Detachable fixing structure for jack support

Abstract

The utility model relates to the technical field of fixing structures for jack supports, in particular to a detachable fixing structure for a jack support, which comprises a jack support body. A bearing supporting block is arranged above the movable supporting block, a clamping groove is formed in the upper end face of the movable supporting block, a movable limiting groove is formed below the clamping groove, second springs are arranged at the front end and the rear end of the interior of the movable limiting groove, and a movable block is arranged above the second springs; clamping blocks clamped into the clamping grooves are arranged on the left side and the right side of the lower portion of the bearing supporting block correspondingly, a gear is arranged in the movable groove, a connecting shaft is arranged in the gear in a penetrating mode, and a first inserting groove is formed in the connecting shaft. The lifting mechanism is convenient to disassemble, time and labor are saved, meanwhile, the bearing part can be replaced according to requirements, and the practicability of the jack support is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixed structure for jack support technical field especially relates to a detachable fixed structure for jack support. BACKGROUND

[0002] The jack support is a kind of support specially used for bearing the object to be lifted, is composed of support frame, jack and adjusting bolt three parts, support frame is usually welded by square tube or round tube, and have certain bearing capacity, jack support is mainly used in the aspect of automobile maintenance, better maintenance is carried out to automobile by the auxiliary action of jack support.

[0003] For the prior art patent No. CN215439444U, a kind of jack support, including base, intermediate support, upper support, the base, including bottom plate, slide, slide is two square steel pipes, steel pipe is equipped with several pin hole, steel pipe middle position is slotted in one side, bottom plate is rectangular iron plate, steel pipe slotted face is vertically welded in the middle position of bottom plate short side, the utility model is formed by base and intermediate support assembly It is a kind of jack support, the support is placed in working position, jack is placed between bottom plate and short steel pipe I, when jack works, short steel pipe I is driven long steel pipe I to slide in slide, and then the weight on the frame or the weight on the lifting plate moves correspondingly, when it moves to appropriate position, it is fixed with pin through corresponding pin hole, when continuing to lift operation, remove pin, adjust the height of jack, continue to lift operation.

[0004] For the above-mentioned prior art, it can be known that the load is increased in the lower space of the jack to provide support, which improves the practicality of the jack, but the internal gear of the existing jack support is engaged with the lifting fixing structure, and the long-time engagement movement will cause wear between the gear and the lifting fixing structure, thereby affecting the subsequent normal use, and the load-bearing part above the lifting structure of the jack support is a welded integrated structure, which cannot be disassembled and replaced, so that the load-bearing surface range of the load-bearing part is small, and the load-fixing effect is poor, which affects the subsequent use.

[0005] Therefore, for the above-mentioned phenomenon that the existing jack support is worn out after long time use, the disassembly method is complex, inconvenient for subsequent replacement, and the load-bearing part is an integrated structure, which cannot be disassembled subsequently, to improve the practicality of the jack support, a detachable fixed structure for jack support can be designed, which can be conveniently disassembled by lifting mechanism, save time and effort, and the load-bearing part can be replaced according to demand, improve the practicality of the jack support. UTILITY MODEL CONTENTS

[0006] In order to overcome the existing jack support long time use will cause wear phenomenon occurs, its disassembly mode is more complex, inconvenient for subsequent replacement, at the same time its bearing part and its integrated structure, also can't be disassembled subsequently, reduce the use effect problem.

[0007] The utility model discloses a detachable fixed structure for jack support, including jack support body, the inside of jack support body is provided with movable slot, and the left and right sides in movable slot are all provided with movable support block, and the top of movable support block is provided with bearing support block, and the upper end surface of movable support block is provided with the clamping groove, and the lower of clamping groove is provided with movable limiting slot, and the front and back of movable limiting slot are all provided with second spring, and the top of second spring is provided with movable block, and the left and right sides below bearing support block are all provided with the clamping block of clamping in the clamping groove, and the inside of gear is provided with connecting shaft, and the inside of connecting shaft is provided with first insertion slot, and the four end feet of first insertion slot are all provided with first through -hole, and the inside of first insertion slot is provided with insertion block, and the four end faces of insertion block are all provided with elastic fixed sheet, and the front end of jack support body is provided with handle, and the rear end of handle is provided with the installation head in the movable slot, and the inside of installation head is provided with second insertion slot, and insertion block inserts into second insertion slot, and the four end faces of second insertion slot are all provided with second through -hole.

