Chest expander fixing device and electronic chest expander with height convenient to adjust

Abstract

The utility model relates to the technical field of chest expanders, and discloses a chest expander fixing device and an electronic chest expander with the height convenient to adjust. The utility model provides a chest expander fixing device which comprises a supporting piece used for fixing a chest expander, a jacking piece used for fixing the supporting piece and provided with threads, and an adjusting device. The jacking piece is movably connected with the supporting piece in a sleeved mode through threads. The supporting piece is fixed between the two fixing points by extending the jacking piece; the adjusting device is used for adjusting and keeping the total length of the jacking piece and the supporting piece unchanged. According to the chest expander fixing device provided by the utility model, under the matching of the adjusting device, the supporting piece is clamped between two wall surfaces, such as between an indoor roof and a floor, through the jacking piece, so that a stable fixing point is provided for the chest expander, and the chest expander fixing device can be quickly assembled and disassembled and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, in particular to a tensioner fixing device and an electronic tensioner with adjustable height. Background Technique

[0002] At present, as a new fitness product, the tensioner is loved by consumers for its advantages of being light and portable, and being able to exercise various parts of the body at any time.

[0003] Chinese Patent No. 2018213129692 discloses an electronic tensioner and a fitness equipment with the electronic tensioner. The electronic tensioner includes a handle, a wire, a wire winding wheel hub and a torque output mechanism; the wire is wound around the outer peripheral surface of the wire winding wheel hub, and both ends of the wire are respectively fixedly connected to the handle and the wire winding wheel hub; the wire winding wheel hub is fixed on the output shaft of the torque output mechanism; the torque output by the torque output mechanism is controllable.

[0004] Although the above technical solution provides an electronic tensioner, it does not involve the problem of how to fix the tensioner during actual use. And because the electronic tensioner is relatively small in size and cannot provide enough fixing force by itself, when the user exercises indoors, how to effectively fix the electronic tensioner is a problem that must be faced.

[0005] Furthermore, due to the different heights, body types and exercise habits of users, and even the different exercise needs of the same user at different times, an electronic tensioner that can adjust the fixing height of the tensioner at any time is needed. Summary of the Utility Model

[0006] Aiming at the above problems or one of the above problems, the first object of the utility model is to provide a tensioner fixing device that can provide a stable tensioner fixing point indoors.

[0007] Aiming at the above problems or one of the above problems, the second object of the utility model is to provide a tensioner fixing device and an electronic tensioner with adjustable height, which are provided with a support member and a lifting member, so that the total length of the support member and the lifting member is adjustable, and a long-arm abutting structure will be formed after the support member and the lifting member are connected, which is convenient for clamping between two fixed objects, so it can be applied to various scenarios, is convenient for quickly fixing the tensioner, has a simple and practical structure, is convenient for production and manufacturing, and is easy to implement.

[0008] In view of the above problems or one of the above problems, the third object of the present utility model is to provide a tensioner fixing device and an electronic tensioner that is convenient for adjusting the height. A support member is provided to fix the main body of the tensioner, which is convenient for flexibly adjusting the fixing height of the main body of the tensioner. At the same time, the height of the main body of the tensioner can be further adjusted by means of the assembly relationship between the support member and the jacking member.

[0009] To achieve one of the above objects, the first technical solution of the present utility model is:

[0010] A tensioner fixing device includes a support member for fixing the tensioner, a jacking member for fixing the support member and having a thread, and an adjusting device;

[0011] The jacking member is movably sleeved with the support member through a thread;

[0012] The support member is fixed between two fixed points by extending the jacking member;

[0013] The adjusting device is used to adjust and maintain the total length of the jacking member and the support member unchanged.

[0014] As a preferred technical measure: The jacking member is directly rotationally connected to the support member through a thread, and the adjusting device includes an adjusting nut adapted to the jacking member;

[0015] When it is necessary to fix the support member, rotate the adjusting nut so that it abuts against the support member.

[0016] As a preferred technical measure: The jacking member is threadedly connected to the support member through the adjusting device; the adjusting device includes a buckle rotatably connected to the support member, and the end of the buckle is provided with a thread adapted to the jacking member and abuts against the jacking member;

[0017] When it is necessary to fix the support member, rotate the jacking member;

[0018] When it is necessary to loosen the support member, rotate the buckle so that the end thereof is disengaged from contact with the jacking member. The end of the buckle is provided with a thread adapted to the jacking member. When the end of the buckle abuts against the jacking member, the jacking member and the support member form a threaded connection. By rotating the jacking member, the total length of the jacking member and the support member can be changed, and then the support member can be fixed between two walls to provide a fixed point for the tensioner. When it is necessary to disassemble the support device, press the other end of the buckle to make it rotate, and the end of the buckle is disengaged from contact with the jacking member. The jacking member and the support member become movably sleeved, and the jacking member can be retracted into the support member, that is, the total length of the jacking member and the support member is quickly changed, realizing quick disassembly.

