Side-mounted outer locking frame heating strip fixing device

Abstract

A side-mounted outer locking frame heating strip fixing device comprises a U-shaped side-mounted fixing plate, a heat conduction cushion block and a front pressing plate. The U-shaped side-mounted fixing plate is mainly composed of a left fixing plate, a front fixing plate and a right fixing plate, and the front fixing plate is provided with a fixing hole connected with a bolt on the outer locking frame; the left fixing plate is provided with a first fixing clamp used for fixedly pressing a handle of the U-shaped heating strip on the left side face of the outer locking frame, and the right fixing plate is provided with a second fixing clamp used for fixedly pressing the right side portion of a U-shaped heating strip body on the right side face of the outer locking frame. The heat conduction cushion block is fixedly connected to the front side face of the front fixing plate through the front face pressing plate through screws, and the front side portion of the U-shaped heating strip body is located between the front face pressing plate and the heat conduction cushion block. The outer locking frame is convenient to install on site, the heating strip can be tightly attached to the outer locking frame, the heating effect is good, an existing bolt of the outer locking frame can be used for installation, the original structure of the outer locking frame is not affected, and normal action of the locking rod is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation in the railway industry, and in particular to a side-mounted external locking frame heating strip fixing device. Background Art

[0002] The electric heating turnout snow melting system is an important means for the railway industry to solve natural disasters such as snow accumulation and ice on turnouts in cold areas. It installs heating strips at the external locking of the railway to provide heating and snow melting functions for the locking rods of the external locking, preventing the locking rods from freezing or thick snow accumulation during natural disasters such as severe weather (heavy snow, ice), resulting in the external locking being unable to perform the required actions. The fixing fixture of the heating strip is an important part of the electric heating turnout snow melting system.

[0003] The existing external locking heating device is complicated to install and troublesome to operate on site; because the heating strip is usually processed into a U-shaped structure, the minimum bending radius of the heating strip is 20mm, so the heating strip and the external locking frame are not tightly fitted, and the heating effect is not ideal; furthermore, the existing fixing fixture and the heating strip clamp the external locking frame in a clamping manner, and the installation screws are facing upwards, which is not beautiful and easy to loosen and fall off. In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and thus provide a side-mounted external locking frame heating strip fixing device. The utility model is easy to install on site, can make the heating strip fit tightly with the external locking frame, and has a good heating effect. The installation can utilize the existing bolts of the external locking frame without affecting the original structure of the external locking frame or the normal operation of the locking rod.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a side-mounted outer locking frame heating strip fixing device, which is used to horizontally clamp and fix the U-shaped heating strip on the outer locking frame from front to back, including a U-shaped side-mounted fixing plate, a heat-conducting pad and a front pressure plate;

[0006] The structure and size of the U-shaped side-mounted fixing plate are adapted to the front lower part of the outer locking frame. The U-shaped side-mounted fixing plate is mainly composed of a left fixing plate, a front fixing plate and a right fixing plate. The front side of the left fixing plate is fixedly connected to the upper side of the left side of the front fixing plate, and the front side of the right fixing plate is fixedly connected to the upper side of the right side of the front fixing plate. The front fixing plate is provided with fixing holes connected to the bolts on the outer locking frame.

[0007] The left fixing plate is provided with a first fixing fixture for fixing and pressing the handle of the U-shaped heating strip on the left side of the outer locking frame, and the right fixing plate is provided with a second fixing fixture for fixing and pressing the right side of the U-shaped heating strip body on the right side of the outer locking frame;

[0008] The front pressure plate fixes the thermal pad to the front side of the front fixing plate by screws. The front side of the U-shaped heating strip body is located between the front pressure plate and the thermal pad. The front pressure plate presses the front side of the U-shaped heating strip body tightly against the thermal pad.

[0009] Based on the above, the upper sides of the left fixed plate, the front fixed plate and the right fixed plate are flush, the lower side of the left fixed plate is flush with the lower side of the right fixed plate and is higher than the lower side of the front fixed plate, and a groove for avoiding the locking rod is provided in the middle of the upper side of the front fixed plate; the front side of the left fixed plate and the upper side of the left side of the front fixed plate are integrally formed and connected by a circular arc transition, and the front side of the right fixed plate and the upper side of the right side of the front fixed plate are integrally formed and connected by a circular arc transition.