[0008] Preferably, the movable support block is pulled upwards to disengage from the movable slot in the jack support body, and then the four elastic fixing pieces are pressed to slowly disengage from the first through -hole and the second through -hole due to the elastic effect, at this time, the installation head is pulled out from one end without being fixed, the installation head is disengaged from the first insertion slot in the connecting shaft, at the same time, the insertion block is disengaged from the second insertion slot in the installation head, so that the handle can be disassembled, after disassembly, the gear can be removed, and finally the replacement is completed.

[0009] Preferably, the lower end surface of the jack support body is fixedly provided with a reinforcing sleeve ring, and the three end feet of the reinforcing sleeve ring are fixedly provided with triangular reinforcing frames outside the jack support body.

[0010] Preferably, the inside of each clamping block is provided with a fixed slot, the inside of the movable limiting slot is provided with an insertion rod, the outside of the insertion rod is sleeved with a first spring, and the insertion rod is inserted into the fixed slot.

[0011] Preferably, the left and right sides of the movable slot are provided with sliding grooves, and one side of the movable support block is fixedly provided with sliding blocks in the sliding grooves.

[0012] Preferably, one side of the movable support block is provided with a plurality of uniformly arranged tooth blocks meshed with the gear.

[0013] Preferably, the elastic fixing piece is penetrated by the connecting shaft through the first through hole, and the elastic fixing piece is penetrated by the mounting head through the second through hole.

[0014] Preferably, the rear end of the connecting shaft is provided with a shaft coupling inside the movable slot, and the surface of the handle is provided with an anti-skid sleeve.

[0015] The utility model discloses beneficial effect:

[0016] 1, this detachable fixed structure for jack support, when the bearing support block is disassembled, first, the bearing support block is pulled to one end, and the clamping block on the left side below is loosened in the clamping slot inside the movable support block, and the bearing support block is continuously pulled upwards, and under the action of tension, the plug rod in the fixed slot in the clamping block is separated, and the clamping block is also separated from the clamping slot, so that the bearing support block can be disassembled.

[0017] 2, this detachable fixed structure for jack support, by the movable support block upwards, it separates the movable slot inside the jack support body, and then by pressing four elastic fixing pieces, it is separated from the first through hole slowly due to the elastic effect, and is also separated from the second through hole, the mounting head is pulled out to one end under the action of no fixed, the mounting head is separated from the first insertion slot inside the connecting shaft, and at the same time, the plug block is separated from the second insertion slot inside the mounting head, so that the handle can be disassembled, after disassembly, the gear can be removed, and finally replacement is completed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a fixed structure for jack support three-dimensional structure schematic diagram is shown.

[0019] Figure 2 The utility model discloses a bearing support block connecting place partial three-dimensional structure schematic diagram is shown.

[0020] Figure 3 The utility model discloses a fixed structure for jack support inside three-dimensional structure schematic diagram is shown.

[0021] Figure 4 The utility model discloses Figure 3 Three-dimensional A place partial enlarged structure schematic diagram is shown.

[0022] Figure 5 The utility model discloses a gear connecting place partial three-dimensional structure schematic diagram is shown.