[0019] As a preferred technical measure: The jacking member is directly threadedly connected to the support member;

[0020] The adjusting device includes a telescopic rod sleeved on the jacking member, a handle rotatably connected to the jacking member, and a connecting rod connecting the telescopic rod and the handle. The telescopic rod is controlled to extend and retract by rotating the handle; when it is necessary to fix the support member, rotate the handle to make the telescopic rod in the extended limit position and rotate the jacking member;

[0021] When it is necessary to loosen the support member, rotate the handle to make the telescopic rod contract. In this solution, the inner ring of the support member is provided with a thread adapted to the jacking member, and the jacking member and the support member are directly connected by a thread. Then, rotating the jacking member can adjust the total length of the support member and the jacking member. Moreover, a telescopic rod is arranged at the end of the jacking member, and it forms a link mechanism with the handle and the connecting rod. When the telescopic rod is in the extended limit position, the link mechanism is in its dead point position, so as to realize quickly fixing the jacking member and the support member between two walls. When it is necessary to disassemble the fixing device, only by rotating the handle to destroy the dead point position of the link mechanism can quick disassembly be realized. Then, the threaded connection between the jacking member and the support member realizes the fine adjustment of the total length of the two, and the link mechanism realizes the large-scale rough adjustment of the jacking member and the support member.

[0022] As a preferred technical measure: support discs are provided at both the end of the jacking member and the end of the support member. Support discs are arranged at both ends to make the whole support device more stable and reduce the damage to the wall surface. A leg press frame is provided to facilitate sitting or squatting exercises and provide a reasonable force application point for the user.

[0023] As a preferred technical measure: the support member is a round rod, and a fastening hoop for fixing the tensioner and a wrench for adjusting the tightness of the fastening hoop are provided on the support member. The tensioner is fixed at different positions on the support member through the fastening hoop;

[0024] Or, the support member is a square rod, and a fixing seat for fixing the tensioner and a fixing bolt are provided on the support member. Fixing holes adapted to the fixing bolt are provided on the fixing seat and the support member; the tensioner is fixed at different positions on the support member through the cooperation of the fixing bolt and the fixing hole. When the support member is a round rod, the tensioner can be fixed at different positions on the support member through the cooperation of the fastening hoop and the wrench; when the support member is a square rod, the tensioner can also be fixed at different positions on the support member through the cooperation of the fixing bolt and the fixing hole.

[0025] As a preferred technical measure: a locknut is provided on the support member;

[0026] When it is necessary to control the non-rotation of the jacking member, tighten the anti-loosening bolt so that it abuts against the jacking member; when it is necessary to rotate the jacking member and then remove the support member, loosen the anti-loosening bolt so that it disengages from the jacking member.

[0027] To prevent rotation and loosening between the support member and the jacking member during the user's exercise, an anti-loosening bolt is provided on the support member. After the fixing device is fixed, tighten the anti-loosening bolt so that it abuts against the jacking member, thereby playing a role in preventing loosening.

[0028] To achieve one of the above purposes, the second technical solution of the present invention is:

[0029] A fixing device for a tensioner, comprising a support member for fixing the main body of the tensioner and a jacking member for adjusting the position of the support member;

[0030] One of the jacking member and the support member is provided with a screw rod, and the other is provided with a threaded cavity;

[0031] The screw rod is screwed into the threaded cavity and can be screwed in and out of the threaded cavity to adjust the total length of the support member and the jacking member, so as to form an adjustable-length long-arm abutting structure.

[0032] Through continuous exploration and testing, the present invention is provided with a support member and a jacking member, so that the total length of the support member and the jacking member is adjustable, and a long-arm abutting structure will be formed after the support member and the jacking member are connected, which is convenient for clamping between two fixed objects. Therefore, it can be applied to various scenarios, facilitating the rapid fixing of the tensioner, with a simple and practical structure, convenient for production and manufacturing, and easy to implement.