[0010] Based on the above, the first fixing fixture includes a first vertical clamping plate, the upper side portion of the first vertical clamping plate is tightly fitted with the left side surface of the left fixing plate and is fixedly connected to the left fixing plate by a plurality of rivets, and the lower side portion of the first vertical clamping plate is integrally formed with an arc clamping structure that is adapted to the shape of the handle of the U-shaped heating strip, and the open side of the arc clamping structure is set toward the lower right, and the arc clamping structure is clamped on the left side of the handle of the U-shaped heating strip to press the handle of the U-shaped heating strip against the left side surface of the outer locking frame.

[0011] Based on the above, the second fixing fixture includes a second vertical clamping plate, the upper side portion of the second vertical clamping plate is tightly fitted with the right side surface of the right fixing plate and is fixedly connected to the right fixing plate by a plurality of rivets, and the lower side portion of the second vertical clamping plate is integrally formed with a C-shaped clamping structure that is adapted to the shape of the U-shaped heating strip body, and the open side of the C-shaped clamping structure is set to the left, and the C-shaped clamping structure is clamped on the right side of the right side portion of the U-shaped heating strip body to press the right side portion of the U-shaped heating strip body against the right side surface of the outer locking frame.

[0012] Based on the above, a first screw hole for installing the screw is opened on the lower side of the front pressure plate, and a stopper for fixing the screw is arranged on the lower side of the front pressure plate, and the stopper is correspondingly located below the first screw hole.

[0013] Based on the above, a convex strip is integrally formed on the lower side of the front side of the thermal pad, and a second screw hole corresponding to the front and rear of the first screw hole is opened on the convex strip, and a third screw hole corresponding to the front and rear of the second screw hole is opened on the lower side of the front fixing plate, and the corresponding threads of the screws are installed in the corresponding first screw hole, second screw hole and third screw hole, the front pressure plate is fixedly connected to the front side of the convex strip, and the front side of the U-shaped heating strip body is arranged above the convex strip.

[0014] Based on the above, the upper side edge of the front pressure plate is bent backward to form a horizontal folded edge blocking the front side portion of the U-shaped heating strip body.

[0015] Based on the above, the thermal pad is made of 6061 aluminum alloy.

[0016] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0017] (1) The side-mounted external locking frame heating strip fixing device is easy to install on site: the U-shaped heating strip and the side-mounted external locking frame heating strip fixing device can be pre-installed to form a heating assembly, and on site, only the heating assembly needs to be installed on the external locking frame.

[0018] (2) The U-shaped side-mounted fixing plate can be fixed using the existing bolts of the outer locking frame, and then the heating component can be installed on the outer locking frame without affecting the original structure of the outer locking frame. No additional fixing bolts are required. In addition, the front pressure plate fixes the thermal pad to the front fixing plate with screws, and a stopper is used to fix the screws to prevent the screws from loosening and falling off.

[0019] (3) The arc clamp structure of the first fixing fixture can press the handle of the U-shaped heating strip against the left side of the outer locking frame, and the C-shaped clamp structure of the second fixing fixture can press the right side of the U-shaped heating strip body against the right side of the outer locking frame. At the same time, the front side of the U-shaped heating strip body is pressed against the thermal pad through the front pressure plate, which can make the U-shaped heating strip more securely fixed and make the U-shaped heating strip and the outer locking frame fit tightly to ensure the heating effect. The thermal pad is made of 6061 aluminum alloy, which has good heat transfer effect, is easy to process and has low cost.

[0020] (4) A groove is provided in the middle of the upper side of the front fixing plate to avoid the locking rod, which does not affect the normal movement of the locking rod. In addition, the U-shaped heating strip is closer to the locking rod, which has a better heating effect for melting snow and ice. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is an axial view of the utility model in which the U-shaped heating strip is fixed on the outer locking frame.

[0023] Figure 3 It is a front view of the utility model in which the U-shaped heating strip is fixed on the outer locking frame.

[0024] Figure 4 It is a left view of the utility model in which the U-shaped heating strip is fixed on the outer locking frame.

