Refractory and static load detection tool for sleeper sleeve

Abstract

The utility model discloses a sleeper sleeve fire resistance and static load detection tool comprising the following structures: a first clamping block, one side of which is provided with a first gap; the second clamping block is detachably connected with the first clamping block, and a second notch is formed in the side, corresponding to the first clamping block, of the second clamping block, so that when the two clamping blocks are connected to form a clamping structure, the clamping structure is clamped; the first notch and the second notch define a connecting hole and a mounting hole matched with a sleeper sleeve, wherein the connecting hole and the mounting hole are located in the clamping structure and are sequentially formed in the vertical direction. One end of the stress part is clamped in the connecting hole, and the other end of the stress part is connected with a bearing structure; the sleeper sleeve is clamped in the mounting hole; and the force application assembly is in threaded connection with the interior of the sleeper sleeve. The detection tool can accurately detect the fire resistance and the static load durability of the sleeper sleeve under the condition that the concrete pre-embedded sleeper sleeve is not utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sleeper sleeve performance detection, especially relates to a sleeper sleeve fire resistance and static load detection tool. BACKGROUND

[0002] When installing high-speed rail or subway track, in order to prevent installation positioning error, affect construction assembly, structure stress state and appearance effect, sleeper sleeve is usually pre-buried in sleeper to be used for limiting and fixing during track assembly.

[0003] As the core stress component of sleeper installation limiting, sleeper sleeve is usually provided with longitudinal rib and transverse rib outside, and provided with threaded hole with internal thread inside rod body structure, so as to play the role of cooperating with fastener system to fix rail during track assembly, and long-term service. At present, fire damage and tensile damage are the main damage forms of sleeper sleeve. Therefore, it is crucial to detect the fire resistance and static load endurance of sleeper sleeve pre-buried state.

[0004] The existing detection standard does not specify specific sleeper fire resistance evaluation scheme, and tensile bearing capacity test is only for conventional pipe or bar. Since the structure of sleeper sleeve is special, the structure of the external longitudinal rib and transverse rib and the internal threaded hole with internal thread brings difficulty to the laboratory to directly detect the reliability and static load endurance of sleeper sleeve under fire.

[0005] Therefore, it is necessary to design a sleeper sleeve fire resistance and static load detection tool to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a sleeper sleeve fire resistance and static load detection tool which can accurately detect the fire resistance and static load endurance of sleeper sleeve without using concrete pre-buried sleeper sleeve.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A sleeper sleeve fire resistance and static load detection tool, comprising:

[0009] A first clamping block is provided with a first gap on one side;

[0010] A second clamping block is detachably connected with the first clamping block, and the second clamping block is provided with a second gap on the side corresponding to the first clamping block, so that when the two clamping blocks are connected to form a clamping structure, the first gap and the second gap enclose a connecting hole and a mounting hole adapted to the sleeper sleeve which are arranged in vertical sequence inside the clamping structure;

[0011] A force receiving member is clamped in the connecting hole at one end, and is used to connect a load bearing structure at the other end;

[0012] The sleeper sleeve is clamped in the mounting hole;

[0013] The force applying assembly is threadedly connected with the inside of the sleeper sleeve.

[0014] As a further improvement of the utility model, the first clamping block and the second clamping block are connected through a fixing assembly.

[0015] As a further improvement of the utility model, the fixing assembly comprises a plurality of first transverse through holes arranged on the first clamping block, a plurality of second transverse through holes arranged on the second clamping block corresponding to the first transverse through holes, and a fixing member.

[0016] As a further improvement of the utility model, a plurality of transverse rib grooves and longitudinal rib grooves matching the outer periphery of the sleeper sleeve are arranged on the side wall of the mounting hole.

[0017] As a further improvement of the utility model, the inner diameter size of the mounting hole is the same as the outer diameter size of the sleeper sleeve.

[0018] As a further improvement of the utility model, the force receiving member is a boom, and a clamping block clamped with the connecting hole is arranged at one end of the boom.

