Adjustable double-end bolt

Abstract

The utility model discloses an adjustable double-end bolt, and relates to the technical field of bolts. According to the technical scheme, the adjustable stud comprises a first stud, a transfer sleeve is fixedly installed on the first stud, a second stud is arranged in the transfer sleeve, a hollow hole is formed in the transfer sleeve, a first spring is installed on the outer side of the second stud, and the first spring is fixedly connected with the transfer sleeve; a rotating sleeve head is in threaded connection with the second stud, and the rotating sleeve head abuts against the first spring; the rotary sleeve head comprises a button sleeve, and a connecting block is installed below the button sleeve. The utility model aims to provide the adjustable stud bolt, which achieves the effect that the required practical length of the stud bolt can be freely adjusted.

Description

Technical Field

[0001] This utility model discloses an adjustable double-ended bolt, which relates to the field of bolt technology. Background Technology

[0002] A double-ended stud bolt is a bolt with two threaded heads, typically used in applications requiring nuts to be installed at both ends. Unlike a conventional single-ended stud bolt, during manufacturing, the threads of a double-ended stud bolt extend along its entire length, and it usually has no head or only a simple head structure. This makes double-ended stud bolts particularly suitable for special applications, such as situations requiring simultaneous fixation or connection at two locations. Both ends of a double-ended stud bolt are threaded, allowing for connection to nuts or other components. Double-ended stud bolts are widely used in the construction industry, mechanical engineering, automotive industry, electrical equipment and piping engineering, etc. Due to their double-threaded design, double-ended stud bolts are particularly suitable for connecting long objects or applications requiring fastening at both ends, such as mechanical structures and building structures.

[0003] Double-ended studs are widely used in current applications. However, the length of double-ended studs is basically fixed. When using double-ended studs for connections, it may be necessary to cut and adjust the length or to re-customize and produce the corresponding type of double-ended studs. Therefore, there is a need to provide an adjustable double-ended stud to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable double-ended bolt, which allows for free adjustment of the required length.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable double-ended bolt, comprising a first stud, characterized in that: a rotating sleeve is fixedly installed on the first stud, a second stud is disposed inside the rotating sleeve, a hollow hole is disposed in the rotating sleeve, a first spring is installed on the outside of the second stud, the first spring is fixedly connected to the rotating sleeve, a rotating sleeve is threadedly connected to the second stud, the rotating sleeve abuts against the first spring; the rotating sleeve includes a button sleeve, and a connecting block is installed below the button sleeve.

[0006] Preferably, the inner surface of the hollow hole is provided with internal threads.

[0007] Preferably, a second spring is provided inside the hollow hole, and the second spring is fixedly connected to the transfer sleeve.

[0008] Preferably, the outer side of the button sleeve is provided with an anti-slip groove.

[0009] Preferably, a washer is provided on the first stud and a washer is provided on the second stud.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By having the operator rotate the rotating sleeve into the second stud through a threaded connection, the rotating sleeve can compress the first spring to control the extension length of the second stud and the required connection length. The first spring provides the opposite elastic force and a fastening force to the structure, improving the structural strength. By rotating and screwing the second stud into the hollow hole, the operator can precisely adjust the required length of the second stud. Since the length of the first stud is fixed, the overall length of the double-ended bolt can be adjusted by adjusting the length of the second stud, thereby achieving the effect that the double-ended bolt can be freely adjusted to the required practical length. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an adjustable double-ended bolt.

[0012] Figure 2 for Figure 1 A schematic diagram of the internal structure of an adjustable double-ended bolt;

[0013] The following are the labeling elements in the figure:

[0014] 1. First stud; 2. Transition sleeve; 21. Hollow hole; 3. Rotating sleeve; 31. Button sleeve; 32. Connecting block; 4. Second stud; 5. First spring; 6. Second spring; 7. Washer. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Specific implementation examples:

[0017] like Figure 1 As shown, an adjustable double-ended bolt includes a first stud 1, a transfer sleeve 2 fixedly installed on the first stud 1, a second stud 4 disposed inside the transfer sleeve 2, a first spring 5 installed on the outside of the second stud 4, the first spring 5 being fixedly connected to the transfer sleeve 2, and a rotating sleeve 3 threadedly connected to the second stud 4, the rotating sleeve 3 abutting against the first spring 5;

[0018] In this structure, the first stud 1 and the intermediate sleeve 2 are fixedly connected and are produced as a single piece. The second stud 4, which is installed inside the intermediate sleeve 2, can move up and down inside it. The first spring 5 is fixedly connected to the intermediate sleeve 2 and is located outside the first spring 5. The operator rotates the rotating sleeve 3 into the second stud 4 through a threaded connection. The rotating sleeve 3 can compress the first spring 5 to control the extension length of the second stud 4 and the required connection length. The first spring 5 provides the opposite elastic force and provides a fastening force for the structure, thereby improving the structural strength.

