CN209185863U

CN209185863U - A kind of locating rod

Info

Publication number: CN209185863U
Application number: CN201721293355.XU
Authority: CN
Inventors: 叶帅
Original assignee: YONGKANG SHANFENG SCHOOL FURNITURE Co Ltd
Current assignee: Zhejiang Shanfeng Teaching Aids Co.,Ltd.
Priority date: 2017-10-09
Filing date: 2017-10-09
Publication date: 2019-08-02
Anticipated expiration: 2027-10-09

Abstract

The utility model is a kind of locating rod, is related to a kind of elevating mechanism, belongs to field of mechanical technique.A kind of locating rod, it include hollow outer bar, hollow interior bar is equipped in hollow outer bar, positioning device is provided between hollow outer bar and hollow interior bar, the positioning device includes fixing seat and stock, the hollow interior bar upper end is provided with the fixing seat, guide groove is provided in fixing seat, guide pad is provided in guide groove, guide pad side is provided with positioning protrusion, relative motion each other between the stock and the guide pad, at least two through-holes are provided in the hollow outer bar, when the stock moves downward, the guide pad is under the driving of stock far from the through-hole, the positioning protrusion is detached from the through-hole.The locating rod provided by the utility model that height is adjusted for desk, structure is simple, easy to use and laborsaving, and stability is strong.

Description

A kind of locating rod

Technical field

The utility model belongs to field of mechanical technique, is related to a kind of elevating mechanism, refers in particular to a kind of locating rod.

Background technique

Currently, student's desk considers from usage comfort with the development of society and the continuous improvement of teaching environment, Requirement of the school to the desk chosen is also higher and higher；It in order to adapt to the student of different heights, therefore is most to the height of desk One of main consideration, the most of desks that can be seen on the market now are largely fixed height, and small part exists and has Height-adjustable desk, as described in patent 201420727289.2: a kind of desk, by desk body, desk leg and desktop group At the desk body is equipped with slide rail, and desktop is equipped with the pulley used with slide rail collocation；On the desk leg Equipped with extensible member, extensible member and desk leg pass through bayonet connection.It is adjusting in a manner of bayonet that the desk, which provides a kind of, Main means realize the lifting demand to desk height, main user-student must first press when adjusting desk height Firmly bayonet pins " pin shaft ", realize that the upper-lower height of desk is adjusted；But due to the weight of the entire desk of bayonet load-bearing, When adjusting, bayonet will receive the influence of weight and seem in pressing and cause high effort for, sometimes possibly even can be directly stuck.

Summary of the invention

The purpose of the utility model is to provide one kind for desk height adjustment, structure is simple and positioning easy to use Bar.

Purpose of the utility model is realized as follows:

A kind of locating rod, includes hollow outer bar, is equipped with hollow interior bar in hollow outer bar, hollow outer bar and hollow interior bar it Between be provided with positioning device, the positioning device includes fixing seat and stock, and setting has been in the hollow interior bar upper end Fixing seat to be stated, guide groove is provided in fixing seat, guide pad is provided in guide groove, guide pad side is provided with positioning protrusion, Positioning protrusion stretches out the hollow interior bar, relative motion each other between the stock and the guide pad, sets in the hollow outer bar At least two through-holes are equipped with, when the stock is moved upwardly or downwardly, the guide pad is under the driving of stock in guide groove Corresponding movement is inside done, the positioning protrusion is inserted into or is detached from the through-hole under the drive of guide pad.

The utility model is further arranged to, and the fixing seat is two, is divided into preceding fixing seat and rear fixing seat, this is preceding solid Reservation and rear fixing seat are interlocked.

The utility model is further arranged to, and the stock upper end is bolted with fixture nut, the fixture nut and solid Compressed spring is provided between reservation.

The utility model is further arranged to, and the stock upper end is provided with gasket, the lower end of the compressed spring It is connected on gasket, upper end is connected in fixture nut.

The utility model is further arranged to, and the behaviour area to move up and down for the stock is offered in the fixing seat Domain.

The utility model is further arranged to, and the upper and lower ends of the zone of action offer respectively allows stock to transport up and down Dynamic positioning through hole.

The utility model is further arranged to, and the stock has driving portion, which leads in the inside of guide pad It is located in the zone of action to block.

The utility model is further arranged to, and the stock lower end is provided with clamping portion, be provided with outside the stock with The fixed block of the clamping portion adaptation, fixed block are provided with clamping groove, and the clamping portion is adapted with the clamping groove；It is described solid Determine block and be provided with limiting slot, button is provided with outside the hollow interior bar, button is provided with retention bead, retention bead and the limit Position slot is adapted.

The utility model is further arranged to, and the button upper surface is provided with press section.

The utility model is further arranged to, and is provided with pressing groove on the press section, and the pressing groove is several by reinforced sheet Protrusion composition.