[0019] As a further improvement of the utility model, the force applying assembly comprises a connecting member and a force applying member arranged on the connecting member, and the end of the connecting member away from the force applying member is threadedly connected with the inside of the sleeper sleeve.

[0020] As a further improvement of the utility model, the end of the connecting member away from the clamping structure is provided with a bearing block with a diameter larger than that of the connecting member.

[0021] As a further improvement of the utility model, the force applying member is a weight placed on the bearing block.

[0022] As a further improvement of the utility model, the weight is provided with a mounting groove through which the rod body segment passes.

[0023] The utility model has the advantages of:

[0024] 1. The utility model discloses a sleeper sleeve, which is clamped in the mounting hole;

[0025] 2. The detection tool can complete the fire resistance test and static load endurance test of the sleeper sleeve of various specifications in the embedded state by replacing the clamping plate, and has universality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the sleeper sleeve fire resistance and static load detection tool.

[0027] Figure 2 It is a structure schematic view of the first clamping block.

[0028] Figure 3 It is a structure schematic view of the second clamping block.

[0029] Figure 4 It is a mechanism schematic view of the suspender.

[0030] Figure 5 It is a structure schematic view of the connecting rod.

[0031] Figure 6 It is a structure schematic view of the weight.

[0032] Figure 7 It is a structure schematic view of the sleeper sleeve.

[0033] REFERENCE NUMERALS

[0034] 11, first clamping block; 111, first transverse through hole; 12, second clamping block; 121, second transverse through hole; 13, mounting hole; 131, transverse rib groove; 132, longitudinal rib groove; 14, connecting hole; 141, clamping groove; 142, vertical hole; 20, suspender; 21, clamping block; 30, connecting rod; 31, threaded section; 32, rod body section; 33, bearing block; 40, weight; 41, U-shaped groove; 50, sleeper sleeve. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is described in detail below by combining with the drawings and specific embodiments.

[0036] Here, it also needs to be explained that, in order to avoid the utility model from being obscured by unnecessary details, only the structures and / or processing steps closely related to the scheme of the utility model are shown in the drawings, and other details not closely related to the utility model are omitted.

[0037] In addition, it also needs to be explained that the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0038] Referring to Figures 1-3 and Figure 7 The utility model provides a rail sleeper sleeve fire resistance and static load detection frock, include:

[0039] First clamping block 11, first gap is provided with one side of first clamping block 11;

[0040] Second clamping block 12 with first clamping block 11 is detachably connected, second gap is provided with one side of second clamping block 12 corresponding first clamping block 11, so that when two clamping blocks are connected to form clamping structure, first gap and second gap enclose and form the connecting hole 14 and the mounting hole 13 that are adapted to the rail sleeper sleeve 50 and arranged in sequence along the vertical direction in the inside of clamping structure;

[0041] Stress member, one end is clamped in connecting hole 14, and the other end is used for connecting bearing structure;

[0042] Rail sleeper sleeve 50 is clamped in mounting hole 13;

[0043] Force assembly is connected with the inside screw thread of rail sleeper sleeve 50.

[0044] Specifically, first clamping block 11 and second clamping block 12 are connected by fixing assembly.Exemplarily, as shown in Figure 2 and Figure 3 The fixing assembly includes a plurality of first transverse through holes 111 provided on the first clamping block 11, a plurality of second transverse through holes 121 provided on the second clamping block 12 corresponding to the first transverse through holes 111, and a fixing member;The fixing member is a bolt, and the second transverse through hole 121 is provided with an internal thread, by a plurality of bolts are respectively passed through first transverse through hole 111 and extend to corresponding second transverse through hole 121 fixed, first clamping block 11 and second clamping block 12 can be connected.