[0025] Figure 5 It is an axial view of the U-shaped side-mounted fixing plate of the utility model.

[0026] Figure 6 It is a front view of the U-shaped side-mounted fixing plate of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the front pressing plate of the utility model.

[0028] Figure 8 It is a structural schematic diagram of the heat-conducting pad of the utility model.

[0029] In the figure: 1. U-shaped heating strip; 2. External locking frame; 3. U-shaped side-mounted fixing plate; 4. Thermal pad; 5. Front pressure plate; 3-1. Left fixing plate; 3-2. Front fixing plate; 3-3. Right fixing plate; 6. Bolts; 7. Fixing holes; 8. Screws; 9. Locking rod; 10. Groove; 11. First vertical clamping plate; 12. Rivet; 13. Arc clamping structure; 14. Second vertical clamping plate; 15. C-shaped clamping structure; 16. First screw hole; 17. Stop plate; 18. Raised strip; 19. Second screw hole; 20. Third screw hole; 21. Horizontal folded edge; 22. Handle; 23. Heating strip cable. DETAILED DESCRIPTION

[0030] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0031] Example 1

[0032] like Figure 1-6 As shown, the side-mounted outer locking frame heating strip fixing device is used to horizontally clamp and fix the U-shaped heating strip 1 on the outer locking frame 2 from front to back, including a U-shaped side-mounted fixing plate 3, a heat conductive pad 4 and a front pressure plate 5;

[0033] The structure and size of the U-shaped side-mounted fixing plate 3 are adapted to the front lower part of the outer locking frame 2. The U-shaped side-mounted fixing plate 3 is mainly composed of a left fixing plate 3-1, a front fixing plate 3-2 and a right fixing plate 3-3. The front side of the left fixing plate 3-1 is fixedly connected to the upper side of the left side of the front fixing plate 3-2, and the front side of the right fixing plate 3-3 is fixedly connected to the upper side of the right side of the front fixing plate 3-2. The front fixing plate 3-2 is provided with a fixing hole 7 connected to the bolt 6 on the outer locking frame 2. There are two fixing holes 7 symmetrically arranged on the left and right, which are respectively connected to the two bolts 6 on the outer locking frame 2;

[0034] The left fixing plate 3-1 is provided with a first fixing fixture for fixing and pressing the handle 22 of the U-shaped heating strip 1 onto the left side of the outer locking frame 2, and the right fixing plate 3-3 is provided with a second fixing fixture for fixing and pressing the right side of the body of the U-shaped heating strip 1 onto the right side of the outer locking frame 2;

[0035] The front pressure plate 5 fixes the thermal pad 4 to the front side of the front fixing plate 3-2 through screws 8. The front side of the U-shaped heating strip 1 body is located between the front pressure plate 5 and the thermal pad 4. The front pressure plate 5 presses the front side of the U-shaped heating strip 1 body tightly against the thermal pad 4.

[0036] The upper sides of the left fixing plate 3-1, the front fixing plate 3-2 and the right fixing plate 3-3 are flush with each other, the lower sides of the left fixing plate 3-1 and the lower sides of the right fixing plate 3-3 are flush with each other and are higher than the lower sides of the front fixing plate 3-2, and a groove 10 for avoiding the locking rod 9 is provided in the middle of the upper side of the front fixing plate 3-2, which does not affect the normal action of the locking rod 9; the front side of the left fixing plate 3-1 and the upper side of the left side of the front fixing plate 3-2 are integrally formed and connected by a circular arc transition, and the front side of the right fixing plate 3-3 and the upper side of the right side of the front fixing plate 3-2 are integrally formed and connected by a circular arc transition.

[0037] The first fixing fixture includes a first vertical clamping plate 11, the upper side of the first vertical clamping plate 11 is tightly fitted with the left side surface of the left fixing plate 3-1 and is fixedly connected to the left fixing plate 3-1 by a plurality of rivets 12, and the lower side of the first vertical clamping plate 11 is integrally formed with an arc clamping structure 13 that is adapted to the shape of the handle 22 of the U-shaped heating strip 1, and the open side of the arc clamping structure 13 is arranged toward the lower right, and the arc clamping structure 13 is clamped on the left side of the handle 22 of the U-shaped heating strip 1 to press the handle 22 of the U-shaped heating strip 1 against the left side surface of the outer locking frame 2.