Compared with the prior art, the utility model has prominent and beneficial technical effects that:

1. the utility model moves the positioning device inside locating rod by pressing for button, thus to adjust The height of desktop, such structure have the advantages that laborsaving, easily and fast, accurately when in use.

2. the utility model by the guide groove that is arranged in the fixing seat, make guide pad it is steady during moving left and right, It is smooth；The same zone of action to move up and down for stock, but also stock is more steady when moving up and down, and ensures It runs smoothly effortless, accuracy is strong.

3. set gasket in the utility model, effect are for ensuring that stock 5 being capable of stress in reseting procedure Uniformly, operation is more steady, avoids the occurrence of the case where offset is rocked, while also avoiding user in table top height adjusting During there is security risk.

4. the utility model makes user's pressing process more comfortable by the press section design of button, while whole knot Structure makes user more laborsaving, is more conform with human body routine use habit and ergonomics.

5. the utility model is using the structure mutually fastened, not only structure is simple, stable connection, and it is facilitated to compare appearance Easy processing, assembly or disassembly can reduce production and processing cost for the utility model.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the perspective view of the explosion of the utility model；

Fig. 3 is the local B structure schematic diagram of Fig. 2；

Fig. 4 is the schematic diagram of internal structure of the utility model；

Fig. 5 is the local A structural schematic diagram of Fig. 4；

Fig. 6 is the structural schematic diagram of the fixing seat of the utility model；

Fig. 7 is the structural schematic diagram of the utility model button.

Meaning represented by figure label:

The hollow outer bar of 1-；The hollow interior bar of 2-；3- button；31- retention bead；The press section 32-；33- reinforced sheet；

34- pressing groove；35- protrusion；300- gasket；4- fixing seat；The zone of action 41-；Fixing seat before 42-；

Fixing seat after 43-；5- stock；50- driving portion；The clamping portion 51-；52- fixed block；53- limiting slot；

54- clamping groove；6- positioning through hole；7- guide groove；8- guide pad；9- positioning protrusion；

10- compressed spring；11- fixture nut；12- through-hole.

Specific embodiment

The utility model is further described combined with specific embodiments below:

As shown in Figures 1 and 2, a kind of locating rod includes hollow outer bar 1, and hollow interior bar 2 is equipped in hollow outer bar 1, empty Positioning device is provided between heart outer bar 1 and hollow interior bar 2, the positioning device includes fixing seat 4 and stock 5, the sky It is provided with the fixing seat 4 in intracardiac 2 upper end of bar, guide groove 7 is provided in fixing seat 4, is provided with guide pad in guide groove 7 8,8 side of guide pad is provided with positioning protrusion 9, and positioning protrusion 9 stretches out the hollow interior bar 2, the stock 5 and the guide pad 8 Between relative motion each other, at least two through-holes 12 are provided in the hollow outer bar 1, when the stock 5 is transported upward or downward When dynamic, the guide pad 8 does corresponding movement under the driving of stock 5 in guide groove 7, and the positioning protrusion 9 is in guide pad 8 The through-hole 12 is inserted into or is detached under drive.

As shown in fig. 6, the fixing seat 4 is two, it is divided into preceding fixing seat 42 and rear fixing seat 43, preceding 42 He of fixing seat Fixing seat 43 is interlocked afterwards, and the utility model makes preceding fixing seat 42 and rear fixing seat 43 firm using the structure mutually fastened It is fixed together, not only structure is simple, stable connection, and it is facilitated to be easier processing, assembly or disassembly, practical new to this Production and processing cost can be further decreased for type.

As shown in Figure 4 and Figure 5,5 upper end of stock is bolted with fixture nut 11, the fixture nut 11 and fixing seat Compressed spring 10 is provided between 4.

5 upper end of stock is provided with gasket 300, and the lower end of the compressed spring 10 is connected on gasket 300, upper end Portion is connected in fixture nut 11, is offered between preceding fixing seat 42 and rear fixing seat 43 and is moved up and down for the stock 5 Zone of action 41, zone of action 41 upper and lower ends respectively offer allow stock 5 move up and down positioning through hole 6.Nothing Positioning through hole 6 is set by the upper and lower ends that gasket 300 or zone of action 41 are arranged on stock 5, effect is for ensuring Stock 5 in reseting procedure can uniform force, run more steady, be unlikely to offset the case where rocking occur, simultaneously It also avoids user and security risk occurs during table top height adjusting.

In the present invention, the stock 5 has driving portion 50, which is located at the inside of guide pad 8, is oriented to Block 8 is located in the zone of action 41, and the driving portion 50 in this structure is in contact with guide pad 8, mainly living in about 5 stock The function of driving guide pad 8 to be moved to the left or right, main operational principle are played when dynamic are as follows: this driving portion 50 is relative to whole root long It is incline structure for bar 5, certainly when being used cooperatively, there must be more than one can be with this in guide pad 8 at this time The stress point that incline structure is in contact.This structure can ensure to run smoothly effortlessly, and accuracy is strong.