[0023] Explanation of reference signs: 1, load bearing support block; 2, movable support block; 3, jack support body; 4, handle; 5, triangular reinforcing frame; 6, clamping block; 7, insertion rod; 8, first spring; 9, movable block; 10, second spring; 11, sliding block; 12, clamping groove; 13, movable limiting groove; 14, tooth block; 15, movable groove; 16, sliding groove; 17, gear; 18, connecting shaft; 19, first through hole; 20, first insertion slot; 21, insertion block; 22, elastic fixing piece; 23, mounting head; 24, second through hole; 25, second insertion slot. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0025] The automobile jack is placed in the tool box of the automobile and is used for jacking up the automobile body when replacing the spare tire. The automobile jack has a pneumatic jack, an electric jack, a hydraulic jack and a mechanical jack. The commonly used ones are the hydraulic jack and the mechanical jack. The automobile jack is used for replacing the spare tire, and it is convenient to replace the tire when the tire is broken outside. When the vehicle is jacked up by the jack, the engine must not be started, because the vibration of the engine or the rotation of the wheels will cause the vehicle to slide down from the jack and cause danger. In order to ensure safety, the jack is generally used in a fixed position for various vehicle models, and the jack cannot be supported on the bumper, cross beam and other parts. The maintenance personnel must not work under the vehicle without support. When replacing the wheel, the passengers must not stay on the vehicle, because their movement may cause the vehicle to slide down from the jack. If there is no jack when replacing the tire, different emergency measures can be taken according to the different positions of the tire to be removed. When removing and replacing the outer tire of the double wheels, the inner wheel of the vehicle can be stopped on the wood block or stone with appropriate height, so that the outer tire is suspended and replaced. It should be noted that the hand brake should be tightened and the front wheel should be plugged.

[0026] When using the automobile jack, a flat and hard ground is first needed to be selected for operation, so as to avoid the danger caused by the sliding of the jack or the tilting of the vehicle. Different vehicle models have different chassis designs, so the support point positions of the jack are also different. Generally, the support point of the household car is usually inside the skirt of the vehicle body, and is about 20 cm away from the front and rear wheels. These positions have special reinforcing points and can withstand a large pressure.

[0027] Automobile jack support is divided into several kinds, the first kind of automobile jack: rack and pinion jack; it is composed of rack, gear and handle respectively, it relies on shaking handle to make rack rise and fall; this is also a common kind of automobile jack, it is not big in size, it is easy to store, but also because of this, it limits its support weight cannot be too big; the second kind of automobile jack: hydraulic jack; hydraulic jack is divided into general hydraulic jack and special hydraulic jack, its working principle is more complex, not here detailed, but its use is fast lifting speed, bearing capacity is greater than rack and pinion jack, but similarly, such powerful jack, certainly is not convenient to carry, so this is not a common kind of automobile jack; the third kind of automobile jack: screw jack; screw jack relies on thread self-locking to support heavy object, the structure is not complex, but its support weight is larger, but the working efficiency of this screw jack is slow, slow rising, fast falling; the fourth kind of automobile jack: inflatable jack; this kind of jack may be a little strange to you, because this kind of automobile jack is not common, it relies on the tail gas to inflate, so the use condition is special and little known.

[0028] Please refer to Figures 1-5 The utility model provides a kind of fixed structure for detachable jack support, including jack support body 3, the inside of jack support body 3 is provided with movable slot 15, the left and right sides in movable slot 15 are both provided with movable support block 2, the upper of movable support block 2 is provided with load support block 1, the upper end surface of movable support block 2 is provided with clamping groove 12, the lower of clamping groove 12 is provided with movable limiting slot 13, the front and rear ends in movable limiting slot 13 are both provided with second spring 10, the upper of second spring 10 is provided with movable block 9, the left and right sides below load support block 1 are both provided with the clamping block 6 clamped in clamping groove 12, the inside of gear 17 is provided with connecting shaft 18, the inside of connecting shaft 18 is provided with first insertion slot 20, the four end feet outside first insertion slot 20 are all provided with first through-hole 19, the inside of first insertion slot 20 is provided with insertion block 21, the four end faces outside insertion block 21 are provided with elastic fixed sheet 22, the front end of jack support body 3 is provided with handle 4, the rear end of handle 4 is provided with installation head 23 in movable slot 15, the inside of installation head 23 is provided with second insertion slot 25, insertion block 21 is inserted into second insertion slot 25, the four end faces outside second insertion slot 25 are all provided with second through-hole 24.

