Positioning device for embedded sleeve of switch tie

Abstract

The utility model provides a switch tie pre-embedded sleeve positioning device which comprises a pressing fixing piece, a positioning piece, a positioning piece and a positioning piece, wherein the pressing fixing piece is used for pressing a pre-embedded sleeve; the positioning connecting piece is arranged on a bottom plate of the switch tie steel die, the upper portion of the positioning connecting piece is located in the steel die, and the bottom of the positioning connecting piece is located on the outer side of the steel die; the locking connecting piece is arranged on the positioning connecting piece, so that the positioning connecting piece is detachably connected with the bottom plate; and the connecting part is arranged between the positioning connecting piece and the pressing fixing piece, so that the pressing fixing piece and the positioning connecting piece are detachably connected. According to the utility model, the pre-embedded sleeve can be positioned and mounted in the steel mould through the matching of the pressing and fixing piece and the positioning and connecting piece, and the positioning and mounting of the pre-embedded sleeve can be completed by one person, so that the operation of working personnel is greatly facilitated.

Description

Technical Field

[0001] The utility model relates to a switch sleeper steel mould, in particular to a switch sleeper pre-embedded casing positioning device. Background Art

[0002] The embedded casing of railway switch sleepers is an important part of railway engineering reduction. It is used to protect and support the switch sleepers of railway tracks to ensure the safety and stability of train operation. At present, the casing positioning of sleepers is mostly done by bolt positioning. During operation, the steel mold needs to be erected first, one person installs the bolts from the bottom of the steel mold, and the other person installs the casing from the front of the steel mold. It takes two people to complete the positioning and installation of the casing, which is inconvenient to install and the positioning accuracy is not easy to guarantee. Utility Model Content

[0003] The utility model provides a switch sleeper pre-embedded sleeve positioning device. When the pre-embedded sleeve is positioned and installed by the device, the positioning and installation of the sleeve can be completed by one person.

[0004] To achieve the above-mentioned purpose, the utility model provides a switch sleeper embedded sleeve positioning device, including: a clamping fixing piece, used to clamp the embedded sleeve; a positioning connecting piece, arranged on the bottom plate of the switch sleeper steel mold, the upper part of the positioning connecting piece is located inside the steel mold, and the bottom part thereof is located outside the steel mold; a locking connecting piece, arranged on the positioning connecting piece, so that the positioning connecting piece and the bottom plate can be detachably connected; and a connecting part, arranged between the positioning connecting piece and the clamping fixing piece, so that the clamping fixing piece and the positioning connecting piece can be detachably connected.

[0005] Further, the connecting part includes: a connecting head, which is provided with an external thread; and a connecting hole, which is provided with an internal thread adapted to the external thread of the connecting head, so that the connecting head is threadedly connected to the connecting hole; wherein, the connecting head is coaxially arranged on the bottom surface of the clamping fixture, and the connecting hole is opened on the top surface of the positioning connector and is coaxially arranged therewith; or the connecting head is coaxially arranged on the top surface of the positioning connector, and the connecting hole is arranged on the bottom surface of the clamping fixture, and the two are coaxially arranged.

[0006] Furthermore, the clamping fixture includes: a clamping portion, whose diameter is larger than the inner diameter of the embedded sleeve; a supporting portion, which is arranged on the bottom surface of the clamping portion and is coaxially arranged therewith, and the diameter of the supporting portion matches the inner diameter of the embedded sleeve, so that when the supporting portion is inserted into the embedded sleeve, its outer surface contacts the inner surface of the top of the inner hole of the embedded sleeve; and a tail portion, which is arranged on the bottom surface of the supporting portion and is coaxially arranged therewith; wherein the bottom surface of the clamping portion is a plane.

[0007] Further, the positioning connector includes: a positioning portion, which is arranged on the upper surface of the base plate; a mounting portion, which is gap-matched with the mounting hole opened on the base plate; and a locking portion, which is located below the base plate and is arranged on the outside of the switch sleeper steel mold, and the locking portion is detachably connected to the locking connector; wherein the positioning portion, the mounting portion and the locking portion are connected in sequence from top to bottom, and the outer diameter of the positioning portion matches the inner diameter of the embedded sleeve, so that after the embedded sleeve is inserted into the positioning portion, the outer surface of the positioning portion contacts the bottom surface of the inner hole of the embedded sleeve, and the locking portion is provided with an external thread.

