A fitness bicycle capable of adjusting training intensity

Abstract

The present invention relates to the technical field of fitness bicycles, and discloses a fitness bicycle with adjustable training intensity, comprising a support seat and a bicycle body, wherein the support seat comprises a bottom plate for carrying the bicycle body and support feet hingedly arranged at both ends of the bottom plate, and mounting grooves are arranged on both sides of the bottom plate along its length direction, and a diagonal brace mechanism that can be accommodated below the bottom plate is slidably arranged in the mounting groove, and the diagonal brace mechanism is unfolded and slides along the mounting groove to adjust the inclination angle of the bottom plate; the diagonal brace mechanism comprises a mounting seat slidably installed in the mounting groove and a support assembly hingedly installed at the lower end of the mounting seat, and a locking assembly for fixing the mounting seat is arranged in the mounting seat, and a fixing assembly for fixing the supporting assembly is also arranged in the locking assembly. Through the above-mentioned structure, the support seat can be horizontal or tilted by unfolding or accommodating the diagonal brace mechanism, so that the bicycle body thereon is horizontal or tilted, thereby improving the applicability of the bicycle.

Description

Technical Field

[0001] The invention relates to the technical field of fitness bicycles, in particular to a fitness bicycle capable of adjusting training intensity. Background Art

[0002] Fitness bikes are also called power bikes. They are typical aerobic fitness equipment that simulates outdoor sports and are also called cardiopulmonary training equipment. Therefore, more and more people use bicycles to exercise their lower limbs, accelerate limb function recovery, improve joint mobility, and enhance muscle strength.

[0003] Traditional bicycles can only be placed flat on the ground when in use, and a horizontal support seat is provided on the bottom of the bicycle. For example, the rehabilitation bicycle with a neat and beautiful appearance disclosed in the patent with announcement number CN213159170U is placed horizontally on the ground when in actual use. When training, the user needs to use it with a seat, that is, the user sits on the seat at the front of the bicycle and places both feet on the pedals to perform training movements. As a result, this type of bicycle will limit the use scene. For example, the user cannot use it when lying on the ground without using the seat, which makes the applicability of the bicycle poor, so it needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a fitness bicycle with adjustable training intensity to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A fitness bicycle with adjustable training intensity comprises a support seat and a bicycle body arranged on the support seat, the support seat comprises a bottom plate for carrying the bicycle body and support feet hingedly arranged at both ends of the bottom plate, mounting grooves are arranged on both sides of the bottom plate along its length direction, a diagonal brace mechanism which can be accommodated under the bottom plate is slidably arranged in the mounting groove, and the diagonal brace mechanism is unfolded and slides along the mounting groove to adjust the inclination angle of the bottom plate;

[0007] The diagonal bracing mechanism includes a mounting seat slidably installed in the mounting groove and a supporting assembly hingedly installed at the lower end of the mounting seat. The mounting seat is provided with a locking assembly for fixing the mounting seat, and the locking assembly is also provided with a fixing assembly for fixing the supporting assembly.

[0008] Further, a mounting cavity is provided in the mounting seat, a notch communicating with the mounting cavity is provided on the side wall of the mounting seat facing the mounting groove, a locking plate is relatively provided in the mounting cavity and moves toward the corresponding notch through a first spring, a piercing cone is provided on the locking plate and can penetrate into the corresponding side wall of the mounting groove, a locking block is relatively provided on the opposite side of the locking plate, and an inclined slide groove is provided on the locking block;

[0009] The locking assembly includes a locking cylinder arranged on the upper end surface of the mounting seat, a locking rod with an upper end extending out and a lower end extending into the mounting cavity is arranged in the locking cylinder, a retaining ring is arranged on the locking rod located in the locking cylinder, a second spring for pushing the retaining ring upward is arranged in the locking cylinder, a sliding rod penetrating the corresponding inclined slide groove is relatively arranged at the lower end of the locking rod, and pressing the locking rod is used to drive the sliding rod to move downward in the inclined slide groove, thereby driving the locking plates to approach each other.

[0010] Furthermore, a hinge block is provided at the lower end of the mounting seat, and the support assembly includes a support rod, one end of the support rod is provided with a hinge groove for the hinge block to extend into, and a hinge shaft is provided in the hinge groove and passes through the hinge block;

[0011] The fixing assembly includes a fixing plate which can be raised and lowered in the installation cavity by a third spring, and fixing pin blocks which penetrate the installation seat and extend to both sides of the hinge block are arranged on the fixing plate. A first pin hole and a second pin hole for the fixing pin blocks to extend into are arranged on the side walls of the hinge groove. The fixing assembly also includes a driving member which is arranged in the installation cavity and is used to drive the fixing plate to move up.

