CN219110760U

CN219110760U - Abdomen building device

Info

Publication number: CN219110760U
Application number: CN202320179966.0U
Authority: CN
Inventors: 徐敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-06-02
Anticipated expiration: 2033-01-18

Abstract

The utility model provides an abdomen building device, including support, running gear sets up on the support makes the support can slide, the support includes two supporting parts and two grips, the support can be in the state of supporting the upper limbs and support the state of low limbs between the adjustment, the supporting part can be in the state of supporting the forearm and in the state of supplying the foot to trample, when the support is in the state of supporting the upper limbs, the exerciser's forearm supports on the supporting part, the hand is held on the grips, when the support is in the state of supporting the low limbs, the exerciser's foot tramples on the supporting part, so through the state of adjustment support and supporting part, the exerciser just can carry out different modes exercise, if the exerciser can support the forearm and hold on the portion of holding, do the action of bending forward and backward and carry out abdomen building exercise, can be doing static dull and stereotyped supporting action again, still can be sitting and pedal the foot on the supporting part and do flexible leg action.

Description

Abdomen building device

Technical Field

The utility model relates to an abdomen building device.

Background

The traditional abdomen building device is an abdomen building wheel, the main structure comprises a supporting shaft and walking wheels arranged on the supporting shaft, the walking wheels can be of a single-wheel structure, namely, the walking wheels are arranged on the supporting shaft by taking the supporting shaft as a rotating shaft, such as CN218280434U, a double-wheel or multi-wheel structure can also be adopted, namely, a plurality of walking wheels are arranged on the supporting shaft by a wheel frame, such as CN218165887U, when the abdomen building device is used for exercise, an exerciser holds the handles at the two ends of the supporting shaft by two hands, then bends forward and backward, so that the effect of exercising muscles such as abdomen is achieved, and an elastic reset piece such as a torsion spring, a clockwork and the like is usually arranged between the walking wheels and the wheel shaft for saving labor.

For more convenience in supporting upper limbs of a body and realizing a flat plate supporting function, chinese patent document CN207506920U discloses an abdominal muscle wheel for enhancing abdominal contraction, which comprises an abdominal muscle wheel, a handle and an auxiliary handle, wherein the auxiliary handle is connected with the handles on two sides of the abdominal muscle wheel through threaded bolts and connecting buckles, supporting pads are symmetrically arranged on two sides of the abdominal muscle wheel, and an anti-slip sleeve is arranged on the auxiliary handle. Through the combination of assist handle and supporting pad, can make people tighten up the abdomen core strength more easily when using, reach the effect of stabilizing the health, reinforcing abdomen shrinkage force, improve training effect, reduce the injury that causes the health, give people abdomen training and brought the convenience, but the exercise that the lower limb was done to the lower limb can not be supported to the exercise device of building abdomen of above-mentioned structure.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and provides an abdomen building device capable of supporting lower limbs to perform lower limb movement exercise.

The aim of the utility model is realized by the following technical scheme:

the utility model provides a abdomen building device, includes support, running gear sets up on the support and makes the support slide, its characterized in that: the support includes two supporting parts and two grips, and the support can be in the state of supporting the upper limbs and support the state of lower limb between the adjustment, and the supporting part can be in the state of supporting the forearm and supply the foot to trample between the state, and when the support is in the state of supporting the upper limbs, the exerciser's forearm supports on the supporting part, and the hand is held on the grips, and when the support is in the state of supporting the lower limbs, the exerciser's foot tramples on the supporting part, through the state of adjustment support and supporting part, the exerciser just can carry out different modes ' exercise, if the exerciser can support the forearm and hold on the supporting part, do the action of bending over back and forth and carry out the exercise of building the abdomen, can do static dull and stereotyped supporting action again, still can sit and do the flexible leg action with the foot on the supporting part.

The walking mechanism comprises a supporting shaft and walking wheels arranged on the supporting shaft, the support comprises two longitudinal rods which are arranged in parallel and opposite to each other, the two longitudinal rods are connected with the two ends of the supporting shaft in a rotating mode, the structure can better support the support, and the support can stably support the body part on the premise of guaranteeing rotatable adjustment.

The bracket also comprises a U-shaped rod connected between the two longitudinal rods, the U-shaped rod extends upwards relative to the longitudinal rods to form the holding part, and the structure can enable the whole bracket to be more compact and form the holding part reasonably.