As shown in figure 3,5 lower end of stock is provided with clamping portion 51, it is provided with and the clamping portion outside the stock 5 The fixed blocks 52 of 51 adaptations, are provided with clamping groove 54 on fixed block 52, the clamping portion 51 is adapted with the clamping groove 54；Institute It states and is provided with limiting slot 53 on fixed block 52, be provided with button 3 outside the hollow interior bar 2, button 3 is provided with retention bead 31, Retention bead 31 is adapted with the limiting slot 53.Since the lower end of stock 5 is comparatively fine and is inconvenient to be stressed directly and connects It connects, in order to ensure the stability of connection and convenience etc., clamping portion 51 is arranged in its lower end in this structure, adds for being adapted to In addition limiting slot 53 is arranged on fixed block 52, can be adapted to button 3 for fixed block 52.In this configuration, fixed block 52 plays The effect of connection stock 5 and button 3, it can be ensured that the stability and convenience of connection, while also solving 5 stress of stock not Just the problem of.

3 upper surface of button as shown in Figure 7 is provided with press section 32, pressing groove 34 is provided on press section 32, this is pressed Indent 34 is made of reinforced sheet 33 and several raised 35, and by protrusion 33, size is put into the setting of reinforced sheet 33 for a finger, The design comparison of the press section 32 meets human body routine use habit while increasing friction in this way, is relatively suitble to ergonomic It learns, keeps user more comfortable using finger during button 3.

In the utility model, when needing to being adjusted within the scope of desk certain altitude, lower button 3, this duration are first pressed Bar 5 moves downward, and guide pad 8 is driven to move right, due to positioning protrusion 9 be arranged on guide pad 8, positioning protrusion 9 with Guide pad 8 is moved out through-hole 12, and then then user will need the desktop that adjusts to lift, when reach desired height it Afterwards, as long as user decontrols button 3, stock 5 will move upwards reset under the elastic force of compressed spring 10 at this time, drive guiding Block 8 is moved to the left, so that positioning protrusion 9 be driven to be inserted into through-hole 12 for this structure positioning.

Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model Within the scope of.

Claims

1. a kind of locating rod includes hollow outer bar (1), be equipped with hollow interior bar (2) in hollow outer bar (1), hollow outer bar (1) and Positioning device is provided between hollow interior bar (2), which is characterized in that the positioning device includes fixing seat (4) and stock (5), it is provided with the fixing seat (4) in hollow interior bar (2) upper end, guide groove (7) is provided in fixing seat (4), are led It is provided with guide pad (8) into slot (7), guide pad (8) side is provided with positioning protrusion (9), and positioning protrusion (9) stretches out the sky Intracardiac bar (2), relative motion each other between the stock (5) and the guide pad (8), be provided on the hollow outer bar (1) to Few two through-holes (12), when the stock (5) is moved upwardly or downwardly, the guide pad (8) under the driving of stock (5) Corresponding movement is done in guide groove (7), the positioning protrusion (9) is inserted into or is detached from the through-hole under the drive of guide pad (8) (12)。

2. locating rod according to claim 1, which is characterized in that the fixing seat (4) is two, is divided into preceding fixing seat (42) it is interlocked with rear fixing seat (43), the preceding fixing seat (42) and rear fixing seat (43).

3. locating rod according to claim 1 or 2, which is characterized in that stock (5) upper end is bolted with fixture nut (11), compressed spring (10) are provided between the fixture nut (11) and fixing seat (4).

4. locating rod according to claim 3, which is characterized in that stock (5) upper end is provided with gasket (300), The lower end of the compressed spring (10) is connected on gasket (300), and upper end is connected on fixture nut (11).

5. locating rod according to claim 2, which is characterized in that between the preceding fixing seat (42) and rear fixing seat (43) Offer the zone of action (41) to move up and down for the stock (5).

6. locating rod according to claim 5, which is characterized in that the upper and lower ends of the zone of action (41) open up respectively The positioning through hole (6) for thering are permission stock (5) to move up and down.

7. locating rod according to claim 5 or 6, which is characterized in that the stock (5) has driving portion (50), the drive Dynamic portion (50) are located at the inside of guide pad (8), and guide pad (8) is located in the zone of action (41).

8. locating rod according to claim 1, which is characterized in that stock (5) lower end is provided with clamping portion (51), It is provided with the fixed block (52) being adapted to the clamping portion (51) outside the stock (5), fixed block is provided with clamping groove on (52) (54), the clamping portion (51) is adapted with the clamping groove (54)；Limiting slot (53), institute are provided on the fixed block (52) It states and is provided with button (3) outside hollow interior bar (2), button (3) is provided with retention bead (31), retention bead (31) and the limit Slot (53) is adapted.

9. locating rod according to claim 8, which is characterized in that button (3) upper surface is provided with press section (32).

10. locating rod according to claim 9, which is characterized in that pressing groove (34) are provided on the press section (32), The pressing groove (34) is made of reinforced sheet (33) and several raised (35).