Novel connecting handle wire structure

Abstract

The utility model discloses a novel connecting handle wire structure which comprises a handle shell, and a threaded connecting section is arranged at the bottom of the handle shell. A line body is integrally formed on the inner side of the tail frame, and a sealing structure is arranged at the top of the tail frame; the sealing cavity is formed in the threaded connection section, and the tailstock is in sealing connection with the handle shell through a sealing structure; the tail frame is sleeved with the tail shell nut which is used for being in threaded assembly with the threaded connection section so as to form axial pressure on the sealing structure. According to the novel connecting handle line structure, sealing plug sealing on an original handle line is upgraded into sealing ring sealing, the sealing ring is installed on the tail frame, the tail frame and the line body are connected into a whole through injection molding, the size precision of a groove after injection molding is far higher than the precision of the outer circle of the line body, and compression sealing is formed through the sealing ring and the inner surface of the handle; and meanwhile, due to the integrated design, the connection strength of the sealing structure can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo vehicles, in particular to a novel connecting handle line structure. Background Art

[0002] Freight vehicles, generally referred to as trucks or trucks, include dump trucks, tractor trucks, off-road trucks for off-road and roadless areas, and various vehicles built for special needs. Refers to vehicles that are mainly used to transport goods, and sometimes also refers to vehicles that can tow other vehicles, belonging to the category of commercial vehicles. Generally, they can be divided into heavy and light according to the weight of the vehicle. Most trucks use diesel engines as their power source, but some light trucks use gasoline, LPG or natural gas.

[0003] In trucks, the connection and use of handle wires are usually involved. The handle wires are used to connect the electrical equipment of the entire vehicle and to start and stop the equipment. The structure is generally divided into a switch part, a handle part, a connection part, a wire body, etc., among which the sealing performance after the wire body is connected to the handle is an important feature.

[0004] At present, the sealing structure adopts a sealing plug installed on the wire body, and a seal is formed between the sealing plug and the outer surface of the wire body and the inner surface of the handle by compressing the sealing plug. Since the roundness and size of the wire body fluctuate greatly and the size of the sealing plug is constant, when the outer diameter of the wire body is out of round or too small, the seal will fail, causing external liquid to penetrate, resulting in failure problems such as short circuit of the electrical switch. Therefore, a new type of connecting handle wire structure is proposed. Utility Model Content

[0005] Based on this, it is necessary to provide a new type of handle line connection structure and design a tail frame structure to connect the handle and the line body in response to the above-mentioned technical problems. The tail frame adopts an injection molding structure and adds a sealing ring groove to the injection molding body. While meeting the performance requirements, it can increase the connection strength between the product handle and the line body and improve the durability of the product.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A novel connecting handle line structure, comprising:

[0008] A handle housing, wherein a threaded connection section is provided at the bottom of the handle housing;

[0009] The tail frame has a wired body integrally formed on the inner side and a sealing structure is provided on the top of the tail frame;

[0010] A sealing cavity, which is arranged in the threaded connection section for the tailstock to be sealedly connected to the handle housing through a sealing structure;

[0011] The tail housing nut is sleeved on the tail frame and is used for threaded assembly with the threaded connection section to form axial pressure on the sealing structure.

[0012] Furthermore, the sealed cavity includes an inner cavity and an outer cavity, and the inner cavity and the outer cavity are connected.

[0013] Further, the sealing structure includes a conical platform connected to the top of the tailstock and a sealing plug connected above the conical platform;

[0014] The sealing plug is adapted to the size of the outer cavity.

[0015] Furthermore, a groove is formed in an annular manner on the sealing plug, and a sealing ring is sleeved in the groove;

[0016] The sealing plug is connected to the outer cavity through a sealing ring to form a contact sealing connection.

[0017] Furthermore, the side wall of the tail shell nut has a thread groove for forming a threaded connection with the threaded connection section, and the bottom of the tail shell nut forms a limiting groove, and the limiting groove is adapted to the shape of the conical platform.

[0018] Furthermore, anti-skid ridges are distributed in an annular manner on the outer side of the tail shell nut.

[0019] Furthermore, an elastic support pad is fixed to the top of the tail shell nut, and gaps are formed between the plurality of elastic support pads.

[0020] Furthermore, a limiting structure is provided on the handle housing for cooperating with the notch to lock the tail housing nut.

[0021] Furthermore, the limiting structure includes sliding grooves opened on both sides of the handle housing and a sliding ring slidably sleeved on the outside of the handle housing;

[0022] Wherein, the sliding ring has a sliding block extending toward the sliding groove, and a limiting block adapted to the notch is fixed at the bottom of the sliding block;

[0023] The limit block can slide in the height direction of the handle housing by extending the slider.