The longitudinal rod and the U-shaped rod are metal pipe fittings, and the longitudinal rod and the U-shaped rod are in plug-in fit and are locked and fixed through a fastener, so that the longitudinal rod and the U-shaped rod can be conveniently disassembled and transported.

The vertical rod is rotationally connected with the supporting shaft through a rotating mechanism, the rotating mechanism comprises a mounting piece, a first limiting piece and a first bolt, the mounting piece is fixedly arranged at the end part of the supporting shaft, the first bolt sequentially penetrates through the vertical rod and the first limiting piece and then is locked on the mounting piece, an arc-shaped groove is formed in the mounting piece, a limiting pin extending into the arc-shaped groove is arranged on the first limiting piece, a first contact surface matched with the vertical rod is formed on the first limiting piece, the limiting pin is abutted against one end of the arc-shaped groove under the action of gravity, the support is kept in a state of supporting an upper limb, when the limiting pin is abutted against the other end of the arc-shaped groove, the support is in a state of supporting a lower limb, the first contact surface is matched with the vertical rod, the arc-shaped groove and the limiting pin are matched with each other, and the support can be switched and kept between the state of supporting the lower limb and the state of supporting the upper limb.

The rotating mechanism further comprises a second limiting part, the first bolt sequentially penetrates through the second limiting part, the longitudinal rod and the first limiting part and then is locked on the mounting part, the second limiting part is formed with a second contact surface matched with the longitudinal rod, and the longitudinal rod can be held by the first limiting part and the second limiting part, so that the connection between the longitudinal rod and the supporting shaft is more reliable and stable.

The support part comprises a first cross rod and a support plate, the first cross rod is fixedly arranged on the support, the support plate is locked on the first cross rod through an adjusting bolt, a first bolt through hole and a second bolt through hole are formed in the first cross rod, the adjusting bolt penetrates through the first bolt through hole to be locked with the support plate, the support plate is kept in a state of supporting the front arm, the adjusting bolt penetrates through the second bolt through hole to be locked with the support plate, and the support plate is kept in a state of stepping on a foot.

The first bolt penetration hole and/or the second bolt penetration hole comprise a plurality of bolt penetration holes arranged along the length direction of the first cross bar, so that the supporting plate can be transversely adjusted on the first cross bar to adapt to an exerciser with shoulder width.

The two supporting parts are symmetrically arranged on the outer sides of the two longitudinal rods, the first cross rod is fixedly connected with the longitudinal rods through a first fixing sleeve, the first cross rod is fixedly connected with the first fixing sleeve, the first fixing sleeve is sleeved on the longitudinal rods and is fixed through a first locking bolt, and the structure can be conveniently assembled and disassembled with the longitudinal rods.

The utility model discloses a fixed rail, including the vertical pole, be formed with first perforation on the vertical pole, be formed with second perforation and first locking screw on the fixed cover of first, first fixed cover is formed with the breach that extends along its length direction, first locking bolt passes second perforation, first perforation in proper order and first locking screw locking is fixed, makes like this when locking first locking bolt, can make the fixed cover deformation of first in order to hold tightly the vertical pole, prevents that first horizontal pole from becoming flexible.

The second cross bars are arranged on the longitudinal bars and are opposite to the supporting parts, so that when the support is in a state of supporting the lower limbs, the exerciser steps on the supporting parts on the soles, and the insteps are supported on the second cross bars, so that the lower limbs can be stably supported on the support, and the feet and the support are prevented from being separated when the telescopic legs are operated.

The second cross bar can be arranged on the longitudinal bar in a movable and adjustable manner relative to the supporting part, so that the exercise machine is suitable for exercisers with different sizes.

The second cross rod is fixedly connected with the longitudinal rod through a second fixing sleeve, the second cross rod is fixedly connected with the second fixing sleeve, and the second fixing sleeve is sleeved on the longitudinal rod and is fixed through a second locking bolt.

The walking wheel is provided with an elastic resetting piece, so that the abdomen building action and the leg stretching action are more labor-saving.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

Fig. 1 is a perspective view of the present utility model, with the brace in a state of supporting an upper limb.

Fig. 2 is a perspective view of another view of the present utility model, with the brace in a state of supporting a lower limb.