[0008] Furthermore, a positioning cone extending upward and having a gradually decreasing diameter is provided at the top of the positioning portion.

[0009] Furthermore, the locking connector includes: a locking nut threadedly connected to the locking portion; and a flat washer disposed between the base plate and the locking nut, the flat washer being sleeved on the locking portion.

[0010] Furthermore, a hexagonal inner groove extending downward is provided at the top center of the clamping fixture.

[0011] Compared with the prior art, the utility model has the following technical effects:

[0012] 1. By applying the technical solution of the utility model, the embedded sleeve can be positioned and installed in the steel mold through the cooperation of the clamping fixture and the positioning connector. One person can easily complete the positioning and installation of the embedded sleeve, which greatly facilitates the work of the staff;

[0013] 2. The switch sleeper pre-embedded casing positioning device of the utility model provides radial support to the upper and lower parts of the pre-embedded casing through the structural design of the clamping fixing piece and the positioning connecting piece, thereby preventing the casing from tilting or sinking during use, ensuring the position and size of the casing and improving the positioning accuracy;

[0014] 3. When the switch sleeper pre-embedded casing positioning device of the utility model is used to position and install the casing, the pressing part of the pressing fixture is pressed against the top surface of the casing to prevent the concrete slurry from penetrating into the casing and causing the casing to fail;

[0015] 4. The switch sleeper embedded casing positioning device of the utility model positions and installs the casing through the detachable connection between the clamping fixing part and the positioning connecting part, and the detachable connection between the positioning connecting part and the steel formwork bottom plate. The overall structural design is ingenious, simple, easy to manufacture, and can be completed by one person. It is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of this specification and are used for further understanding of the present invention, illustrate preferred embodiments of the present invention and are used to explain the principles of the present invention together with the description.

[0017] Figure 1 The utility model shows a structural schematic diagram of the switch sleeper pre-embedded casing positioning device.

[0018] The meanings of the numbers in the figure are: 1. embedded casing, 2. steel mold;

[0019] 100, a clamping fixture, 110, a clamping portion, 120, a supporting portion, 130, a tail portion;

[0020] 200, positioning connector, 210, positioning portion, 220, mounting portion, 230, locking portion;

[0021] 300, locking connector, 310, locking nut, 320, flat washer;

[0022] 400, connecting portion, 410, connecting head;

[0023] 500, Hexagonal groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, devices, components and / or their combinations.

[0026] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of description and simplification of description. In the absence of any contrary instructions, these directional words do not indicate or imply that the device or device referred to must have a specific direction or a specific directional structure and operation, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of use or operation in addition to the orientation of the device described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices and structures" is then positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0028] Example: Figure 1 As shown, this embodiment is a switch sleeper embedded sleeve positioning device, which is used to position and install the embedded sleeve 1 in the switch sleeper steel mold 2. The switch sleeper embedded sleeve positioning device includes a clamping fixture 100, a positioning connector 200, a locking connector 300 and a connecting portion 400, wherein the clamping fixture 100 is used to clamp the embedded sleeve 1, the positioning connector 200 is arranged on the bottom plate 201 of the switch sleeper steel mold 2, the locking connector 300 is arranged on the positioning connector 200, so that the positioning connector 200 is detachably connected to the bottom plate 201, and the connecting portion 400 is arranged between the positioning connector 200 and the clamping fixture 100, so that the clamping fixture and the positioning connector 200 are detachably connected. In this way, the positioning connector 200 is detachably installed on the bottom plate 201 through the locking connector 300, and the clamping fixture 100 and the positioning connector 200 are detachably connected through the connecting portion 400. The upper portion of the positioning connector 200 is located inside the steel mold 2 , and the bottom portion thereof is located outside the steel mold 2 .