[0024] Furthermore, the sliding block is connected to a spring fixed to the top wall of the sliding groove.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model provides a novel connecting handle line structure, which upgrades the sealing plug on the original handle line to a sealing ring. The sealing ring is installed on the tail frame, and the tail frame and the line body are connected and integrated by injection molding. The dimensional accuracy of the groove after injection molding is much higher than the outer circle accuracy of the line body. A compression seal is formed between the sealing ring and the inner surface of the handle to improve the sealing performance. At the same time, the integrated design can also improve its connection strength.

[0027] At the same time, after the tail shell threaded cap is tightened to form an interference seal on the sealing structure, the limit block can be placed in the corresponding notch to limit the tail shell threaded cap, thereby avoiding failure of the sealing structure due to the autonomous sliding of the tail shell threaded cap during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a novel connecting handle wire structure provided by the utility model;

[0029] Figure 2 A schematic diagram of the disassembled structure of the novel connecting handle wire structure provided by the utility model;

[0030] Figure 3 A schematic cross-sectional view of a novel connecting handle wire structure provided by the utility model;

[0031] Figure 4 The utility model provides a novel connection handle wire structure Figure 3 The enlarged structural diagram at A in the middle;

[0032] Figure 5 A schematic diagram of the internal structure of the tailstock of the novel connection handle wire structure provided by the utility model;

[0033] Figure 6 A schematic diagram of a limiting structure of a novel connecting handle wire structure provided by the utility model;

[0034] Figure 7 The utility model provides a novel connection handle wire structure Figure 6 The enlarged structural diagram at B in the middle;

[0035] Figure 8 The limiting structure of the novel connecting handle line structure provided by the utility model is a state structure schematic diagram.

[0036] The markings in the figure are as follows:

[0037] Handle housing 1, threaded connection section 11, sealing chamber 12;

[0038] Inner cavity 120, outer cavity 121,

[0039] Tailstock 2;

[0040] Line body 3;

[0041] Sealing structure 4, conical platform 41, sealing plug 42, groove 43, sealing ring 44;

[0042] Tail shell nut 5, limiting groove 51, anti-skid ridge 52, elastic support pad 53, notch 54, thread groove 55;

[0043] The limiting structure 6 , the sliding groove 61 , the sliding ring 62 , the sliding block 63 , the limiting block 64 , and the spring 65 . DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0045] As shown in the background technology, the current sealing structure adopts a sealing plug installed on the wire body, and a seal is formed between the sealing plug and the outer surface of the wire body and the inner surface of the handle by compressing the sealing plug. Since the roundness and size of the wire body fluctuate greatly and the size of the sealing plug is fixed, when the outer diameter of the wire body is out of round or too small, the seal will fail, thereby causing external liquid to penetrate, resulting in failure problems such as short circuit of the electrical switch.

[0046] In order to solve this technical problem, the utility model provides a novel handle line connection structure, which is applied to the sealing of the handle line.

[0047] Specifically, please refer to Figure 1-Figure 8 , the new connection handle line structure specifically includes:

[0048] A handle housing 1, wherein a threaded connection section 11 is provided at the bottom of the handle housing 1;

[0049] A tail frame 2, a wire body 3 is integrally formed on the inner side thereof, and a sealing structure 4 is provided on the top of the tail frame 2;

[0050] A sealing cavity 12 is provided in the threaded connection section 11 for sealingly connecting the tail frame 2 with the handle housing 1 through the sealing structure 4;

[0051] The tail housing nut 5 is sleeved on the tail frame 2 and is used for threaded assembly with the threaded connection section 11 to form axial pressure on the sealing structure 4 .

[0052] The utility model provides a novel connecting handle line structure, which upgrades the sealing plug on the original handle line to a sealing ring 44. The sealing ring 44 is installed on the tail frame 2. The tail frame 2 and the line body 3 are connected and integrated by injection molding. After injection molding, the dimensional accuracy of the groove 43 is much higher than the outer circle accuracy of the line body 3. A compression seal is formed between the sealing ring 44 and the inner surface of the handle shell 1 to improve the sealing performance. At the same time, the integrated design can also improve its connection strength.

[0053] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0054] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0056] Please refer to Figure 1-Figure 5 A new type of handle wire connection structure, a handle shell 1, a threaded connection section 11 is provided at the bottom of the handle shell 1; a tail frame 2, a wire body 3 is integrally formed on the inner side, and a sealing structure 4 is provided on the top of the tail frame 2; a sealing cavity 12 is provided in the threaded connection section 11 for the tail frame 2 to be sealed and connected with the handle shell 1 through the sealing structure 4; a tail shell nut 5 is sleeved on the tail frame 2 and used for threaded assembly with the threaded connection section 11 to form axial pressure on the sealing structure 4.