[0012] Furthermore, a driving groove connected to the installation cavity is provided in the hinge block, and the locking member includes a driving rod that passes through the installation cavity and extends into the driving groove. The outer wall of the driving rod is provided with teeth grooves relatively along its length direction. The locking member also includes a gear that is relatively and rotatably arranged in the driving groove, the gear is meshed with the corresponding teeth groove, and a rack that is meshed with the corresponding gear is relatively provided in the driving groove. The driving rod is located in the driving groove and is raised and lowered to drive the rack to lift the fixed plate.

[0013] Furthermore, the upper end of the driving rod extends through the locking rod, an arc groove is provided at the upper end of the locking rod, a slide plate sliding in the arc groove is provided on the driving rod, and the driving rod rotates to drive the tooth groove to engage or dislocate with the corresponding gear.

[0014] Furthermore, a suction cup is provided at the other end of the support rod, and an air intake assembly located inside the support rod is provided on the suction cup. The driving rod is located in the driving groove and is lifted and lowered to drive the air intake assembly to open and close.

[0015] Furthermore, a mounting groove is provided at the other end of the support rod, and the air intake assembly includes an air intake cylinder arranged in the mounting groove, an air intake chamber connected to the suction cup is provided in the air intake cylinder, a blocking ring is installed at the opening of the air intake chamber, a piston is provided in the air intake chamber through a fourth spring, an air duct connected to the air intake chamber is provided in the piston, a through hole connected to the air duct is provided on the side wall of the piston, an inner air intake hole is provided on the side wall of the air intake cylinder corresponding to the through hole, an outer air intake hole is provided on the outer wall of the support rod corresponding to the inner air intake hole, the fourth spring is used to drive the through hole and the inner air intake hole to be misaligned, a push rod is provided on the piston that passes through the air intake cylinder and the support rod, the lower end of the drive rod passes through the hinge block and extends out, and when the support rod is unfolded, the drive rod moves downward to squeeze the push rod to drive the piston to move so that the through hole is opposite to the inner air intake hole.

[0016] Furthermore, upper and lower ends of the mounting seat extend outward to form abutment portions that overlap the side walls of the bottom plate.

[0017] Furthermore, grooves are provided at one end of the bottom plate and at both sides thereof, and the supporting feet are provided with convex blocks extending into the corresponding grooves, and the grooves are provided with convex shafts penetrating the corresponding convex blocks.

[0018] Furthermore, the bicycle body includes a casing and a flywheel rotatably arranged in the casing, the flywheel is provided with pedals with both ends extending through the casing, and pedals are provided at the protruding ends of the pedals; an adjusting member for adjusting the rotation resistance of the flywheel is provided in the casing, the adjusting member includes a mounting arc plate that can move toward the flywheel, a plurality of permanent magnets are evenly distributed on the mounting arc plate, and an adjuster for adjusting the relative distance between the mounting arc plate and the flywheel is provided outside the casing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention stores the diagonal support mechanism under the bottom plate, so that the support seat can be placed horizontally on the ground, that is, the bicycle body can be horizontal, so that it can be used in conjunction with a seat, that is, the user can do leg training while sitting on the seat; the diagonal support mechanism is deployed to support the bottom plate, so that the bottom plate is tilted, that is, the bicycle body is tilted, so that the user can do leg training while lying on the ground, without using it in conjunction with a seat, thereby improving the applicability of the fitness bicycle.

[0021] 2. In the present invention, when the diagonal support mechanism is deployed to support the bottom plate, the inclination angle of the bottom plate can be adjusted by moving the mounting seat along the mounting groove, thereby improving its applicability and making it adaptable to users with different leg lengths.

[0022] 3. The present invention can drive the driving rod to retract the fixing pin block and release the fixation of the support rod by pressing the locking rod to release the fixation of the support rod so that it can be rotated and adjusted. At the same time, it can also drive the driving rod to squeeze the push rod to move the piston in the air intake chamber so that the through hole is opposite to the inner air intake hole. Even if the air intake assembly is opened, the suction cup is connected to the external atmospheric pressure to release its adsorption on the ground, thereby making it more convenient to move the support rod along the mounting groove.

[0023] 4. The present invention can drive the installation arc plate to move by twisting the regulator to adjust the permanent magnet to be close to or away from the flywheel, thereby adjusting the rotational resistance of the flywheel, thereby conveniently adjusting the training intensity of the fitness bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the horizontal structure of a fitness bicycle with adjustable training intensity in the present invention.