[0033] Furthermore, by applying the adjustable-length long-arm abutting structure of the present invention, through the screwing fit of the jacking member and the support member, the main body of the electronic tensioner can be clamped between two fixed objects indoors or outdoors, such as between the roof and the floor indoors, or between two walls inside or outside the house, or between two door frames, or between two big trees, thereby providing a stable fixing point for the tensioner, and enabling rapid installation and disassembly, which is convenient to use and easy to promote.

[0034] Furthermore, the present invention is provided with a support member for fixing the main body of the tensioner, which is convenient for flexibly adjusting the fixing height of the main body of the tensioner. At the same time, the height of the main body of the tensioner can be further adjusted by means of the assembly relationship between the support member and the jacking member.

[0035] As a preferred technical measure:

[0036] The support member is a tensioner housing or a rod-shaped structure or a block-shaped structure or an arc-shaped structure, and a threaded cavity is provided therein;

[0037] Or / and, the jacking member is in a rod shape, a block shape or an arc shape, and is provided with a screw rod;

[0038] Or / and, a support plate is arranged at one end of the support member away from the jacking member; to avoid damaging the roof, wall or other fixtures.

[0039] Or / and, a support plate is arranged at one end of the jacking member away from the support member; to avoid damaging the roof, wall or other fixtures.

[0040] The support plate is a rubber plate with a suction cavity or a sheet structure with a rubber pad, and its cross-section is square, circular, arc-shaped, animal-shaped or plant-shaped;

[0041] Or / and, the support member and the jacking member are respectively provided with a telescopic structure, and the total length of the telescopic structure when unfolded is A; A < 3 meters, so as to be applicable to various scenarios.

[0042] To achieve one of the above purposes, the third technical solution of the present invention is:

[0043] An electronic tensioner that is convenient to adjust the height, including the above-mentioned tensioner fixing device.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0045] A tensioner fixing device provided by the present invention, with the cooperation of the adjusting device, the support member is clamped between two walls through the jacking member, for example, between the roof and the floor in a room, thereby providing a stable fixing point for the tensioner, and can be quickly installed and disassembled, and is convenient to use.

[0046] The present invention is provided with a support member and a jacking member, so that the total length of the support member and the jacking member is adjustable, and a long-arm abutting structure will be formed after the support member and the jacking member are connected, which is convenient to be clamped between two fixtures, so it can be applicable to various scenarios, convenient for quickly fixing the tensioner, simple and practical in structure, convenient for production and manufacturing, and easy to implement.

[0047] At the same time, the present invention is provided with a support member for fixing the main body of the tensioner, which is convenient for flexibly adjusting the fixing height of the main body of the tensioner, and at the same time, the height of the main body of the tensioner can be further adjusted by means of the assembly relationship between the support member and the jacking member.

[0048] The following further describes the present invention in detail with reference to the drawings and specific embodiments. Description of the Drawings

[0049] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention (assembling an adjusting nut);

[0050] Figure 2It is a partial enlarged view of the first embodiment of the present utility model;

[0051] Figure 3 It is a schematic diagram of the use of the first embodiment of the present utility model;

[0052] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the present utility model (assembly buckle);

[0053] Figure 5 It is a partial enlarged view of part B of the second embodiment of the present utility model;

[0054] Figure 6 It is a partial enlarged view of part A of the second embodiment of the present utility model;

[0055] Figure 7 It is a side view and corresponding cross-sectional view of part A of the second embodiment of the present utility model;

[0056] Figure 8 It is a schematic diagram of the overall structure of the third embodiment of the present utility model (assembly locknut);

[0057] Figure 9 It is a partial enlarged view of part C of the third embodiment of the present utility model;

[0058] Figure 10 It is a partial enlarged view of part D of the third embodiment of the present utility model;

[0059] Figure 11 It is a schematic diagram of the overall structure of the fourth embodiment of the present utility model (assembly handle);

[0060] Figure 12 It is a partial enlarged view of part E of the fourth embodiment of the present utility model;

[0061] Figure 13 It is a side view of part E of the fourth embodiment of the present utility model;

[0062] Figure 14 It is a cross-sectional view of part E of the fourth embodiment of the present utility model.

[0063] In the figure: 1, support member; 2, jacking member; 3, buckle; 4, telescopic rod; 5, handle; 6, connecting rod; 7, support plate; 8, round rod; 81, fastening hoop; 82, tightening wrench; 9, square rod; 91, fixed seat; 92, fixing bolt; 93, fixing hole; 10, locknut; 11, puller; 12, leg press frame; 13, adjusting nut. Detailed implementation manners

[0064] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of non-conflict, any combination can be formed between the following-described embodiments or technical features to form a new embodiment.

