Stably-connected chain for agricultural machinery

Abstract

The utility model relates to an agricultural machine chain stable in connection. The chain for the agricultural machine comprises a connecting chain, a connecting ring and elastic hook pieces, wherein the two ends of the connecting chain are connected with the elastic hook pieces respectively; the elastic hook piece comprises an elastic piece and a fixing piece, the fixing piece is provided with an opening, and a first arc-shaped section and a second arc-shaped section of the fixing piece are connected through a concave section. The elastic piece is arranged at the opening of the fixing piece, one end of the elastic piece is fixedly connected with the outer side of the second arc-shaped section of the fixing piece, and the other end of the elastic piece is attached to the inner side of the first arc-shaped section of the fixing piece. The chain for the agricultural machine has the advantages that the elastic hook pieces are arranged at the two ends of the connecting chain, the elastic pieces of the elastic hook pieces are thin, when the elastic pieces and the fixing pieces are closed, the fitting performance is good, the elastic pieces are not prone to being poked to be opened, and end connection is more stable when the chain is used; the first arc-shaped section and the second arc-shaped section of the fixing piece of the elastic hook piece are connected through the concave section, so that the whole fixing piece is of a pre-bending structure, deformation is not prone to occurring when the fixing piece is stressed in the using process, connection is more stable, an operator can hold the fixing piece more conveniently in the using process, and connection operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of chains, and particularly relates to an agricultural machinery chain with stable connection. Background Art

[0002] Chains are generally metal links or rings, and are mostly used for mechanical transmission and traction. Agricultural machinery chains are widely used in various agricultural machinery, such as walking tractors, rice harvesters, corn harvesters, combine harvesters, etc. They provide functions such as driving, traction and limiting for these machines, and realize the mechanized operation of the whole process of agricultural production from plowing, sowing to harvesting.

[0003] Existing agricultural machinery chains usually have a connecting chain part and spring hook parts connected to both ends of the connecting chain, and the end connection is realized through the spring hook parts and other mechanical parts. Most of the spring hook parts of existing agricultural machinery chains are integrally formed parts. As shown in the attached Figure 1 figure, the opening and closing are realized by the position change of the elastic part at the opening. However, since the spring hook part is integrally formed, the elastic part is usually thick, and the fitting property during closing is poor, and it is easy to be toggled open. The connection is not stable during use, and the fixed part of the elastic hook part is an arc-shaped part protruding outward as a whole, with poor structural strength and easy deformation, resulting in unstable connection. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an agricultural machinery chain with stable connection, which can solve the problems that the elastic part of the integrally formed spring hook part in the prior art is usually thick, the fitting property during closing is poor, it is easy to be toggled open, the connection is not stable during use, and the fixed part of the elastic hook part is an arc-shaped part protruding outward as a whole, resulting in poor structural strength, easy deformation and unstable connection.

[0005] To solve the above technical problems, the technical solution of the utility model is: including a connecting chain, a connecting ring and an elastic hook part, characterized in that: elastic hook parts are respectively connected to both ends of the connecting chain, the elastic hook parts and the connecting chain are connected through connecting rings, and the connecting chain and the connecting ring, and the connecting ring and the elastic hook part are respectively socket-connected;

[0006] The elastic hook part includes an elastic sheet and a fixing part. The fixing part has an opening. The fixing part includes a first arc section and a second arc section. One end of the first arc section and one end of the second arc section are connected through a concave section. The other end of the first arc section and the other end of the second arc section are an opening. The concave section is recessed towards the opening direction. The first arc section, the concave section and the second arc section are integrally formed;

[0007] The elastic piece is arranged at the opening of the fixing piece. One end of the elastic piece is fixedly connected to the outer side of the second arc section of the fixing piece, the other end of the elastic piece is attached to the inner side of the first arc section of the fixing piece, and there is an opening between the other end of the elastic piece and the first arc section of the fixing piece.

[0008] Further, the connecting chain is formed by a plurality of single chain links sleeved with each other, and the single chain link is oval.

[0009] Further, the end of the elastic piece far from the second arc section is bent towards the inner side of the first arc section.

[0010] Further, the elastic piece and the second arc section are fixed by a T-shaped buckle, and the T-shaped buckle is arranged through the elastic piece.

[0011] Further, the T-shaped buckle is integrally arranged with the outer side of the second arc section.

[0012] Further, the thickness of the elastic piece is less than the thickness of the fixing piece.

[0013] After adopting the above structure, the advantages of the utility model are as follows: Elastic hook pieces are respectively arranged at both ends of the connecting chain of the agricultural machinery chain. The elastic hook piece is composed of two parts, namely an elastic piece and a fixing piece. The elastic piece is relatively thin, and the elastic piece closely adheres to the inner side of the first arc section of the fixing piece. When the elastic piece and the fixing piece are closed, the fitting property is good, and it is not easily toggled open. When the chain is in use, the end connection is more stable and not easily dropped;

[0014] The first arc section and the second arc section of the fixing piece of the elastic hook piece are connected by a concave section. The setting of the concave section makes the fixing piece have a pre-bent structure as a whole, with higher structural strength, not easily deformed when stressed during use, more stable connection, and more convenient for the operator to hold by hand during use, facilitating the connection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the chain structure in the prior art;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the elastic hook piece of the utility model;

[0018] Figure 4 It is a partially enlarged schematic diagram of the structure of the elastic hook piece of the utility model. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments can enable those skilled in the art to understand the present utility model more comprehensively, but do not limit the present utility model within the scope of the described embodiments.