[0029] The connecting portion 400 includes a connecting head 401 and a connecting hole (not shown in the figure). The connecting head 400 is provided with an external thread, and the connecting hole is provided with an internal thread adapted to the external thread of the connecting head 401, so that the connecting head 401 is threadedly connected to the connecting hole. Figure 1 As shown, the connecting head 401 is coaxially arranged on the bottom surface of the clamping fixture 100 , and the connecting hole is opened on the top surface of the positioning connector 200 , and the connecting hole is coaxially arranged with the positioning connector 200 .

[0030] In other embodiments not shown in the figures, the connector 401 is coaxially arranged on the top surface of the positioning connector 200, the connecting hole is arranged on the bottom surface of the clamping fixture 100, and the connecting hole is coaxially arranged with the clamping fixture 100.

[0031] The switch tie pre-embedded casing positioning device of this embodiment can position and install the casing 1 in the steel mold 2. Specifically, when in use, first install the positioning connector 200 on the bottom plate 201 and use the locking connector 300 to lock and fix it (the positioning connector 200 can be pre-fixed in the steel mold 2 after the last demoulding for use), then put the bottom of the casing 1 on the upper side of the positioning connector 200, and then insert the clamping fixture 100 into the inner hole of the casing 1, and finally rotate the clamping fixture 100 so that the connector 410 on it is threadedly connected with the connecting hole opened on the positioning connector 200, and its upper part is pressed on the top surface of the casing 1. One person can work, and the construction is simple.

[0032] The structure of the clamping fixture of this embodiment is as follows: the clamping fixture 100 includes a clamping portion 110, a supporting portion 120 and a tail portion 130. The diameter of the clamping portion 110 is larger than the inner diameter of the embedded sleeve 1. The supporting portion 120 is arranged on the bottom surface of the clamping portion 110. The supporting portion 120 and the clamping portion are coaxially arranged. The diameter of the supporting portion 120 matches the inner diameter of the embedded sleeve 1, so that when the supporting portion 120 is inserted into the embedded sleeve 1, its outer surface contacts the inner surface of the top of the inner hole of the embedded sleeve 120, and the embedded sleeve 1 plays a supporting role to prevent the embedded sleeve 1 from being skewed during use. The tail portion 130 is arranged on the bottom surface of the support portion 120, and the tail portion 130 is coaxially arranged with the support portion 120; wherein, the bottom surface of the clamping portion 110 is a plane, and its flatness is level 1 to ensure the fit between the bottom surface of the clamping portion 110 and the top surface of the embedded sleeve 1. When in use, the bottom surface of the clamping portion 110 is pressed against the top surface of the embedded sleeve 1 to prevent concrete from penetrating into the embedded sleeve 1 and causing failure.

[0033] The positioning connector 200 includes a positioning portion 210, a mounting portion 220 and a locking portion 230. The positioning portion 210 is arranged on the upper surface of the bottom plate 201; the mounting portion 220 is matched with the mounting hole provided on the bottom plate 201 to facilitate demoulding. When demoulding, the locking connector 300 is loosened and removed, and the positioning connector 200 is removed from the steel mold 2 along with the completed switch sleeper. The locking portion 230 is located below the bottom plate 201 and is arranged on the outside of the switch sleeper steel mold 2. The locking portion 230 is detachably connected to the locking connector 300.

[0034] Among them, the positioning part 210, the mounting part 220 and the locking part 230 are connected in sequence from top to bottom, and the outer diameter of the positioning part 210 matches the inner diameter of the embedded sleeve 1, so that after the embedded sleeve 1 is inserted into the positioning part 210, the outer surface of the positioning part 210 contacts the bottom surface of the inner hole of the embedded sleeve 1 to support the embedded sleeve 1, ensure the stability of the embedded sleeve, and prevent it from tilting or sinking with the pouring, vibration and tamping of concrete, so as to ensure the dimensional accuracy of the embedded sleeve 1. The locking part 230 is provided with an external thread to be threadedly connected with the locking connector. The cooperation of the positioning part 210 and the supporting part 120 simultaneously supports and positions the upper and lower ends of the embedded sleeve 1, thereby ensuring the positioning accuracy of the positioning device of the utility model.

[0035] As another preferred embodiment of the utility model, the top of the positioning portion 210 is provided with a positioning cone 211 extending upward and with a gradually decreasing diameter. The positioning cone 211 can play a self-centering role to prevent the embedded sleeve 1 from being skewed or having a position deviation due to operating errors during operation, thereby ensuring positioning accuracy.