Fig. 3 is a perspective view of the present utility model, with the support in a state of supporting a lower limb.

Fig. 4 is a perspective view of another view of the present utility model, with the brace in a state of supporting a lower limb.

Fig. 5 is an exploded view of a partial component of the bracket.

Fig. 6 is an exploded view of the components of the rotation mechanism.

Fig. 7 is an exploded view of a partial component of another view of the bracket.

Fig. 8 is an exploded view of the rotating mechanism from another perspective.

Fig. 9 is an exploded view of the components of the support.

Fig. 10 is an exploded view of the support from another perspective.

Fig. 11 is an exploded view of the junction of the U-shaped bar and the longitudinal bar.

Fig. 12 is an exploded view of another attachment structure for the U-shaped bar and the side rail.

Detailed Description

Referring to fig. 1 to 11, an abdomen building apparatus includes a support 1, a traveling mechanism 2, and the traveling mechanism 2 is disposed on the support 1 so that the support 1 can slide.

The bracket 1 comprises two longitudinal rods 12, a U-shaped rod 11, two supporting parts 3 and two second transverse rods 4, wherein the two longitudinal rods 12 are arranged in parallel and opposite, the U-shaped rod 11 is connected between the two longitudinal rods 12, the U-shaped rod 11 extends upwards relative to the plane of the longitudinal rods 12 to form two holding parts 11A, in order to increase holding comfort, a buffer sleeve 13 is sleeved on the holding parts 11A, the buffer sleeve 13 can be made of foaming materials such as foam cotton, the longitudinal rods 12 and the U-shaped rod 11 are all made of metal pipe fittings with circular cross sections, the longitudinal rods 12 and the U-shaped rod 11 are connected with each other through plastic connecting pieces 14, the plastic connecting pieces 14 are provided with two inserting sections which are inserted into the end parts of the longitudinal rods 12 and the end parts of the U-shaped rod 11, a first connecting screw hole 143 is formed in one inserting section, a second connecting screw hole 142 is formed in the other inserting section, a first hole 125 opposite to the first connecting screw hole 143 is formed in the longitudinal rod 12, a second hole 111 opposite to the second connecting screw hole 142 is formed in the U-shaped rod 11, a bolt 141 passes through the first hole 125 and the first screw hole 125 and passes through the first connecting screw hole 142 to form a second hole 111, a fixing hole 112 is formed in the same way as the first connecting section 12A, a fastening hole 126 is formed in the other inserting section 12 and the first connecting section 12 is in the other inserting section is in the first reducing section 12A fixing hole 12A, the first connecting section is formed in the other inserting section is in the fixing section, and the first connecting section is 12 is in the fixing hole 126, and the other inserting section is 12 is formed in the fixing, and the fixing hole is in the other inserting section is 12 is in the fixing, and is 12.

The travelling mechanism 2 comprises a supporting shaft 21 and two travelling wheels 27 arranged on the supporting shaft, the two travelling wheels 27 are arranged in the middle of the supporting shaft 21 through a wheel frame 26, the travelling wheels 27 are provided with elastic resetting pieces, in particular springs or torsion springs, so that abdomen building actions and leg stretching actions can be more labor-saving, and the specific structure of the travelling mechanism 2 is a known prior art and is not described in detail herein.

The support shaft 21 has a circular tubular structure, the two longitudinal rods 12 are rotatably connected with the two ends of the support shaft 21 through a rotating mechanism, the support 1 can be rotatably adjusted between a state of supporting the upper limb (shown in fig. 1 and 2) and a state of supporting the lower limb (shown in fig. 3 and 4), the structure can better support the support 1, and the support 1 can stably support the body part on the premise of ensuring the rotatable adjustment.