[0025] Figure 2The figure is a schematic diagram of the structure of the inclined state of a fitness bicycle with adjustable training intensity in the present invention.

[0026] Figure 3 It is a structural schematic diagram of the support base in the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the cooperation between the flywheel and the adjusting member in the present invention.

[0028] Figure 5 It is a structural schematic diagram of the diagonal bracing mechanism in the present invention.

[0029] Figure 6 It is a cross-sectional schematic diagram of the diagonal bracing mechanism in the present invention.

[0030] Figure 7 It is a structural schematic diagram of the mounting seat in the present invention.

[0031] Figure 8 It is a cross-sectional schematic diagram of the mounting seat in the present invention.

[0032] Fig. 9 It is a schematic diagram of the structure of the locking rod in the present invention.

[0033] Fig.10 It is a schematic diagram of the structure of the support rod in the present invention.

[0034] Fig.11 for Figure 6 Enlarged schematic diagram of part A in the middle.

[0035] Fig.12 for Figure 6 Enlarged schematic diagram of part B in the middle.

[0036] The meanings of the reference numerals in the figure are as follows: 100, support base; 101, bottom plate; 102, support foot; 103, mounting groove; 110, bicycle body; 111, housing; 112, pedal bar; 113, pedal; 114, adjuster; 120, mounting base; 130, support assembly;

[0037] 201, groove; 211, convex block;

[0038] 410, flywheel; 420, install arc plate;

[0039] 510, locking cylinder; 520, locking rod; 530, supporting rod; 540, driving rod; 550, suction cup;

[0040] 710, locking plate; 711, piercing cone; 720, hinge block; 730, fixing pin block; 741, abutment portion;

[0041] 811, mounting cavity; 820, first spring; 830, locking block; 831, inclined slide groove; 841, retaining ring; 850, second spring; 860, third spring; 861, spring mounting plate; 870, fixing plate;

[0042] 901, tooth groove; 911, slide bar; 921, arc groove; 931, slide plate;

[0043] 1011, hinge groove; 1012, first pin hole; 1013, second pin hole;

[0044] 1101, driving groove; 1110, gear; 1120, rack;

[0045] 1201, assembly groove; 1202, external air inlet; 1210, air inlet cylinder; 1220, blocking ring; 1230, fourth spring; 1240, piston; 1241, airway; 1242, through hole; 1243, push rod. DETAILED DESCRIPTION

[0046] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0047] The following is combined with Figure 1-Figure 12 This embodiment is described in further detail.

[0048] like Figure 1-4 As shown, in this embodiment, a fitness bicycle with adjustable training intensity comprises a support seat 100 and a bicycle body 110 arranged on the support seat 100, wherein the bicycle body 110 comprises a housing 111 and a flywheel 410 rotatably arranged in the housing 111, wherein the flywheel 410 is rotatably installed in the housing 111 through a frame (not shown in the figure), and a pedal rod 112 is provided on the flywheel 410, and both ends of the pedal rod 112 extend through the housing 111, and the pedal rod 112 is in a Z shape, and the flywheel 410 is fixedly connected to the middle of the pedal rod 112, and pedals 113 are rotatably installed at the extended ends of the pedal rod 112, thereby, when the bicycle body 110 is actually used, it is necessary to use it in conjunction with a seat, that is, the user sits on the seat and steps on the corresponding pedals 113 with both feet to perform leg training;

[0049] The housing 111 is provided with an adjusting member for adjusting the rotational resistance of the flywheel 410. The adjusting member includes a mounting arc plate 420 that can move toward the flywheel 410. The mounting arc plate 420 is slidably mounted on the frame. A plurality of permanent magnets are evenly arranged on the mounting arc plate 420. The mounting arc plate 420 slides to adjust the permanent magnets to approach or away from the flywheel 410, thereby adjusting the rotational resistance of the flywheel 410, thereby conveniently adjusting the training intensity of the fitness bike.

[0050] Among them, an adjuster 114 is provided outside the casing 111 for adjusting the relative distance between the mounting arc plate 420 and the flywheel 410. The adjuster 114 is a hand screw, which is threadedly connected to the casing 111. The end of the hand screw extends into the casing 111 and is rotatably connected to the mounting arc plate 420. Therefore, in actual use, the movement of the mounting arc plate 420 can be achieved by twisting the adjuster 114, so that the adjustment operation of the training intensity of the fitness bike is simple and convenient.