[0036] The locking connector 300 of this embodiment includes a locking nut 310 and a flat washer 320, and the locking nut 310 is threadedly connected to the locking portion 230. The flat washer 320 is arranged between the bottom plate 201 and the locking nut 210, and the flat washer 320 is sleeved on the locking portion 230. Such a design ensures that the locking nut 310 is loosened when the steel mold 2 vibrates.

[0037] In order to facilitate the rotation of the clamping fixture, in this embodiment, a hexagonal inner groove 500 extending downward is opened at the top center of the clamping fixture 100.

[0038] Through the switch sleeper embedded sleeve positioning device provided by the above embodiment, the embedded sleeve 1 can be positioned and installed in the steel mold 2 through the cooperation of the clamping fixture 100 and the positioning connector 200. The clamping fixture 100 is pre-installed in the steel mold 2, and the embedded sleeve 1 can be positioned and installed by one person, which greatly facilitates the work of the staff. In addition, through the structural design of the clamping fixture 100 and the positioning connector 200, the upper and lower parts of the embedded sleeve 1 are radially supported, which prevents the sleeve 1 from tilting or sinking during use, and ensures the positioning accuracy.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A switch sleeper pre-embedded casing positioning device, characterized in that: include: The clamping fixture is provided with a connecting head; A positioning connector is arranged on the bottom plate of the switch sleeper steel mold; A locking connector, disposed on the positioning connector, so that the positioning connector is detachably connected to the base plate; and The connecting portion is arranged between the positioning connecting member and the pressing and fixing member so that the pressing and fixing member and the positioning connecting member can be detachably connected.

2. The switch tie pre-embedded casing positioning device according to claim 1 is characterized in that: The connecting portion comprises: A connector having an external thread; and A connecting hole, provided with an internal thread adapted to the external thread of the connecting head, so that the connecting head is threadedly connected to the connecting hole; Among them, the connecting head is coaxially arranged on the bottom surface of the clamping fixture, and the connecting hole is opened on the top surface of the positioning connection and arranged coaxially therewith; or the connecting head is coaxially arranged on the top surface of the positioning connection, and the connecting hole is arranged on the bottom surface of the clamping fixture, and the two are coaxially arranged.

3. The switch tie pre-embedded casing positioning device according to claim 1 is characterized in that: The clamping fixture comprises: The compression part has a diameter larger than the inner diameter of the embedded casing; A support portion is provided on the bottom surface of the pressing portion and is coaxially arranged therewith, wherein the diameter of the support portion matches the inner diameter of the embedded sleeve, so that when the support portion is inserted into the embedded sleeve, its outer surface contacts the inner surface of the top of the inner hole of the embedded sleeve; and The tail portion is arranged on the bottom surface of the support portion and is coaxially arranged therewith; Wherein, the bottom surface of the pressing portion is a plane.

4. The switch tie pre-embedded casing positioning device according to claim 1, characterized in that: The positioning connector comprises: A positioning portion, arranged on the upper surface of the bottom plate; A mounting portion, which is loosely matched with a mounting hole provided on the bottom plate; and A locking portion, located below the bottom plate and arranged outside the switch sleeper steel mold, wherein the locking portion is detachably connected to the locking connection; The positioning portion, the mounting portion and the locking portion are connected in sequence from top to bottom, the outer diameter of the positioning portion is equal to the inner diameter of the embedded sleeve, and the locking portion is provided with an external thread.

5. The switch tie pre-embedded casing positioning device according to claim 4, characterized in that: A positioning cone extending upward and having a gradually decreasing diameter is arranged at the top of the positioning portion.

6. The switch sleeper pre-embedded casing positioning device according to claim 4, characterized in that: The locking connector comprises: A locking nut threadably connected to the locking portion; and A flat washer is arranged between the base plate and the locking nut, and the flat washer is sleeved on the locking portion.

7. The switch tie pre-embedded casing positioning device according to claim 4, characterized in that: A hexagonal inner groove extending downward is provided at the center of the top of the clamping fixing piece.

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