[0020] As Figure 2 shown, the present specific embodiment adopts the following technical solution: It includes a connecting chain 3, a connecting ring 2 and an elastic hook member 1. The connecting chain 3 is formed by sleeving a number of single chain links with each other. The single chain link is oval. Elastic hook members 1 are respectively connected to both ends of the connecting chain 3. The elastic hook member 1 is connected to the connecting chain 3 through the connecting ring 2. The connecting chain 3 and the connecting ring 2, and between the connecting ring 2 and the elastic hook member 1 are respectively sleeved connections. The connection with other mechanical components is achieved through the elastic hook member 1.

[0021] As Figure 3 shown, the elastic hook member 1 includes an elastic piece 14 and a fixing member. The fixing member has an opening 4. The fixing member includes a first arc segment 11 and a second arc segment 12. One end of the first arc segment 11 is connected to one end of the second arc segment 12 through a concave segment 13. There is an opening 4 between the other end of the first arc segment 11 and the other end of the second arc segment 12. The concave segment 13 is recessed towards the direction of the opening 4. The first arc segment 11, the concave segment 13 and the second arc segment 12 are integrally formed. The setting of the concave segment 13 makes the overall fixing member have a pre-bent structure, with higher structural strength, not easily deformed when stressed during use, more stable connection, and more convenient for the operator to hold during use, facilitating the connection operation.

[0022] The elastic piece 14 is arranged at the opening 4 of the fixing member. One end of the elastic piece 14 is fixedly connected to the outer side of the second arc segment 12 of the fixing member. The elastic piece 14 and the second arc segment 12 are fixed through a T-shaped buckle 15. The T-shaped buckle 15 is arranged through the elastic piece 14. As Figure 4 shown, the T-shaped buckle 15 is integrally arranged with the outer side of the second arc segment 12. During processing, the T-shaped buckle 15 starts as a cylindrical structure. After passing through the elastic piece 14, the cylindrical structure is knocked, so that the end of the cylindrical structure is flattened to form a T-shaped structure, and the end of the elastic piece 14 is fixedly connected to the second arc segment 12.

[0023] The other end of the elastic piece 14 is attached to the inner side of the first arc segment 11 of the fixing member. The end of the elastic piece 14 far from the second arc segment 12 is bent towards the inner side of the first arc segment 11, and there is an opening between the other end of the elastic piece 14 and the first arc segment 11 of the fixing member. By applying pressure to the elastic piece 14, the opening and closing between the elastic piece 14 and the first arc segment 11 can be realized.

[0024] The thickness of the elastic sheet 14 is smaller than that of the fixing piece. The elastic sheet 14 is relatively thin and is tightly attached to the inner side of the first arc segment 11 of the fixing piece. The elastic sheet 14 has a good fit with the fixing piece when closed and is not easily opened by being pushed. The end connection of the chain is more stable when in use and is not easily dropped.

[0025] Working principle: The agricultural machinery chain is connected to the elastic hook 1 at both ends of the connecting chain 3 through the connecting ring 2, and is connected to other agricultural machinery parts through the elastic hook 1. The elastic hook 1 is provided with two parts, namely an elastic sheet 14 and a fixing piece. The elastic sheet 14 is relatively thin, and the elastic sheet 14 is close to the inner side of the first arc segment 11 of the fixing piece. The elastic sheet 14 has a good fit with the fixing piece when closed and is not easy to be opened. The end connection of the chain is more stable and not easy to fall off during use. The elastic sheet 14 is fixedly connected to the second arc segment 12 of the fixing piece through the T-shaped buckle 15, and the connection is firm; the first arc segment 11 and the second arc segment 12 of the fixing piece of the elastic hook 1 are connected through the concave segment 13. The setting of the concave segment 13 makes the fixing piece have a pre-bent structure as a whole, with higher structural strength, not easy to deform when subjected to force during use, more stable connection, and more convenient for the operator to hold in hand during use, which facilitates the connection operation.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A chain for agricultural machinery with stable connection, characterized in that: It includes a connecting chain, a connecting ring and an elastic hook. It is characterized in that: elastic hooks are respectively connected to both ends of the connecting chain, the elastic hook and the connecting chain are connected through a connecting ring, and the connecting chain and the connecting ring, and the connecting ring and the elastic hook are respectively connected by socket connection; The elastic hook includes an elastic piece and a fixing piece. The fixing piece has an opening. The fixing piece includes a first arc section and a second arc section. One end of the first arc section is connected to one end of the second arc section through a concave section. There is an opening between the other end of the first arc section and the other end of the second arc section. The concave section is recessed towards the opening direction. The first arc section, the concave section and the second arc section are integrally formed; The elastic piece is arranged at the opening of the fixing piece. One end of the elastic piece is fixedly connected to the outside of the second arc section of the fixing piece. The other end of the elastic piece fits against the inside of the first arc section of the fixing piece, and there is an opening between the other end of the elastic piece and the first arc section of the fixing piece.

2. The chain for agricultural machinery with stable connection according to claim 1, characterized in that: The connecting chain is formed by sleeving a plurality of single chain rings with each other, and the single chain ring is oval.

3. A chain for agricultural machinery with stable connection according to claim 1, characterized in that: One end of the elastic piece far from the second arc section is bent towards the inside of the first arc section.

4. A chain for agricultural machinery with stable connection according to claim 1, characterized in that: The elastic piece and the second arc section are fixed by a T-shaped buckle, and the T-shaped buckle is arranged through the elastic piece.

5. A chain for agricultural machinery with stable connection according to claim 4, characterized in that: The T-shaped buckle is integrally arranged with the outside of the second arc section.

6. A chain for agricultural machinery with stable connection according to claim 1, characterized in that: The thickness of the elastic piece is less than the thickness of the fixing piece.

Images