[0051] In this embodiment, the support seat 100 includes a bottom plate 101 for supporting a bicycle body 110 and support feet 102 hingedly arranged at both ends of the bottom plate 101. Both sides of the bottom plate 101 are provided with mounting grooves 103 along its length direction. A diagonal bracing mechanism that can be received under the bottom plate 101 is slidably arranged in the mounting groove 103. The diagonal bracing mechanism is unfolded and slides along the mounting groove 103 to adjust the inclination angle of the bottom plate 101.

[0052] The diagonal bracing mechanism includes a mounting seat 120 slidably installed in the mounting groove 103 and a support assembly 130 hingedly installed at the lower end of the mounting seat 120. A locking assembly for fixing the mounting seat 120 is provided in the mounting seat 120, and a fixing assembly for fixing the support assembly 130 is also provided in the locking assembly.

[0053] In this embodiment, the bicycle body 110 is fixedly mounted on the support seat 100, so that when the support seat 100 is placed horizontally on the ground, the bicycle body 110 thereon can be horizontal, and at this time, the user can sit on the seat to do leg training; when the support seat 100 makes the bicycle body 110 in an inclined state, at this time, the user can lie on the ground, bend the legs and step on the corresponding pedals 113 with both feet to do leg training, so that the bicycle body 110 does not need to be used in conjunction with the seat, thereby improving the applicability of the fitness bicycle;

[0054] Among them, by setting the bottom plate 101, the supporting feet 102, the mounting slot 103 and the diagonal support mechanism, in actual use, Figure 1 As shown, the diagonal support mechanism is bent and stored at the side wall of the bottom plate 101. At this time, the support feet 102 at both ends are in contact with the ground, which can keep the bottom plate 101 horizontal so that the bicycle body 110 thereon is in a horizontal state, which is convenient for the user to use it while sitting on the chair; Figure 2As shown, the diagonal bracing mechanism is unfolded to support the ground, so that the bottom plate 101 can rotate around the supporting foot 102 at one end thereof, so that the bottom plate 101 is in an inclined state, and the bicycle body 110 thereon is in an inclined state, which is convenient for the user to lie flat and use; at this time, the diagonal bracing mechanism can be slid along the installation groove 103 to adjust the inclination angle of the bottom plate 101, thereby improving its applicability and making it adaptable to users with different leg lengths;

[0055] Among them, grooves 201 are relatively provided at one end and on both sides of the base plate 101, and a protrusion 211 extending into the corresponding groove 201 is provided on the support foot 102. A convex shaft penetrating the corresponding protrusion 211 is provided in the groove 201. The convex shaft penetrates the protrusion 211, and the hinged connection between the support foot 102 and the base plate 101 is preferably realized by penetrating the protrusion 211, so that the base plate 101 can rotate around the support foot 102.

[0056] In this embodiment, combined with Figure 7 As shown, the upper and lower ends of the mounting seat 120 extend outward to form abutment portions 741 overlapped on the side wall of the bottom plate 101, thereby preferably realizing the sliding installation of the mounting seat 120 in the corresponding mounting groove 103; wherein, by setting the locking assembly, it is possible to fix the mounting seat 120, that is, the position of the diagonal bracing mechanism in the mounting groove 103 is fixed, so that it is convenient for it to support the inclined bottom plate 101;

[0057] Among them, by setting the fixing component, it is possible to fix the support component 130, and then the support component 130 can be bent and stored on the bottom plate 101 or the support component 130 can be unfolded to support the bottom plate 101.

[0058] Combination Figure 5-9 As shown, in this embodiment, a mounting cavity 811 is provided in the mounting seat 120, and a notch communicating with the mounting cavity 811 is provided on the side wall of the mounting seat 120 facing the mounting groove 103. A locking plate 710 moving toward the corresponding notch is relatively provided in the mounting cavity 811 through a first spring 820, and a piercing cone 711 that can penetrate into the corresponding side wall of the mounting groove 103 is provided on the locking plate 710. A locking block 830 is relatively provided on the opposite side of the locking plate 710, and an inclined slide groove 831 is provided on the locking block 830;

[0059] The locking assembly includes a locking cylinder 510 arranged on the upper end surface of the mounting seat 120, and a locking rod 520 is arranged in the locking cylinder 510, the upper end of which extends out and the lower end of which extends into the mounting cavity 811, and a retaining ring 841 is arranged on the locking rod 520 located in the locking cylinder 510. A second spring 850 for pushing the retaining ring 841 to move upward is arranged in the locking cylinder 510, and a sliding rod 911 is arranged at the lower end of the locking rod 520 and passes through the corresponding inclined sliding groove 831. Pressing the locking rod 520 is used to drive the sliding rod 911 to move downward in the inclined sliding groove 831, thereby driving the locking plates 710 to approach each other.