Referring to fig. 6 and 8, the rotating mechanism includes a mounting member 25, a first limiting member 24, a second limiting member 22 and a first bolt 23, where the mounting member 25, the first limiting member 24 and the second limiting member 22 are all plastic members, the mounting member 25 is cylindrical, a portion of the mounting member 25 is sleeved in an end portion of the support shaft 21 and is locked and fixed by a bolt 251, a screw hole 254 matched with the bolt 251 is formed on a side surface of the mounting member 25, a bolt through hole through which the bolt 251 passes is formed on the support shaft 21, the first limiting member 24 and the second limiting member 22 are all cylindrical, one end of the first limiting member 24 is formed with a first contact surface adapted to an outer circumferential surface of the vertical rod 12, one end of the second limiting member 22 is formed with a second contact surface 22A adapted to an outer circumferential surface of the vertical rod 12, the mounting member 25 is formed with a screw hole 252 extending along an axial direction, the first limiting member 24 and the second limiting member 22 are formed with a first central hole 242 and a second central hole 221 penetrating the first limiting member along an axial direction, a mounting hole 124 penetrating the vertical rod 12 in a transverse direction, the first limiting member 23, the first limiting member 22 and the second limiting member 22 are connected to the first limiting member 24 and the second limiting member 12 in sequence, and the first limiting member 24 and the second limiting member 12 are connected to the first limiting member 12, and the second limiting member 24, and the second limiting member 22 is fastened and the first limiting member and the second limiting member 12.

An arc-shaped groove 253 is formed on the end face of the mounting piece 25, a limiting pin 241 extending into the arc-shaped groove 253 is arranged on the end face of the first limiting piece 24, a pin hole 243 for mounting the limiting pin 241 is formed on the specific first limiting piece 24, the limiting pin 241 is abutted against one end of the arc-shaped groove 253 under the action of gravity, the support 1 is kept in a state of supporting an upper limb, when the limiting pin 241 is abutted against the other end of the arc-shaped groove 253, the support 1 is in a state of supporting a lower limb, and the arc-shaped groove 253 and the limiting pin 241 are matched to enable the support 1 to be switched and kept between the state of supporting the lower limb and the state of supporting the upper limb.

The two supporting parts 3 are symmetrically arranged on the outer sides of the two longitudinal rods 12, the supporting parts 3 comprise a first cross rod 32 and a supporting plate 31, the first cross rod 32 is a circular metal pipe, a plug 323 is arranged at the free end of the supporting plate 31, the first cross rod 32 is fixedly arranged on the longitudinal rods 12 through a first fixing sleeve 33, the first cross rod 32 is fixedly welded with the first fixing sleeve 33, the first cross rod 32 is vertically arranged with the first fixing sleeve 33, the supporting plate 31 is of a plastic material and is of a substantially arc-shaped plate structure, the supporting plate 31 is tightly locked on the first cross rod 32 through an adjusting bolt 35, a first bolt through hole 321 and a second bolt through hole 322 are formed in the first cross rod 32, the adjusting bolt 35 is tightly locked with the supporting plate 31 through the first bolt through hole 321, the supporting plate 31 is kept in a state of supporting the front arm, the adjusting bolt 35 is tightly locked with the supporting plate 31 through the second bolt through hole 322, the supporting plate 31 is kept in a state of stepping on the foot, a positioning part 311 matched with the outer peripheral surface of the first cross rod 32 is formed at the bottom of the specific supporting plate 31, the positioning part 311 is provided with an arc-shaped positioning surface matched with the outer peripheral surface of the first cross rod 32, the arc-shaped positioning surface is formed with the arc-shaped positioning surface matched with the outer peripheral surface of the first cross rod 32, the adjusting bolt through the adjusting bolt 35 is matched with the first bolt through the adjusting bolt through hole 321, the adjusting bolt through the adjusting bolt 35 in the length of the first cross rod 32 can be matched with the length of the first cross rod 32, and can move along the length of the first cross rod 32 along the direction of the adjusting bolt through the length, and the adjusting bolt can be adjusted to be matched with the length of the first cross rod 32.

The first fixing sleeve 33 is sleeved on the vertical rod 12 and is fixed through the first locking bolt 34, the structure can be convenient for the disassembly and assembly of the first transverse rod 32 and the vertical rod 12, a plurality of first through holes 121 are formed in the specific vertical rod 12, a second through hole 332 and a first locking screw hole 333 are formed in the first fixing sleeve 33, a notch 331 extending along the length direction of the first fixing sleeve 33 is formed in the first fixing sleeve 33, the first locking bolt 34 sequentially penetrates through the second through hole 332 and the first through hole 121 to be locked and fixed with the first locking screw hole 333, and therefore when the first locking bolt 34 is locked, the first fixing sleeve 33 can be deformed to clamp the vertical rod 12, the first transverse rod 32 is prevented from loosening, and the supporting plate 31 can be adjusted front and back through the arrangement of the plurality of first through holes 121, so that the first fixing sleeve is suitable for exercisers with different arm lengths.