[0065] It should be noted that when two components are "fixedly connected" or "threadedly connected", the two components can be directly connected or there can also be an intermediate component. On the contrary, when a component is referred to as being "directly on" another component, there is no intermediate component. The terms "height", "length", "upper", "lower" and similar expressions used herein are only for the purpose of illustration.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0067] As Figures 1 - 3 shown, the first specific embodiment of the tensioner fixing device of the present utility model:

[0068] A tensioner fixing device includes a support member 1 for fixing the tensioner 11, a jacking member 2 for fixing the support member 1 and having a thread, and an adjusting device; the jacking member 2 is movably sleeved with the support member 1 through a thread; the support member 1 is fixed between two fixed points by extending the jacking member 2; the adjusting device is used to adjust and maintain the total length of the jacking member 2 and the support member 1 unchanged.

[0069] The jacking member 2 is directly rotationally connected to the support member 1 through a thread, and the adjusting device includes an adjusting nut 13 adapted to the jacking member 2; when it is necessary to fix the support member 1, rotate the adjusting nut 13 to make it abut against the support member 1.

[0070] As Figures 4 - 7 shown, the second specific embodiment of the tensioner fixing device of the present utility model:

[0071] A tensioner fixing device includes a support member 1 for fixing the tensioner 11, a jacking member 2 for fixing the support member 1 and having a thread, and an adjusting device.

[0072] The jacking member 2 and the support member 1 are threadedly connected through the adjusting device; the adjusting device includes a buckle 3 rotatably connected to the support member 1, the end of the buckle 3 is provided with a thread adapted to the jacking member 2 and abuts against the jacking member 2; when it is necessary to fix the support member 1, rotate the jacking member 2; when it is necessary to loosen the support member 1, rotate the buckle 3 so that its end is disengaged from contact with the jacking member 2. The end of the buckle 3 is provided with a thread adapted to the jacking member 2. When the end of the buckle 3 abuts against the jacking member 2, the jacking member 2 and the support member 1 form a threaded connection. By rotating the jacking member 2, the total length of the jacking member 2 and the support member 1 can be changed, and then the support member 1 can be fixed between two walls to provide a fixing point for the tensioner 11. When it is necessary to disassemble the support device, press the other end of the buckle 3 to make it rotate, and the end of the buckle 3 is disengaged from contact with the jacking member 2. The jacking member 2 and the support member 1 become movably sleeved, and the jacking member 2 can be retracted into the support member 1, that is, the total length of the jacking member 2 and the support member 1 is quickly changed, realizing quick disassembly.

[0073] As Figures 8 - 10 shown, the third specific embodiment of the tensioner fixing device of the present utility model:

[0074] A tensioner fixing device includes a support member 1 for fixing the tensioner 11, a jacking member 2 for fixing the support member 1 and having a thread, and an adjusting device.

[0075] A locking bolt 10 is provided on the support member 1; when it is necessary to prevent the jacking member 2 from rotating, tighten the locking bolt 10 so that it abuts against the jacking member 2; when it is necessary to rotate the jacking member 2 and then remove the support member 1, loosen the locking bolt 10 so that it is disengaged from contact with the jacking member 2. To prevent the support member 1 and the jacking member 2 from rotating and loosening during the exercise of the user, a locking bolt 10 is provided on the support member 1. After the fixing device is fixed, tighten the locking bolt 10 so that it abuts against the jacking member 2, thereby playing a role in preventing loosening.

[0076] As Figures 11 - 14 shown, the fourth specific embodiment of the tensioner fixing device of the present utility model:

[0077] A tensioner fixing device includes a support member 1 for fixing the tensioner 11, a jacking member 2 for fixing the support member 1 and having a thread, and an adjusting device.

[0078] The jacking member 2 is directly threadedly connected to the support member 1; the adjusting device includes a telescopic rod 4 sleeved on the jacking member 2, a handle 5 rotatably connected to the jacking member 2, and a connecting rod 6 connecting the telescopic rod 4 and the handle 5. The telescopic rod 4 is controlled to extend and retract by rotating the handle 5; when it is necessary to fix the support member 1, rotate the handle 5 to make the telescopic rod 4 in the extended limit position, and rotate the jacking member 2; when it is necessary to loosen the support member 1, rotate the handle 5 to make the telescopic rod 4 contract.