[0060] In actual use, if Figure 8 As shown, a step portion is formed between the slot and the side wall of the installation cavity 811, and a stop portion is formed at the upper and lower ends of the locking plate 710 corresponding to the step portion, thereby preferably preventing the first spring 820 from pushing the corresponding locking plate 710 out of the slot;

[0061] A baffle portion for installing the first spring 820 is formed between the opposite side walls of the installation cavity 811, one end of the first spring 820 abuts against the baffle portion, and the other end abuts against the corresponding locking plate 710, thereby preferably pushing the locking plate 710 to move to the corresponding notch, so that the spike on the locking plate 710 pierces the corresponding side wall of the installation groove 103, thereby fixing the mounting seat 120 in the installation groove 103; wherein, in order to make the movement of the locking plate 710 in the installation cavity 811 more stable, a plurality of first springs 820 are evenly distributed and are relatively arranged on both sides of the corresponding locking block 830;

[0062] Among them, the locking cylinder 510 is located on the upper side surface of the base plate 101. Through the structure in this embodiment, in the initial state, the second spring 850 drives the retaining ring 841 to move upward, driving the upper end of the locking rod 520 to extend, and at the same time, the sliding bar 911 is located at the upper end of the corresponding inclined sliding groove 831. At this time, the first spring 820 drives the locking plate 710 to move to the corresponding notch, so that the thorn cone 711 penetrates into the side wall of the mounting groove 103 to fix the mounting seat 120; when the position of the mounting seat 120 needs to be moved, the upper end of the locking rod 520 is pressed to make the sliding bar 911 move along the inclined sliding groove 831 to its lower end, so that the locking plates 710 can be close to each other, thereby driving the thorn cone 711 to disengage from the side wall of the mounting groove 103, and releasing the fixation of the mounting seat 120. At this time, the locking cylinder 510 can be held to slide along the mounting groove 103 to adjust the position of the mounting seat 120.

[0063] Combination Fig.10 As shown, in this embodiment, a hinge block 720 is provided at the lower end of the mounting seat 120, and the support assembly includes a support rod 530, and one end of the support rod 530 is provided with a hinge groove 1011 for the hinge block 720 to extend into, and a hinge shaft is provided in the hinge groove 1011 and passes through the hinge block 720;

[0064] The fixing assembly includes a fixing plate 870 which can be raised and lowered in the installation cavity 811 by means of a third spring 860, and fixing pin blocks 730 are relatively provided on the fixing plate 870 and pass through the installation seat 120 and extend to both sides of the hinge block 720, and a first pin hole 1012 and a second pin hole 1013 are provided on the side wall of the hinge groove 1011 for the fixing pin blocks 730 to extend into, and the fixing assembly also includes a driving member which is arranged in the installation cavity 811 and is used to drive the fixing plate 870 to move upward.

[0065] In this embodiment, the hinged installation of the support rod 530 at the lower end of the mounting seat 120 is preferably achieved by setting the hinge block 720, the hinge slot 1011 and the hinge axis;

[0066] In actual use, a spring mounting plate 861 for mounting the third spring 860 is provided between the baffles located above the fixing plate 870. The upper end of the third spring 860 abuts against the spring mounting plate 861, and the lower end abuts against the fixing plate 870, so that the third spring 860 can drive the fixing plate 870 to move downward, so that the fixing pin block 730 extends out of the mounting seat 120. In order to install the third spring 860, the spring mounting plate 861 and the fixing plate 870 are both provided with mounting posts extending into the corresponding ends of the corresponding third spring 860.

[0067] Among them, by setting the first pin hole 1012 and the second pin hole 1013, in actual use, when the fixed pin block 730 extending out of the mounting seat 120 extends into the first pin hole 1012, at this time, the support rod 530 is fixed, so that it is bent and stored under the bottom plate 101, that is, the diagonal support mechanism is stored under the bottom plate 101, and when the fixed pin block 730 extending out of the mounting seat 120 extends into the second pin hole 1013, at this time, the support rod 530 is fixed to the lower end of the mounting seat 120 along the axial direction of the mounting seat 120, that is, the diagonal support mechanism is unfolded, and the bottom plate 101 is supported to make it tilted;

[0068] Among them, through the setting of the driving member, it can drive the fixing plate 870 to move upward, drive the fixing pin block 730 to retract, and release the fixation of the support rod 530. At this time, the diagonal support mechanism can be unfolded or stored by rotating the support rod 530, which is convenient for use.

