Adjustable luggage rack universal clamp

Abstract

A universal clamp for an adjustable luggage rack includes a clamp chassis, a clamp bracket, a clamp connection surface, an adjustable connector, a mounting hole, and a connecting rod. The clamp chassis is provided with a clamp bracket, and the top of the clamp bracket is provided with a clamp connection surface. The clamp chassis, the clamp bracket and the clamp connection surface are fixedly welded, and the left and right sides of the clamp connection surface are symmetrically provided with adjustable connectors. The bottom of the adjustable connector is directly connected to the clamp bracket through a thread, and the side of the adjustable connector close to the top is connected to one end of the connecting rod through a thread, and the other end of the connecting rod is connected to the clamp bracket through a thread, and the adjustable connector is provided with a mounting hole. The advantages of the present invention are: it can better cooperate with the installation of luggage racks of different models and different widths, greatly saving the cost of corresponding design and processing of the clamp, the structure is reliable, the installation effect is stable, it can simulate the long-term durability test of rail transportation under load, and can also withstand destructive impact and static tests.

Description

Technical Field

[0001] The invention relates to the technical field of test equipment, and in particular to a universal clamp for an adjustable luggage rack. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. The most typical rail transit is the railway system composed of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has shown more and more types, not only covering long-distance land transportation, but also widely used in medium and short-distance urban public transportation.

[0003] There are many manufacturers in the domestic rail transit industry. Each manufacturer will produce different types of luggage racks according to different project requirements at home and abroad. It is impossible to install the same set of fixtures with luggage racks of different models and widths, which greatly increases the cost of corresponding design and processing fixtures. In addition, the existing luggage rack fixture structure has poor reliability and unstable installation effect. It cannot simulate the long-term durability test of rail transportation under load, as well as destructive impact and static tests. Summary of the invention

[0004] Based on the above technical problems, the present invention provides a universal clamp for an adjustable luggage rack, comprising a clamp chassis, a clamp bracket, a clamp connecting surface, an adjustable connecting piece, a mounting hole, and a connecting rod, wherein the clamp chassis is provided with a clamp bracket, the top of the clamp bracket is provided with a clamp connecting surface, the clamp chassis, the clamp bracket and the clamp connecting surface are fixedly welded, and adjustable connecting pieces are symmetrically provided on the left and right sides of the clamp connecting surface, the bottom of the adjustable connecting piece is directly connected to the clamp bracket through a thread, the side of the adjustable connecting piece close to the top is connected to one end of the connecting rod through a thread, the other end of the connecting rod is connected to the clamp bracket through a thread, and the adjustable connecting piece is provided with a mounting hole.

[0005] Furthermore, the clamp bracket is composed of vertical poles, cross beams, side frames, and reinforcing rods. There are two vertical poles, which are symmetrical on the left and right and vertically arranged in the middle positions on both sides of the clamp chassis. There are two cross beams, which are parallel to each other and horizontally arranged to connect the two vertical poles. The two ends of the cross beams extend outward for a distance respectively. The top of the side frame is connected to the end point of the cross beam, and the bottom is connected to the clamp chassis. The reinforcing rod is located at the opposite position of the side frame to realize the connection between the clamp chassis and the cross beam.

[0006] Furthermore, the fixture chassis is a rectangular frame structure.

[0007] Furthermore, the number of mounting holes on the adjustable connecting member is N, where N≥2.

[0008] Furthermore, the fixture chassis and fixture bracket are both welded with hollow square steel.

[0009] The beneficial effects of the present invention are:

[0010] 1. The movable design of the connection surface between the adjustable connector and the fixture can better match the installation of luggage racks of different models and widths, greatly saving the cost of corresponding design and processing fixtures;

[0011] 2. The present invention has a reliable structure and a stable installation effect. It can simulate the long-term durability test of rail transportation under load, and can also withstand destructive impact and static tests;

[0012] 3. The overall mass of the present invention is small, and the natural frequency is relatively large, which meets the requirements of the luggage rack test and can effectively avoid damage to the product caused by resonance between the product and the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main structure diagram of the present invention.