[0057] Please refer to Figure 5 , 6 The sealed cavity 12 includes an inner cavity 120 and an outer cavity 121, and the inner cavity 120 and the outer cavity 121 are connected;

[0058] The sealing structure 4 includes a conical platform 41 connected to the top of the tailstock 2 and a sealing plug 42 connected to the top of the conical platform 41;

[0059] The sealing plug 42 is adapted to the size of the outer cavity 121;

[0060] A groove 43 is formed in an annular shape on the sealing plug 42, and a sealing ring 44 is sleeved in the groove 43. The sealing ring 44 is sleeved on one end of the sealing plug 42, and finally the sealing ring 44 is slid into the corresponding groove 43 to form a limit position, which is convenient for subsequent plugging.

[0061] The sealing plug 42 forms a contact sealing connection with the outer cavity 121 through the sealing ring 44 .

[0062] The new type of connecting handle wire structure provided in this embodiment is used for actual application and assembly. The wire body 3 and the tail frame 2 which are formed by injection molding are placed in the sealing cavity 12 through the sealing structure 4 at the top. After placement, the sealing plug 42 is located in the outer cavity 121, and the wire body 3 connected thereto extends upward through the inner cavity 120. At this time, the sealing ring 44 on the sealing plug 42 forms a conflict with the outer cavity 121. The sealing ring 44 subjected to the conflicting force will form a conflict between the groove 43 and the outer cavity 121 to meet the sealing performance requirements. Then the tail shell nut 5 is rotated on the surface of the threaded connection section 11 to complete the limiting of the sealing structure 4.

[0063] The novel connecting handle wire structure provided in Example 1 is further optimized. Specifically, Figure 3 , Figure 4 As shown, the side wall of the tail shell nut 5 has a thread groove 55 for forming a threaded connection with the threaded connection section 11, and the bottom of the tail shell nut 5 is formed with a limiting groove 51, and the limiting groove 51 is adapted to the shape of the conical platform 41;

[0064] Through the above structural design, after the sealing structure 4 is installed, the tail shell nut 5 is rotated to make the thread groove 55 thereon contact with the corresponding threaded connection section 11, and then the tail shell nut 5 is rotated so that it can be rotated on the threaded connection section 11. During the process of the tail shell nut 5 continuously rotating and moving upward, the limit groove 51 therein will form a conflict with the conical platform 41, and the conical platform 41 subjected to the conflicting force will act on the sealing plug 42, so that the sealing in the outer cavity 121 is more stable, and it is not easy to slide off and affect the subsequent sealing.

[0065] As a further optimization of this embodiment, the outer side of the tail shell nut 5 is annularly distributed with anti-slip ridges 52, and there are multiple anti-slip ridges 52. The multiple anti-slip ridges 52 are annularly distributed at equal intervals on the outer side of the tail shell nut 5. Through the distribution of multiple tail shell nuts 5, when the operator rotates, the friction between the tail shell nut 5 and the operator's hand is increased, making it more convenient to rotate and subsequently disassemble.

[0066] The novel connecting handle wire structure provided in Example 1 or 2 is further optimized, such as Figure 1-Figure 7 As shown, an elastic support pad 53 is fixed to the top of the tail shell nut 5, and a gap 54 is formed between the plurality of elastic support pads 53;

[0067] In Example 2, when the tail shell nut 5 is about to rotate into place, the elastic support pad 53 at the top of the tail shell nut 5 which continues to rotate will come into contact with the corresponding bottom of the handle shell 1 above. Since the elastic support pad 53 has a certain elastic effect, it can undergo a certain deformation when in contact to allow the tail shell nut 5 to continue to rotate. When the tail shell nut 5 rotates, the elastic support pad 53 deforms and stops rotating. At this time, the deformed elastic support pad 53 will give a certain resistance force to the handle shell 1. Therefore, the resistance to rotating the tail shell nut 5 is increased through the mutual resistance between the handle shell 1 and the elastic support pad 53, which reduces the situation of the tail shell nut 5 rotating and loosening by itself during subsequent use, and further improves the fixing effect of the tail shell nut 5.

[0068] A limiting structure 6 is provided on the handle housing 1 for cooperating with the notch 54 to lock the tail shell nut 5. Through the design of the limiting structure 6, the tail shell nut 5 can be further limited. The specific implementation scheme is detailed in the subsequent embodiments.