[0069] Combination Fig.11As shown, in this embodiment, a driving groove 1101 connected to the installation cavity 811 is provided in the hinge block 720, and the locking member includes a driving rod 540 that passes through the installation cavity 811 and extends into the driving groove 1101. The outer wall of the driving rod 540 is provided with tooth grooves 901 relatively along its length direction. The locking member also includes a gear 1110 relatively and rotatably arranged in the driving groove 1101, the gear 1110 is meshed with the corresponding tooth groove 901, and a rack 1120 meshed with the corresponding gear 1110 is relatively provided in the driving groove 1101. The driving rod 540 is located in the driving groove 1101 and is lifted and lowered to drive the rack 1120 to lift the fixed plate 870.

[0070] In this embodiment, Fig.11 As shown, the upper end of the driving rod 540 extends through the locking rod 520 and the driving rod 540 is rotatably connected to the locking rod 520, the gear 1110 is rotatably installed in the driving groove 1101 through the rotating shaft, and the rack 1120 is slidably installed in the driving groove 1101 along the up and down directions through the keyway, thereby, in the initial state, that is, the second spring 850 drives the retaining ring 841 to make the upper end of the locking rod 520 extend, at this time, the tooth groove 901 is engaged with the gear 1110, and when the locking rod 520 is pressed to release the fixation of the mounting seat 120, the downward movement of the locking rod 520 will drive the driving rod 540 to move downward synchronously, thereby causing the gear 1110 to rotate. The locking rod 520 is pressed against the locking rod 520, and the locking rod 520 drives the driving rod 540 to reset, so that the rack 1120 can be retracted into the driving groove 1101, and the lifting of the fixing plate 870 is released. The fixing plate 870 is reset under the action of the third spring 860, so that the fixing pin block 730 is extended and inserted into the first pin hole 1012 or the second pin hole 1013 to fix the support rod 530.

[0071] When the support rod 530 is unfolded to support the bottom plate 101, when it is necessary to move the position of the mounting seat 120 in the mounting groove 103 to adjust the inclination angle of the bottom plate 101, during this process, the support rod 530 does not need to be rotated and adjusted. At this time, the tooth groove 901 and the corresponding gear 1110 are misaligned by rotating the driving rod 540. At this time, pressing the locking rod 520 only realizes the relative movement of the locking plate 710, so that the actual use of the diagonal support mechanism is better.

[0072] In actual use, such as Fig. 9As shown, the upper end of the driving rod 540 extends through the locking rod 520, and an arc groove 921 is provided at the upper end of the locking rod 520. A slide plate 931 sliding in the arc groove 921 is provided on the driving rod 540. The driving rod 540 rotates to drive the tooth groove 901 to engage or misalign with the corresponding gear 1110.

[0073] A cover plate is provided at the opening of the arc groove 921, and the cover plate is used to realize the sliding installation of the slide plate 931 in the arc groove 921; through this structure, the drive rod 540 is twisted to make the slide plate 931 slide and switch between the two ends of the arc groove 921, so that the tooth groove 901 and the corresponding gear 1110 can be meshed or misaligned, so that the switching operation is simple and convenient;

[0074] It should be noted that there is a certain friction resistance between the slide plate 931 and the side walls of the arc groove 921 and the side walls of the cover plate. This friction resistance can prevent the driving rod 540 from rotating easily, thereby facilitating its actual use.

[0075] In this embodiment, a suction cup 550 is provided at the other end of the support rod 530, and an air intake assembly located inside the support rod 530 is provided on the suction cup 550. The driving rod 540 is located in the driving groove 1101 and is lifted and lowered to drive the air intake assembly to open and close.

[0076] By setting the suction cup 550 in this embodiment, when the support rod 530 is unfolded to support the bottom plate 101, the suction cup 550 can be adsorbed on the ground, thereby improving the stability of the support base 100 fixed on the ground and preventing it from sliding.

[0077] Among them, through the setting of the air intake component, when the suction cup 550 is adsorbed on the ground, the suction cup 550 can be connected to the outside through the air intake component, and then the adsorption of the suction cup 550 can be quickly released, so as to facilitate the position adjustment of the unfolded support rod 530.