[0014] As shown in the figure, the clamp chassis-1, the clamp bracket-2, the vertical pole-21, the cross beam-22, the side frame-23, the reinforcing rod-24, the clamp connecting surface-3, the adjustable connecting part-4, the mounting hole-5, and the connecting rod-6. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings: The present invention is a universal clamp for an adjustable luggage rack, comprising a clamp chassis 1, a clamp bracket 2, a clamp connecting surface 3, an adjustable connecting piece 4, a mounting hole 5, and a connecting rod 6. The clamp chassis 1 is provided with a clamp bracket 2, and the top of the clamp bracket 2 is provided with a clamp connecting surface 3. The clamp chassis 1, the clamp bracket 2 and the clamp connecting surface 3 are fixedly welded, and the left and right sides of the clamp connecting surface 3 are symmetrically provided with adjustable connecting pieces 4. The bottom of the adjustable connecting piece 4 is directly connected to the clamp bracket 2 by a thread, and the side of the adjustable connecting piece 4 close to the top is connected to one end of the connecting rod 6 by a thread, and the other end of the connecting rod 6 is connected to the clamp bracket 2 by a thread, and the adjustable connecting piece 4 is provided with a mounting hole 5.

[0016] Furthermore, the clamp bracket 2 is composed of a vertical pole 21, a horizontal beam 22, a side frame 23, and a reinforcing rod 24. The vertical poles 21 are two, which are symmetrical and vertically arranged in the middle position on both sides of the clamp chassis 1. The horizontal beams 22 are two, which are parallel to each other and horizontally arranged to connect the two vertical poles 21. The two ends of the horizontal beam 22 extend outward for a distance respectively. The top of the side frame 23 is connected to the end point of the horizontal beam 22, and the bottom is connected to the clamp chassis 1. The reinforcing rod 24 is located at the opposite position of the side frame 23 to realize the connection between the clamp chassis 1 and the horizontal beam 22.

[0017] Furthermore, the fixture chassis 1 is a rectangular frame structure.

[0018] Furthermore, the number of the mounting holes 5 on the adjustable connecting member 4 is N, where N≥2.

[0019] Furthermore, the clamp chassis 1 and the clamp bracket 2 are both welded with hollow square steel.

[0020] Working principle: The clamp chassis 1, the clamp bracket 2, and the clamp connecting surface 3 are properly welded to form the main part of the clamp. During the installation process, the luggage rack and the adjustable connecting piece 4 are first fastened with screws, and the width of the adjustable connecting piece 4 is adjusted so that it can better match the installation of luggage racks of different models and widths, and then connected to the clamp connecting surface 3 with screws. After installation, the long-term durability test simulating rail transportation can be completed under a load of 1000N per meter, avoiding product test failures caused by clamp problems.

[0021] In the frequency detection test, the present invention has very good transmissibility, and the fixture frequency does not affect the test frequency detection of the luggage rack.

[0022] Its structure is also very reliable in destructive impact tests and static tests. There is no deformation of the fixture due to external forces, which affects the test results of the elastic variables of the luggage rack.

[0023] The above description is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the scope of protection of the present invention.

Claims

1. An adjustable luggage rack universal clamp, characterized in that: The clamp comprises a clamp chassis, a clamp bracket, a clamp connection surface, an adjustable connecting piece, a mounting hole, and a connecting rod. The clamp chassis is provided with a clamp bracket, the top of the clamp bracket is provided with a clamp connection surface, the clamp chassis, the clamp bracket and the clamp connection surface are fixedly welded, the left and right sides of the clamp connection surface are symmetrically provided with adjustable connecting pieces, the bottom of the adjustable connecting piece is directly connected to the clamp bracket through a thread, the side of the adjustable connecting piece close to the top is connected to one end of the connecting rod through a thread, and the other end of the connecting rod is connected to the clamp bracket through a thread , the adjustable connecting piece is provided with a mounting hole; the clamp bracket is composed of a vertical pole, a horizontal beam, a side frame, and a reinforcing rod. The vertical poles are 2, which are symmetrical and vertically arranged in the middle position on both sides of the clamp chassis. The horizontal beams are 2, which are parallel to each other and horizontally arranged to connect the two vertical poles. The two ends of the horizontal beam extend outward for a distance respectively. The top of the side frame is connected to the end point of the horizontal beam, and the bottom is connected to the clamp chassis. The reinforcing rod is located at the opposite position of the side frame to realize the connection between the clamp chassis and the horizontal beam; the clamp chassis is a rectangular frame structure.

2. The universal clamp for an adjustable luggage rack according to claim 1, characterized in that: The number of mounting holes on the adjustable connecting piece is N, where N≥2.

3. The universal clamp for an adjustable luggage rack according to claim 1, characterized in that: The clamp chassis and the clamp bracket are both welded with hollow square steel.

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