[0079] In this embodiment, the inner ring of the support member 1 is provided with a thread adapted to the jacking member 2. The jacking member 2 is directly threadedly connected to the support member 1, so the total length of the support member 1 and the jacking member 2 can be adjusted by rotating the jacking member 2. Moreover, a telescopic rod 4 is arranged at the end of the jacking member 2, and it forms a connecting rod mechanism with the handle 5 and the connecting rod 6. When the telescopic rod 4 is in the extended limit position, the connecting rod mechanism is at its dead point position, thereby realizing the quick fixation of the jacking member 2 and the support member 1 between two walls. When it is necessary to disassemble the fixing device, only by rotating the handle 5 to destroy the dead point position of the connecting rod mechanism can the quick disassembly be realized. Then, the threaded connection between the jacking member 2 and the support member 1 realizes the fine adjustment of their total length, and the connecting rod mechanism realizes the large-scale rough adjustment of the jacking member 2 and the support member 1.

[0080] The fifth specific embodiment of the fixing device of the tensioner of the present utility model:

[0081] A tensioner fixing device, including a support member 1 for fixing the main body of the tensioner 11 and a jacking member 2 for adjusting the position of the support member 1;

[0082] One of the jacking member 2 and the support member 1 is provided with a screw rod, and the other is provided with a threaded cavity;

[0083] The screw rod is screwed into the threaded cavity and can be screwed in and out in the threaded cavity to adjust the total length of the support member 1 and the jacking member 2, so as to form an adjustable-length long-arm abutting structure.

[0084] In this embodiment, the support member 1 is a rod-shaped structure, and a threaded cavity is opened therein;

[0085] The jacking member 2 is a screw rod; a support disc 7 is arranged at one end of the support member 1 away from the jacking member 2; a support disc 7 is arranged at one end of the jacking member 2 away from the support member 1; the support disc 7 is a disc body with a rubber pad, and its cross-section is circular.

[0086] The support member 1 and the jacking member 2 are respectively provided with a telescopic structure, and the total length of the telescopic structure when unfolded is A; A < 3 meters.

[0087] A specific embodiment of adding a support disc 7 to the fixing device of the tensioner of the present utility model:

[0088] A tensioner fixing device comprises a support member 1 for fixing a tensioner 11, and a lifting member 2 with threads for fixing the support member 1. Support plates 7 are provided at the ends of the lifting member 2 and the ends of the support member 1. Support plates 7 are provided at both ends to make the entire support device more stable and reduce damage to the wall. A leg press frame 12 is provided to facilitate sitting or squatting exercises and provide a reasonable point of force for users.

[0089] A specific embodiment of the utility model of the tensioner fixing device with an additional support plate 7:

[0090] A tensioner fixing device comprises a support member 1 for fixing the tensioner 11 and a lifting member 2 with threads for fixing the support member 1.

[0091] The support member 1 is a round rod 8, and a fastening hoop 81 for fixing the tensioner 11 and a spanner 82 for adjusting the fastening hoop 81 are provided on the support member 1, and the tensioner 11 is fixed to different positions on the support member 1 through the fastening hoop 81; or, the support member 1 is a square rod 9, and a fixing seat 91 and a fixing bolt 92 for fixing the tensioner 11 are provided on the support member 1, and a fixing hole 93 cooperating with the fixing bolt 92 is provided on the fixing seat 91 and the support member 1; the tensioner 11 is fixed to different positions on the support member 1 through the cooperation of the fixing bolt 92 and the fixing hole 93. When the support member 1 is a round rod 8, the tensioner 11 can be fixed to different positions on the support member 1 through the cooperation of the fastening hoop 81 and the spanner 82; when the support member 1 is a square rod 9, the tensioner 11 can also be fixed to different positions on the support member 1 through the cooperation of the fixing bolt 92 and the fixing hole 93.

[0092] A specific embodiment of the tensioner fixing device of the utility model is applied:

[0093] An electronic tensioner with convenient height adjustment comprises the above-mentioned tensioner fixing device.

[0094] In the present application, the fixing method may be screw connection, plug connection or connection through a third component, and those skilled in the art may make a selection according to actual conditions.

[0095] 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 is described in detail with reference to the above embodiments, ordinary technicians in the relevant field can still modify or replace the specific implementation methods of the utility model with equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A fixed device for a tensioner, characterized in that, It includes a support member (1) for fixing a tensioner (11), a jacking member (2) for fixing the support member (1) and having threads, and an adjusting device; the jacking member (2) is movably sleeved with the support member (1) through threads; the support member (1) is fixed between two fixed points by extending the jacking member (2); the adjusting device is used to adjust and keep the total length of the jacking member (2) and the support member (1) unchanged.