[0038] The second fixing fixture includes a second vertical clamping plate 14, the upper side of the second vertical clamping plate 14 is tightly fitted with the right side surface of the right fixing plate 3-3 and is fixedly connected to the right fixing plate 3-3 by a plurality of rivets 12, and the lower side of the second vertical clamping plate 14 is integrally formed with a C-shaped clamping structure 15 that is adapted to the shape of the U-shaped heating strip 1 body. The open side of the C-shaped clamping structure 15 is set to the left, and the C-shaped clamping structure 15 is clamped on the right side of the right side of the U-shaped heating strip 1 body to press the right side of the U-shaped heating strip 1 body against the right side surface of the outer locking frame 2.

[0039] When the present embodiment is used, the U-shaped heating strip 1, the U-shaped side-mounted fixing plate 3, the heat-conducting pad 4 and the front pressure plate 5 are installed together to form a heating assembly in advance. Specifically, the heat-conducting pad 4 is placed on the front side of the front fixing plate 3-2, and then the U-shaped heating strip 1 is horizontally clamped on the heat-conducting pad 4 from front to back, so that the handle 22 of the U-shaped heating strip 1 is clamped into the arc clamp structure 13, and the right side of the U-shaped heating strip 1 body is clamped into the C-shaped clamp structure 15. After that, the front pressure plate 5 presses the front side of the U-shaped heating strip 1 body tightly against the heat-conducting pad 4, and the front pressure plate 5, the heat-conducting pad 4 and the front fixing plate 3-2 are fixedly connected with the screws 8. After completing the installation of the heating component, the U-shaped heating strip 1 and the U-shaped side-mounted fixing plate 3 are clamped on the front lower part of the outer locking frame 2 from front to back, and the existing bolts 6 on the outer locking frame 2 are passed through the fixing holes 7 on the front fixing plate 3-2 to fix the front fixing plate 3-2 to the outer locking frame 2. The arc clamp structure 13 presses the handle 22 of the U-shaped heating strip 1 against the left side surface of the outer locking frame 2, and the C-shaped clamp structure 15 presses the right side of the U-shaped heating strip 1 body against the right side surface of the outer locking frame 2. The U-shaped heating strip 1 can be clamped and fixed on the outer locking frame 2 and fit tightly with the outer locking frame 2, thereby ensuring the heating effect and facilitating on-site installation.

[0040] Example 2

[0041] like Figure 4 , 7 As shown in 8, on the basis of Example 1, a first screw hole 16 for installing the screw 8 is opened on the lower side of the front pressure plate 5, and a stopper 17 for fixing the screw 8 is provided on the lower side of the front pressure plate 5. The stopper 17 is located below the first screw hole 16, and the stopper 17 prevents the screw 8 from loosening and falling off. After the screw 8 is tightened, the stopper 17 is knocked forward and upward to a horizontal state.

[0042] A convex strip 18 is integrally formed on the lower side of the front side of the thermal pad 4, and a second screw hole 19 is opened on the convex strip 18 for corresponding to the front and rear of the first screw hole 16. A third screw hole 20 corresponding to the front and rear of the second screw hole 19 is opened on the lower side of the front fixing plate 3-2. The screws 8 are correspondingly threadedly installed in the corresponding first screw hole 16, second screw hole 19 and third screw hole 20. The front pressure plate 5 is fixedly connected to the front side of the convex strip 18, and the front side of the U-shaped heating strip 1 body is arranged above the convex strip 18 to ensure that the U-shaped heating strip 1 is fixed more securely.

[0043] The upper side edge of the front pressing plate 5 is bent backward to form a horizontal folded edge 21 which blocks the upper front side portion of the U-shaped heating strip 1 body, thereby limiting the up and down movement of the U-shaped heating strip 1 .