[0019] like Figure 2 As shown, the transfer sleeve 2 is provided with a hollow hole 21, and the first spring 5 can move and be fixed in the hollow hole 21 to control the exposed length of the whole structure to be worked.

[0020] In actual operation, the second stud 4 needs to be fixed in the hollow hole 21 to accommodate the structural instability caused by the excessive spring size of the first spring 5. Therefore, the inner surface of the hollow hole 21 is provided with an internal thread (not shown in the figure), and the internal thread is threadedly connected to the second stud 4.

[0021] The threaded connection has a locking function. The operator can rotate the second stud 4 and screw it into the hollow hole 21 to precisely adjust the required length of the second stud 4. Since the length of the first stud 1 is fixed, the overall length of the double-ended bolt can be adjusted by adjusting the length of the second stud 4.

[0022] A second spring 6 is provided inside the hollow hole 21, and the second spring 6 is fixedly connected to the transfer sleeve 2.

[0023] The second spring 6 can adaptively retract according to the length of the second stud 4 that it rotates into, in order to provide an outward pushing force, i.e. a fastening force, so that the second stud 4 can increase the fastening force through the elastic force of the second spring 6 while being tightened, making the structure more stable.

[0024] The rotating sleeve 3 includes a button sleeve 31, and a connecting block 32 is installed below the button sleeve 31;

[0025] The connecting block 32 is used to abut against the first spring 5, but the connecting block 32 only contacts the first spring 5 and is not connected, so the rotating sleeve 3 can be rotated and tightened without being affected by the first spring 5;

[0026] The outer side of the button sleeve 31 is provided with an anti-slip groove (not shown in the figure). The anti-slip groove can increase the friction between the operator's fingers and the button sleeve 31 when turning the button sleeve 31, making it easier to turn.

[0027] A washer 7 is provided on the first stud 1, and a washer 7 is provided on the second stud 4;

[0028] Washer 7 is fitted onto the first stud 1 and the second stud 4 and its function is to connect with the nut or other components;

[0029] In summary, by rotating the rotating sleeve 3 and screwing it onto the second stud 4 via a threaded connection, the rotating sleeve 3 can compress the first spring 5 to control the extension length of the second stud 4 and the required connection length. The first spring 5 provides the opposite elastic force and a fastening force to the structure, improving its strength. By rotating and screwing the second stud 4 into the hollow hole 21, the operator can precisely adjust the required length of the second stud 4. Since the length of the first stud 1 is fixed, the overall length of the double-ended bolt can be adjusted by adjusting the length of the second stud 4, thus achieving the effect that the double-ended bolt can be freely adjusted to the required practical length.

[0030] The above description is merely a preferred embodiment of this application. The scope of protection of this application is not limited to the above embodiments. All technical solutions within this concept are within the scope of protection of this application. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this application should also be considered within the scope of protection of this application.

Claims

1. An adjustable stud bolt comprising a first stud (1), characterized in that: A transfer sleeve (2) is fixedly installed on the first stud (1). A second stud (4) is provided inside the transfer sleeve (2). A hollow hole (21) is provided in the transfer sleeve (2). A first spring (5) is installed on the outside of the second stud (4). The first spring (5) is fixedly connected to the transfer sleeve (2). A rotating sleeve (3) is threadedly connected to the second stud (4). The rotating sleeve (3) abuts against the first spring (5). The rotating sleeve (3) includes a button sleeve (31), and a connecting block (32) is installed below the button sleeve (31).

2. An adjustable stud according to claim 1, wherein: The inner surface of the hollow hole (21) is provided with an internal thread.

3. An adjustable stud according to claim 1, wherein: A second spring (6) is provided inside the hollow hole (21), and the second spring (6) is fixedly connected to the transfer sleeve (2).

4. An adjustable stud according to claim 1, wherein: The outer side of the button sleeve (31) is provided with an anti-slip groove.

5. An adjustable stud according to claim 1, wherein: A washer (7) is provided on the first stud (1), and a washer (7) is provided on the second stud (4).

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