[0029] Please refer to Figures 1-3In the embodiment, the lower end surface of the jack support body 3 is fixedly provided with a reinforcing collar, the three end feet outside the reinforcing collar are fixedly provided with triangular reinforcing frames 5 outside the jack support body 3, the interiors of the two clamping blocks 6 are provided with fixed grooves, the interior of the movable limiting groove 13 is provided with a plug rod 7, the exterior of the plug rod 7 is sleeved with a first spring 8, the plug rod 7 is inserted into the fixed groove, the left and right sides of the movable supporting block 2 are provided with sliding grooves 16, one side of the movable supporting block 2 is fixedly provided with sliding blocks 11 inside the sliding grooves 16, when the load supporting block 1 is disassembled, first, the load supporting block 1 is pulled to one end, so that the clamping blocks 6 on the left and right sides below are loosened in the clamping grooves 12 inside the movable supporting block 2, the load supporting block 1 is continuously pulled upwards, under the action of the pulling force, the plug rod 7 inserted into the fixed groove inside the clamping block 6 is separated, at the same time, the clamping block 6 is also separated from the clamping groove 12, so that the disassembly of the load supporting block 1 is completed, the disassembly process is simple and fast, and the subsequent replacement is facilitated.

[0030] Please refer to Figures 4-5 In the embodiment, one side of the movable supporting block 2 is provided with a plurality of uniformly arranged tooth blocks 14 meshingly connected with the gear 17, the elastic fixing piece 22 and the connecting shaft 18 are penetrated through the first through hole 19, the elastic fixing piece 22 and the mounting head 23 are penetrated through the second through hole 24, the rear end of the connecting shaft 18 is provided with a shaft coupling inside the movable groove 15, the surface of the handle 4 is provided with an anti-skid sleeve, when the gear 17 is replaced, the movable supporting block 2 can be pulled upwards first, so that it slides through the sliding groove 16 and is separated from the movable groove 15 inside the jack support body 3, at this time, the gear 17 inside the movable groove 15 is exposed, at this time, the four elastic fixing pieces 22 can be pressed, so that they are slowly separated from the first through hole 19 due to the elastic effect, at the same time, they are also separated from the second through hole 24, at this time, the mounting head 23 is pulled out to one end without the fixing effect, so that the mounting head 23 is separated from the first insertion groove 20 inside the connecting shaft 18, at the same time, the plug block 21 is also separated from the second insertion groove 25 inside the mounting head 23, so that the handle 4 can be disassembled, after the disassembly is completed, the gear 17 can be removed, and finally the replacement is completed.

[0031] When the work is carried out, the load-bearing support block 1 is disassembled, first by pulling the load-bearing support block 1 to one end, so that the clamping block 6 on the left and right sides below is loose in the clamping slot 12 inside the movable support block 2, and continues to pull the load-bearing support block 1 upwards, under the action of tension, so that the plug rod 7 inserted into the fixed slot inside the clamping block 6 is separated, and at the same time the clamping block 6 is also separated from the clamping slot 12, so that the disassembly of the load-bearing support block 1 is completed. The disassembly process is simple and fast, and the subsequent replacement is convenient; when replacing the gear 17, the movable support block 2 can be pulled upwards first, so that it slides through the sliding groove 16 and is separated from the movable slot 15 inside the jack support body 3. At this time, the gear 17 inside the movable slot 15 is exposed, and at this time, the four elastic fixing pieces 22 can be pressed, so that they are slowly separated from the first through hole 19 due to the elastic effect, and at the same time they are separated from the second through hole 24. At this time, the mounting head 23 is pulled out to one end without the action of fixing, so that the mounting head 23 is separated from the first insertion slot 20 inside the connecting shaft 18, and at the same time, the plug block 21 is separated from the second insertion slot 25 inside the mounting head 23. The handle 4 can be disassembled, and after disassembly is completed, the gear 17 can be removed, and finally the replacement is completed.