[0078] Combination Fig.12As shown, in this embodiment, a mounting groove 1201 is provided at the other end of the support rod 530, and the air intake assembly includes an air intake cylinder 1210 arranged in the mounting groove 1201, an air intake cavity connected to the suction cup 550 is provided in the air intake cylinder 1210, a blocking ring 1220 is installed at the opening of the air intake cavity, a piston 1240 is provided in the air intake cavity through a fourth spring 1230, an air passage 1241 connected to the air intake cavity is provided in the piston 1240, a through hole 1242 connected to the air passage 1241 is provided on the side wall of the piston 1240, and the side wall of the air intake cylinder 1210 An inner air inlet hole is provided on the corresponding through hole 1242, and an outer air inlet hole 1202 is provided on the outer wall of the support rod 530 corresponding to the inner air inlet hole. The fourth spring 1230 is used to drive the through hole 1242 to be misaligned with the inner air inlet hole. The piston 1240 is provided with a push rod 1243 that penetrates the air intake cylinder 1210 and the support rod 530. The lower end of the driving rod 540 penetrates the hinge block 720 and extends out. When the support rod 530 is unfolded, the driving rod 540 moves downward to squeeze the push rod 1243 to drive the piston 1240 to move so that the through hole 1242 is opposite to the inner air inlet hole.

[0079] In actual use of this embodiment, when the support rod 530 is unfolded, that is, the fixed pin block 730 extends into the second pin hole 1013, at this time, the driving rod 540 and the top rod 1243 are arranged opposite to each other, and when the support rod 530 is unfolded, the suction cup 550 is placed on the ground. At this time, under the action of the fourth spring 1230, the piston 1240 moves in the air intake cavity, so that the through hole 1242 and the inner air intake hole are misaligned, and then the air intake component is preferably closed, so that pressing the support seat 100 can discharge the air in the suction cup 550, and the suction of the suction cup 550 on the ground is achieved;

[0080] When the locking rod 520 is pressed to release the fixing of the mounting seat 120, the locking rod 520 can drive the driving rod 540 to move downward, so that it can squeeze the ejector rod 1243, drive the piston 1240 to move in the air intake chamber, make the through hole 1242 face the inner air intake hole, and then open the air intake assembly. At this time, the suction cup 550 is connected to the outside atmospheric pressure, and then the suction of the suction cup 550 on the ground is released, so that the mounting seat 120 can slide in the mounting groove 103, and the position of the support rod 530 is adjusted; when the locking rod 520 is released, the fourth spring 1230 drives the piston 1240 to reset, so that the air intake assembly is automatically closed, so that it is convenient for the suction cup 550 to be adsorbed again;

[0081] Of course, in order to prevent the rotation of the piston 1240 in the air intake chamber from causing misalignment between the through hole 1242 and the inner air intake hole, the piston 1240 is slidably installed in the air intake chamber through a keyway.