When the support 1 is in a state of supporting the upper limbs, the forearms of the exercisers are supported on the support plate 31, the hands are gripped on the holding part 11A, when the support 1 is in a state of supporting the lower limbs, the feet of the exercisers are trampled on the support plate 31, thus, by adjusting the states of the support 1 and the support plate 31, the exercisers can exercise in different modes, such as the exercisers can support the forearms on the support plate 31 and hold the forearms on the holding part 11A, do the action of bending forward and backward to exercise the abdomen, do the static flat plate supporting action, and also sit to do the action of stretching legs on the support plate 31.

The second cross bar 4 is arranged on the vertical bar 12 and is opposite to the supporting part 3, so that when the support 1 is in a state of supporting the lower limb, the sole of an exerciser steps on the supporting part 3, and the instep is supported on the second cross bar 4, thus the lower limb can be stably supported on the support 1, and the foot is prevented from being separated from the support 1 when the telescopic leg acts.

The second cross rod 4 can be arranged on the vertical rod 12 in a movable and adjustable manner relative to the supporting part 3, so that the second cross rod 4 is suitable for exercisers with different sizes, the second cross rod 4 is also a metal pipe fitting, a plastic plug 45 is arranged at the free end, a buffer sleeve 44 is sleeved on the second cross rod in order to enable the second cross rod 4 to support the instep more comfortably, the second cross rod 4 is fixedly connected with the vertical rod 12 through a second fixing sleeve 42, the second cross rod 4 is fixedly connected with the second fixing sleeve 42, the second fixing sleeve 42 is sleeved on the vertical rod 12 and is fixed through a second locking bolt 43, a third through hole 122 is formed on the vertical rod 12, a fourth through hole and a second locking screw hole are formed on the second fixing sleeve 42, a notch extending along the length direction of the second fixing sleeve 42 is formed, and the second locking bolt 43 sequentially penetrates through the fourth through hole, the third through hole 122 and the second locking screw hole to be locked and fixed.

When the abdomen building exercise or the flat plate support is required, the support 1 rotates under the action of gravity to enable the planes of the two longitudinal rods 12 to be approximately horizontal, namely, the support 1 is in a state of supporting the upper limbs, the support is realized by abutting one end of the arc-shaped groove 253 through the limiting pin 241, the support plate 31 is adjusted to be approximately horizontal, at the moment, an exerciser can bend over to support the front arm on the support plate 31, grasp the hand on the holding part 11A, and then do forward and backward sliding motion, namely, the abdomen building exercise or statically keep the body in a straight extension state to do the flat plate support exercise.

When the leg stretching exercise is needed, the supporting plate 31 is adjusted to a state where feet can be stepped on, and the support 1 is rotated to a state where the support 1 is inclined and raised, that is, the state where the support 1 supports the lower limbs, at this time, an exerciser sits on the supporting plate 31 with feet resting on the second cross bar 4, and the front and rear legs stretch.

The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, i.e., the utility model is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the utility model.

Claims

1. The utility model provides a abdomen building device, includes support (1), running gear (2), and running gear (2) set up make support (1) can slide on support (1), its characterized in that: the support (1) comprises two supporting parts (3) and two holding parts (11A), the support (1) can be adjusted between a state of supporting an upper limb and a state of supporting a lower limb, the supporting parts (3) can be adjusted between a state of supporting a forearm and a state of stepping on a foot, when the support (1) is in the state of supporting the upper limb, the forearm of an exerciser is supported on the supporting parts (3), the hands are held on the holding parts (11A), and when the support (1) is in the state of supporting the lower limb, the feet of the exerciser are stepped on the supporting parts (3).

2. An abdominal exercise device as in claim 1, wherein: the walking mechanism (2) comprises a supporting shaft (21) and walking wheels (27) arranged on the supporting shaft (21), the bracket (1) comprises two longitudinal rods (12) which are arranged in parallel and opposite to each other, and the two longitudinal rods (12) are rotatably connected with two ends of the supporting shaft (21).

3. An abdominal exercise device as in claim 2, wherein: the bracket (1) further comprises a U-shaped rod (11) connected between the two longitudinal rods (12), and the U-shaped rod (11) extends upwards relative to the longitudinal rods (12) to form the holding part (11A).