[0045] Exemplarily, connecting hole 14 and mounting hole 13 are located in the middle of clamping structure.Connecting hole 14 is located above mounting hole 13, about connecting hole 14 and mounting hole 13 can be set to be in communication state, that is, make the middle part of clamping structure form vertical through hole, also can make connecting hole 14 and mounting hole 13 are in non-communication state, in the example, connecting hole 14 and mounting hole 13 are in communication state.

[0046] Specifically, the mounting hole 13 is equal in size to the sleeper sleeve 50, and a plurality of horizontal rib grooves 131 and vertical rib grooves 132 are arranged on the side wall of the mounting hole 13 and are matched with the outer periphery of the sleeper sleeve 50, so that when the sleeper sleeve 50 is located in the mounting hole 13, the horizontal ribs and vertical ribs of the outer periphery of the sleeper sleeve 50 are respectively clamped in the horizontal rib grooves 131 and the vertical rib grooves 132, so that the sleeper sleeve 50 is clamped and connected with the mounting hole 13, and the clamping of the sleeper sleeve 50 by the clamping structure simulates the stress state of the sleeper sleeve 50 embedded in the concrete.

[0047] As shown in the example, Figure 4 the stressed member is a boom 20, and the boom 20 is provided with a clamping block 21 at one end which is clamped with the connecting hole 14; the connecting hole 14 includes a clamping groove 141 with a diameter equal to that of the clamping block 21 and a vertical hole 142 above the clamping groove 141 with a diameter equal to that of the boom 20, Figure 3 so that when the boom 20 is inserted into the vertical hole 142 so that the clamping block 21 is clamped with the clamping groove 141, the boom 20 is relatively fixed with the clamping structure.

[0048] As an example, a hooking member can be arranged at the end of the boom 20 away from the clamping block 21, so as to fix the boom 20 on the bearing structure.

[0049] As an example, the material of the clamping block is steel.

[0050] Specifically, the force applying assembly includes a connecting member and a force applying member arranged on the connecting member, and the connecting member is threadedly connected with the inside of the sleeper sleeve 50 at the end away from the force applying member. As shown in the example, Figure 5 the connecting member is a connecting rod 30, which includes a threaded section 31 threadedly connected with the inside of the sleeper sleeve 50 and a rod body section 32 connected with the threaded section 31, and the end of the rod body section 32 away from the threaded section 31 is provided with a bearing block 33 with a larger diameter than the rod body section 32, so as to place the force applying member on the bearing block 33, so that the inside of the sleeper sleeve 50 is subjected to a vertical downward force.

[0051] As an example, the force applying member is a weight 40 placed on the bearing block 33, and the weight 40 is provided with a mounting groove for the rod body section 32 to pass through. As an example, the mounting groove is a U-shaped groove 41. Figure 6

[0052] ​In use, the sleeper sleeve 50 and the hanger 20 are respectively placed in corresponding positions on the first gap of the first clamping block 11, the second clamping block 12 is placed opposite to the first clamping block 11, the first transverse through hole 111 is aligned with the second transverse through hole 121, and the bolt is sequentially extended into the second transverse through hole 121 through the first transverse through hole 111 to be fixed, so that the first clamping block 11 and the second clamping block 12 are kept relatively fixed to form a clamping structure, at this time, the sleeper sleeve 50 is located in the mounting hole 13 and kept fixed in a clamped state with the clamping structure, and the end of the hanger 20 is located in the connecting hole 14 and kept fixed in a clamped state with the clamping structure; the threaded segment 31 of the connecting rod 30 is threadedly connected with the threaded hole in the interior of the sleeper sleeve 50.

[0053] The corresponding mass of the weight 40 is placed on the bearing block 33, and then the end of the hanger 20 away from the clamping block 21 is placed on the clamp of the fire resistance test furnace, so that the fire resistance test and static load endurance test of the sleeper sleeve 50 in the embedded state can be carried out.