[0082] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A fitness bicycle with adjustable training intensity, comprising a support seat (100) and a bicycle body (110) disposed on the support seat (100), characterized in that: The support seat (100) comprises a bottom plate (101) for supporting a bicycle body (110) and support feet (102) hingedly arranged at both ends of the bottom plate (101); installation grooves (103) are arranged on both sides of the bottom plate (101) along its length direction; a diagonal bracing mechanism which can be accommodated below the bottom plate (101) is slidably arranged in the installation groove (103); the diagonal bracing mechanism is unfolded and slides along the installation groove (103) to adjust the inclination angle of the bottom plate (101); The diagonal bracing mechanism comprises a mounting seat (120) slidably mounted in the mounting groove (103) and a support assembly (130) hingedly mounted at the lower end of the mounting seat (120); a locking assembly for fixing the mounting seat (120) is provided in the mounting seat (120); and a fixing assembly for fixing the support assembly is also provided in the locking assembly; A mounting cavity (811) is provided in the mounting seat (120), a notch communicating with the mounting cavity (811) is provided on a side wall of the mounting seat (120) facing the mounting groove (103), a locking plate (710) is relatively provided in the mounting cavity (811) and moves toward the corresponding notch via a first spring (820), a piercing cone (711) is provided on the locking plate (710) and can penetrate into the corresponding side wall of the mounting groove (103), a locking block (830) is relatively provided on the opposite side of the locking plate (710), and an inclined sliding groove (831) is provided on the locking block (830); The locking assembly comprises a locking cylinder (510) arranged on the upper end surface of the mounting seat (120), a locking rod (520) is arranged in the locking cylinder (510), the upper end of which extends out and the lower end of which extends into the mounting cavity (811), a retaining ring (841) is arranged on the locking rod (520) located in the locking cylinder (510), a second spring (850) for pushing the retaining ring (841) upward is arranged in the locking cylinder (510), a sliding rod (911) penetrating the corresponding inclined sliding groove (831) is arranged at the lower end of the locking rod (520), and the locking rod (520) is pressed to drive the sliding rod (911) to move downward in the inclined sliding groove (831), thereby driving the locking plates (710) to move closer to each other; A hinge block (720) is provided at the lower end of the mounting seat (120), and the support assembly comprises a support rod (530), one end of the support rod (530) is provided with a hinge groove (1011) for the hinge block (720) to extend into, and a hinge shaft is provided in the hinge groove (1011) and passes through the hinge block (720); The fixing assembly comprises a fixing plate (870) which is liftable in the installation cavity (811) by means of a third spring (860); fixing pin blocks (730) are arranged on the fixing plate (870) and penetrate the installation seat (120) and extend to both sides of the hinge block (720); a first pin hole (1012) and a second pin hole (1013) are arranged on the side wall of the hinge groove (1011) for the fixing pin block (730) to extend into; and the fixing assembly further comprises a driving member which is arranged in the installation cavity (811) and is used to drive the fixing plate (870) to move upward; A driving groove (1101) communicating with the installation cavity (811) is provided in the hinge block (720); the locking member comprises a driving rod (540) penetrating the installation cavity (811) and extending into the driving groove (1101); tooth grooves (901) are provided on the outer wall of the driving rod (540) along its length direction; the locking member further comprises a gear (1110) relatively and rotatably provided in the driving groove (1101); the gear (1110 is meshed with the corresponding tooth groove (901); a rack (1120) meshed with the corresponding gear (1110) is relatively provided in the driving groove (1101); the driving rod (540) is located in the driving groove (1101) and is raised and lowered to drive the rack (1120) to lift the fixing plate (870); The upper end of the driving rod (540) penetrates through the locking rod (520) and extends outward, an arc-shaped groove (921) is provided at the upper end of the locking rod (520), and a slide plate (931) is provided on the driving rod (540) and slides in the arc-shaped groove (921). The driving rod (540) rotates to drive the tooth groove (901) to mesh or misalign with the corresponding gear (1110); A suction cup (550) is provided at the other end of the support rod (530), and an air intake assembly located inside the support rod (530) is provided on the suction cup (550); the driving rod (540) is located in the driving groove (1101) and is lifted and lowered to drive the air intake assembly to open and close; The other end of the support rod (530) is provided with an assembly groove (1201), and the air intake assembly comprises an air intake cylinder (1210) arranged in the assembly groove (1201), an air intake cavity connected to the suction cup (550) is arranged in the air intake cylinder (1210), a blocking ring (1220) is installed at the opening of the air intake cavity, a piston (1240) is arranged in the air intake cavity via a fourth spring (1230), an air passage (1241) connected to the air intake cavity is arranged in the piston (1240), a through hole (1242) connected to the air passage (1241) is arranged on the side wall of the piston (1240), and a through hole (1242) corresponding to the through hole (1242) is arranged on the side wall of the air intake cylinder (1210). An inner air inlet hole (1242) is provided, an outer air inlet hole (1202) is provided on the outer wall of the support rod (530) corresponding to the inner air inlet hole, a fourth spring (1230) is used to drive the through hole (1242) to be misaligned with the inner air inlet hole, a push rod (1243) is provided on the piston (1240) penetrating the air inlet cylinder (1210) and the support rod (530), the lower end of the drive rod (540) penetrates the hinge block (720) and is extended out, and when the support rod (530) is unfolded, the drive rod (540) moves downward to squeeze the push rod (1243) to drive the piston (1240) to move so that the through hole (1242) is opposite to the inner air inlet hole.

2. The fitness bicycle with adjustable training intensity according to claim 1, characterized in that: The upper and lower ends of the mounting seat (120) extend outward to form abutment portions (741) overlapped on the side wall of the bottom plate (101).

3. The fitness bicycle with adjustable training intensity according to claim 1, characterized in that: One end of the bottom plate (101) and two opposite sides thereof are provided with grooves (201); the supporting foot (102) is provided with a protrusion (211) extending into the corresponding groove (201); and the groove (201) is provided with a protruding shaft penetrating the corresponding protrusion (211).

4. The fitness bicycle with adjustable training intensity according to claim 1, characterized in that: The bicycle body (110) comprises a housing (111) and a flywheel (410) rotatably arranged in the housing (111); the flywheel (410) is provided with a pedal rod (112) with two ends extending through the housing (111); and pedals (113) are provided at the extended ends of the pedal rod (112); an adjusting member for adjusting the rotation resistance of the flywheel (410) is provided in the housing (111); the adjusting member comprises a mounting arc plate (420) movable toward the flywheel (410); a plurality of permanent magnets are evenly arranged on the mounting arc plate (420); and an adjuster (114) for adjusting the relative distance between the mounting arc plate (420) and the flywheel (410) is provided outside the housing (111).

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