preferably, the sphere is provided with rounded corner structures at two ports located at the threading hole.

[0013] Compared with the prior art, the present invention provides a cable placement device for rail transit, which has the following beneficial effects:

[0014] The components for clamping the cable can make circular motion around the column, thereby improving the application range of the equipment in the clamping orientation. At the same time, the components for clamping the cable can themselves undergo certain three-dimensional angle changes, thereby improving the application range of the equipment in the clamping angle, and further improving the comprehensive application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention;

[0016] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0017] Figure 3 is a three-dimensional diagram of the elastic friction torsion mechanism of the present invention;

[0018] Figure 4 is a three-dimensional cross-sectional view of the elastic friction torsion mechanism of the present invention;

[0019] Figure 5 It is a three-dimensional cross-sectional view of the corner ball type limiting mechanism in the present invention in the longitudinal direction;

[0020] Figure 6 It is a three-dimensional cross-sectional view of the corner ball limiting mechanism in the present invention in the horizontal direction.

[0021] Among them: 1. Support base; 2. Column; 3. No. 1 fixed plate; 4. Elastic friction torsion mechanism; 41. Vertical hollow shell; 42. No. 2 fixed plate; 43. Lower friction plate structure; 44. Vertical hollow structure; 45. Rod body perforation; 46. Inner movable plate; 47. Rod body mounting groove; 48. Longitudinal telescopic rod; 49. Coil spring; 410. Upper friction plate; 411. Vertical mounting column; 5. Corner ball limiting mechanism; 51. Fixed sleeve; 52. Horizontal support rod; 53. Spherical shell; 54. Spherical cavity; 55. Sphere; 56. Threading hole; 57. Inner brake sleeve; 58. Rounded corner structure. DETAILED DESCRIPTION

[0022] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 and Figure 2 A cable placement device for rail transit includes a support base 1 with a column 2 installed on the upper end surface and a No. 1 fixing plate 3 fixedly installed on the top of the column 2. When working, the support base 1 is fixedly installed on the base surface.

[0024] To increase the range of applications of the device in the clamping position, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up an elastic friction torsion mechanism 4, which is provided with a vertical hollow shell 41 fixedly installed on the top of the No. 1 fixed plate 3 and having a hollow structure inside, an upper friction plate 410 placed on the top of the vertical hollow shell 41 and capable of rotating, and a spiral spring 49 placed inside the vertical hollow shell 41 and capable of controlling the torque strength required for the upper friction plate 410 when rotating. When it is necessary to change the clamping orientation, the upper friction plate 410 is rotated. When the rotation strength is greater than the friction between the upper friction plate 410 and the lower friction plate structure 43, the ball 55 will rotate around the column 2, thereby changing the clamping orientation of the cable, thereby increasing the application range of the device in the clamping orientation. After the orientation adjustment is completed, the friction between the upper friction plate 410 and the lower friction plate structure 43 can ensure the stable operation of the equipment.

[0025] For the specific structure of the elastic friction type torsion mechanism 4, please refer to Figure 3 and Figure 4, comprising a vertical hollow shell 41, the bottom of the vertical hollow shell 41 is provided with a second fixing plate 42 which is an integral structure with the vertical hollow shell 41 and fixedly mounted on the top of the first fixing plate 3, the interior of the vertical hollow shell 41 is provided with a vertical hollow structure 44, the top of the vertical hollow shell 41 is provided with a lower friction plate structure 43 which is an integral structure with the vertical hollow shell 41, the center of the lower friction plate structure 43 is provided with a rod body through hole 45 which is connected to the center of the top end of the vertical hollow structure 44, the vertical hollow shell 41 is provided with an inner movable plate 46 which can move axially along the vertical hollow structure 44, the center of the upper end surface of the inner movable plate 46 is provided with a rod body mounting groove 47, the interior of the rod body mounting groove 47 is passed through the shaft A longitudinal telescopic rod 48 penetrating a rod body through-hole 45 is installed in the bearing, and a coil spring 49 is placed on the outer periphery of the rod body inside the vertical hollow structure 44 of the longitudinal telescopic rod 48. In order to provide the elastic pressure required for friction, it is necessary to make the initial length of the coil spring 49 greater than the depth of the vertical hollow structure 44. An upper friction plate 410 is fixedly installed on the top of the longitudinal telescopic rod 48. In order to have a sufficient movement stroke, it is necessary to make a gap between the bottom of the inner movable plate 46 and the bottom end of the vertical hollow structure 44 when the lower surface of the upper friction plate 410 contacts the upper surface of the lower friction plate structure 43. A vertical mounting column 411 with an integral structure therewith is arranged at the center of the upper end surface of the upper friction plate 410.

[0026] To improve the comprehensive application range of the equipment, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , it is necessary to set up an angle ball limiting mechanism 5, which is provided with a spherical shell 53 fixedly placed on one side of the upper friction plate 410, a sphere 55 placed inside the spherical shell 53 and capable of rotation, and a threading hole 56 arranged at the center of the sphere 55 and capable of limiting the position of the cable. The cable is passed through the threading hole 56. When the threading angle needs to be adjusted, the sphere 55 is rotated to adapt to the current demand. Since the sphere 55 has a multi-angle rotation function, the comprehensive application range of the equipment is improved, and the inner brake sleeve 57 can ensure that the sphere 55 maintains a predetermined angle during operation.