[0054] The utility model discloses the setting of detection tool is carried out by the structural features of sleeper sleeve 50, makes sleeper sleeve 50 through the horizontal rib and vertical rib and clamping structure clamping connection, and force assembly is connected with the interior screw thread of sleeper sleeve 50, and then can be in static load endurance test, through the synchronous force of sleeper sleeve 50 interior and exterior, namely the horizontal rib and vertical rib clamping connection of clamping structure and sleeper sleeve 50 in the example, by placing the stressed member on the clamp of fire resistance test, make the vertical upward force of sleeper sleeve 50 exterior, make the vertical downward force of sleeper sleeve 50 interior through force assembly, to simulate the actual use state of sleeper sleeve 50, namely, in actual use, the interior and exterior of sleeper sleeve 50 will be subjected to the force in opposite directions, thereby accurately detecting the static load endurance performance of sleeper sleeve 50.

[0055] In addition, the clamping of the clamping structure to the sleeper sleeve 50 simulates the state of the sleeper sleeve 50 embedded in the sleeper, so that the damage degree of the sleeper sleeve 50 caused by fire can be accurately simulated through the fire resistance test.

[0056] Regarding the clamping block, a clamping block of a corresponding specification can be used according to the specification of the sleeper sleeve 50, so that the detection tool can complete the fire resistance test and static load endurance test of sleeper sleeves 50 of various specifications without changing the main structure, and the sleeper sleeve 50 is embedded by the clamping structure, which can effectively reduce the consumption of concrete and save detection costs compared with the existing method of detecting the performance of the sleeper sleeve 50 by embedding concrete.

[0057] The above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A fixture for testing the fire resistance and static load of railway sleeper sleeves, characterized in that, include: A first clamping block, wherein a first notch is provided on one side of the first clamping block; The second clamping block is detachably connected to the first clamping block. The second clamping block has a second notch on one side corresponding to the first clamping block. When the two clamping blocks are connected to form a clamping structure, the first notch and the second notch surround and form a vertically arranged connecting hole and an installation hole adapted to the sleeper sleeve located inside the clamping structure. The load-bearing component has one end snapped into the connecting hole and the other end used to connect to the load-bearing structure; The sleeper sleeve is snapped into the mounting hole; The force-applying component is connected to the internal thread of the sleeper sleeve.

2. The sleeper sleeve fire resistance and static load testing fixture according to claim 1, characterized in that: The first clamping block and the second clamping block are connected by a fixing component.

3. The sleeper sleeve fire resistance and static load testing fixture according to claim 2, characterized in that: The fixing component includes a plurality of first transverse through holes disposed on the first clamping block, a plurality of second transverse through holes disposed on the second clamping block corresponding to the first transverse through holes, and a fixing member.

4. The sleeper sleeve fire resistance and static load testing fixture according to claim 1, characterized in that: The mounting hole sidewall is provided with several transverse and longitudinal rib grooves that are adapted to the outer circumference of the sleeper sleeve.

5. The sleeper sleeve fire resistance and static load testing fixture according to claim 1, characterized in that: The inner diameter of the mounting hole is the same as the outer diameter of the sleeper sleeve.

6. The sleeper sleeve fire resistance and static load testing fixture according to claim 1, characterized in that: The load-bearing component is a boom, and one end of the boom is provided with a locking block that engages with the connecting hole.

7. The sleeper sleeve fire resistance and static load testing fixture according to claim 1, characterized in that: The force-applying component includes a connector and a force-applying element disposed on the connector. The end of the connector away from the force-applying element is threadedly connected to the inside of the sleeper sleeve.

8. The sleeper sleeve fire resistance and static load testing fixture according to claim 7, characterized in that: The end of the connector away from the clamping structure is provided with a bearing block with a diameter larger than that of the connector.

9. The sleeper sleeve fire resistance and static load testing fixture according to claim 8, characterized in that: The force-applying component is a weight placed on the support block.

10. The sleeper sleeve fire resistance and static load testing fixture according to claim 9, characterized in that: The weight is provided with a mounting groove for the rod section to pass through.

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