4. An abdominal exercise device as in claim 3, wherein: the longitudinal rod (12) and the U-shaped rod (11) are metal pipe fittings, and the longitudinal rod (12) and the U-shaped rod (11) are in plug-in fit and are locked and fixed through a fastener.

5. An abdominal exercise device as in claim 2, wherein: the utility model provides a support structure, including vertical pole (12), back support shaft (21) is connected, including installation piece (25), first locating part (24) and first bolt (23) through rotary mechanism, rotation mechanism is in installation piece (25) are fixed to be set up the tip of support shaft (21), first bolt (23) pass in proper order vertical pole (12), locking behind first locating part (24) on installation piece (25), be formed with arc recess (253) on installation piece (25), be provided with on first locating part (24) and stretch into locating pin (241) in arc recess (253), first locating part (24) be formed with first contact surface (24A) of vertical pole (12) looks adaptation, support (1) make locating pin (241) support arc recess (253) one end under the effect of gravity, make support (1) keep in the state of supporting the upper limbs, when locating pin (241) support the other end of arc recess (253), support (1) in the state of supporting the lower limbs.

6. An abdominal exercise device as in claim 5, wherein: the rotating mechanism further comprises a second limiting part (22), the first bolt (23) sequentially penetrates through the second limiting part (22), the longitudinal rod (12) and the first limiting part (24) and then is locked on the mounting part (25), and the second limiting part (22) is provided with a second contact surface (22A) matched with the longitudinal rod (12).

7. An abdomen building equipment according to any of claims 2 to 6, wherein: the support part (3) comprises a first cross rod (32) and a support plate (31), wherein the first cross rod (32) is fixedly arranged on the support (1), the support plate (31) is locked on the first cross rod (32) through an adjusting bolt (35), a first bolt through hole (321) and a second bolt through hole (322) are formed in the first cross rod (32), the adjusting bolt (35) penetrates through the first bolt through hole (321) to be locked with the support plate (31), the support plate (31) is kept in a state of supporting a forearm, and the adjusting bolt (35) penetrates through the second bolt through hole (322) to be locked with the support plate (31), so that the support plate (31) is kept in a state of being stepped on by feet.

8. An abdominal exercise device as in claim 7, wherein: the first bolt penetration hole (321) and/or the second bolt penetration hole (322) comprise a plurality of bolt penetration holes arranged along the length direction of the first cross bar (32).

9. An abdominal exercise device as in claim 7, wherein: the two supporting parts (3) are symmetrically arranged on the outer sides of the two longitudinal rods (12), the first transverse rod (32) is fixedly connected with the longitudinal rods (12) through a first fixing sleeve (33), the first transverse rod (32) is fixedly connected with the first fixing sleeve (33), and the first fixing sleeve (33) is sleeved on the longitudinal rods (12) and is fixed through a first locking bolt (34).

10. An abdominal exercise device as in claim 9, wherein: the vertical rod (12) is provided with a first perforation (121), the first fixing sleeve (33) is provided with a second perforation (332) and a first locking screw hole (333), the first fixing sleeve (33) is provided with a notch (331) extending along the length direction of the first fixing sleeve, and the first locking bolt (34) sequentially penetrates through the second perforation (332), the first perforation (121) and the first locking screw hole (333) to be locked and fixed.

11. An abdomen building equipment according to any of claims 2 to 6, wherein: the vertical rod (12) is provided with a second cross rod (41) which is arranged opposite to the supporting part (3), the arrangement is that when the support (1) is in a state of supporting lower limbs, the exerciser steps on the supporting part (3) on the sole, and the instep is supported on the second cross rod (41).

12. An abdominal exercise device as in claim 11, wherein: the second transverse bar (41) is arranged on the longitudinal bar (12) in a manner of being movable and adjustable relative to the support part (3).

13. An abdominal exercise device as in claim 11, wherein: the second cross rod (41) is fixedly connected with the longitudinal rod (12) through a second fixing sleeve (42), the second cross rod (41) is fixedly connected with the second fixing sleeve (42), and the second fixing sleeve (42) is sleeved on the longitudinal rod (12) and is fixed through a second locking bolt (43).

14. An abdomen building equipment according to any of claims 2 to 6, wherein: the travelling wheel (27) is provided with an elastic resetting piece.