[0027] For the specific structure of the corner ball limiting mechanism 5, please refer to Figure 5 and Figure 6, including a fixing sleeve 51 fixedly installed on the periphery of a vertical mounting column 411, a transverse support rod 52 fixedly installed on one side of the fixing sleeve 51, a spherical shell 53 fixedly installed on one end of the transverse support rod 52, a spherical cavity 54 with both ends being open is arranged inside the spherical shell 53, a rotatable ball 55 is placed inside the spherical cavity 54 of the spherical shell 53, the spherical shell 53 is filled with an inner brake sleeve 57 in the middle area of ​​the outer circumference of the ball 55, in order to have a certain damping effect, it is necessary to make the inner brake sleeve 57 form a friction force on the outer circumference of the ball 55, a threading hole 56 with both ends being open is arranged in the center of the ball 55, in order to reduce the degree of damage of the port to the cable, it is necessary to make the ball 55 have a chamfered structure 58 at the two ports located at the threading hole 56.

[0028] When in use, the support base 1 is fixedly installed on the base surface. When the clamping position needs to be changed, the upper friction plate 410 is rotated. When the rotation intensity is greater than the friction between the upper friction plate 410 and the lower friction plate structure 43, the ball 55 will rotate around the column 2, thereby changing the clamping position of the cable. When the threading angle needs to be adjusted, the ball 55 is rotated to adapt to the current demand. Since the ball 55 has a multi-angle rotation function, the comprehensive application range of the equipment is improved, and then the cable is passed through the threading hole 56.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable placement device for rail transit, comprising a support base (1) with a column (2) mounted on the upper end surface and a first fixing plate (3) fixedly mounted on the top of the column (2), characterized in that: Also includes, An elastic friction torsion mechanism (4) is provided with a vertical hollow housing (41) fixedly mounted on the top of the first fixing plate (3) and having a hollow structure inside, an upper friction plate (410) placed on the top of the vertical hollow housing (41) and capable of rotating, and a coil spring (49) placed inside the vertical hollow housing (41) and capable of controlling the torque strength required for the upper friction plate (410) when rotating; and a corner ball limiting mechanism (5), which is provided with a spherical shell (53) fixedly placed on one side of the upper friction plate (410), a spherical body (55) placed inside the spherical shell (53) and capable of rotating, and a threading hole (56) provided at the center of the spherical body (55) and capable of limiting the position of the cable; The corner ball limiting mechanism (5) comprises a fixing sleeve (51) fixedly mounted on the periphery of a vertical mounting column (411), a transverse support rod (52) fixedly mounted on one side of the fixing sleeve (51), a spherical shell (53) fixedly mounted on one end of the transverse support rod (52), a spherical cavity (54) with both ends being open is arranged inside the spherical shell (53), a rotatable sphere (55) is arranged inside the spherical cavity (54) of the spherical shell (53), an inner braking sleeve (57) is filled in the middle area of ​​the outer circumference of the sphere (55), and a threading hole (56) with both ends being open is arranged at the center of the sphere (55).

2. A cable placement device for rail transit according to claim 1, characterized in that: The elastic friction torsion mechanism (4) comprises a vertical hollow shell (41), the bottom of the vertical hollow shell (41) is provided with a second fixing plate (42) which is integrally structured with the vertical hollow shell (41) and fixedly mounted on the top of the first fixing plate (3), the interior of the vertical hollow shell (41) is provided with a vertical hollow structure (44), the top of the vertical hollow shell (41) is provided with a lower friction plate structure (43) which is integrally structured with the vertical hollow shell (41), the center of the lower friction plate structure (43) is provided with a rod body through hole (45) which is connected to the center of the top end of the vertical hollow structure (44), and the vertical hollow shell (41) is located at the vertical hollow structure (44). An inner movable plate (46) capable of axially moving along the vertical hollow structure (44) is arranged inside the inner movable plate (46); a rod body mounting groove (47) is arranged at the center of the upper end surface of the inner movable plate (46); a longitudinal telescopic rod (48) penetrating the rod body through hole (45) is installed inside the rod body mounting groove (47) via a bearing; a coil spring (49) is sleeved on the outer periphery of the rod body of the longitudinal telescopic rod (48) located inside the vertical hollow structure (44); an upper friction plate (410) is fixedly installed at the top end of the longitudinal telescopic rod (48); and a vertical mounting column (411) integrally formed with the upper friction plate (410) is arranged at the center of the upper end surface of the upper friction plate (410).

3. A cable placement device for rail transit according to claim 2, characterized in that: The initial length of the coil spring (49) is greater than the depth of the vertical hollow structure (44).

4. A cable placement device for rail transit according to claim 3, characterized in that: When the lower surface of the upper friction plate (410) contacts the upper surface of the lower friction plate structure (43), a gap exists between the bottom of the inner movable plate (46) and the bottom end of the vertical hollow structure (44).

5. A cable placement device for rail transit according to claim 4, characterized in that: The inner brake sleeve (57) generates friction force on the outer circumferential surface of the spherical body (55).

6. A cable placement device for rail transit according to claim 5, characterized in that: The spherical body (55) is provided with rounded corner structures (58) at two ends located at the threading hole (56).

Images