[0044] The heat conductive pad 4 is made of 6061 aluminum alloy, which has good heat transfer effect, is easy to process and has low cost.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. Side-mounted external locking frame heating strip fixing device, used to fix the U-shaped heating strip horizontally on the external locking frame from front to back, characterized by: It includes a U-shaped side-mounted fixing plate, a thermal pad and a front pressure plate; The structure and size of the U-shaped side-mounted fixing plate are adapted to the front lower part of the outer locking frame. The U-shaped side-mounted fixing plate is mainly composed of a left fixing plate, a front fixing plate and a right fixing plate. The front side of the left fixing plate is fixedly connected to the upper side of the left side of the front fixing plate, and the front side of the right fixing plate is fixedly connected to the upper side of the right side of the front fixing plate. The front fixing plate is provided with fixing holes connected to the bolts on the outer locking frame. The left fixing plate is provided with a first fixing fixture for fixing and pressing the handle of the U-shaped heating strip on the left side of the outer locking frame, and the right fixing plate is provided with a second fixing fixture for fixing and pressing the right side of the U-shaped heating strip body on the right side of the outer locking frame; The front pressure plate fixes the thermal pad to the front side of the front fixing plate by screws. The front side of the U-shaped heating strip body is located between the front pressure plate and the thermal pad. The front pressure plate presses the front side of the U-shaped heating strip body tightly against the thermal pad.

2. A side-mounted external locking frame heating strip fixing device according to claim 1, characterized in that: The upper sides of the left fixing plate, the front fixing plate and the right fixing plate are flush, the lower sides of the left fixing plate are flush with the lower sides of the right fixing plate and are higher than the lower sides of the front fixing plate, and a groove for avoiding the locking rod is provided in the middle of the upper side of the front fixing plate; the front side of the left fixing plate and the upper side of the left side of the front fixing plate are integrally formed and connected by an arc transition, and the front side of the right fixing plate and the upper side of the right side of the front fixing plate are integrally formed and connected by an arc transition.

3. A side-mounted external locking frame heating strip fixing device according to claim 1, characterized in that: The first fixing fixture includes a first vertical clamping plate, the upper side of the first vertical clamping plate is tightly fitted with the left side surface of the left fixing plate and is fixedly connected to the left fixing plate by a plurality of rivets, the lower side of the first vertical clamping plate is integrally formed with an arc clamping structure adapted to the shape of the handle of the U-shaped heating strip, the open side of the arc clamping structure is set toward the lower right, and the arc clamping structure is clamped on the left side of the handle of the U-shaped heating strip to press the handle of the U-shaped heating strip against the left side surface of the outer locking frame.

4. A side-mounted external locking frame heating strip fixing device according to claim 1, characterized in that: The second fixing fixture includes a second vertical clamping plate, the upper side of the second vertical clamping plate is tightly fitted with the right side surface of the right fixing plate and is fixedly connected to the right fixing plate by a plurality of rivets, and the lower side of the second vertical clamping plate is integrally formed with a C-shaped clamping structure that is adapted to the shape of the U-shaped heating strip body, and the open side of the C-shaped clamping structure is set to the left, and the C-shaped clamping structure is clamped on the right side of the right side of the U-shaped heating strip body to press the right side of the U-shaped heating strip body against the right side surface of the outer locking frame.

5. A side-mounted external locking frame heating strip fixing device according to claim 1, characterized in that: A first screw hole for installing the screw is provided on the lower side of the front pressure plate, and a stopper for fixing the screw is provided on the lower side of the front pressure plate, and the stopper is correspondingly located below the first screw hole.

6. A side-mounted external locking frame heating strip fixing device according to claim 5, characterized in that: A convex strip is integrally formed on the lower side of the front side of the thermal pad, and a second screw hole corresponding to the front and rear of the first screw hole is opened on the convex strip. A third screw hole corresponding to the front and rear of the second screw hole is opened on the lower side of the front fixing plate. The corresponding threads of the screws are installed in the corresponding first screw hole, second screw hole and third screw hole. The front pressure plate is fixedly connected to the front side of the convex strip, and the front side of the U-shaped heating strip body is arranged above the convex strip.

7. A side-mounted external locking frame heating strip fixing device according to claim 6, characterized in that: The upper side edge of the front pressure plate is bent backward to form a horizontal folded edge blocking the upper front side portion of the U-shaped heating strip body.

8. A side-mounted external locking frame heating strip fixing device according to claim 1, characterized in that: The thermal pad is made of 6061 aluminum alloy.

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