[0032] Through the above steps, by pulling the load-bearing support block 1 to one end, so that the clamping block 6 on the left and right sides below is loose in the clamping slot 12 inside the movable support block 2, and continues to pull the load-bearing support block 1 upwards, under the action of tension, so that the plug rod 7 inserted into the fixed slot inside the clamping block 6 is separated, and at the same time the clamping block 6 is also separated from the clamping slot 12, so that the disassembly of the load-bearing support block 1 is completed. The disassembly process is simple and fast, and the subsequent replacement is convenient; when replacing the gear 17, the movable support block 2 can be pulled upwards first, so that it slides through the sliding groove 16 and is separated from the movable slot 15 inside the jack support body 3. At this time, the gear 17 inside the movable slot 15 is exposed, and at this time, the four elastic fixing pieces 22 can be pressed, so that they are slowly separated from the first through hole 19 due to the elastic effect, and at the same time they are separated from the second through hole 24. At this time, the mounting head 23 is pulled out to one end without the action of fixing, so that the mounting head 23 is separated from the first insertion slot 20 inside the connecting shaft 18, and at the same time, the plug block 21 is separated from the second insertion slot 25 inside the mounting head 23. The handle 4 can be disassembled, and after disassembly is completed, the gear 17 can be removed, and finally the replacement is completed.

Claims

1. A detachable fixing structure for a jack stand, comprising a jack stand body (3), characterized in that: The inside of the jack support body (3) is provided with a movable groove (15), and the left and right sides of the inside of the movable groove (15) are provided with movable supporting blocks (2). The upper side of the movable supporting block (2) is provided with a bearing supporting block (1), the upper end surface of the movable supporting block (2) is provided with a clamping groove (12), the lower side of the clamping groove (12) is provided with a movable limiting groove (13), the front and rear ends of the inside of the movable limiting groove (13) are provided with second springs (10), the upper side of the second spring (10) is provided with a movable block (9), the left and right sides of the lower side of the bearing supporting block (1) are provided with clamping blocks (6) clamped into the clamping groove (12), the inside of the movable groove (15) is provided with a gear (17), the inside of the gear (17) is provided with a connecting shaft (18), the inside of the connecting shaft (18) is provided with a first insertion groove (20), the four end feet of the outside of the first insertion groove (20) are provided with first through holes (19), the inside of the first insertion groove (20) is provided with an insertion block (21), the four end surfaces of the outside of the insertion block (21) are provided with elastic fixing pieces (22), the front end of the jack support body (3) is provided with a handle (4), the rear end of the handle (4) is provided with a mounting head (23) located in the movable groove (15), the inside of the mounting head (23) is provided with a second insertion groove (25), the insertion block (21) is inserted into the second insertion groove (25), and the four end surfaces of the outside of the second insertion groove (25) are provided with second through holes (24).

2. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The lower end surface of the jack support body (3) is fixedly provided with a reinforcing sleeve ring, and the three end feet of the outside of the reinforcing sleeve ring are fixedly provided with triangular reinforcing frames (5) located outside the jack support body (3).

3. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The inside of the two clamping blocks (6) is provided with a fixed groove, the inside of the movable limiting groove (13) is provided with an insertion rod (7), the outside of the insertion rod (7) is sleeved with a first spring (8), and the insertion rod (7) is inserted into the fixed groove.

4. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The left and right sides of the movable groove (15) are provided with sliding grooves (16), and one side of the movable supporting block (2) is fixedly provided with sliding blocks (11) located in the sliding grooves (16).

5. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The movable supporting block (2) is provided with a plurality of evenly arranged tooth blocks (14) meshed and connected with the gear (17).

6. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The elastic fixing piece (22) penetrates through the first through hole (19) and the connecting shaft (18), and the elastic fixing piece (22) penetrates through the second through hole (24) and the mounting head (23).

7. The detachable fixing structure for a jack stand according to claim 1, characterized in that: The rear end of the connecting shaft (18) is provided with a shaft coupling located in the movable groove (15), and the surface of the handle (4) is provided with an anti-skid sleeve.

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