[0069] The new connection handle wire structure provided in Example 3 is further optimized, such as Figure 6 , Figure 7 and Figure 8 As shown, the limiting structure 6 includes a slide groove 61 opened on both sides of the handle housing 1 and a sliding ring 62 slidably sleeved on the outside of the handle housing 1, wherein the sliding ring 62 has a slider 63 extending toward the slide groove 61, and a limiting block 64 adapted to the notch 54 is fixed at the bottom of the slider 63;

[0070] The limit block 64 can slide in the height direction of the handle housing 1 through the slider 63;

[0071] The slider 63 is connected with a spring 65 fixed to the top wall of the slide slot 61;

[0072] In the natural state, under the action of the spring 65, the slider 63 thereon is in a state of extending outward. During the rotation of the tail shell nut 5 in Example 3, the operator needs to manually push the sliding ring 62 so that it drives the limit block 64 to retract into the interior of the handle housing 1 through the slider 63 thereon so as not to affect the movement of the tail shell nut 5. Then, when the tail shell nut 5 is rotated into place, the notch 54 on the tail shell nut 55 corresponds to the position of the limit block 64. Then the sliding ring 62 is loosened. At this time, through the action of the spring 65, the slider 63 drives the limit block 64 to slide out of the outside of the hand housing 1 and be placed in the notch 54, forming a stable limit for the tail shell nut 5, ensuring that the tail shell nut 5 will not loosen, thereby ensuring the stable sealing state of the sealing structure 4.

[0073] The use process of the new connecting handle line structure provided by the utility model is as follows: the sealing structure 4 on the tail frame 2 and the line body 3 formed by injection molding is placed in the sealing cavity 12, and then the sliding ring 62 is pushed upward and the tail shell nut 5 is rotated so that the tail shell nut 5 is rotated and tightened on the threaded connection section 11. When the tail shell nut 5 is rotated into place, the sliding ring 62 is opened, and the limit block 64 is inserted into the corresponding notch 54 by the force of the spring 65 to form a limiting effect. At this time, the interference between the sealing ring 44 and the outer cavity 121 forms a blocking effect on the handle connection line. At the same time, due to the groove 43 directly opened on the injection molding, the connection strength between the handle and the line body is improved, and the tail shell nut 5 after rotation and tightening can form a stable axial pressure, so as to better meet the sealing performance under various working conditions.

[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A new type of connecting handle wire structure, characterized in that: It includes: A handle housing (1), wherein a threaded connection section (11) is provided at the bottom of the handle housing (1); A tail frame (2), the inner side of which is integrally formed with a wire body (3), and a sealing structure (4) is provided on the top of the tail frame (2); A sealing cavity (12) is provided in the threaded connection section (11) for sealingly connecting the tail frame (2) with the handle housing (1) via the sealing structure (4); The tail housing nut (5) is sleeved on the tail frame (2) and is used for threaded assembly with the threaded connection section (11) to form axial pressure resistance to the sealing structure (4).

2. The novel connecting handle wire structure according to claim 1 is characterized in that: The sealed cavity (12) comprises an inner cavity (120) and an outer cavity (121), and the inner cavity (120) and the outer cavity (121) are connected.

3. The novel connecting handle wire structure according to claim 2 is characterized in that: The sealing structure (4) comprises a conical platform (41) connected to the top of the tail frame (2) and a sealing plug (42) connected above the conical platform (41); The sealing plug (42) is adapted to the size of the outer cavity (121).

4. The novel connecting handle wire structure according to claim 3 is characterized in that: The sealing plug (42) is provided with an annular groove (43), and a sealing ring (44) is sleeved in the groove (43); The sealing plug (42) forms a contact sealing connection with the outer cavity (121) via a sealing ring (44).

5. The novel connecting handle wire structure according to claim 3 is characterized in that: The side wall of the tail shell nut (5) has a thread groove (55) for forming a threaded connection with the threaded connection section (11), and the bottom of the tail shell nut (5) forms a limiting groove (51), and the limiting groove (51) is adapted to the shape of the conical platform (41).

6. The novel connecting handle wire structure according to claim 1 is characterized in that: The outer side of the tail shell nut (5) is provided with anti-slip ridges (52) distributed in an annular manner.

7. The novel connecting handle wire structure according to claim 1 is characterized in that: An elastic support pad (53) is fixed to the top of the tail shell nut (5), and gaps (54) are formed between a plurality of the elastic support pads (53).

8. The novel connecting handle wire structure according to claim 7 is characterized in that: The handle housing (1) is provided with a limiting structure (6) for cooperating with the notch (54) to lock the tail housing nut (5).

9. The novel connecting handle wire structure according to claim 8 is characterized in that: The limiting structure (6) comprises sliding grooves (61) provided on both sides of the handle housing (1) and a sliding ring (62) slidably sleeved on the outside of the handle housing (1); The sliding ring (62) has a sliding block (63) extending toward the sliding groove (61), and a limiting block (64) adapted to the notch (54) is fixed at the bottom of the sliding block (63); The limit block (64) can slide in the height direction of the handle housing (1) via the slider (63).

10. The novel connecting handle wire structure according to claim 9 is characterized in that: The sliding block (63) is connected to a spring (65) fixed to the top wall of the sliding groove (61).

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