2. The fixing device for an expander according to claim 1, characterized in that, The jacking member (2) is directly rotationally connected with the support member (1) through threads, and the adjusting device includes an adjusting nut (13) adapted to the jacking member (2); when it is necessary to fix the support member (1), rotate the adjusting nut (13) to make it abut against the support member (1).

3. The fixing device of a chest expander according to claim 1, wherein, The jacking member (2) is threadedly connected with the support member (1) through the adjusting device; the adjusting device includes a buckle (3) rotationally connected with the support member (1), the end of the buckle (3) is provided with threads adapted to the jacking member (2) and abuts against the jacking member (2); when it is necessary to fix the support member (1), rotate the jacking member (2); when it is necessary to loosen the support member (1), rotate the buckle (3) to make the end thereof disengage from the jacking member (2).

4. The fixing device for a chest expander according to claim 1, wherein, The jacking member (2) is directly threadedly connected with the support member (1); the adjusting device includes a telescopic rod (4) sleeved on the jacking member (2), a handle (5) rotationally connected with the jacking member (2), and a connecting rod (6) connecting the telescopic rod (4) and the handle (5), and the telescopic of the telescopic rod (4) is controlled by rotating the handle (5); when it is necessary to fix the support member (1), rotate the handle (5) to make the telescopic rod (4) in the limit position of extension, and rotate the jacking member (2); when it is necessary to loosen the support member (1), rotate the handle (5) to make the telescopic rod (4) contract.

5. A tensioner fixing device according to any one of claims 2-4, characterized in that, Support discs (7) are provided at the ends of both the jacking member (2) and the support member (1), and a leg press frame (12) is movably provided on the support member (1).

6. The tensioner fixing device according to claim 5, characterized in that, The support member (1) is a round rod (8), and a fastening hoop (81) for fixing the tensioner (11) and a wrench (82) for adjusting the tightness of the fastening hoop (81) are provided on the support member (1), and the tensioner (11) is fixed at different positions on the support member (1) through the fastening hoop (81); or, the support member (1) is a square rod (9), and a fixing seat (91) for fixing the tensioner (11) and a fixing bolt (92) are provided on the support member (1), and fixing holes (93) for cooperating with the fixing bolt (92) are provided on the fixing seat (91) and the support member (1); the tensioner (11) is fixed at different positions on the support member (1) through the cooperation of the fixing bolt (92) and the fixing holes (93).

7. The fixing device of an expander according to claim 3 or 4, characterized in that The support member (1) is provided with a locknut bolt (10); when it is necessary to control the non-rotation of the jacking member (2), tighten the locknut bolt (10) so that it abuts against the jacking member (2); when it is necessary to rotate the jacking member (2) and then remove the support member (1), loosen the locknut bolt (10) so that it is disengaged from the jacking member (2).

8. A tensioner fixing device, characterized in that, It includes a support member (1) for fixing the main body of the tensioner (11) and a jacking member (2) for adjusting the position of the support member (1); One of the jacking member (2) and the support member (1) is provided with a screw rod, and the other is provided with a threaded cavity; The screw rod is screwed into the threaded cavity and can be screwed in and out of the threaded cavity to adjust the total length of the support member (1) and the jacking member (2), so as to form an adjustable-length long-arm abutting structure.

9. The fixing device for a tensioner according to claim 8, wherein The support member (1) is a housing of the tensioner (11) or a rod-shaped structure or a block-shaped structure or an arc-shaped structure, and a threaded cavity is opened therein; Or / and, the jacking member (2) is a rod-shaped structure or a block-shaped structure or an arc-shaped structure, and is provided with a screw rod; Or / and, a support disc (7) is provided at one end of the support member (1) away from the jacking member (2); Or / and, a support disc (7) is provided at one end of the jacking member (2) away from the support member (1); The support disc (7) is a rubber disc with a suction cavity or a sheet structure with a rubber pad, and its cross-section is square or circular or arc-shaped or in the shape of an animal or a plant; Or / and, the support member (1) and the jacking member (2) are respectively provided with a telescopic structure, and the total length of the telescopic structure when unfolded is A; A < 3 meters.

10. An electronic tensioner that is convenient to adjust the height, characterized in that It includes a fixing device for a tensioner according to any one of claims 1-9.

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